Water-based nitrolacquer-resistant adhesive tape and method for preparing adhesive of adhesive tape

Technical Field

The invention relates to a tape and its sizing agent preparation method, in particular relates to a water-based lacquer adhesive tape and its sizing agent preparation method.

Background Art

In the market at present the use of lacquer-resistant tape, in order to solvent-based adhesive is applied to the main, wherein the solvent-based adhesives made of lacquer-resistant tape, often residual with toluene, ethyl acetate and the like organic solvent, low toxicity to the environment, and the cost is high; in the case of market in a small amount of aqueous acrylic emulsion made of lacquer-resistant tape, of lacquer-resistant articles single, can not cover used on the market lacquer, wetting and anti-UV effect is poor, high cost, and with water or using the environment humidity will be swelling under the condition of, caused by the force of the drop of the adhesive tape, and the tape to fall off, the use is very limited.

In view of the above-mentioned defect, there is an urgent need of the invention also provides a new water-based lacquer to the glue and bringing to solve the disadvantages of the prior art.

Content of the invention

In order to solve the above technical problem, the present invention provides a water-based lacquer adhesive tape and its sizing agent preparation method, has good lacquer, wetting, anti-uv performance and applicability.

The invention solves the technical problem by adopting the technical scheme is as follows:

A water-based lacquer adhesive tape, comprising a substrate layer and adhesive layer, the adhesive by the aqueous evenly coated onto the substrate layer is formed after the drying, the aqueous sizing agent comprised of the following components parts by weight:

Further, the acrylic acid can be replaced as the methyl acrylic acid.

Further, the vinyl acetate can be replaced solidification vinyl carbonate.

Further, the reactive emulsifier is an alkyl benzene sulfonic acid allyl amine salt, alkyl ether sulfuric acid allyl amine salt, nonylphenyl ethoxy phosphoric acid allyl amine salt, polyoxyalkylene -1 - alkyl ether sodium acid ester salt in one or several.

Further, the water-based lacquer adhesive tape, by uniformly coating the aqueous sizing agent on said substrate, in the 90 °C drying under the following conditions 3 - 6 minutes after can be made.

A aqueous sizing agent preparation method, comprises the following steps:

Step 1: according to claim 1 said component by weight of the weighing of the isooctyl acrylate, butyl acrylate, acrylic acid, ethyl acrylate, vinyl acetate, reactive emulsifier, deionized water, ammonium persulfate and sodium bicarbonate;

Step 2: pre-emulsion preparation: added in step 1 in the 97 - 100% weight percentage of the reactive emulsifying agent and sodium bicarbonate, 30 - 50% weight percentage of deionized water are mixed and stirred uniformly, and add all of the isooctyl acrylate, butyl acrylate, acrylic acid, ethyl acrylate and vinyl acetate, stir, made ;

Step 3: in the reaction kettle to accede to the remaining deionized water, reactive emulsifier and sodium bicarbonate; up to 75 - 85 °C, then adding 1 - 5% weight percent of step 2 the , and step 1 in 30 - 70% weight percentage of ammonium persulfate;

Step 4: thermal insulation 10 minutes, starting to drop the remaining and ammonium persulfate, 2 - 5 hours to drop end; after finishing dripping, thermal insulation 10 - 60 minutes, then after the elimination of, and lowering the temperature to 45 °C following, and in discharging, can make the aqueous sizing agent.

The invention has the advantages:

The invention provides a water-based lacquer adhesive tape and its sizing agent preparation method, the use of the emulsifier take part in the polymerization reaction, become a part of the high-molecular polymer, can reduce the sensitivity of the film to water; more use flexible film forming adhesive better long-chain soft monomer, such as ethyl acrylate, butyl acrylate, isooctyl acrylate and the like; the use of the soft monomer with a functional group, such as acrylic, acrylic acid ester, methacrylic acid monomer such, to paper, through the cross-linking action to prevent the penetration of lacquer; through the above-mentioned technical means made of aqueous sizing agent, can effectively improve the resistance of the lacquer-resistant lacquer adhesive tape, wetting and anti-uv performance, the applicability of the reinforced tape, safety and environmental protection at the same time, the operation is simple, and the price is low.

