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A kind of anti-broken pressure-sensitive adhesive and preparation method thereof

A technology of pressure-sensitive adhesive and glue breaking, applied in the direction of adhesive type, ester copolymer adhesive, etc., can solve problems such as tensile fracture, and achieve the effect of reducing the amount of glue applied, stabilizing the product, and simplifying the operation

Active Publication Date: 2016-08-31
滁州云林数码影像耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of tensile fracture during the use of existing acrylic pressure-sensitive adhesives. The present invention introduces a polytetrahydrofuryl acrylate monomer into the raw materials for the preparation of acrylic pressure-sensitive adhesives, which increases its flexibility and reduces tension. Fracture during elongation

Method used

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  • A kind of anti-broken pressure-sensitive adhesive and preparation method thereof
  • A kind of anti-broken pressure-sensitive adhesive and preparation method thereof
  • A kind of anti-broken pressure-sensitive adhesive and preparation method thereof

Examples

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Embodiment 1

[0031] A preparation method of an anti-glue breaking pressure-sensitive adhesive, comprising the following steps:

[0032] 1) Preparation of functional monomer polytetrahydrofuryl acrylate;

[0033] The polytetrahydrofuran ether diol that number average molecular weight is 600 is dissolved in dichloromethane, and the concentration of polytetrahydrofuran ether diol in dichloromethane is 20wt%, is added dropwise in the reaction of acrylic acid chloride, polytetrahydrofuran ether diol and The molar ratio of acrylic acid chloride is 1:1, the reaction temperature is 10°C, and the reaction time is 2 hours. During the reaction, triethylamine is used to absorb the hydrogen chloride gas generated during the reaction. The molar ratio of triethylamine to acrylic acid chloride is 1:1 The reaction product generates polytetrahydrofuryl acrylate through extraction separation, vacuum distillation and vacuum drying, and the molecular structural formula of polytetrahydrofuryl acrylate is:

[0...

Embodiment 2

[0042] A preparation method of an anti-glue breaking pressure-sensitive adhesive, comprising the following steps:

[0043] 1) Preparation of functional monomer polytetrahydrofuryl acrylate;

[0044] Dissolve polytetrahydrofuran ether diol with a number average molecular weight of 2000 in dichloromethane, the concentration of polytetrahydrofuran ether diol in dichloromethane is 30wt%, and then dropwise add it to acrylic acid chloride to react, polytetrahydrofuran ether diol and acrylic acid The molar ratio of acid chloride is 1.3:1, the reaction temperature is 30°C, and the reaction time is 3h. During the reaction, triethylamine is used to absorb the hydrogen chloride gas generated during the reaction. The molar ratio of triethylamine to acrylic acid chloride is 1:1; The reaction product is separated by extraction, vacuum distillation and vacuum drying to generate polytetrahydrofuryl acrylate. The molecular structural formula of polytetrahydrofuryl acrylate is:

[0045]

[...

Embodiment 3

[0052] A preparation method of an anti-glue breaking pressure-sensitive adhesive, comprising the following steps:

[0053] 1) Preparation of functional monomer polytetrahydrofuryl acrylate;

[0054] The polytetrahydrofuran ether diol that number average molecular weight is 1000 is dissolved in dichloromethane, and the concentration of polytetrahydrofuran ether diol in dichloromethane is 25wt%, is then added dropwise in the reaction of acrylic acid chloride, polytetrahydrofuran ether diol and The molar ratio of acrylic acid chloride is 1.2:1, the reaction temperature is 20°C, and the reaction time is 2.5h. During the reaction, triethylamine is used to absorb the hydrogen chloride gas generated in the reaction process. The molar ratio of triethylamine to acrylic acid chloride is 1: 1; The reaction product is separated by extraction, vacuum distillation and vacuum drying to generate polytetrahydrofuryl acrylate, and the molecular structural formula of polytetrahydrofuryl acrylate...

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Abstract

The invention relates to an anti-fracture pressure sensitive adhesive and a preparation method of the pressure sensitive adhesive. The preparation method of the anti-fracture pressure sensitive adhesive comprises the following steps: synthesizing a polytetrahydrofurfuryl acrylate monomer which comprises a long carbon chain of an ether bond and is high in flexibility; and synthesizing the polytetrahydrofurfuryl acrylate monomer which serves as a functional monomer with a soft monomer and a hard monomer to prepare an acrylic acid pressure-sensitive adhesive. The tensile elongation of the prepared acrylic acid pressure-sensitive adhesive is obviously improved; the problem of tensile fracture in the using process of the acrylic acid pressure-sensitive adhesive can be solved; the acrylic acid pressure-sensitive adhesive can be widely used in various fields.

Description

technical field [0001] The invention relates to a pressure-sensitive adhesive and a preparation method thereof, in particular to an anti-breakage pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesive is a type of adhesive that is sensitive to pressure. It only needs to apply a certain pressure to wet the surface of the adherend and produce a type of adhesive. It is characterized by easy adhesion and easy removal. It can be peeled without damage, and the adhesive layer will not dry and solidify for a long time, so pressure-sensitive adhesive is also called self-adhesive, and its application range is very wide. [0003] With the increase of the use time of the car, pollutants in the air, and external forces, the paint surface of the car is easily damaged. The protection of the paint surface is more important. The current protective measures for the paint surface are mainly sealing glaze, but sealing the glaze i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C08F220/18C08F220/56C08F220/28
Inventor 葛允林张曙明耿有为
Owner 滁州云林数码影像耗材有限公司
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