Method of preparing polymer network by utilizing controllable click chemical reaction system

The invention discloses a method of preparing polymer network by utilizing a controllable click chemical reaction system. The method comprises the following steps: generating a free radial by utilizing a free radial initiator to initiate at a certain temperature; reducing high-valence-state metal ions into low-valence-state metal ions; and synchronously catalyzing an azide compound and an alkynyl compound to carry out click reaction. The method disclosed by the invention utilizes controllability of the free radial initiation efficiency under the temperature to synthesize the polymer network with a regular structure by the polyfunctional-group micromolecule or macromolecule azide compound and the alkynyl compound, so that generation macroscopic defects of the polymer network is avoided, formation of micro defects is reduced and regularity of the polymer network is improved, and therefore, strength of the polymer network is improved.

Antibacterial macromolecule polymer and preparation method thereof

One drags three outdoor rain -proof type batch meters

The utility model relates to an electric power system technical field provides one drags three outdoor rain -proof type batch meters, include: roof, box and the bottom of the case, roof are installed at the box top, and the bottom of the case is installed in the bottom half, the roof is provided with rain -proof structure, the box branch is given first place to, and the ammeter is distinguished and branch ammeter district, and main ammeter district and branch ammeter are distinguished and all be provided with the mounting panel, and main ammeter district installs signal collector and main ammeter case, and signal collector is connected with main ammeter case mutually, divide the ammeter district to install 2 or 3 independent branch ammeter casees, be used for gathering the power consumption of removal or UNICOM or telecommunications respectively, main ammeter case be used for the gathering power consumption total of branch ammeter case, the bottom of the case has entrance hole and wire ...

Method for forming 1,5-subsituted triazole ring through catalyzing click by rare earth

The invention discloses a method for forming a 1,5-subsituted triazole ring through catalyzing click by rare earth. The method comprises the following steps: generating a free radical from a free radical initiator at a certain temperature or under illumination, reducing high valence rare earth metal ions to form low valence rare earth metal ions, and synchronously catalyzing a click reaction of an alkynyl compound and a nitrine compound. The method allows one or more nitrine groups and one or more alkynyl groups to form the 1,5-triazole ring through using the controllability of the free radical initiation efficiency at a temperature or under illumination. The method for forming the 1,5-triazole ring has the advantages of simple operation, no need of ligands, easily available reaction materials, rapid reaction, mild reactions, short reaction time, structured structure of the 1,5-triazole ring, and high reaction yield.

Method for preparing polyurethane polymer network

The invention discloses a method for preparing a polyurethane polymer network. The polyurethane polymer network is generated through click reaction of polyurethane containing three or more than three multi-terminal azido and a polyether/ester polyhydric alcohol derivative containing at least two endlap alkynyl. The method is characterized in that a multi-terminal azido polyether polyhydric alcohol derivative chain synthesized through polyaddition reaction is capable of adjusting location and quantity of connecting points, and then the required 'designability' polyurethane polymer network structure is obtained through click chemistry reaction. The method is simple to operate and fast in reaction; the polyurethane polymer network prepared by using the method has the advantages of good machining property, good biocompatibility, strong hydroscopicity, degradability, regular structure, high mechanical strength and the like.

Antibacterial macromolecule polymer and preparation method thereof

The invention discloses high molecular polymer having antibacterial performance and the preparation method thereof. The polymer is copolymer generated by polymerizing at least a vinyl halogenated phenol monomer A and at least an acrylic ester tertiary amine derivative monomer B; the copolymer is random copolymer, block copolymer, or branched copolymer. Because the molecular structure includes a halogenated phenol base group and a tertiary amine base group which are mutually linked to generate quarternary ammonium salt, thereby having good antibacterial performance, and the problem of ineffective bacterial resistance caused by the drain of small molecule of prior quarternary ammonium salt functional group antibacterial high molecule is solved; the polymer of the invention has the advantages of long efficiency, no small molecule leakage, no pollution, antibiosis universality, etc.; the invention can be widely used for the fields of food package, medical appliances, public equipment, sewage ...

