Acrylate pressure-sensitive adhesive with high durable viscosity and high peeling strength and preparation method therefor
An acrylate and high-stripping technology, which is applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesive types, etc., can solve the problem of unsustainable adhesion, unfavorable environmental protection, and low 180 peel strength, etc. problem, to achieve the effect of short reaction cycle, simple process and meeting performance requirements
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[0023] A kind of preparation method of the acrylate pressure-sensitive adhesive of high stickiness and high peel strength, described preparation method is as follows:
[0024] Preparation of Component A
[0025] 2-4 parts of acrylic acid, 8-20 parts of butyl acrylate, 7-10 parts of methyl methacrylate, 15-30 parts of isooctyl acrylate, 6-10 parts of hydroxypropyl acrylate, and 1-3 parts of acrylamide Add it into a three-necked flask with a stirring device, then add 38 to 55 parts of ethyl acetate, 5 to 10 parts of absolute ethanol and 0.1 to 0.4 parts of benzoyl peroxide initiator into the three-necked flask, and blow in nitrogen. Start stirring; when heated to 80°C, keep warm at 80-83°C for 2-4 hours; then dissolve 0.05-0.2 parts of benzoyl peroxide initiator in 3-5 parts of ethyl acetate and add dropwise to the reaction solution After the dropwise addition, continue to react for 1 to 3 hours, and then lower the temperature to below 40°C;
[0026] Preparation of Component B...
Embodiment 1
[0033] Add 37.5g of ethyl acetate, 6g of absolute ethanol and 0.15g of benzoyl peroxide into a three-necked flask; component A is based on 3g of acrylic acid, 15g of butyl acrylate, 8g of methyl methacrylate, 16g of isooctyl acrylate, Add 7 hydroxypropyl acrylate and 3 g of acrylamide into a three-necked flask, blow in nitrogen, and start stirring; heat to 80°C, keep the temperature not exceeding 83°C, keep the reaction at 80-83°C for 3 hours, then cool down to 40°C ;
[0034]Dissolve 0.05g of benzoyl peroxide in 5g of ethyl acetate, add it dropwise to the reaction solution, and continue the reaction for 1 to 3 hours after the addition is complete;
[0035] Component B is dissolved in 7.5 g of ethyl acetate by dissolving 1.5 g of thickener sodium carboxymethyl cellulose, 0.3 g of curing agent aziridine, 0.3 g of auxiliary essence, and 0.5 g of lipophilic silica powder into a three-necked flask , heated and dissolved at 40°C for 2h;
[0036] Finally, the dissolved component B...
Embodiment 2
[0038] Add 37.5g of ethyl acetate, 6g of absolute ethanol and 0.15g of benzoyl peroxide into a three-necked flask; component A is based on 3g of acrylic acid, 15g of butyl acrylate, 8g of methyl methacrylate, 16g of isooctyl acrylate, Add 7 hydroxypropyl acrylate and 3 g of acrylamide into a three-necked flask, blow in nitrogen, and start stirring; heat to 80°C, keep the temperature not exceeding 83°C, keep the reaction at 80-83°C for 3 hours, then cool down to 40°C ;
[0039] Dissolve 0.05g of initiator in 5g of ethyl acetate, add dropwise to the reaction solution, and continue to react for 1 to 3 hours after the dropwise addition;
[0040] Component B was dissolved in 7.5 g of ethyl acetate by adding 1.5 g of thickener modified paraffin wax resin, 0.25 g of curing agent chromium acetylacetonate, 0.3 g of auxiliary essence, and 0.5 g of lipophilic silicon dioxide powder into a three-necked flask, and Melt and heat at 40°C for 3h;
[0041] Finally, the dissolved component B ...
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