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A kind of preparation method of special pressure-sensitive adhesive composition and adhesive tape

A technology of pressure-sensitive adhesives and compositions, applied in the direction of adhesives, adhesive types, pressure-sensitive films/sheets, etc., which can solve problems such as poor resistance to living agents, intolerance to living agents, and decreased bonding durability

Active Publication Date: 2021-04-20
新纶电子材料(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As above, there are high-bond strength tapes that can bond different surface energy materials on the market, such as the VHB foam tape produced by 3M. This tape has high bond strength and good stress dispersion, but it is not resistant to living reagents. Problem; Another example is the high bond strength AB tape, which can also bond different surface energy materials very well, but also has poor resistance to living reagents, and the tape stress is easy to concentrate, resulting in a decrease in bond durability.

Method used

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  • A kind of preparation method of special pressure-sensitive adhesive composition and adhesive tape
  • A kind of preparation method of special pressure-sensitive adhesive composition and adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Preparation of rubber modified adhesive: In a 1000ml four-necked reaction bottle, put in toluene 560 and start the stirring device at a speed of 150rpm, and put in nitrile rubber slices in turn while stirring 100g, heat up to about 45°C, introduce nitrogen at the same time, wait for 3 hours to be stirred until it is completely dissolved, put in 8g of lauryl acrylate, 3g of hydroxyethyl acrylate, and then heat up to 80°C, then add benzoyl peroxide solution ( Diluted to 10% concentration with toluene) 9g, maintain the reaction for 4h, then stop introducing nitrogen to end the reaction, then put in 1.5g of antioxidant 1010, 0.3g of light stabilizer UV-144, 50g of terpene phenolic resin TP2019, liquid butyronitrile Rubber LR820 5g, continue to stir until it dissolves, and discharge when the temperature drops below 45°C;

[0027]2) Coating process of special adhesive: coating the special adhesive on the release surface of PET release film, baking temperature is 110°C, ba...

Embodiment 2

[0029] 1) Preparation of rubber modified adhesive: In a 1000ml four-necked reaction bottle, put in toluene 560 and start the stirring device at a speed of 150rpm, and put in nitrile rubber slices in turn while stirring 100g, heat up to about 45°C, introduce nitrogen gas at the same time, wait for 3 hours to be stirred until it is completely dissolved, put in 15g of lauryl acrylate, 3g of hydroxyethyl acrylate, and then heat up to 80°C, then add benzoyl peroxide solution ( Diluted to 10% concentration with toluene) 9g, maintain the reaction for 4h, then stop introducing nitrogen to end the reaction, then put in 1.5g of antioxidant 1010, 0.3g of light stabilizer UV-144, 50g of terpene phenolic resin TP2019, liquid butyronitrile Rubber LR820 10g, continue to stir until it dissolves, and discharge when the temperature drops below 45°C;

[0030] 2) Coating process of special adhesive: coating the special adhesive on the release surface of PET release film, baking temperature is 11...

Embodiment 3

[0032] 1) Preparation of rubber modified adhesive: In a 1000ml four-necked reaction bottle, put in toluene 560 and start the stirring device at a speed of 150rpm, and put in nitrile rubber slices in turn while stirring 100g, heat up to about 45°C, introduce nitrogen gas at the same time, stir for 3 hours and after it is completely dissolved, put in 20g of lauryl acrylate and 3g of hydroxyethyl acrylate, then heat up to 80°C, add benzoyl peroxide solution ( Diluted to 10% concentration with toluene) 9g, maintain the reaction for 4h, then stop introducing nitrogen to end the reaction, then put in 1.5g of antioxidant 1010, 0.3g of light stabilizer UV-144, 50g of terpene phenolic resin TP2019, liquid butyronitrile Rubber LR820 15g, continue to stir until it dissolves, and discharge when the temperature drops below 45°C;

[0033] 2) Coating process of special adhesive: coating the special adhesive on the release surface of PET release film, baking temperature is 110°C, baking time...

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Abstract

The invention relates to a preparation method of a special pressure-sensitive adhesive composition and its adhesive tape, which adopts a polar rubber grafted long-chain alkyl ester system, and is composed of a polar tackifying resin and a polar liquid rubber, so that the whole system has polarity At the same time, some grafted side chains also have certain non-polarity, which is not only beneficial to the overall resistance to living agents of the adhesive, but also can provide bonding strength to materials with different surface energies; the above-mentioned polar rubber system, both It embodies the elongation and resilience of rubber, which is conducive to improving the cushioning performance of the adhesive. At the same time, while ensuring high bonding strength to non-polar parts such as plastic materials, it also improves the bonding strength to metal plates; the whole The tape is composed of a layer of ultra-high-viscosity rubber adhesive layer, with a thickness of only about 50 μm. Compared with traditional foam tapes, it is thinner and stickier, and can partially replace the existing traditional "sandwich" structure cushioning foam tapes .

Description

technical field [0001] The invention belongs to the technical field of adhesive materials, and relates to a preparation method of a special pressure-sensitive adhesive composition and an adhesive tape. Background technique [0002] Adhesive tape, as an adhesive material, has its special applications, such as fixed bonding of materials, surface protection, etc. Nowadays, with the upgrading of the electronics industry getting faster and faster, the requirements for electronic adhesive tapes are getting higher and higher. More and more electronic applications have proposed that the tape not only needs high bonding strength, but also can bond different surface energy materials. There are requirements for firmness, and further requirements such as resistance to living agents, such as laundry detergent, sweat, alcohol, food grease, etc. These properties are precisely what most ordinary adhesive tapes cannot meet. Some high-bond strength tapes have appeared on the market, such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/04C09J161/14C09J11/06C09J11/08C09J7/38C09J7/10C08F279/02
CPCC08F279/02C08L2205/03C09J11/06C09J11/08C09J151/04C09J2451/00C09J7/10C09J7/381C08L61/14C08L9/02C08K5/1345
Inventor 夏有贵王凯龙冲
Owner 新纶电子材料(常州)有限公司
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