Polyurethane composite material, laminated product comprising same, and method for preparing same

The invention relates to a novel polyurethane (PU) composite material, a method for preparing the PU composite material and a covering product containing the PU composite material. The PU composite material comprises 35 to 75 wt% of reinforcing fibers and 25 to 65 wt% of polyurethane foam, based on the total weight of the PU composite material; wherein the reinforcing fibers comprise 75 to 100% by weight of reinforcing fibers in the form of a continuous phase and 0 to 25% by weight of reinforcing fibers in the form of a discontinuous phase, based on the total weight of the reinforcing fibers. The invention also relates to a laminated product comprising at least one insulating layer and at least two layers of polyurethane composite material arranged on each side of the insulating layer, to a method for producing said laminated product and to a cover product for a battery system comprising said laminated product.

Method of preparing quaternary ammonium salt polymer network

The invention discloses a method of preparing a quaternary ammonium salt polymer network. A polyether/ester polyhydric alcohol derivative containing three or more than three multi-terminal tertiary amine groups and an organic compound containing at least two terminal-halogenated groups have quaterisation under a certain temperature to generate the quaternary ammonium salt polymer network. The method disclosed by the invention is simple to operate, does not need a catalyst or a ligand, uses easily available reaction materials, and is quick in reaction. The quaternary ammonium salt polymer network prepared by the method disclosed by the invention has the advantages of strong antibacterial performance, good biocompatibility, degradability, regular structure, high mechanical strength and the like.

Method for preparing polyethylene glycol network hydrogel

The invention discloses a method for preparing polyethylene glycol network hydrogel. A polyethylene glycol derivative containing three or more multi-terminal alkynyls and a polyethylene glycol derivative at least containing two terminal overlapped nitrogenous bases are subjected to click reaction, so that the polyethylene glycol network hydrogel is generated. According to the method disclosed by the invention, the position and the number of polymer chain join points are controlled by utilizing amino-epoxy polymerization reaction; then, a required design type polymer network structure is obtained by utilizing click chemical reaction. The method disclosed by the invention is simple for operation, moderate in condition and rapid in reaction; the polymer network prepared by using the method disclosed by the invention has the advantages of being degradable, good in biocompatibility, regular in structure, high in mechanical strength and the like.

Method and device for predicting elevation of concentrated leakage channel

The invention provides a method and device for predicting the elevation of a concentrated leakage channel, and relates to the technical field of water conservancy and hydropower engineering. The method comprises the following steps: obtaining observation values of a target water conservancy facility at multiple observation times, wherein the observation values comprise the water level elevation of the target water conservancy facility and the leakage flow at a concentrated leakage outlet; according to the observation value of each observation time, fitting by using a least square method to obtain a prediction parameter; according to the prediction parameter and a pre-constructed prediction function, the centralized leakage channel elevation of the target water conservancy facility is predicted, an independent variable in the prediction function is the leakage flow at the centralized leakage outlet in the observation value, a dependent variable is the water level elevation of the target ...

Double-S-type resident electricity consumption temperature prediction method

The invention relates to a double-S-type resident electricity consumption temperature prediction method. The method comprises the following steps of 1, solving parameters of a model expression; step 2, temperature treatment; step 3, inflection point processing; 4, temperature transition period treatment; 5, model rolling correction is carried out; the method has the advantages that the segmentation points are unique, breakpoints do not exist, the model fitness is high, and high prediction accuracy can be guaranteed without real-time adjustment.

Movement classification-based pedestrian self-positioning method

The invention discloses a movement classification-based pedestrian self-positioning method. The method comprises the following steps: 1, classifying data output by a wearable IMU on a pedestrian, and recognizing IMU placing positions of feet, a waist and a chest in an adaptive manner; 2, determining thresholds for the movement classification division through analyzing data output by the wearable IMU to classify movement such as staying, walking and running; 3, performing recognition capture at transient moments in the movement state of the pedestrian; 4, acquiring the pedestrian attitude, speed, position information through the navigation solution of strap-down inertial navigation; 5, realizing the adaptive filtering design combined with the IMU position reorganization, the movement classification result and the transient moment detection result; 6, updating a navigation result in the pedestrian movement process. Through the adoption of the method, the movement data classification problem ...

