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Water-based organic silicon pressure-sensitive adhesive and preparation method thereof

A silicone pressure-sensitive adhesive, water-based technology, applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems of pressure-sensitive adhesive peeling and cracking, achieve the control and promotion of the emulsification process, and enhance the hydrophilic performance , Improve the effect of adhesion

Inactive Publication Date: 2020-04-10
湖北新四海化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pressure-sensitive adhesive currently used will increase with the frequency and time of exposure after a long period of use, resulting in the problem of peeling and cracking of the pressure-sensitive adhesive attached to the material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, a preparation method of water-based silicone pressure-sensitive adhesive, 20g of methyl vinyl MQ resin, wherein, the vinyl content of methyl vinyl MQ resin is 1.5%, MQ ratio is 0.5; Put 20g of gelatin and 30g of toluene into the reaction vessel, raise the temperature to 60°C, add 0.02g of potassium hydroxide alkali gel as a catalyst after the dissolution is complete, continue to heat up to 115°C for reflux reaction for 4h, remove toluene under reduced pressure, and obtain a solvent-free silicone press. Sensitive glue: Add 8g of polyether modified MQ resin, 3g of OP-10 emulsifier, and 2g of OP-7 emulsifier into the reaction vessel, raise the temperature to 80°C, stir for 10 minutes, slowly add 15g of deionized water dropwise, and continue to Stir for 10 minutes, add the above silicone pressure sensitive adhesive, stir at high speed for 30 minutes and mix evenly to obtain a translucent paste solid, slowly add 120g of deionized water dropwise, after adding wat...

Embodiment 2

[0024] Embodiment 2, a preparation method of water-based silicone pressure-sensitive adhesive, 20g of methyl vinyl MQ resin, wherein, the vinyl content of the methyl vinyl MQ resin is 1.5%, and the MQ ratio is 0.6; the hydroxyl-terminated 107 Put 20g of gelatin and 30g of toluene into the reaction vessel, raise the temperature to 60°C, add 0.02g of potassium hydroxide alkali gel as a catalyst after the dissolution is complete, continue to heat up to 115°C for reflux reaction for 4h, remove toluene under reduced pressure, and obtain a solvent-free silicone press. Sensitive glue: Add 8g of polyether modified MQ resin, 3g of OP-10 emulsifier, and 2g of OP-7 emulsifier into the reaction vessel, raise the temperature to 80°C, stir for 10 minutes, slowly add 15g of deionized water dropwise, and continue to Stir for 10 minutes, add the above silicone pressure sensitive adhesive, stir at high speed for 30 minutes and mix evenly to obtain a translucent paste solid, slowly add 120g of de...

Embodiment 3

[0025] Embodiment 3, a preparation method of a water-based silicone pressure-sensitive adhesive, 20 g of methyl vinyl MQ resin, wherein, the vinyl content of methyl vinyl MQ resin is 1.5%, and the MQ ratio is 0.8; hydroxyl-terminated 107 Put 20g of gelatin and 30g of toluene into the reaction vessel, raise the temperature to 60°C, add 0.02g of potassium hydroxide alkali gel as a catalyst after the dissolution is complete, continue to heat up to 115°C for reflux reaction for 4h, remove toluene under reduced pressure, and obtain a solvent-free silicone press. Sensitive glue: Add 8g of polyether modified MQ resin, 3g of OP-10 emulsifier, and 2g of OP-7 emulsifier into the reaction vessel, raise the temperature to 80°C, stir for 10 minutes, slowly add 15g of deionized water dropwise, and continue to Stir for 10 minutes, add the above silicone pressure sensitive adhesive, stir at high speed for 30 minutes and mix evenly to obtain a translucent paste solid, slowly add 120g of deioniz...

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PUM

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Abstract

The invention discloses a water-based organic silicon pressure-sensitive adhesive and a preparation method thereof. The water-based organic silicon pressure-sensitive adhesive comprises the followingraw materials by weight: 20-30 parts of methyl vinyl MQ resin; 15-40 parts of hydroxyl-terminated 107 silicone rubber; 10-30 parts of toluene; 0.005-0.2 part of a catalyst; 2-7 parts of an emulsifier;5-15 parts of polyether modified MQ resin; 0-3 parts of a wetting agent; 0-3 parts of a thickening agent; and 60-200 parts of deionized water. According to the water-based organic silicon pressure-sensitive adhesive, polyether modified MQ resin is introduced, the hydrophilic performance of the water-based organic silicon pressure-sensitive adhesive can be enhanced, the adhesive force of the organic silicon pressure-sensitive adhesive to a base material is improved and the control of the emulsification process is promoted so that the water-based organic silicon pressure-sensitive adhesive achieves the emulsion with small particle size and good stability and most of the performance of the original oily organic silicon pressure-sensitive adhesive can be retained.

Description

technical field [0001] The invention relates to the field of silicone pressure-sensitive adhesives, in particular to a water-based silicone pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesive is a kind of pressure-sensitive adhesive, which is mainly used to prepare pressure-sensitive tape. The peeling force of general pressure-sensitive adhesive is that the peeling force of the adhesive tape and the surface to be adhered is lower than that of the adhesive. The cohesive force is smaller than the sticking force of the adhesive, so that such a pressure-sensitive adhesive will not have degumming and other phenomena during use. However, the current pressure-sensitive adhesives used for a long time will increase with the frequency and time of exposure to the sun, resulting in the problem of peeling and cracking of the pressure-sensitive adhesive attached to the material. [0003] Compared with rubber-type and acr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/07C09J183/04C09J11/08C09J11/00
CPCC08L2205/025C08L2205/03C09J11/00C09J11/08C09J183/04C08L83/04C08L83/12
Inventor 姚虎龚家全邵玲杨帆杨开柱
Owner 湖北新四海化工股份有限公司