Pressure-sensitive adhesive and preparation method thereof

A technology for pressure-sensitive adhesives and cross-linked monomers, applied in adhesives, monocarboxylate copolymer adhesives, adhesive types, etc., can solve internal device damage, pressure-sensitive adhesive bonding performance reduction, and adhesion Structural damage and other problems, to achieve the effect of low surface tension, excellent weather resistance, water resistance and alkali resistance

Inactive Publication Date: 2013-01-02
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the microscopic molecular structure of most pressure-sensitive adhesives and the macroscopic properties reflected in the formulation system are difficult to adapt to and accept such challenges. Under the stimulation of external factors such as ultraviolet rays, ozone, acid rain, salt spray, and high and low temperature changes , the bonding performance of the pressure-sensitive adhesive is severely reduced, and the bonding structure is destroyed, which leads to moisture vapor penetrating through the adhesive layer and causing internal device damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Weigh 200 grams of ethyl acrylate, 200 grams of n-octyl acrylate and 200 grams of dodecyl methacrylate, 100 grams of methyl vinyl acetate, 100 grams of ethyl methacrylate and 100 grams gram of vinyl pivalate, 10 grams of methacrylic acid and 10 grams of hydroxyethyl methacrylate, 5 grams of azobisisobutylcyanide, 1000 grams of ethyl acetate and 200 grams of toluene;

[0025] 2) Add part of the above-mentioned ethyl acetate to the above-mentioned azobisisobutyrocyanide to prepare an ethyl acetate solution containing azobisisobutyrocyanide with a mass concentration of 0.05%, and the remaining ethyl acetate after preparing the said ethyl acetate stand-by;

[0026] 3) The ethyl acrylate, n-octyl acrylate, lauryl methacrylate, methyl vinyl acetate, ethyl methacrylate, vinyl pivalate, methacrylic acid, methacrylic acid described in step 1) Hydroxyethyl acrylate and toluene and the remaining ethyl acetate described in step 2) were mixed evenly, added to the reaction kettle...

Embodiment 2

[0028] 1) Weigh 300 grams of n-butyl acrylate, 300 grams of isooctyl methacrylate and 300 grams of vinyl neodecanoate, 200 grams of styrene, 200 grams of isobornyl methacrylate and 200 grams of Vinyl neononanoate, 30 grams of methylene succinic acid and 30 grams of hydroxypropyl methacrylate, 8 grams of azobisisoheptylcyanide, 1500 grams of ethyl acetate and 300 grams of toluene;

[0029] 2) Add part of the above-mentioned ethyl acetate to the above-mentioned azobisisobutyrocyanide to prepare an ethyl acetate solution containing azobisisobutyrocyanide with a mass concentration of 0.08%, and the remaining ethyl acetate after preparing the ethyl acetate stand-by;

[0030] 3) The n-butyl acrylate, isooctyl methacrylate, vinyl neodecanoate, styrene, isobornyl methacrylate, vinyl neononanoate, methylene succinic acid, Mix hydroxypropyl methacrylate, toluene and the remaining ethyl acetate described in step 2) evenly, add to the reaction kettle, stir at 65°C for 1.5h, then raise th...

Embodiment 3

[0032] 1) Weigh 500 grams of ethyl acrylate, 500 grams of n-octyl acrylate and 500 grams of new undecyl vinyl ester, 300 grams of methyl vinyl acetate, 300 grams of ethyl methacrylate and 300 grams of new Vinyl valerate, 50 g of methacrylic acid and 50 g of hydroxyethyl methacrylate, 10 g of formyl peroxide, 2000 g of ethyl acetate and 500 g of toluene;

[0033] 2) Add part of the above-mentioned ethyl acetate to the above-mentioned formyl peroxide to prepare an ethyl acetate solution containing formyl peroxide with a mass concentration of 0.1%, and prepare the remaining ethyl acetate for use after preparing the ethyl acetate;

[0034] 3) The ethyl acrylate, n-octyl acrylate, neoundecyl vinyl ester, methyl vinyl acetate, ethyl methacrylate, vinyl pivalate, methacrylic acid, hydroxymethacrylate described in step 1) Mix ethyl ester, toluene and the remaining ethyl acetate described in step 2) evenly, add it to the reaction kettle, stir at 70°C for 2h, then raise the temperature ...

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PUM

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Abstract

The invention relates to the field of adhesives and particularly relates to an acrylate pressure-sensitive adhesive with high weather resistance and low surface tension and a preparation method thereof. The pressure-sensitive adhesive comprises, by weight, 60 to 100 parts of a soft monomer, 30 to 90 parts of a hard monomer, 2 to 10 parts of a cross-linking monomer, 0.5 to 1 part of an initiator and 120 to 250 parts of an organic solvent, and the pressure-sensitive adhesive is prepared by using such a formula system. According to the invention, the pressure-sensitive adhesive has excellent weather resistance, low surface tension and accordingly improved insulating performance, water resistance and alkali resistance, and can be used in places and industries in which environment is harsh and requirements on weather resistance or aging resistance are strict, e.g., the solar photovoltaic industry and the automobile industry.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to an acrylate pressure-sensitive adhesive with high weather resistance and low surface tension and a preparation method thereof. Background technique [0002] With the rapid development of science and technology, the application of pressure-sensitive adhesives in various fields has developed rapidly, and the use environment has also developed from indoor to outdoor, and even more harsh environments. In this case, the weather resistance of pressure-sensitive adhesives has gradually been greatly challenged. In the prior art, the microscopic molecular structure of most pressure-sensitive adhesives and the macroscopic properties reflected in the formulation system are difficult to adapt to and accept such challenges. Under the stimulation of external factors such as ultraviolet rays, ozone, acid rain, salt spray, and high and low temperature changes , the bonding performance of the pressure-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J133/10C09J131/02C09J7/02
Inventor 秦昌王建斌陈田安解海华
Owner YANTAI DARBOND TECH
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