Macromolecule polymer and method for preparing the polymer and nano fibre thereof

The invention discloses high polymer and a preparation method of high polymer and nano-fiber thereof. The polymer is copolymer which is polymerized by at least a vinyl halogenated phenols monomer A, at least a vinyl tertiary amine monomer B and at least a monomer C with cross-linkable group. Monomer A, monomer B and monomer C make polymerization in the presence of initiating system. The reaction temperature is 40-120 DEG C and reaction time is 4-24 hours; the objective copolymer is obtained by precipitation, filtration and drying after the reaction. The solvent-resistance nano-fiber can be prepared after electrostatic spinning and crosslinking treatment of the polymer. Since the molecular structure of the polymer and nano-fiber contains halogen phenol group and tertiary amine group which can be mutually bonded to form quaternary ammonium salt, the polymer and nano-fiber of the invention has excellent antibacterial performance; meanwhile the nano-fiber is crosslinking structure, so thenano-fiber ...

Raceway bridge construction convenient to construction and maintenance

The utility model discloses a raceway bridge construction convenient to construction and maintenance, including the pier structure with lie in the abutment pier structure at pier structure both ends, at least 2 stride body of a bridge structure lays between the pier structure, and lays between pier structure and abutment pier structure, provides the cell type girder construction at body of a bridge structure middle part, the raceway is placed in the cell type girder construction, the tube seat that corresponds in the structural setting of abutment pier and cell type girder construction realizes the raceway and draws and introduce, lay to lap the realization and seal up on cell type girder construction and tube seat, the utility model discloses both through in the structural beam channel structure that sets up of the body of a bridge, guarantee the intensity of body of a bridge structure itself again under, can realize the quick installation of raceway, can realize the timely maintenance ...

Pedestrian motion detecting method based on leg pose information

Theinvention discloses a pedestrian motion detecting method based on leg pose information. The method comprises the following steps: arranging three-axis gyroscope sensors on the thigh parts of an examinee and transmitting the acquired angular speed information to a computer through a wireless mode; acquiring the leg annular speed of a pedestrian in the motion process, and calculating the leg detecting angles; carrying out positive peak value extraction and zero-cross detection on the calculated leg detecting angle measuring values; and carrying out motion classifying determination according to the detecting result and outputting. According to the pedestrian motion detecting method, the motions such as running, walking, standing, sitting and squatting can be effectively distinguished, and the method can be used for assisting personal navigation systems, M-health systems and other systems to estimate the pedestrian motion state and position, so that an effective solution is provided for ...

Battery case and battery pack

The invention discloses a battery shell which comprises at least one resin-based composite material layer and at least one waterproof layer, and the resin-based composite material layer and the waterproof layer are mutually jointed through hot pressing. The invention also discloses a battery pack which comprises the battery shell.

Automatic indoor three-dimensional space locating device

An automatic indoor three-dimensional space locating device comprises an outdoor signal receiving base station, an individual smart locating unit and an outdoor signal data analysis terminal. The automatic indoor three-dimensional space locating device is mainly applied to occasions where the indoor environments of fire rescue and disaster search and rescue sites are seriously damaged, can overcome the defects that a traditional preset node type indoor locating device needs to be installed in advance, needs external power supply, and is damaged easily, and also can effectively overcome the defects that a traditional automatic indoor locating device is large in shift and poor in stability.

Method for preparing amphipathic nano microsphere composite network aquagel

The invention discloses a method for preparing an amphipathic nano microsphere composite network aquagel. Click reaction is performed on nano microspheres containing azido group on the surface and polyethyleneglycol derivatives at least containing two terminal alkynyl groups to generate amphipathic nano microspheres used as a composite network of cross-linking points. According to the method, microemulsion polymerization is utilized to prepare amphipathic functional nano microspheres, and the click chemical reaction is utilized to obtain the required designable composite network structure. The method is simple to operate, and has the advantages of mild conditions and high reaction speed; and the polymer network prepared by the method has the advantages of controllable swelling capacity, regular structure, high controllable mechanical strength and the like.

Hydrogel system nano-scale phase change-based temperature-sensitive intelligent glass

The invention discloses hydrogel system nano-scale phase change-based temperature-sensitive intelligent glass. The intelligent glass can produce a transition between a transparent appearance and an opaque appearance at a critical temperature. The intelligent glass is composed of glass sheets and temperature responsive hydrogel with an interpenetrating network structure, wherein the hydrogel is arranged between two of the glass sheets at least. The hydrogel is composed of a water-soluble cross-linked polymer network, temperature responsive polymers and water or inorganic salt aqueous solution, wherein the temperature responsive polymers run through the water-soluble cross-linked polymer network. The hydrogel can form a homogeneous system at a temperature below a critical temperature, and the temperature responsive polymers and the water-soluble cross-linked polymer network carry out a nano-scale phase separation at a temperature above the critical temperature. In the invention, temperature ...

