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Heat-resistant foam double-side adhesive tape and preparation method thereof

A double-sided adhesive tape and foam technology, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of poor mechanical properties and thermal stability of foam tapes, affecting structural stability, and prone to deformation, etc., to achieve Uniform and fine cell structure, good dispersion and high thermal stability

Inactive Publication Date: 2019-04-05
ZHEJIANG OUREN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The foamed foam tape with a pore structure has a certain cushioning capacity, but the mechanical properties and thermal stability of the foam tapes currently on the market are relatively poor, and they are easily deformed during hot stamping and use, resulting in Dimensional changes that affect structural stability

Method used

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  • Heat-resistant foam double-side adhesive tape and preparation method thereof
  • Heat-resistant foam double-side adhesive tape and preparation method thereof
  • Heat-resistant foam double-side adhesive tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~4

[0032] Embodiments 1 to 4: A heat-resistant foam double-sided adhesive tape, comprising a foam layer and an adhesive layer arranged on the upper and lower surfaces of the foam layer,

[0033] The thickness of the foam layer is 100-1000 μm, and the adhesive layer is an acrylic adhesive layer.

[0034] The raw material of the foam layer comprises the following components in parts by weight:

[0035] Table 1

[0036]

[0037] The weight average molecular weight of the polytetramethylene ether glycol is 250~2500, the weight average molecular weight of the propylene oxide-ethylene oxide copolyether triol is 1000~3500, and the polyethylene adipate The weight-average molecular weight of the alcohol butanediol ester is 500-3000; the metal catalyst is an organic bismuth catalyst and / or an organic tin catalyst.

[0038] The preparation method of described foam layer comprises the following steps:

[0039] S1. Mix 15~20 parts of polytetramethylene ether glycol, 35~50 parts of propy...

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Abstract

The invention discloses a heat-resistant foam double-side adhesive tape which comprises a foam layer and adhesive layers arranged on the upper and lower surfaces of the foam layer. The foam layer is prepared from PTMEG, epoxypropane-ethylene oxide copolyether triol, polyethylene glycol, butanediol adipate, 1, 6-HDI, IPDI, tetrabutyl titanate, 1, 4-cyclohexanediol, metal catalyst, nano titanium nitride, dimethyl silicone oil, allyl triisopropyl silane, polyvinyl alcohol and water, wherein the metal catalyst is an organic bismuth catalyst and / or an organic tin catalyst. The heat-resistant foam double-side adhesive tape is good in mechanical performance, free of impact on structural stability caused by being less prone to deformation or breakage during use, high in resistance to high temperature, capable of meeting requirements of hot press process and wide in application prospect.

Description

technical field [0001] The invention relates to an adhesive tape, in particular to a heat-resistant foam double-sided adhesive tape. Background technique [0002] With the rapid development of the electronics and communication industries, various adhesive tapes are beginning to be suitable for such industries, especially small electronic devices such as mobile phone casings with multiple components integrated, the internal structure is relatively complex, and there are gaps between various components and the casing, so It is often necessary to use adhesive tape to fill the gap part to play the role of fixing and buffering. [0003] The foamed foam tape with a pore structure has a certain cushioning capacity, but the mechanical properties and thermal stability of the foam tapes currently on the market are relatively poor, and they are easily deformed during hot stamping and use, resulting in Dimensional changes that affect structural stability. Therefore, developing a heat-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/26C08J9/30C08G18/32C08G18/42C08G18/48C08G18/62C08G18/73C08G18/75C08L75/08C08L75/06C08L83/04C08K5/5425C08K3/28
CPCC08G18/3212C08G18/4063C08G18/4238C08G18/4812C08G18/485C08G18/4854C08G18/6212C08G18/6607C08G18/724C08G18/73C08G18/755C08J9/0042C08J9/0066C08J9/30C08J2375/06C08J2375/08C08J2483/04C08K3/28C08K5/5425C08K2201/011C09J7/26C09J2301/124C09J2301/312C09J2301/41C09J2301/414C09J2433/00C09J2475/006C09J2483/006
Inventor 夏厚君涂大记潘华杨晓明
Owner ZHEJIANG OUREN NEW MATERIALS CO LTD
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