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A kind of adhesive layer for adhesive tape and its preparation method and application

An adhesive layer and tape technology, applied in the direction of adhesives, film/sheet adhesives, rosin adhesives, etc., can solve the problems of loose and falling off of bonded objects, residual glue pollution, damage to parts, etc.

Active Publication Date: 2021-05-07
安徽屹珹新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the adhesive tape in the prior art is used for bonding, it can only be forcibly peeled off from the front, which can easily cause damage to parts and may have residual glue to pollute the surface; and if the bonding strength of the tape is reduced, it may cause bonding Objects loosen and fall off during use

Method used

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  • A kind of adhesive layer for adhesive tape and its preparation method and application

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Experimental program
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Effect test

preparation example Construction

[0046] The present invention also provides a method for preparing the adhesive layer described in the above technical solution, comprising the following steps:

[0047] a) mixing a thermoplastic elastomer and a reinforcing agent in a solvent to obtain a mixed solution; the thermoplastic elastomer is selected from the group consisting of styrene block copolymer, polyolefin block copolymer, acrylic block copolymer, polyisobutylene, thermoplastic polyurethane One or more of butyl rubber and EPDM rubber; the reinforcing agent is selected from polystyrene, polyphenylene ether, polyethylene terephthalate and polybutylene terephthalate one or more of esters;

[0048] b) sequentially adding tackifying resin, softener, antioxidant and filler to the mixed solution obtained in step a) for mixing to obtain an adhesive dispersion;

[0049] c) coating the adhesive dispersion obtained in step b) on a release film and drying to obtain an adhesive layer.

[0050] In the present invention, fi...

Embodiment 1

[0068] The substrate-free tape provided in Example 1 is composed of an adhesive layer with a thickness of 150 μm and a heavy release film and a light release film attached to the upper and lower sides of the adhesive layer respectively; The release force ratio of the heavy release film is 1:3.

[0069] The adhesive layer is prepared from raw materials comprising the following components: 40 parts by weight of styrene-butadiene-styrene block copolymer (SBS), 40 parts by weight of terpene resin, 15 parts by weight of polystyrene, 20 parts by weight of naphthenic oil, 0.5 parts by weight of phenolic antioxidant, and 2 parts by weight of titanium dioxide.

[0070] The preparation method comprises the following steps:

[0071] (1) The polystyrene of 15 parts by weight is dissolved in the toluene of 120 parts by weight, then the styrene-butadiene-styrene block copolymer (SBS) of 40 parts by weight is added and dissolved to obtain a solid content of 30%. mixed solution;

[0072] (...

Embodiment 2

[0084] The substrate-free adhesive tape provided in Example 2 is composed of an adhesive layer with a thickness of 200 μm and a heavy release film and a light release film respectively attached to the upper and lower sides of the adhesive layer; The release force ratio of the heavy release film is 1:2.5.

[0085] The adhesive layer is prepared from raw materials comprising the following components: 50 parts by weight of styrene-isoprene-styrene block copolymer (SIS), 45 parts by weight of rosin resin, 20 parts by weight of polyphenylene ether, 20 parts by weight of aromatic oil, 1 part by weight of p-phenylenediamine antioxidant, and 2 parts by weight of carbon black.

[0086] The preparation method comprises the following steps:

[0087] (1) The polyphenylene ether of 20 weight parts is dissolved in the xylene of 140 weight parts, then adds the styrene-isoprene-styrene block copolymer (SIS) of 50 weight parts and dissolves, and obtains that solid content is 30% mixed soluti...

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Abstract

The invention provides an adhesive layer for an adhesive tape, which is prepared from raw materials comprising the following components: 40 to 60 parts by weight of a thermoplastic elastomer; 40 to 60 parts by weight of a tackifying resin; 10 parts by weight of a reinforcing agent Parts by weight to 20 parts by weight; softener 10 parts by weight to 25 parts by weight; antioxidant 0.2 parts by weight to 5 parts by weight; filler 0.1 parts by weight to 5 parts by weight; the thermoplastic elastomer is selected from styrene block copolymers , polyolefin block copolymer, acrylic block copolymer, polyisobutylene, thermoplastic polyurethane, butyl rubber and EPDM rubber; the reinforcing agent is selected from polystyrene, polyphenylene ether , one or more of polyethylene terephthalate and polybutylene terephthalate. The adhesive layer provided by the invention uses specific content components to achieve good compatibility. On the basis of ensuring that the adhesive layer has high elastic and plastic properties, its cohesion is improved, so that it has high peeling force, high temperature resistance and no fracture when stretched. And no residual glue removal characteristics.

Description

technical field [0001] The invention relates to the technical field of adhesive tape production, and more specifically, relates to an adhesive layer used for an adhesive tape and a preparation method and application thereof. Background technique [0002] Adhesive tape is a pressure-sensitive adhesive tape that can bond objects. It is widely used in daily life and industrial fields, and plays the role of fixing, bonding, and protecting. In order to ensure the stability and durability of the bonding, most of the tapes on the market are substrate tapes with high bonding strength. The tape is usually based on paper, cloth, plastic film, metal foil, etc., pressed The sensitive adhesive is evenly coated on the above-mentioned substrate to make a roll-shaped adhesive tape, which is composed of three parts: the substrate, the adhesive and the release film (paper). [0003] At present, in many application scenarios, such as the fixing of components such as batteries and display scre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J153/02C09J145/00C09J193/04C09J157/02C09J11/08C09J11/04
CPCC08K2003/2241C08L2201/08C08L2205/03C08L2205/035C08L2207/04C09J7/00C09J11/04C09J11/08C09J145/00C09J153/02C09J153/025C09J157/02C08L45/00C08L25/06C08K3/22C08L53/02C08L93/04C08L71/12C08K3/04C08L57/02C08L53/025C08L67/02
Inventor 滕超王国伟李言
Owner 安徽屹珹新材料科技有限公司
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