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High-viscosity acrylic adhesive and preparation method thereof

A kind of acrylic and adhesive technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesive types, etc. High temperature resistance and reliability improvement effect

Inactive Publication Date: 2016-08-31
湖南省和祥润新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For electronic products or other products, once the adhesive tape is used, it is required that the adhesive tape can maintain its viscosity under the condition of large temperature difference, and the adhesive can be easily peeled off from the film. Under other performance conditions, there is a bottleneck in improving the roughness of the matte surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-viscosity acrylic adhesive, the raw materials in parts by weight include: 15 parts of methyl methacrylate, 4 parts of n-butyl acrylate, 4 parts of isocyanate, 0.1 part of acrylic acid, 0.1 part of rosin resin, 20 parts of ethyl acetate, toluene 5 parts, 0.03 parts of benzoyl peroxide, 4 parts of terpene resin, 1 part of azo compound, 1 part of coupling agent, 15 parts of dimethyldiethoxysilane, 2 parts of nano-scale silicon dioxide powder, 1.5 parts of nano-sized alumina powder, 0.2 parts of micron-sized silica powder, 0.2 parts of micron-sized alumina powder, and 40 parts of solvent.

[0024] The preparation method of described high viscosity acrylic adhesive, concrete steps are as follows:

[0025] (1) Weigh each raw material according to parts by weight;

[0026] (2) Add micron-sized silica powder, micron-sized alumina powder and coupling agent to the solvent for ultrasonic treatment to obtain a pre-dispersion;

[0027] (3) Add nano-scale silica powder, nano...

Embodiment 2

[0032] A high-viscosity acrylic adhesive, the raw materials according to parts by weight include: 18 parts of methyl methacrylate, 4.5 parts of n-butyl acrylate, 4.5 parts of isocyanate, 0.15 parts of acrylic acid, 0.15 parts of rosin resin, 25 parts of ethyl acetate, toluene 5.5 parts, 0.04 parts of benzoyl peroxide, 4.5 parts of terpene resin, 1.2 parts of azo compound, 1.1 parts of coupling agent, 18 parts of dimethyldiethoxysilane, 2.2 parts of nano-scale silica powder, 1.8 parts of nano-sized alumina powder, 0.25 parts of micron-sized silica powder, 0.25 parts of micron-sized alumina powder, and 42 parts of solvent.

[0033] The preparation method of described high viscosity acrylic adhesive, concrete steps are as follows:

[0034] (1) Weigh each raw material according to parts by weight;

[0035] (2) Add micron-sized silica powder, micron-sized alumina powder and coupling agent to the solvent for ultrasonic treatment to obtain a pre-dispersion;

[0036] (3) Add nano-sc...

Embodiment 3

[0041] High-viscosity acrylic adhesive, raw materials according to parts by weight include: 20 parts of methyl methacrylate, 5 parts of n-butyl acrylate, 5 parts of isocyanate, 0.2 parts of acrylic acid, 0.2 parts of rosin resin, 30 parts of ethyl acetate, 6 parts of toluene , 0.05 parts of benzoyl peroxide, 5 parts of terpene resin, 1.5 parts of azo compound, 1.2 parts of coupling agent, 20 parts of dimethyldiethoxysilane, 2.5 parts of nano-scale silica powder, nano-scale 2 parts of alumina powder, 0.3 parts of micron-sized silica powder, 0.35 parts of micron-sized alumina powder, and 45 parts of solvent.

[0042] The preparation method of described high viscosity acrylic adhesive, concrete steps are as follows:

[0043] (1) Weigh each raw material according to parts by weight;

[0044] (2) Add micron-sized silica powder, micron-sized alumina powder and coupling agent to the solvent for ultrasonic treatment to obtain a pre-dispersion;

[0045] (3) Add nano-scale silica powd...

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Abstract

The invention discloses a high-viscosity acrylic adhesive and a preparation method thereof. The high-viscosity acrylic adhesive is prepared from the following raw materials in parts by weight: methyl methacrylate, n-butyl acrylate, isocyanate, crylic acid, rosin resin, ethyl acetate, methylbenzene, benzoperoxide, terpene resin, azoic compounds, coupling agents, diethoxydimethylsilane, nanometer silicon dioxide powder, nanometer aluminum oxide powder, micrometer silicon dioxide powder, micrometer aluminum oxide powder and solvents. The acrylic adhesive obtained through preparation has excellent bonding power; in the use process, the separation from the base material cannot occur; through the simultaneous effect of the rosin resin, the terpene resin, the methyl methacrylate, the ethyl acrylate and the diethoxydimethylsilane, the high-temperature performance reduction due to addition of the silicon dioxide powder and the aluminum oxide powder is avoided; the high-temperature-resistant performance and the viscosity stability under the temperature difference change are improved, so that the product reliability is improved.

Description

technical field [0001] The invention relates to an adhesive, in particular to a high-viscosity acrylic adhesive and a preparation method thereof. Background technique [0002] With the vigorous development of electronic technology, such as mobile phones, MP4, MP5, cameras, digital video cameras, notebook computers and other electronic products are introduced. In order to prevent the surface of the electronic product screen from being scratched or worn and affect the use effect, a screen protective film is generally pasted on the screen surface of the electronic product. The protective film generally consists of a substrate layer and an adhesive layer coated on the substrate layer. The requirements for adhesive tapes are also getting higher and higher, and adhesive tapes with strong adhesion and thinner thickness are often required. For electronic products or other products, once the adhesive tape is used, it is required that the adhesive tape can maintain its viscosity und...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/12C09J11/04C09J11/08C09J11/06C08F220/14C08F220/18C08F220/06
CPCC08F220/14C08K2201/011C08K2201/014C08L2201/08C09J11/04C09J11/06C09J11/08C09J133/12C08L93/04C08L45/00C08K13/06C08K9/04C08K3/36C08K2003/2227C08F220/1804C08F220/06
Inventor 廖平湘
Owner 湖南省和祥润新材料有限公司