Mode of execution

In order to more fully understand the technical content of the present invention, the following specific embodiment through technological scheme of this invention for further introduction and description.

Embodiment 1

According to the parts by weight of acrylic acid isooctyl weighing 400 parts, acrylic acid 2 parts, hea 1 parts, vinyl acetate 10 parts, reactive emulsifier 3 parts, deionized water 300 parts, ammonium persulfate 1 parts and sodium bicarbonate 0.1 parts;

Preparation of : added in 3 portions of the reactive emulsifier, 0.1 parts of sodium bicarbonate, 100 parts of deionized water are mixed and stirred uniformly, and add all of the acrylic acid ester, acrylic acid, ethyl acrylate and vinyl acetate, stir, made ;

In the reaction kettle to accede to the remaining 200 parts deionized water, raising the temperature to 80 °C, then adding 1% weight percentage of the above-mentioned pre-emulsion, and 0.5 parts of ammonium persulfate;

Thermal insulation 10 minutes, starting to drop the remaining and ammonium persulfate, 3 hours drop end; after finishing dripping, thermal insulation 30 min, then after the elimination of, and lowering the temperature to 45 °C following, and in discharging, can make the aqueous sizing agent;

The prepared aqueous sizing agent is coated on the processing of the substrate, in the 90 °C drying under the following conditions 5 min after the aqueous-resistant lacquer can be prepared by the adhesive tape.

Embodiment 2

According to the parts by weight of butyl acrylate weighed 400 parts, acrylic acid 2 parts, hea 1 parts, vinyl acetate 10 parts, reactive emulsifier 3 parts, deionized water 300 parts, ammonium persulfate 1 parts and sodium bicarbonate 0.1 parts;

Preparation of : added in 3 portions of the reactive emulsifier, 0.1 parts of sodium bicarbonate, 100 parts of deionized water are mixed and stirred uniformly, and add all of the butyl acrylate, acrylic acid, ethyl acrylate and vinyl acetate, stir, made ;

In the reaction kettle to accede to the remaining 200 parts deionized water, raising the temperature to 80 °C, then adding 1% weight percentage of the above-mentioned pre-emulsion, and 0.5 parts of ammonium persulfate;

Thermal insulation 10 minutes, starting to drop the remaining and ammonium persulfate, 3 hours drop end; after finishing dripping, thermal insulation 30 min, then after the elimination of, and lowering the temperature to 45 °C following, and in discharging, can make the aqueous sizing agent;

The prepared aqueous sizing agent is coated on the processing of the substrate, in the 90 °C drying under the following conditions 5 min after the aqueous-resistant lacquer can be prepared by the adhesive tape.

Embodiment 3

According to the parts by weight of acrylic acid isooctyl weighing 400 parts, butyl acrylate 200 parts, acrylic acid 25 parts, hea 5 parts, vinyl acetate 40 parts, reactive emulsifier 6 parts, deionized water 400 parts, ammonium persulfate 4 parts and sodium bicarbonate 0.5 parts;

Preparation of : added in 6 portions of the reactive emulsifier, 0.5 parts of sodium bicarbonate, 150 parts of deionized water are mixed and stirred uniformly, and add all of the isooctyl acrylate, butyl acrylate, acrylic acid, ethyl acrylate and vinyl acetate, stir, made ;

In the reaction kettle adding the rest of the 250 parts of deionized water, raising the temperature to 80 °C, then adding 3% weight percent of the above-mentioned pre-emulsion, and 2 parts of ammonium persulfate;

Thermal insulation 10 minutes, starting to drop the remaining and ammonium persulfate, 3 hours drop end; after finishing dripping, thermal insulation 30 min, then after the elimination of, and lowering the temperature to 45 °C following, and in discharging, can make the aqueous sizing agent;

The prepared aqueous sizing agent is coated on the processing of the substrate, in the 90 °C drying under the following conditions 5 min after the aqueous-resistant lacquer can be prepared by the adhesive tape.

