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Polyurethane elastomer composition for automobile slip pad

A polyurethane elastomer and anti-slip pad technology, applied in the field of polyurethane elastomers, can solve the problems of limitation, low production efficiency, long curing time, etc., and achieve the effects of high production efficiency, comfortable hardness and hand feeling, and easy industrial production.

Active Publication Date: 2011-05-04
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyurethane is a polymer synthetic material with properties between rubber and plastic. It is characterized by a wide range of hardness adjustment. It has both the elasticity of rubber and the hardness of plastic. The polyurethane elastomer used in general automobile anti-skid pads has passed the It is obtained by adding a lot of plasticizers, so that after a period of time, the plasticizers will migrate and precipitate to the surface, which limits its use in the production of products that come into contact with the human body
Moreover, the curing time of polyurethane elastomer products for automobile anti-skid pads is long and the production efficiency is low

Method used

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  • Polyurethane elastomer composition for automobile slip pad

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Polymer components: 20% polyether polyol with functionality 2 and molecular weight 1000, 78% polyether polyol (PPG330N) with functionality 3 and molecular weight 3000, organic bismuth catalyst 1%, UV-3290.5%, 10100.5% according to Prepared by the method of the present invention.

[0026] Prepolymer: 45% of polyether polyol with 2 functionalities and molecular weight of 1000, 55% of liquefied MDI, reacted at 70°C to 90°C for 2 to 3 small vacuums (-0.095MPa) to remove bubbles, and obtain isocyanate content 10% prepolymer.

[0027] The prepolymer and the polymer component are mixed at a ratio of 100:20, the mixing temperature is 25°C-40°C, the vulcanization temperature of the product is 60°C-70°C, and the vulcanization is 8 minutes to obtain a Shore 5A polyurethane elastomer product.

Embodiment 2

[0029] Polymer components: 5% polyether polyol with functionality 3 and molecular weight 300, 93% polyether polyol (PPG330N) with functionality 3 and molecular weight 5000, bismuth catalyst 0.5%, zinc catalyst 0.5%, UV-3280.5% , 1010 0.5% prepared according to the method of the present invention.

[0030] Prepolymer: 65% of polyether polyol with 2 functionalities and molecular weight of 3000, MDI30%, liquefied MDI5%, reacted at 70℃~90℃ for 2~3 small vacuums (-0.095MPa) to remove bubbles and obtain iso Prepolymer with 7% cyanate content.

[0031] The prepolymer and the polymer component are mixed at a ratio of 100:35, the mixing temperature is 25°C-40°C, the product vulcanization temperature is 60°C-70°C, and vulcanized for 5 minutes to obtain a Shore 20A polyurethane elastomer product.

Embodiment 3

[0033] Polymer component: polyether polyol 10% of functionality 2, molecular weight 2000, functionality 3, polyether polyol 88.5% of molecular weight 6000, bismuth catalyst 0.5%, UV-5310.5%, BHT 0.5% according to the present invention prepared by the method described above.

[0034] Prepolymer: 62% of polyether polyol with 2 functionalities and molecular weight of 2000, MDI30%, and liquefied MDI8% are reacted at 70°C to 90°C for 2 to 3 small vacuums (-0.095MPa) to remove air bubbles and obtain isocyanide Prepolymer with 10% acid group content.

[0035] The prepolymer and the polymer component are mixed at a ratio of 100:20, the mixing temperature is 25°C-40°C, the vulcanization temperature of the product is 60°C-70°C, and the vulcanization is 8 minutes to obtain a polyurethane elastomer product of Shore 0A.

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Abstract

The invention discloses a polyurethane elastomer composition for an automobile slip pad, which has a double-component system and consists of two components, namely prepolymer and polymer, wherein the prepolymer with 7 to 14 percent of isocyanato is prepared by reacting diphenylmethane diisocyanate with polyoxypropylene polyol at the temperature of between 70 and 90 DEG C; and the polymer is prepared from poly-polyoxypropylene polyol, a catalyst and an antiaging agent. The polymer is mixed with the prepolymer according to a ratio of 100-20 to 100-35 to form a product with Shore hardness of 0 to 20. The polyurethane elastomer composition is mainly used for manufacturing insoles, automobile slip pads, bicycle saddles, handicapped wheelchair saddles and other health-care protective articles, and the obtained products are environment-friendly and safe, and have good processability and comfortable handfeel.

Description

technical field [0001] The invention belongs to the field of polyurethane elastomers, in particular to a polyurethane elastomer composition for automobile anti-skid pads. Background technique [0002] Polyurethane is a polymer synthetic material with properties between rubber and plastic. It is characterized by a wide range of hardness adjustment. It has both the elasticity of rubber and the hardness of plastic. The polyurethane elastomer used in general automobile anti-skid pads has passed the It is obtained by adding a lot of plasticizers, so that after a period of time, the plasticizers will migrate and precipitate to the surface, which limits its use in the production of products that come into contact with the human body. Moreover, the curing time of polyurethane elastomer products for automobile anti-skid pads is long, and the production efficiency is low. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08G18/76C08G18/48C08G18/10
Inventor 陈海良张芳崔汝岭陈伟
Owner SHANDONG INOV POLYURETHANE
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