Method of utilizing one-pot reaction to prepare metal coordination polymer gel

The invention discloses a method of utilizing a one-pot reaction to prepare metal coordination polymer gel. The method comprises the following step: using the one-pot reaction in the metal coordination chemistry and click chemistry to enable an organic compound and a polydentate ligand organic compound to carry out a click reaction under the action of a metal catalyst, so as to generate the metal coordination polymer gel, wherein the organic compound comprises two or more multiterminal azido groups; the polydentate ligand organic compound at least comprises one terminated alkynyl. The method disclosed by the invention is simple to operate, accessible in reaction materials, moderate in reaction conditions, and high in reaction speed; the metal coordination polymer gel prepared by the method disclosed by the invention has the advantages of regular structure, external stimuli response, self-repairing, unique photoelectromagnetic property and the like.

Polyvinyl alcohol/modified glass fiber composite material and preparation method thereof

The invention discloses a polyvinyl alcohol/modified glass fiber composite material. The composite material is composed of a polyvinyl alcohol matrix and modified glass fibers bonded with the polyvinyl alcohol matrix through hydrogen-bond interaction. The modified glass fiber is aminated glass fiber, carboxylated glass fiber or hydroxylated glass fiber. The invention also discloses a preparation method of the polyvinyl alcohol/modified glass fiber composite material. According to the composite material, polyvinyl alcohol is adopted as a base material, aminated, carboxylated and hydroxylated glass fibers are obtained by conducting surface pretreatment on the glass fibers and conducting modification on surface functional groups, and the functional groups can enhance the surface roughness and surface energy of the glass fibers; therefore, the compounding effect and compatibility of the glass fiber and the matrix material are improved, and the mechanical property of the composite material is ...

Picking device simulating bird to clamp food

The invention discloses a picking device simulating bird clamping for food. The device comprises at least one picking manipulator used for collecting an image related to a to-be-picked target, transmitting the collected image to a control platform, and clamping the to-be-picked target based on the control of the control platform; and the control platform is used for identifying whether the collected image contains the target to be picked or not, and controlling the at least one picking manipulator to clamp the target to be picked under the condition that the collected image contains the target to be picked. The technical problems that a picking machine is low in picking efficiency and poor in picking quality are solved.

View formula wave wall build structure

... (B, ) the utility model discloses a view formula wave wall build structure is including dykes and dams (1), be equipped with base (2) at dykes and dams (1) tops, it is articulated with waterwall (3) back side bottom that base (2) are close to river surface one side, be equipped with strutting arrangement (4) on base (2), strutting arrangement (4) are articulated with waterwall (3) back side top. The utility model discloses a convertible waterwall substitutes present method of forever increasing dykes and dams, does not not only influence the view in river course, still can improve the dykes and dams surrounding environment, and is interim when the flood, need not to drop into a large amount of manpower goods and materials and increases the dyke temporarily. Can accomplish in a short period of time. Be convenient for behind the flood resume to hide, operating repair is well very convenient. (B, ) ...

Optothermal response system, resin material and optothermal response smart glass

The invention discloses an optothermal response system, an optothermal response resin material prepared by using the optothermal response system as a polymer processing aid, and optothermal response smart glass. The system is obtained by mixing transition metal ions, a polyhydric alcohol ligand compound, a light-sensitive halide and an organic nitrogen compound and/or a phosphorus compound and then performing conformational transition on the mixture by use of an organic transition metal compound. The optothermal response system has double response to light and heat, and is capable of autonomously changing in intensity of color and light transmissivity according to the change of the environment temperatures and the light intensity. The optothermal response resin material has a wide application prospect in the fields such as glass curtain walls, building door and window glass, automobile glass and agricultural greenhouse films. The optothermal response smart glass has relatively high shading ...

