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Neoprene adhesive and preparation method thereof

A chloroprene rubber and adhesive technology, applied in the adhesive field, can solve the problems of insufficient durability, weak adhesive viscosity, etc., and achieve the effects of simple preparation method, high popularization and application value, and easy control of the bonding process

Inactive Publication Date: 2019-12-20
WUHU FENGXUE RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a bonding method for rubber products. The present invention uses an adhesive with strong stickiness and long-lasting stickiness, which not only overcomes the defects of weak stickiness and insufficient durability of the adhesive in the prior art, but also , the bonding method is simple, environmentally friendly, and has high promotion and application value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] In order to achieve the above object, the present invention provides a preparation method of a neoprene adhesive, comprising the following steps:

[0019] (1) grinding chloroprene rubber, adding hexane hydrocarbon solvent and stirring until chloroprene rubber is fully dissolved, and the mass concentration of chloroprene rubber is 50-60%, to obtain composition A;

[0020] (2) dissolving nitroso fluororubber raw rubber in dimethoxymethane at a mass concentration of 50-60% to prepare a solution to obtain composition B;

[0021] (3) Mixing composition A, composition B, tackifying resin, crosslinking agent, magnesium oxide and zinc oxide to obtain a neoprene adhesive.

[0022] Through the above technical scheme, the present invention grinds the chloroprene rubber, adds hexane hydrocarbon solvent and stirs until the chloroprene rubber is fully dissolved. Binders, magnesium oxide and zinc oxide were used to obtain adhesives with strong adhesion and durability. Not only that,...

Embodiment 1

[0035] A preparation method of a neoprene adhesive, comprising the following steps:

[0036] (1) Grind the neoprene rubber (the neoprene rubber is a neoprene rubber with an elongation at break of 850%, a rebound rate of 60% and a hardness of 70 ShoreA), add cyclohexane and stir until the neoprene rubber is fully Dissolving, the mass concentration of neoprene rubber is 50% to obtain composition A;

[0037] (2) The nitroso fluororubber raw rubber (intrinsic viscosity is 0.05dLg -1 , its physical form is a liquid form, with room temperature fluidity) is dissolved in dimethoxymethane at a mass concentration of 50% to prepare a solution to obtain composition B;

[0038] (3) mix composition A, composition B, finger rosin, aziridine, magnesium oxide and zinc oxide to obtain a neoprene adhesive,

[0039]In parts by mass, relative to 100 parts of composition A, the consumption of composition B is 40 parts, which means that the consumption of rosin is 8 parts, the consumption of aziri...

Embodiment 2

[0042] According to the preparation method of the neoprene adhesive of Example 1, the difference is that the consumption is changed to: in parts by mass, relative to 100 parts of composition A, the consumption of composition B is 50 parts, referring to the consumption of rosin is 10 parts, the consumption of aziridine is 15 parts, the consumption of magnesium oxide is 3 parts, and the consumption of zinc oxide is 3 parts.

[0043] Apply neoprene adhesive to the corresponding adhesive bond that has been wiped clean, and press the corresponding adhesive point tightly after 6-8 minutes. The peel strength was tested according to GB / T2791-1995. The sample substrate was rubber. After testing, the peel strength was 4.6kN / m. After 48 hours, the peel strength was 6.3kN / m. After 3 months at room temperature, the peel strength was basically no The peel strength of the sample did not decrease significantly, and the decrease did not exceed 10% after being placed in the environment of 68 °C...

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Abstract

The invention relates to rubber adhesive, and discloses neoprene adhesive and a preparation method thereof. The preparation method comprises the following steps: grinding neoprene, adding a hexyl alkane solvent, stirring until the neoprene is completely dissolved, and combining with a composition B containing nitrosofluoro rubber raw rubber, tackifying resin, magnesium oxide and zinc oxide to obtain adhesive with high viscosity and adhesion persistence. Furthermore, the preparation method of the adhesive is simple and environmentally-friendly, the adhesion process is easy to control and high popularization and application value is achieved.

Description

technical field [0001] The present invention relates to adhesives, in particular to a neoprene adhesive and a preparation method thereof. Background technique [0002] Rubber products, especially rubber shoes, have high requirements on the adhesive of rubber shoes due to the particularity of the environment in which they are used. [0003] Rubber adhesives are widely used in the preparation process of rubber products. Neoprene adhesives, as a kind of rubber adhesives, are also commonly used in plastic adhesives, but the chlorine used in the prior art Butadiene rubber adhesive is usually a single combination of chloroprene rubber and solvent, so in the process of bonding rubber products, especially in the process of bonding different rubber products, it often leads to the phenomenon of weak bonding and easy loosening. The bonding effect is poor, and the product quality is also greatly affected. [0004] Chinese patent application 201410225215.3 discloses a neoprene adhesive...

Claims

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Application Information

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IPC IPC(8): C09J111/00C09J127/12C09J11/08C09J11/04C09J11/06C09J11/00
CPCC08K2003/222C08K2003/2296C08L2205/03C08L2205/035C09J11/00C09J11/04C09J11/06C09J11/08C09J111/00C08L27/12C08L93/04C08L79/00C08K3/22C08K5/3412
Inventor 陆雪龙苏福男胡银
Owner WUHU FENGXUE RUBBER
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