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Organosilicon pressure-sensitive adhesive suitable for electron beam crosslinking and preparation method thereof

A silicone pressure-sensitive adhesive, electron beam technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problem of high-energy cross-linking process and preparation of production workers that have a great impact on the health of production workers and high energy consumption No small molecule residues, high production efficiency, and simple production process are achieved

Pending Publication Date: 2022-02-15
赤壁凯利隆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of the above three methods is complicated, and requires the use of organotin heavy metals and toxic amine catalysts, as well as peroxide and platinum catalysts, and also requires a high-energy-consuming heating and cross-linking process
[0004] In addition, for the convenience of coating, traditional silicone pressure-sensitive adhesives have to add highly toxic organic solvents such as toluene or xylene, which has a great impact on the health of production workers
After coating, the solvent needs to be removed by drying process, which not only consumes a lot of energy, but also causes serious environmental pollution

Method used

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  • Organosilicon pressure-sensitive adhesive suitable for electron beam crosslinking and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An electron beam crosslinked silicone pressure-sensitive adhesive, made of the following raw materials in parts by weight: 1 part of 101 methyl silicone rubber (molecular weight 300000), 1 part of methyl vinyl MQ resin (vinyl content 0.5%), γ - 0.5 part of methacryloxypropyltrimethoxysilane, 0.5 part of tripropylene glycol diacrylate.

[0024] A preparation method of an electron beam crosslinked silicone pressure-sensitive adhesive is as follows:

[0025] Add 0.5 parts of γ-methacryloxypropyl trimethoxysilane and 0.5 parts of tripropylene glycol diacrylate into the mixing container, and add 1 part of 101 methyl silicone rubber (molecular weight 300000) and methyl 1 part of vinyl MQ resin (vinyl content: 0.5%) was stirred for 2 hours to obtain an electron beam crosslinkable silicone pressure-sensitive adhesive.

Embodiment 2

[0027] An electron beam crosslinked silicone pressure-sensitive adhesive, made of the following raw materials in parts by weight: 1 part of 101 methyl silicone rubber (molecular weight 600000), 15 parts of methyl vinyl MQ resin (vinyl content 4%), γ - 2 parts of methacryloxypropyltrimethoxysilane, 2 parts of isobornyl acrylate.

[0028] A preparation method of an electron beam crosslinked silicone pressure-sensitive adhesive is as follows:

[0029] Put 2 parts of γ-methacryloxypropyl trimethoxysilane and 2 parts of isobornyl acrylate into the mixing container, add 1 part of 101 methyl silicone rubber (molecular weight 600000) and methyl vinyl Based on 15 parts of MQ resin (vinyl content 4%), stirred for 2 hours and mixed evenly to obtain an electron beam crosslinkable silicone pressure sensitive adhesive.

Embodiment 3

[0031] An electron beam crosslinked silicone pressure-sensitive adhesive, made of the following raw materials in parts by weight: 1 part of 107-terminated hydroxyl silicone rubber (50000mPa.s), 1 part of methyl MQ resin (M / Q=0.6:1), 1 part of γ-methacryloxypropyltrimethoxysilane, 1 part of tetrahydrofuran acrylate.

[0032] A preparation method of an electron beam crosslinked silicone pressure-sensitive adhesive is as follows:

[0033] Add 1 part of γ-methacryloxypropyl trimethoxysilane and 1 part of tetrahydrofuran acrylate into the mixing container, add 1 part of 107-terminated hydroxyl silicone rubber (50000mPa.s) and methyl MQ 1 part of resin (M / Q=0.6:1), stirred for 2 hours to mix and evenly obtain an electron beam crosslinkable silicone pressure sensitive adhesive.

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Abstract

The invention provides an organosilicon pressure-sensitive adhesive suitable for electron beam crosslinking and a preparation method thereof, and belongs to the field of organosilicon pressure-sensitive adhesives. The organic silicon pressure-sensitive adhesive comprises the following components in parts by weight: 1 part of silicon rubber, 1-15 parts of MQ resin, 0.5-2 parts of a silane coupling agent and 0.5-2 parts of a reactive diluent. The invention also provides a preparation method of the organic silicon pressure-sensitive adhesive, which comprises the following steps: weighing the raw materials according to the weight ratio, adding the silicon rubber and the MQ resin into the silane coupling agent and the reactive diluent, and uniformly stirring and mixing all the components to obtain the organic silicon pressure-sensitive adhesive capable of being cross-linked by electron beams. The organic silicon pressure-sensitive adhesive is simple in production process, free of solvent, low in curing temperature, short in curing time and low in energy consumption; besides, the crosslinking density and cohesion of the pressure-sensitive adhesive can be remarkably improved by electron beam crosslinking, so that the organic silicon pressure-sensitive adhesive has excellent adhesion, temperature resistance and medium resistance.

Description

technical field [0001] The invention belongs to the technical field of preparation of silicone pressure-sensitive adhesives, and relates to a silicone pressure-sensitive adhesive suitable for electron beam crosslinking and a preparation method thereof. Background technique [0002] Silicone pressure-sensitive adhesives are generally composed of silicone rubber, MQ resin, solvents, catalysts, and crosslinking agents. They have excellent electrical insulation, chemical resistance, moisture resistance, weather resistance, and heat resistance, and are non-irritating to the skin. And because of the low surface tension of polysiloxane, silicone can bond many difficult-to-bond materials, such as polyolefin, polytetrafluoroethylene, polyimide and other materials, so it is widely used in industry, electronics, national defense, etc. and medical industries. [0003] In order to improve the cohesion and adhesive properties of silicone pressure-sensitive adhesives, complex catalysis an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04C09J183/07C09J11/06
CPCC09J183/04C09J11/06C08L2201/08C08L83/04C08K5/5425
Inventor 沈树人潘瑞琪高洁韩小兵胡国文朱晓明陈涛胡鹏姬柳迪
Owner 赤壁凯利隆科技有限公司