Three-dimensional sensitive structure element with multi-curved-surface fusion and vibratory gyroscope comprising same

The invention discloses a three-dimensional sensitive structure element with multi-curved-surface fusion and a vibratory gyroscope comprising the same. The three-dimensional sensitive structure element comprises a three-dimensional sensitive structure (1), piezoelectric electrodes (2), a supporting middle shaft (3), a base (4) and a shell (5), wherein the three-dimensional sensitive structure (1) is wholly processed and integrally formed by adopting constant-elastic alloy material (Ni43CrTi), forms a Psi-shaped resonance structure with the supporting middle shaft (3) and fixed onto the base (4) through a mechanical means; the piezoelectric electrodes (2) are attached onto the outer surface of the three-dimensional sensitive structure (1). The three-dimensional sensitive structure element disclosed by the invention is designed by structure optimization and has the characteristic of multi-curved-surface fusion, and has high quality factor and overload resistance, and the solid vibratory gyroscope ...

Integrated navigation intelligent alignment method based on Kalman filtering and feedback control

Disclosed is an integrated navigation intelligent alignment method based on Kalman filtering and feedback control. A feedback loop is built through the observed noise in Kalman filtering, a model noise variance matrix is adjusted on line by applying a machine learning theory in the loop, an estimation mean square error matrix and a filtering gain matrix of a filter are changed, so that filter scattering is prevented, and the filtering accuracy is improved. The integrated navigation intelligent alignment method based on Kalman filtering and feedback control overcomes the defect that in an integrated navigation theory, Kalman filtering can not reach the best performance even scatters due to a noise estimation error and non-linear influence, improves the misalignment angle estimation performance of a navigation device applying Kalman filtering, and can be applied to the fields of target positioning, target tracking, the navigation technology and the like.

Inertial measurement unit for fire fighting scene

The invention relates to an inertial measurement unit for a fire fighting scene. The inertial measurement unit comprises an inertia information sensing assembly, a magnetic field intensity sensing assembly, a temperature sensing assembly, an environment sensing assembly, a man-machine interaction assembly, an alarming assembly, a data processing assembly, a data transmission assembly and a battery; the inertial measurement unit is mainly applied to occasions that indoor environments such as fire rescue scenes and disaster search and rescue scenes are severely damaged, is installed on a fireman body, can overcome the defects that a traditional saving alarm cannot locate in real time and causes false alarm, and also can overcome the defects that a traditional inertial measurement unit cannot perform environment sensing and sound-light alarming; the inertial measurement unit has the advantages of simple structure, high starting speed, low false alarm rate, strong stability, high locating precision ...

Movable base self-aligning method

The invention discloses a movable base self-aligning method. The movable base self-aligning method comprises the following steps: (1) firstly, with the pitch angle rate and the yaw angle rate measured by a gyroscope as well as the pitch angle rate and the yaw angle rate of a carrier under a navigation coordinate system as variables, establishing a rapid self-aligning model of the pitch angle Theta to serve as an initially aligned initial pitch angle; (2) establishing an attitude algorithm model based on a geomagnetic sensor measurement technology, and calculating the yaw angle Psi and the rolling angle gamma at the current moment with the calculated pitch angle in the step (1) as a known condition, thereby finishing a movable base coarse-alignment process; (3) establishing a movable base fine-alignment model based on the combination of Kalman filtering and geomagnetic measurement technologies, thereby achieving a fine-alignment process just by using the coarsely aligned attitude angle of ...

Unmanned aerial vehicle indoor positioning method and device and unmanned aerial vehicle

The invention discloses an unmanned aerial vehicle indoor positioning method and device and an unmanned aerial vehicle. The method comprises the following steps: acquiring communication data between each base station and an unmanned aerial vehicle, and estimating an initial position of the unmanned aerial vehicle by using a Chen's positioning algorithm; performing critical standard judgment on the initial position; under the condition that the critical judgment standard is greater than a preset value, further estimating and predicting the initial position by using an extended Kalman algorithm to obtain an estimated position of the unmanned aerial vehicle, and performing iterative processing on the estimated position by using a Taylor positioning algorithm to obtain an observation position of the unmanned aerial vehicle so as to position the unmanned aerial vehicle; and under the condition that the critical judgment standard is smaller than or equal to the preset value, taking the initial ...

Method for producing wood-plastic composite material and produced wood-plastic composite material

The invention relates to a wood-plastic composite material and a preparation method thereof. The method is characterized in that: macromolecular emulsion is uniformly mixed with plant fibers, and the wood-plastic composite material is prepared through drying, dehydration and moulding of the mixture, wherein, the macromolecular emulsion is polymerized by monomers containing double bonds by adoption of the emulsion polymerization method in the presence of a water-soluble initiator, water and a water-soluble emulsifying agent; the plant fibers are plant fiber particles prepared through crushing of one type or a plurality of types of plant straws, a particle diameter is between 1 and 2,000 micrometers; and the content of the plant fibers is 50 to 95 percent of the wood-plastic composite material, and the content of the macromolecular emulsion is 5 to 50 percent of the wood-plastic composite material. The composite wood-plastic composite material prepared by the method has the advantages of ...

