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High-viscosity yellowing-resistant explosion-proof film adhesive, adhesive tape and preparation method of adhesive tape

A technology of anti-yellowing and explosion-proof film, which is applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesives, etc., and can solve the problem of low viscosity of acrylic glue, poor die-cutting performance, yellowing of colloid color, etc. problem, to achieve the effect of low initiator residue, improved peeling force and long holding time

Active Publication Date: 2019-12-03
CROWN TAICANG ADHESIVE PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-viscosity anti-yellowing anti-explosion film glue, to solve the defects of low viscosity of acrylic resin glue in the prior art, yellow color of the colloid after high temperature or sunlight exposure, and poor die-cutting performance

Method used

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  • High-viscosity yellowing-resistant explosion-proof film adhesive, adhesive tape and preparation method of adhesive tape
  • High-viscosity yellowing-resistant explosion-proof film adhesive, adhesive tape and preparation method of adhesive tape

Examples

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Effect test

Embodiment 1

[0022] This embodiment provides a high-viscosity anti-yellowing explosion-proof film glue, including the following components by weight: 100 parts of acrylic glue, 8 parts of hydrogenated rosin pentaerythritol ester 100D, 0.1 part of isocyanate curing agent, epoxy curing agent 0.05 parts of agent, 30 parts of ethyl acetate, 30 parts of toluene.

[0023] The acrylic glue is prepared by reacting the following components in parts by weight: 26 parts of isooctyl acrylate, 3 parts of acrylic acid, 0.5 part of hydroxyethyl acrylate, 5 parts of methyl acrylate, 65 parts of ethyl acetate, 0.5 parts of azodiisobutyronitrile;

[0024] The synthesis process of the above-mentioned acrylic glue is as follows: the temperature of the above-mentioned monomer and solvent (ethyl acetate) is raised to 65-70° C., and the initiator (azobisisobutyronitrile) is added dropwise for 10 hours to obtain a solid content of 35%. Acrylic glue with a molecular weight of 500,000 to 800,000.

Embodiment 2

[0026] This embodiment provides a high-viscosity anti-yellowing explosion-proof film glue, including the following components by weight: 100 parts of acrylic glue, 8 parts of hydrogenated rosin pentaerythritol ester 5100F, 0.5 parts of isocyanate curing agent, epoxy curing agent 0.1 parts of agent, 30 parts of ethyl acetate, 30 parts of toluene.

[0027] The acrylic glue is prepared by reacting the following components in parts by weight: 30 parts of isooctyl acrylate, 5 parts of acrylic acid, 1 part of hydroxyethyl acrylate, 10 parts of methyl acrylate, 53 parts of ethyl acetate, even 1 part of azodiisobutyronitrile;

[0028] The synthesis process of the above-mentioned acrylic glue is as follows: the above-mentioned monomer and solvent (ethyl acetate) are heated to 65-70°C, and the initiator (azobisisobutyronitrile) is added dropwise for 10 hours to obtain a solid content of 47%, a molecular weight 500,000 to 800,000 acrylic glue.

Embodiment 3

[0030] This embodiment provides a high-viscosity anti-yellowing explosion-proof film glue, including the following components by weight: 100 parts of acrylic glue, 8 parts of terpene phenol TP2019, 0.3 parts of isocyanate curing agent, epoxy curing agent 0.08 parts, 30 parts of ethyl acetate, 30 parts of toluene.

[0031] The acrylic glue is prepared by reacting the following components in parts by weight: 28 parts of isooctyl acrylate, 4 parts of acrylic acid, 0.8 parts of hydroxyethyl acrylate, 8 parts of methyl acrylate, 58.4 parts of ethyl acetate, 0.8 parts of azodiisobutyronitrile;

[0032] The synthesis process of the above-mentioned acrylic glue is as follows: the temperature of the above-mentioned monomer and solvent (ethyl acetate) is raised to 65-70° C., and the initiator (azobisisobutyronitrile) is added dropwise for 10 hours to obtain a solid content of 41.6%, Acrylic glue with a molecular weight of 500,000 to 800,000.

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Abstract

The invention discloses a high-viscosity yellowing-resistant explosion-proof film adhesive. The explosion-proof film adhesive comprises the following components in parts by weight: 100 parts of acrylic acid adhesive, 5-10 parts of tackifying resin, 0.15-0.6 part of a curing agent and 50-90 parts of a solvent, wherein the acrylic acid adhesive is prepared by reacting the following components in parts by weight: 26-30 parts of isooctyl acrylate, 3-5 parts of acrylic acid, 0.5-1 part of hydroxyethyl acrylate, 5-10 parts of methyl acrylate, 53-65 parts of ethyl acetate and 0.5-1 part of azobisisobutyronitrile; the solvent is one or more selected from ethyl acetate, toluene and butanone; and the tackifying resin is hydrogenated resin. The invention also provides a high-viscosity yellowing-resistant adhesive tape prepared from the adhesive. The high-viscosity yellowing-resistant explosion-proof film adhesive has colorless transparent appearance, and can still ensure sufficient peeling forceaccording to different coating thicknesses. Under the condition of high-temperature aging, the explosion-proof film adhesive is not yellowing in appearance, and peeling force is basically not attenuated.

Description

technical field [0001] The invention relates to the technical field of glue, in particular to a high-viscosity anti-yellowing explosion-proof film glue, an adhesive tape and a preparation method thereof. Background technique [0002] With the development of technology, the scope and usage of display screens are increasing; because the outer glass of the display screen is prone to scratches after long-term use, and the glass is easily broken by external forces, which poses hidden dangers to the safety of users, so it is necessary to An explosion-proof film used for screen protection, and the acrylic resin used for bonding is an important part of the explosion-proof film. Generally, to achieve high viscosity, some resin will be added to the acrylic resin, so that the appearance is not colorless and transparent, and the yellowing effect of high temperature resistance is poor. Therefore, be badly in need of a kind of high-viscosity anti-yellowing anti-explosion membrane glue. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J11/08C09J11/06C09J7/30C08F220/18C08F220/06C08F220/20C08F220/14
CPCC08F220/18C09J11/06C09J11/08C09J133/066C09J2433/00C09J2467/006C09J7/30C08L93/04C08K5/29
Inventor 王四化麦启波浦永斌
Owner CROWN TAICANG ADHESIVE PROD CO LTD
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