Embodiment 4

According to the parts by weight of acrylic acid isooctyl weighing 400 parts, butyl acrylate 400 parts, acrylic acid 50 parts, hea 10 parts, vinyl acetate 75 parts, reactive emulsifier 10 parts, deionized water 500 parts, ammonium persulfate 6 parts and sodium bicarbonate 1 parts;

Preparation of : added in 10 portions of the reactive emulsifier, 1 parts of sodium bicarbonate, 200 parts of deionized water are mixed and stirred uniformly, and add all of the isooctyl acrylate, butyl acrylate, acrylic acid, ethyl acrylate and vinyl acetate, stir, made ;

In the reaction kettle to accede to the remaining 300 parts of deionized water, raising the temperature to 80 °C, then add 5% weight percentage of the above-mentioned pre-emulsion, and 3 parts of ammonium persulfate;

Thermal insulation 10 minutes, starting to drop the remaining and ammonium persulfate, 3 hours drop end; after finishing dripping, thermal insulation 30 min, then after the elimination of, and lowering the temperature to 45 °C following, and in discharging, can make the aqueous sizing agent;

The prepared aqueous sizing agent is coated on the processing of the substrate, in the 90 °C drying under the following conditions 5 min after the aqueous-resistant lacquer can be prepared by the adhesive tape.

Experiment on proportional 1

According to QB/T 2423 - 1998 test method, the embodiment 1 - 4 of the prepared water-based lacquer tape performance test.

180° peeling strength test

For wiping material stained with cleaning agent wiping test steel plate, then clean and wipe of absorbent gauze, so repeated cleaning three or more times, until the plate by the working surface of the until the visual inspection of the cleaning.

Then separately first the ripping of the embodiment 1 - 4 of the prepared adhesive tape on the outside of the 3 - 5 layers of adhesive tape, then respectively taking the width 25 mm, length 200 mm above the sample adhesive tape (adhesive tape adhesive can not contact the hands or other material). And the sample adhesive tape and cleaning of the test steel plate after bonding. The test steel plate placed under the other end of a length of about 200 mm, width 40 mm Dacron membrane or other material, then the weight is 2 kg of the weight of the press roller in the lower to about 300 mm/min at the speed of the sample adhesive tape rolling back and forth on three times (sample adhesive tape with the test steel plate the winding does not allow the bubble that exists). The temperature is 25 °C, the relative humidity is 65% of the test environment under parking 30 min after the test.

The free end of the sample adhesive tape folded 180°, and peel back the adhesive from the test plate on 25 mm. The sample adhesive tape free end and the test on the steel plate are respectively clamped in, on the lower holder. The knife edge with the pull test mechanical line consistent. The tension testing machine in order to 300 mm/min the lowering speed of the continuous strip, according to the automatic recorder to draw the stripping of the curve to calculate the sample adhesive tape 180° peel strength, test if the results of the following table:

Experiment on proportional 2

The embodiment respectively from 1 - 4 prepared on the tape of the random taking a piece of 25 mm × 200 mm of the adhesive tape, is attached to the alcohol cleaned on the smooth steel plate, for 2.5 kg roller rolling 3 times, then brush the surface of the adhesive after the lacquer, is at the temperature of 25 °C under the environment of 48 hours later, and steel plate into 180° angle pulled apart after observation of the adhesive tape covered by steel plate place with no degumming residual glue situation, test if the results of the following table:

Of course, the above embodiment is only the invention in the preferred embodiment, any other does not exceed the scope of protection of the invention the embodiment of the present invention are to be included in the scope of protection.

Although for the purpose of example, has been disclosed a preferred embodiment of the present invention, but the ordinary technical personnel in the field will be aware of, in not break away from the by the attached claims disclosed the scope of the invention and the spirit of the circumstances, various improvements, it is possible to increase and to replace.