Method for producing wood-plastic composite material and produced wood-plastic composite material

A method for preparing a wood plastic composite and the prepared wood plastic composites thereof are characterized in that: the micelles water solution and the plant fibers of the nanoparticles of an amphiphilic block copolymer, which is gained after being molded by dry dehydrated; wherein the micelles water solution of the polymer nanoparticles prepares the polymer interpolymer by using the reversible addition fragmentation chain reaction of the hydrophilic monomer and the hydrophobic monomer and the interpolymer is prepared into nanoparticles by the giant molecule self-assembly technique; the plant fibers refer to the plant fiber particles gained by one or a plurality of plant straws being crashed and the diameter of the particles is 1 to 2000 micrometers; the plant fibers account for 50 to 95 percent of the composite and the nanoparticles water solution accounts for 5 to 50 percent of the composite. The composite prepared by the invention has a good woodiness sense, excellent mechanical ...

Method for preparing polymer network by utilizing rare-earth catalytic click chemistry system

The invention discloses a method for preparing a polymer network by utilizing a rare-earth catalytic click chemistry system. The method comprises the following steps: generating free radicals under initiation of a certain temperature by utilizing a free radical initiator, reducing high-valence rare earth metal ions into low-valence rare earth metal ions, and performing synchronous catalysis on an alkynyl compound and an azide to carry out a click reaction. According to the method disclosed by the invention, the controllability of the free radical initiation efficiency at the temperature is utilized, and an organic compound containing three or more than three multi-terminal azide groups and an organic compound containing at least two terminal alkynyl groups are used for synthesizing the polymer network with a regular structure according to the method. According to the method disclosed by the invention, the operation is simple, a ligand is not needed, the reaction materials are readily available ...

Indoor autonomous three-dimensional space locating information fusion method

The invention relates to an indoor autonomous three-dimensional space locating information fusion method. The method is characterized in that long-term drift of an inertial component is restrained by virtue of zero-transient characteristics of human motion. The method comprises the following steps: judging a motion behavior state of a human body by perceiving an irregular motion behavior of the human body in a complex environment of inertial measurement combination and intelligent information fusion; analyzing the zero-transient characteristics of linear motion and angle motion of the human body, and determining a zero-transient judging rule according to multi-portion sensing information; and establishing an inertial positioning equation fused with the characteristic of the irregular motion behavior of the human body in a dynamic environment; and solving a nonlinear, time-variant and sampling-time-variant special system by determining a zero-transient trigger correction state and relation ...

Method for producing wood-plastic composite material and produced wood-plastic composite material

A method for preparing a wood plastic composite and the prepared wood plastic composites thereof are characterized in that: the micelles water solution and the plant fibers of the nanoparticles of an amphiphilic block copolymer, which is gained after being molded by dry dehydrated; wherein the micelles water solution of the polymer nanoparticles prepares the polymer interpolymer by using the reversible addition fragmentation chain reaction of the hydrophilic monomer and the hydrophobic monomer and the interpolymer is prepared into nanoparticles by the giant molecule self-assembly technique; the plant fibers refer to the plant fiber particles gained by one or a plurality of plant straws being crashed and the diameter of the particles is 1 to 2000 micrometers; the plant fibers account for 50 to 95 percent of the composite and the nanoparticles water solution accounts for 5 to 50 percent of the composite. The composite prepared by the invention has a good woodiness sense, excellent mechanical ...

Reticular polymer gel based on polyethylene glycol and preparation method thereof

The invention discloses a reticular polymer gel based on polyethylene glycol and a preparation method thereof. The main chain of the molecular structure of the reticular polymer gel is a polyethylene glycol esterified polymer, and the side chain is a polyethylene glycol derivative azide with the structure shown in formula (I), wherein n is an integer selected from 4-454, and m is an integer selected from 2-10. The polymer gel is prepared from the polyethylene glycol esterified main chain with terminal alkynyl and the linear polyethylene glycol side chain with terminal azido under the action of a catalyst through click chemistry reaction.

