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Latex adhesive

An adhesive and latex technology, used in latex adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems of aging resistance, oil resistance, chemical resistance, temperature resistance, frost resistance, poor bonding strength Poor water resistance and frost resistance, unsuitable for high-tension use environments, etc., to achieve the effects of short bonding time, low cost, and excellent application prospects

Inactive Publication Date: 2019-01-18
林昭佳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Adhesives currently on the market are not strong enough to be suitable for high-tension environments
At the same time, due to the action of the adhesive, the adhesive part is easy to break due to hardening and loss of elasticity.
Natural latex has been used as an adhesive a long time ago. It is characterized by high solid content, good film-forming properties, and its viscosity can be adjusted at will. However, its aging resistance, oil resistance, chemical resistance, temperature resistance, Poor frost resistance
The natural latex mixture has high cohesion and high self-adhesiveness, but because of its small molecular chain polarity, it has poor initial adhesion with the adherend, slow curing, low bond strength, and the bond strength is only 20lb, water resistance and frost resistance Poor performance, etc., need further improvement and perfection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] According to mass percentage, the formula of latex adhesive is as follows:

[0036] 100 parts of latex, 0.3 parts of potassium hydroxide, 0.6 parts of fatty sulfonate, 1.2 parts of polyethylene glycol, 2 parts of sulfur dispersant, 6.5 parts of zinc oxide dispersant, 2 parts of antioxidant dispersant, titanium oxide dispersant 4 parts and 0.1 part of proteolytic enzyme.

[0037] The preparation process is as follows:

[0038] S1: add 100 parts of latex in the first reactor, slowly drop potassium hydroxide solution while stirring, adjust the pH value to be about 10, continuously stir for 1h;

[0039] S2: In the second reactor, 0.6 parts of fatty sulfonate, 1.2 parts of polyethylene glycol, 2 parts of sulfur dispersants, 6.5 parts of zinc oxide dispersants, 2 parts of antioxidant dispersants and 4 parts of titanium oxide dispersants After stirring evenly, react at 24-25°C for 6 hours, and then slowly add it into the stirring first reactor;

[0040] S3: Add 0.1 part of ...

Embodiment 2

[0043] According to mass percentage, the formula of latex adhesive is as follows:

[0044] 100 parts of latex, 0.25 parts of potassium hydroxide, 0.4 parts of fatty sulfonate, 1.0 parts of polyethylene glycol, 1 part of sulfur dispersant, 5 parts of zinc oxide dispersant, 1 part of antioxidant dispersant, titanium oxide dispersant 3 parts and 0.1 part of proteolytic enzyme.

[0045] The preparation process is the same as that of Example 1. After bonding with the same bonding method as in Example 1, the data obtained by testing the bonding strength of the bonded part is 46 lb.

Embodiment 3

[0047] According to mass percentage, the formula of latex adhesive is as follows:

[0048] 100 parts of latex, 0.35 parts of potassium hydroxide, 0.8 parts of fatty sulfonate, 1.5 parts of polyethylene glycol, 3 parts of sulfur dispersant, 8 parts of zinc oxide dispersant, 3 parts of antioxidant dispersant, titanium oxide dispersant 6 parts and 0.1 part of proteolytic enzyme.

[0049] The preparation process is the same as that of Example 1. After bonding using the same bonding method as in Example 1, the data obtained by testing the bonding strength of the bonded part is 43 lb.

[0050] Through the latex adhesive prepared in the above three examples, obtained by testing, the bond strength of the latex adhesive prepared by three different formulations is far greater than the bond strength 20lb of the adhesive prepared by common method, wherein, the implementation The latex adhesive prepared in Example 1 has the best bonding strength, reaching 50lb, which greatly improves the ...

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PUM

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Abstract

The invention discloses a latex adhesive. The latex adhesive comprises latex, potassium hydroxide, fatty sulfonate, polyethylene glycol fatty alcohol, a dispersing agent and a reaction enzyme; the latex adhesive comprises the following raw materials by mass percent: 100 parts of latex, 0.25-0.35 part ofpotassium hydroxide, 0.4-0.8 part of fatty sulfonate, 1.0-1.5 parts of polyethylene glycol fattyalcohol, 10-20 parts of a dispersing agent and 0.1-0.15 part of a reaction enzyme. The bonding strength of the latex adhesive reaches 50 lb, and the product stability is greatly improved; the bondingproperty of the adhesive is excellent, the cost is low, and the latex adhesive is non-toxic; the latex adhesive is convenient to use, is suitable for both manual and mechanical processing, and is particularly suitable for an adhesion latex product; as the fatty sulfonate and the polyethylene glycol fatty alcohol are added in the natural latex, the prepared adhesive is high quality and lower in cost; and the process is simple, the operation is convenient, the bonding time of the prepared adhesive is short, the price is cheap, and the latex adhesive has an excellent application prospect.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a latex adhesive. Background technique [0002] Adhesives currently on the market are not strong enough to be suitable for high-tension environments. At the same time, due to the action of the adhesive, the adhesive part is easy to break due to hardening and loss of elasticity. Natural latex has been used as an adhesive a long time ago. It is characterized by high solid content, good film-forming properties, and its viscosity can be adjusted at will. However, its aging resistance, oil resistance, chemical resistance, temperature resistance, Poor frost resistance. The natural latex mixture has high cohesion and high self-adhesiveness, but because of its small molecular chain polarity, it has poor initial adhesion with the adherend, slow curing, low bond strength, and the bond strength is only 20lb, water resistance and frost resistance Poor performance, etc., need further imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J121/02C09J11/04C09J11/06C09J11/08
CPCC08K2003/2237C08K2003/2296C08L2205/03C09J11/04C09J11/06C09J11/08C09J121/02C08L71/02C08L89/00C08K13/02C08K3/22C08K5/42C08K3/06
Inventor 林昭佳刘岳
Owner 林昭佳
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