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Double-faced adhesive tape and forming process thereof

A technology of double-sided tape and adhesive layer, applied in the direction of adhesive, epoxy resin, adhesive type, etc., can solve the problems of poor alkali resistance and insufficient adhesion, and achieve good performance stability and low molding cost. , to avoid the effect of phase separation

Active Publication Date: 2020-08-25
深圳市中鑫通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this double-sided adhesive has poor alkali resistance, and the weather resistance and mechanical properties need to be further improved.
In addition, the adhesive layer of the middle layer often has the defect of insufficient adhesive force.

Method used

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  • Double-faced adhesive tape and forming process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A double-sided adhesive tape is characterized in that it includes a film protection layer, an adhesive layer and a substrate layer from top to bottom, and the film protection layer is prepared by mixing the following components in parts by weight uniformly : 3,3-difluoro-[1,1-biphenyl]-4,4-dicarboxylic acid / pyrazolo[1,5-a][1,3,5]triazine-2,4-di Alcohol polycondensate 40 parts polycondensate, PBT resin 10 parts, PET resin 10 parts.

[0034] The 3,3-difluoro-[1,1-biphenyl]-4,4-dicarboxylic acid / pyrazolo[1,5-a][1,3,5]triazine-2,4- The preparation method of diol polycondensate comprises the steps of: combining 3,3-difluoro-[1,1-biphenyl]-4,4-dicarboxylic acid, pyrazolo[1,5-a][1, 3,5]

[0035] Add triazine-2,4-diol, catalyst, and tetrabutylammonium bromide into the polymerization reactor, at a pressure of 0.4MPa and a temperature of 260°C

[0036] The esterification reaction is carried out under the pressure, and the esterification reaction is completed when the theoretic...

Embodiment 2

[0043] A double-sided adhesive tape is characterized in that it includes a film protection layer, an adhesive layer and a substrate layer from top to bottom, and the film protection layer is prepared by mixing the following components in parts by weight uniformly : 3,3-difluoro-[1,1-biphenyl]-4,4-dicarboxylic acid / pyrazolo[1,5-a][1,3,5]triazine-2,4-di Alcohol polycondensate 45 parts, PBT resin 12 parts, PET resin 11 parts.

[0044] The 3,3-difluoro-[1,1-biphenyl]-4,4-dicarboxylic acid / pyrazolo[1,5-a][1,3,5]triazine-2,4- The preparation method of diol polycondensate comprises the steps of: combining 3,3-difluoro-[1,1-biphenyl]-4,4-dicarboxylic acid, pyrazolo[1,5-a][1, 3,5] Triazine-2,4-diol, catalyst, and tetrabutylammonium bromide are added to the polymerization reactor, and the esterification reaction is carried out at a pressure of 0.5MPa and a temperature of 265°C until the theoretical water output reaches 98%. The esterification reaction is completed at the above, and th...

Embodiment 3

[0050] A double-sided adhesive tape is characterized in that it includes a film protection layer, an adhesive layer and a substrate layer from top to bottom, and the film protection layer is prepared by mixing the following components in parts by weight uniformly : 3,3-difluoro-[1,1-biphenyl]-4,4-dicarboxylic acid / pyrazolo[1,5-a][1,3,5]triazine-2,4-di 50 parts of alcohol polycondensate polycondensate, 15 parts of PBT resin, 13 parts of PET resin.

[0051] The 3,3-difluoro-[1,1-biphenyl]-4,4-dicarboxylic acid / pyrazolo[1,5-a][1,3,5]triazine-2,4- The preparation method of diol polycondensate comprises the steps of: combining 3,3-difluoro-[1,1-biphenyl]-4,4-dicarboxylic acid, pyrazolo[1,5-a][1, 3,5] Triazine-2,4-diol, catalyst, and tetrabutylammonium bromide are added to the polymerization reactor, and the esterification reaction is carried out at a pressure of 0.55MPa and a temperature of 270°C until the theoretical water output reaches 98%. The esterification reaction is compl...

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Abstract

The invention discloses a double-faced adhesive tape that is characterized by sequentially comprising a film protection layer, an adhesive layer and a base material layer from top to bottom. The filmprotection layer is prepared by uniformly mixing the following components, by weight: 40 to 60 parts of 3, 3-difluoro-[1, 1-biphenyl]-4, 4-dicarboxylic acid / pyrazolo [1, 5-a] [1, 3, 5] triazine-2, 4-diol polycondensate, 10 to 20 parts of PBT resin and 10 to 15 parts of PET resin. Meanwhile, the invention further discloses a forming process of the double-faced adhesive tape. The double-faced adhesive tape disclosed by the invention is excellent in chemical resistance, good in weather resistance and high-temperature resistance, high in bonding strength and mechanical property and good in comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a double-sided adhesive tape and a molding process thereof. Background technique [0002] In recent years, double-sided adhesive tape has been widely used in electronics, computers, home appliances and other fields. Traditional double-sided adhesive tape is mainly made by simply superimposing the required materials according to needs. The upper and lower surfaces of the double-sided adhesive tape are respectively bonded with a release film and a protective film. , [0003] When in use, the protective film is first torn off, bonded to the part to be bonded, and then the release film is removed, and pasted to another part to be bonded; the two parts to be bonded are bonded together. Due to the strong viscosity of the double-sided adhesive, it is convenient to use and the construction process is cleaner and faster, the use of double-sided adhesive to replace the traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/30C09J133/14C09J175/04C09J163/00C08L67/02C08J5/18C08G63/86C08G63/82C08G63/78C08G63/685C08G63/682C08F220/32C08F230/08C08F230/06C08F218/10
CPCC08G63/6826C08G63/6856C08G63/78C08G63/826C08G63/866C08J5/18C08J2367/02C08J2467/02C09J143/04C09J2433/00C09J2463/00C09J2467/00C09J2475/00C09J7/255C09J7/30C08F220/325C08L33/04C08L75/04C08L63/00C08F230/085C08F230/065C08F218/10
Inventor 李建仁
Owner 深圳市中鑫通科技有限公司
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