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Solvent type acrylic pressure-sensitive adhesive and preparation method thereof

An acrylic pressure-sensitive adhesive, solvent-based technology, applied in the direction of adhesive types, ester copolymer adhesives, etc., can solve the problems affecting the appearance of mobile phone screens, pollution, etc., to achieve mass production, high product quality, good quality The effect of adhesion

Inactive Publication Date: 2018-10-16
西安航天三沃化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the existing surface protection tape is used on the screen panel of a touch screen mobile phone, a large number of "ghost images" will be generated, and the "ghost image" is a substance remaining on the screen panel of the mobile phone, which cannot be seen with the naked eye and requires a bright flashlight It can be seen that it has polluted the screen panel of the mobile phone when it is not assembled on the mobile phone, which seriously affects the appearance of the mobile phone screen, and the manufacturer needs to clean it again

Method used

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  • Solvent type acrylic pressure-sensitive adhesive and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1) Each raw material is mixed with 1.5% acrylic acid, 1% hydroxyethyl acrylate, 1% hydroxypropyl acrylate, 1% hydroxybutyl acrylate, 20% isooctyl acrylate, 1.5% dimethacrylic acid The weight percent of ethylene glycol ester, 2% allyl methacrylate, 35% butyl acrylate, 35% solvent and 2% initiator is weighed;

[0028] 2) After that, the raw materials except the initiator are mixed and stirred, and continuously mixed and stirred at 20 to 30 degrees for 10 minutes, so that all components are mixed and stirred evenly;

[0029] 3) Divide the obtained mixed and stirred raw materials into two parts, and add an initiator to the first part to cause a polymerization reaction, and the reaction temperature is controlled between 70 and 80 degrees, and after 30 minutes of reaction, add Add another part of mixing and stirring raw materials, and control the reaction temperature at this time between 65 and 75 degrees, and control the reaction time at 3 hours. After the reaction is comple...

Embodiment 2

[0033] 1) Each raw material is mixed with 1.5% acrylic acid, 1% hydroxyethyl acrylate, 1% hydroxypropyl acrylate, 1% hydroxybutyl acrylate, 25% isooctyl acrylate, 1.5% dimethacrylic acid The weight percent of ethylene glycol ester, 2% allyl methacrylate, 30% butyl acrylate, 35% solvent and 2% initiator is weighed;

[0034] 2) After that, the raw materials except the initiator are mixed and stirred, and continuously mixed and stirred at 20 to 30 degrees for 10 minutes, so that all components are mixed and stirred evenly;

[0035] 3) Divide the obtained mixed and stirred raw materials into two parts, and add an initiator to the first part to cause a polymerization reaction, and the reaction temperature is controlled between 70 and 80 degrees, and after 30 minutes of reaction, add Add another part of mixing and stirring raw materials, and control the reaction temperature at this time between 65 and 75 degrees, and control the reaction time at 3 hours. After the reaction is comple...

Embodiment 3

[0039] 1) Each raw material is mixed with 1.5% acrylic acid, 1% hydroxyethyl acrylate, 1% hydroxypropyl acrylate, 1% hydroxybutyl acrylate, 30% isooctyl acrylate, 1.5% dimethacrylic acid The weight percent of ethylene glycol ester, 2% allyl methacrylate, 25% butyl acrylate, 35% solvent and 2% initiator is weighed;

[0040] 2) After that, the raw materials except the initiator are mixed and stirred, and continuously mixed and stirred at 20 to 30 degrees for 10 minutes, so that all components are mixed and stirred evenly;

[0041]3) Divide the obtained mixed and stirred raw materials into two parts, and add an initiator to the first part to cause a polymerization reaction, and the reaction temperature is controlled between 70 and 80 degrees, and after 30 minutes of reaction, add Add another part of mixing and stirring raw materials, and control the reaction temperature at this time between 65 and 75 degrees, and control the reaction time at 3 hours. After the reaction is complet...

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Abstract

The invention discloses a solvent type acrylic pressure-sensitive adhesive and a preparation method thereof. The preparation method comprises the following steps: 3) carrying out polymerization reaction: firstly, equally dividing mixed and stirred raw materials in step 2) into two parts; then leading the first part into a second stirring kettle; then adding an initiator which is weighed accordingto the ratio in step 2) and enabling the raw materials to be subjected to the polymerization reaction; meanwhile, controlling the reaction temperature of the second stirring kettle to be 70 to 80 DEGC; after reacting for 30min, adding the other part of the mixed and stirred raw materials into the second stirring kettle; meanwhile, controlling the reaction temperature of the second stirring kettleto be 65 to 75 DEG C and controlling the reaction time to be 3h, so as to prepare the solvent type acrylic pressure-sensitive adhesive; 4) carrying out cooling treatment: after standing for 1h, pouring out the solvent type acrylic pressure-sensitive adhesive in step 3); then putting the solvent type acrylic pressure-sensitive adhesive into a cooling box and carrying out cooling operation; controlling the cooling temperature to be 20 DEG C. The solvent type acrylic pressure-sensitive adhesive disclosed by the invention has a very good attachment force on a base material and high product quality.

Description

technical field [0001] The invention relates to the technical field of adhesives in the chemical industry, in particular to a solvent-type acrylic pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Surface protection tape is mainly a type of tape that protects the surface of materials. It can effectively prevent the surface of the protected product from being scratched, polluted and corroded during processing, transportation, storage and use. [0003] There are many types of surface protection tapes, which can be divided into polyethylene, polyvinyl chloride, polyester, polypropylene and paper base according to the base material. In addition, plastic films such as nylon, polycarbonate, polyimide and other polyolefins can also be used For the preparation of surface protection tapes. [0004] Surface protection tape is widely used due to its convenience and good protection effect. For example, in hardware industry, photoelectric indus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C08F220/18C08F220/06C08F220/20C08F222/14C08F220/40C08F2/06
CPCC08F2/06C08F220/18C08F220/1804C08F220/1808C09J133/066C08F220/06C08F220/20C08F222/102C08F220/40
Inventor 马荔高建宾薛晓春王培郭茜晁金
Owner 西安航天三沃化学有限公司
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