Adhesive material for adhesive tapes and preparation method thereof

A technology of adhesive materials and tapes, applied in the direction of adhesives, adhesive types, ester copolymer adhesives, etc., can solve the problems that are difficult to meet the performance requirements of metal film switches, computer keyboards, low peel strength of ordinary pressure-sensitive tapes, and adhesive tapes. Reduce the cohesion of the layer and other problems, and achieve the effects of avoiding aging yellowing, excellent light transmission, and reducing reflection

Active Publication Date: 2014-04-16
SICHUAN DONGFANG INSULATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the technological innovation and the improvement of product performance requirements, the traditional adhesive materials and bonding methods can no longer meet the needs of the market. The research and development of various new adhesive materials are in the ascendant, bringing huge development opportunities for adhesive materials.
[0003] Existing acrylate adhesive materials for tapes: one is to add low-molecular-weight reactive acrylate monomers or oligomers into the acrylate prepolymer resin as the main component, and carry out physical stirring and mixing. The adhesive tape prepared by this method Although the adhesion properties before and after ultraviolet l

Method used

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  • Adhesive material for adhesive tapes and preparation method thereof
  • Adhesive material for adhesive tapes and preparation method thereof
  • Adhesive material for adhesive tapes and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] At room temperature, 35kg butyl acrylate, 15kg isooctyl acrylate, 25kg ethyl methacrylate, 20kg methoxyethyl acrylate, 10kg glycidyl methacrylate, 120kg solvent (ethyl acetate: methyl ethyl ketone=1:1) , And 0.8kg of benzoyl peroxide were added to the reactor equipped with a reflux device, stirred at 200rpm, and mixed uniformly; gradually heated to 75℃ under nitrogen protection, reacted for 4h, stopped heating, and then added 38.7 Kg of solvent (ethyl acetate: methyl ethyl ketone=1:1) is mixed uniformly, cooled to room temperature and discharged, and acrylic prepolymerized resin (1) with a solid content of 40% is prepared for use.

Embodiment 2

[0035] At room temperature 35kg butyl acrylate, 16kg isooctyl acrylate, 28kg ethyl methacrylate, 30kg methoxyethyl acrylate, 15kg glycidyl methacrylate, 120kg solvent (ethyl acetate: methyl ethyl ketone=1:1) , And 1.0 kg of benzoyl peroxide were added to the reaction kettle with a reflux device, stirred at 200 rpm, and mixed uniformly; under the protection of nitrogen, the temperature was gradually increased to 70°C, reacted for 4 hours, the heating was stopped, and then 67.5 Kg of solvent (ethyl acetate: methyl ethyl ketone=1:1) is mixed uniformly, cooled to room temperature and discharged, and acrylic prepolymer resin (2) with a solid content of 40% is prepared for use.

Embodiment 3

[0037] Combine 35kg butyl acrylate, 18kg isooctyl acrylate, 35kg ethyl methacrylate, 25kg methoxyethyl acrylate, 10kg glycidyl methacrylate, 120kg solvent (ethyl acetate: methyl ethyl ketone=1:1) at room temperature , And 1.0kg of azobisbutyronitrile were added to the reactor with reflux device, stirred at 200rpm, and mixed uniformly; gradually heated to 75℃ under nitrogen protection, reacted for 4h, stopped heating, and then added 66kg The solvents (ethyl acetate: methyl ethyl ketone=1:1) are mixed uniformly, cooled to room temperature and discharged, and the acrylic prepolymer resin (3) with a solid content of 40% is prepared for use.

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Abstract

The invention discloses an adhesive material for adhesive tapes. The invention is characterized in that the adhesive material is prepared by mixing 1000 parts by mass of acrylate prepolymer resin with the solid content of 40%, 3-10 parts by mass of curing agent and 200-500 parts by mass of diluting solvent. The preparation method of the acrylate prepolymer resin comprises the following steps: adding 350 parts of butyl acrylate, 150-200 parts of 2-ethylhexyl acrylate, 250-350 parts of ethyl methacrylate, 200-300 parts of functional monomer, 100-150 parts of glycidyl methacrylate, 1200 parts of solvent and 8-20 parts of initiator into a reaction kettle, and stirring and mixing; and in a nitrogen protective atmosphere, heating to 70-75 DEG C to react for 4-6 hours, and adding a solvent until the solid content reaches 40%. The adhesive material for adhesive tapes has the advantages of high heat resistance, high aging resistance, high working properties and favorable product performance, is convenient to use, and can be used for manufacturing various single-sided and double-sided pressure-sensitive adhesive tapes and optical clear adhesive tapes.

Description

Technical field [0001] The invention belongs to an adhesive and its preparation, and relates to an adhesive material for tape and a preparation method thereof. The adhesive material prepared by the present invention can be used in the production of various types of pressure-sensitive adhesive tapes with substrates and adhesive tapes without substrates, and is particularly suitable for labels, packaging adhesive tapes, equipment surface protective films, metal membrane switch films, Manufacture of various single and double-sided pressure-sensitive tapes (films), optical transparent tapes (films), surface protective films for computer keyboard films, large-scale high-end advertising surface films. Background technique [0002] With the rapid development of new technologies and markets in various industries such as aerospace, military equipment, communications, computers, industrial automation control equipment, household appliances, optical equipment, batteries, packaging, automobi...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J133/10C09J11/06C09J175/04C08F220/18C08F220/32C08F220/28
Inventor 王明刘洪乐许显成朱东海徐秀桃李明勇
Owner SICHUAN DONGFANG INSULATING MATERIAL
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