Method for producing wood-plastic composite material and produced wood-plastic composite material

The invention relates to a wood-plastic composite material and a preparation method thereof. The method is characterized in that: macromolecular emulsion is uniformly mixed with plant fibers, and the wood-plastic composite material is prepared through drying, dehydration and moulding of the mixture, wherein, the macromolecular emulsion is polymerized by monomers containing double bonds by adoption of the emulsion polymerization method in the presence of a water-soluble initiator, water and a water-soluble emulsifying agent; the plant fibers are plant fiber particles prepared through crushing of one type or a plurality of types of plant straws, a particle diameter is between 1 and 2,000 micrometers; and the content of the plant fibers is 50 to 95 percent of the wood-plastic composite material, and the content of the macromolecular emulsion is 5 to 50 percent of the wood-plastic composite material. The composite wood-plastic composite material prepared by the method has the advantages of ...

Method for preparing polymer network by utilizing bulk click chemical system

The invention discloses a method for preparing a polymer network by utilizing a bulk click chemical system. The method comprises the following step of carrying out click reaction on an organic compound containing three or more than three multi-terminal alkynyl and an organic compound containing at least two terminal azido in the presence of a nanoscale metal catalyst to obtain the polymer network. The method disclosed by the invention is simple in operation, high in click efficiency and rapid in reaction; the polymer network prepared by adopting the method disclosed by the invention is few in macroscopic and microcosmic defects and the regularity of the polymer network is increased, so that the physical strength and the mechanical strength of the polymer network are increased.

Preparation method of network interpenetrating functional aquagel

The invention discloses a method for preparing network interpenetrating functional aquagel through the click chemistry and the atom transfer radical polymerization (ATRP) synchronous reaction. The polymer network is generated through the click reaction of monomers A containing three or more than three end alkynyl radicals and monomers B at least containing two end laminated nitrogen radicals, andnetwork interpenetrating polymers are obtained through the atom transfer radical polymerization (ATRP) by double-bond-containing monomers C with functional groups. The click chemistry and the atom transfer radical polymerization are synchronously carried out in the same catalytic system, and the network interpenetrating functional aquagel with the regular structure is obtained. The method of the invention has the advantages of the click chemistry and the ATRP, and also has the advantages of simple operation and fast reaction. The functional aquagel prepared by the method of the invention based on ...

Combination control platform for snakelike robot simulation experiment

The invention discloses a combination control platform for a snakelike robot simulation experiment. The platform is set up through the following steps: firstly, building a structural model of the snakelike robot through UG (Unigraphics) software according to a prototype of the snakelike robot; secondly, importing the model built in the UG software to an Adams/View module of Adams (Automatic Dynamic Analysis of Mechanical Systems) software, and setting up motion constraints of the snakelike robot so as to meet the setting requirements of the Adams software for kinematical and dynamic simulation; thirdly, completing the input settings for Matlab (Matrix Laboratory) software in the Adams/View module; fourthly, creating a kinematical equation and a dynamic equation in the Matlab software according to the dimensions of the prototype of the snakelike robot; fifthly, using motion information resolved through the Matlab software as an input signal, transmitting the signal to the Adams/View module ...

Antibacterial macromolecule polymer and preparation method thereof

Preparation method of multi-structure anisotropic hydrogel based on oxygen-heat dual drive

The invention discloses a preparation method of multi-structure anisotropic hydrogel based on oxygen-heat dual drive, which uses gradient dissolved oxygen and heat transfer in nature as driving force of a gradient structure, and uses electrostatic attraction among polyelectrolytes as driving force of a phase separation structure at the same time. The structure is fixed by free radical polymerization, the integrated multi-structure anisotropic hydrogel is prepared, and the prepared hydrogel has good response type deformation capacity and excellent mechanical performance and has wide application prospects.

High-speed GPS receiver signal capture method

Provided is a high-speed GPS receiver signal capture method. A capture loop is assisted through inertia information and ephemeris information, Doppler frequency shift at the next moment is forecasted, the frequency range of GPS signals is estimated in advance, and Doppler frequency is searched for within the range; before a complex signal and a local code sequence of a base band are subjected to FFT operation, extraction processing with the extraction factor of M is performed, and then iteration is performed on the value of M according to the capture result till capture succeeds. According to the method, operand is reduced by reducing the number of operation points of FFT. According to the method, the operand is reduced by reducing the number of operation points of the FFT, meanwhile, the frequency search time is shortened, and high-dynamic GPS signals can be fast captured.

