Anti-aging polypropylene composite material as well as preparation method and application thereof

The invention belongs to the technical field of polymer modified materials, and particularly relates to an anti-aging polypropylene composite material as well as a preparation method and application thereof. The invention relates to an anti-aging polypropylene composite material, which comprises the following raw materials by mass: 35-65 parts of polypropylene resin; 2-20 parts of an ethylene propylene diene monomer reclaimed material; 20 to 40 parts of glass fiber; 0.1-1 part of a light stabilizer; 0.1 to 1 part of an antioxidant; the glass fibers comprise chopped glass fibers and continuous glass fibers. The continuous glass fibers and the chopped glass fibers are compounded, so that the orientation of the glass fibers can be effectively reduced, the warping is reduced, and the cost is reduced; the ethylene propylene diene monomer reclaimed material is selected as a toughening agent, so that the impact resistance of the material can be effectively enhanced, the material is not easy to ...

Microbial pollution control method and device, computer equipment and storage medium

The invention relates to a microbial pollution control method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a first actual microbial pollution value at a filter in a nuclear main pump No.3 shaft seal water injection system; determining the microbial pollution degree of the nuclear main pump No.3 shaft seal water injection system according to the first actual microbial pollution value and the first standard microbial pollution value at the filter; and according to the microbial pollution degree, determining a replacement condition for replacing a filter in the nuclear main pump No.3 shaft seal water injection system, and according to the replacement condition, replacing the filter in the nuclear main pump No.3 shaft seal water injection system so as to realize microbial pollution control on the nuclear main pump No.3 shaft seal water injection system. By adopting the method, long-term reliable operation of the third shaft seal of ...

Method for displaying and authenticating dynamic bar codes

The invention relates to a method for displaying and authenticating dynamic bar codes, in particular to a bar code display method applied to authentication on electronic equipment. The method for displaying and authenticating the dynamic bar codes mainly comprises the operation flows of authentication information, a bar code generating module and a bar code display module at a handheld movable device end and the operation flows of a bar code reader and an authentication host at an authentication end; the authentication information is generated by an electronic ticket service center, transferred to a handheld movable device and converted by the bar code generating module on the handheld movable device into an authentication bar code image; and non-authentication bar code images are respectively inserted in front and behind the authentication bar code image to form a combined bar code which can be displayed on a screen of the handheld movable device by the bar code display module in a carrousel ...

Method for displaying and authenticating dynamic bar codes

The invention relates to a method for displaying and authenticating dynamic bar codes, in particular to a bar code display method applied to authentication on electronic equipment. The method for displaying and authenticating the dynamic bar codes mainly comprises the operation flows of authentication information, a bar code generating module and a bar code display module at a handheld movable device end and the operation flows of a bar code reader and an authentication host at an authentication end; the authentication information is generated by an electronic ticket service center, transferred to a handheld movable device and converted by the bar code generating module on the handheld movable device into an authentication bar code image; and non-authentication bar code images are respectively inserted in front and behind the authentication bar code image to form a combined bar code which can be displayed on a screen of the handheld movable device by the bar code display module in a carrousel ...

Electronic finance bills system capable of hiding information

Blank-filling bar code circle menu and manufacturing and interpreting methods thereof

The invention discloses a blank-filling bar code circle menu and manufacturing and interpreting methods thereof. A bar code which is originally incomplete in the appearance and cannot be interpreted is marked and filled, so that the bar code is complete in the appearance, can be interpreted, serves as a mark that whether each option in a circle menu such as an answer card, an order and a questionnaire is circled or not, and is supplied to a machine for interpretation; and the circle menu such as the answer card, the order and the questionnaire has a bar code which is complete in the appearance, can be interpreted and identifies a code of the menu, and a bar code which is complete in the appearance, can be interpreted and identifies the identity of a person performing the circle selection, but each option in the circle menu corresponds to a bar code which has original content to identify the option but is incomplete in the appearance and cannot be integrated, and the bar code corresponding ...

Anti-aging and flame-retardant polypropylene composite material as well as preparation method and application thereof

The invention belongs to the technical field of polymer modified materials, and particularly relates to an anti-aging and flame-retardant polypropylene composite material as well as a preparation method and application thereof. The anti-aging and flame-retardant polypropylene composite material comprises the following raw materials in parts by mass: 20-60 parts of polypropylene resin; 1-10 parts of a compatilizer; 5-25 parts of an ethylene propylene diene monomer reclaimed material; 5-30 parts of a smoke suppression flame retardant; 0.1-2 parts of a light stabilizer; 0.1 to 2 parts of an antioxidant; and 10 to 40 parts of glass fiber. The anti-aging and flame-retardant polypropylene composite material disclosed by the invention has excellent mechanical properties and light and thermal aging resistance; the tensile strength is larger than 85 MPa, the bending modulus is larger than 6000 MPa, the cantilever notched impact strength is larger than 165 J/m, the strength is higher than that of ...