Thin-coating high-viscosity water-based polyacrylate pressure-sensitive adhesive as well as preparation method and application thereof

A technology of polyacrylate and pressure-sensitive adhesives, which is applied in the direction of adhesives, polymer adhesive additives, film/sheet adhesives, etc., and can solve the problems that cannot meet the requirements of the development of light and thin electronic devices.

Active Publication Date: 2021-09-10
XIANGYANG SUNVALOR AEROSPACE FILMS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problem that the current pressure-sensitive adhesive technology cannot meet the requirements of the development of light and

Method used

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  • Thin-coating high-viscosity water-based polyacrylate pressure-sensitive adhesive as well as preparation method and application thereof
  • Thin-coating high-viscosity water-based polyacrylate pressure-sensitive adhesive as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] First weigh 45 parts of butyl acrylate and 5 parts of methyl acrylate in a container, heat at 60°C and slowly add 9.7 parts of hydrogenated rosin glyceride and 0.3 parts of α-pinene resin, and stir for 1 hour while adding, until completely dissolved; Add 0.5 parts of sodium lauryl sulfate, 1 part of propylene alcohol polyoxyethylene ether, 0.5 parts of potassium persulfate, 1.5 parts of methacrylic acid, and 2 parts of 2-hydroxyethyl acrylate to 20 parts in the reactor. Pre-emulsion A was obtained in deionized water; then 0.4 parts of potassium persulfate, 1 part of propylene alcohol polyoxyethylene ether, and 0.1 part of sodium bicarbonate were sequentially weighed and added to 15 parts of deionized water to obtain solution B; then the mass of pre-emulsion A was added Put 20% of the fraction in solution B, heat up to 70°C, and stir until the solution appears blue light, heat up to 84°C, then slowly add the remaining emulsion A dropwise within 2 hours, keep it warm for 2...

Embodiment 2

[0038]First weigh 40 parts of ethyl acrylate and 4 parts of ethyl methacrylate in a container, heat at 50°C and slowly add 9.5 parts of hydrogenated rosin pentaerythritol ester and 0.5 part of β-pinene resin, stir for 1 hour while adding, until completely Dissolve; Add 0.4 parts of sodium methacrylsulfonate, 0.8 parts of sodium propyl alkyl ether sulfonate, 0.5 parts of sodium persulfate, 1 part of acrylic acid, and 3 parts of β-hydroxypropyl acrylate into the reactor 20 parts of deionized water to obtain pre-emulsion A; then weigh 0.4 parts of sodium persulfate, 0.8 parts of sodium propyl alkyl ether sulfonate, and 0.1 parts of sodium bicarbonate and add them to 15 parts of deionized water to obtain solution B; then add Put 20% of the mass fraction of pre-emulsion A in solution B, heat up to 70°C, and stir until the solution appears blue light, heat up to 83°C, then slowly add the remaining emulsion A dropwise within 2 hours, keep it warm for 2 hours, and wait until the reacti...

Embodiment 3

[0040] First weigh 42 parts of lauryl methacrylate and 6 parts of vinyl acetate in a container, heat at 55°C and slowly add 9 parts of perhydrogenated rosin glyceride and 1 part of β-pinene resin, and stir while adding 1.5h until completely dissolved; add 0.5 part of sodium dodecylbenzenesulfonate, 0.9 part of sodium alcohol polyether sulfosuccinic acid monoester, 0.5 part of ammonium persulfate, 2 parts of maleic acid, Add 2 parts of methacrylic acid-β-hydroxypropyl ester to 20 parts of deionized water to obtain pre-emulsion A; Add 0.1 part of sodium to 15 parts of deionized water to obtain solution B; then add 20% of the mass fraction of pre-emulsion A to solution B, heat up to 70°C, and stir until the solution appears blue light, heat up to 83°C, and then within 2 hours Slowly add the remaining emulsion A dropwise and keep it warm for 2 hours. After the reaction is complete, cool down to 40°C, add ammonia water to adjust the pH to neutral, and cool down to room temperature ...

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Abstract

The invention provides a thin-coating high-viscosity water-based polyacrylate pressure-sensitive adhesive and a preparation method thereof. The thin-coating high-viscosity water-based polyacrylate pressure-sensitive adhesive is prepared from the following components: 40 to 55 parts of an acrylate monomer, 35 to 60 parts of deionized water, 0.5 to 4 parts of a functional monomer, 6 to 15 parts of mixed tackifying resin, 0.5 to 2 parts of a reactive emulsifier, 0.5 to 2 parts of an anionic emulsifier, 0.1 to 0.5 part of an initiator, 0.5 to 1.5 parts of a pH regulator and 0.01 to 0.2 part of a pH buffering agent. According to the pressure-sensitive adhesive disclosed by the invention, mixed tackifying resin of rosin resin and terpene resin is dissolved in the acrylate monomer, the double-type emulsifier is introduced, and the functional monomer is introduced by adopting a cross-linking modification technology to participate in polymerization, so that the prepared adhesive has the advantages of high viscosity, large tensile strength, strong cohesion, high stripping force and the like, is environment-friendly and low in cost, and is simple and controllable and is suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of high-viscosity water-based pressure-sensitive adhesives, in particular to a thin-coated high-viscosity water-based polyacrylate pressure-sensitive adhesive and a preparation method and application thereof. [0002] technical background [0003] With the rapid development of science and technology and economy, adhesives have been widely used in various fields such as life, production, and manufacturing, and have become an indispensable new chemical product. At the same time, the environmental pollution problem of the adhesive industry is becoming more and more serious. How to solve the environmental pollution problem of solvent-based adhesives has become a common problem faced by the industry. [0004] On the other hand, with the continuous development of adhesive technology, the use of adhesives has gradually expanded from the initial wood, construction, packaging and other industries to aerospace, new ene...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J11/08C09J7/38C08F220/18C08F220/14C08F220/06C08F220/20C08F218/08C08F222/02C08F220/58C08F283/06
CPCC09J133/066C09J141/00C09J133/24C09J133/068C09J11/08C09J7/385C08F220/1804C08F220/1802C08F283/065C08F220/1812C08L2205/035C08L2205/03C09J2467/006C09J2433/00C08L93/04C08L45/00C08F220/14C08F220/06C08F220/20C08F228/02C08F218/08C08F222/02C08F220/58C08F220/32
Inventor 张鹏刘为群武鹏黄明伟郑东升王芬李二威程晨王诗杰
Owner XIANGYANG SUNVALOR AEROSPACE FILMS CO LTD
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