Method for preparing accurate polymer network

The invention discloses a method for preparing an accurate polymer network. The number of azide functional groups at the tail end of a polymer is controlled accurately by using a method combining reversible addition-fragmentation chain transfer (RAFT) and click chemistry, so that the number of crosslinking points is controlled and a regular polymer cross-linked network structure is prepared. In the method disclosed by the invention, gel in the polymer network is generated by performing a click reaction on two or more accurately-controlled functional end group azide or alkyne functional groups (E) at the tail end of a polymer chain and two or more end alkynyl or azide functional groups (E) via multiple steps of RAFT. The method has the advantages of accurate controllability of the number of crosslinking points and density of a polymer cross-linked network structure and suitability for various polymer network structures containing different functional groups.

Personal portable auxiliary multisource locating information correcting method

The invention discloses a personal portable auxiliary multisource locating information correcting method which can be used for correcting locating errors by inhibiting inertial drift by together using static gait features during pedestrian movement and external auxiliary electromagnetism locating information. The method comprises the following steps: (1) obtaining accelerated speed, angular speed, and geomagnetism information during the pedestrian movement, and calculating strap-down inertial three-dimensional space locating information; (2) obtaining electromagnetism locating signals and solving the three-dimensional space locating information; (3) carrying out static testing according to pedestrian movement detection constraint conditions; (4) building a local kalman filter by using zero-speed information and magnetic course information, and carrying out filter estimation on pedestrian locating information; and (5) building a main filter, carrying out the filter estimation on the pedestrian ...

Macromolecule polymer and method for preparing the polymer and nano fibre thereof

The invention discloses high polymer and a preparation method of high polymer and nano-fiber thereof. The polymer is copolymer which is polymerized by at least a vinyl halogenated phenols monomer A, at least a vinyl tertiary amine monomer B and at least a monomer C with cross-linkable group. Monomer A, monomer B and monomer C make polymerization in the presence of initiating system. The reaction temperature is 40-120 DEG C and reaction time is 4-24 hours; the objective copolymer is obtained by precipitation, filtration and drying after the reaction. The solvent-resistance nano-fiber can be prepared after electrostatic spinning and crosslinking treatment of the polymer. Since the molecular structure of the polymer and nano-fiber contains halogen phenol group and tertiary amine group which can be mutually bonded to form quaternary ammonium salt, the polymer and nano-fiber of the invention has excellent antibacterial performance; meanwhile the nano-fiber is crosslinking structure, so the nano-fiber ...

Antibacterial macromolecule polymer and preparation method thereof

The invention discloses high molecular polymer having antibacterial performance and the preparation method thereof. The polymer is copolymer generated by polymerizing at least a vinyl halogenated phenol monomer A and at least a vinyl pyridine monomer B; the copolymer is random copolymer, block copolymer, or branched copolymer. Because the molecular structure includes a halogenated phenol base group and a tertiary amine base group which are mutually linked to generate quarternary ammonium salt, thereby having good antibacterial performance, and the problem of ineffective bacterial resistance caused by the drain of small molecule of the prior quarternary ammonium salt functional group antibacterial high molecule is solved; the polymer of the invention has the advantages of long efficiency, no small molecule leakage, no pollution, antibiosis universality, etc.; the invention can be widely used for the fields of food package, medical appliances, public equipment, sewage treatment, clothes,coating ...

Preparation method of network interpenetrating functional aquagel

The invention discloses a method for preparing network interpenetrating functional aquagel through the click chemistry and the atom transfer radical polymerization (ATRP) synchronous reaction. The polymer network is generated through the click reaction of monomers A containing three or more than three end alkynyl radicals and monomers B at least containing two end laminated nitrogen radicals, and network interpenetrating polymers are obtained through the atom transfer radical polymerization (ATRP) by double-bond-containing monomers C with functional groups. The click chemistry and the atom transfer radical polymerization are synchronously carried out in the same catalytic system, and the network interpenetrating functional aquagel with the regular structure is obtained. The method of the invention has the advantages of the click chemistry and the ATRP, and also has the advantages of simple operation and fast reaction. The functional aquagel prepared by the method of the invention based ...

Reticular polymer gel based on polyethylene glycol and preparation method thereof