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Polyurethane microporous elastomer and sole material and damping material applying elastomer

A microcellular elastomer, polyurethane technology, applied in the fields of polyurethane microcellular elastomers, shock absorption materials, and shoe sole materials, can solve the problem of no obvious improvement in hydrolysis resistance, and achieve good hydrolysis resistance and good impact resistance. , the effect of good mechanical properties

Pending Publication Date: 2022-04-26
广东粤港澳大湾区黄埔材料研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent No. CN 113801465A, patent name polyurethane microcellular foamed elastomer and its preparation method and application, announced a polyurethane microcellular foamed elastomer that can also be used as shoe soles, which mainly uses polyester polyols to improve the elastomer The tear resistance and tensile properties of the material have not been significantly improved for the hydrolysis resistance of the material

Method used

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  • Polyurethane microporous elastomer and sole material and damping material applying elastomer
  • Polyurethane microporous elastomer and sole material and damping material applying elastomer
  • Polyurethane microporous elastomer and sole material and damping material applying elastomer

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Embodiment 1

[0038] In this embodiment, the polyurethane microcellular elastomer is obtained by reacting the isocyanate component and the isocyanate-reactive component, and the molar ratio of the isocyanate group in the isocyanate component to the hydroxyl group in the isocyanate-reactive component is 1:1. Among them, the isocyanate component is 4,4'-diphenylmethane diisocyanate (MDI); the isocyanate reactive component includes 10% of polyether diol, 60% of polyether triol, 20% of Polyester diol, 5% chain-extending cross-linking agent, 2% blowing agent, and 3% catalyst.

[0039] Polyether diol, starting from propylene glycol, polymerized by propylene oxide and capped with ethylene oxide, the content of ethylene oxide is 15%, and the number average molecular weight is 3000;

[0040] Polyether triol, starting from glycerol, polymerized with propylene oxide and capped with ethylene oxide, the content of ethylene oxide is 15%, and the number average molecular weight is 4000;

[0041] Polyeste...

Embodiment 2

[0045] In this embodiment, the polyurethane microcellular elastomer is obtained by reacting the isocyanate component and the isocyanate-reactive component, and the molar ratio of the isocyanate group in the isocyanate component to the hydroxyl group in the isocyanate-reactive component is 1:1. Among them, the isocyanate component is selected from 4,4'-diphenylmethane diisocyanate (MDI); the isocyanate reactive component includes 15% of polyether diol, 50% of polyether triol, 18% of Polyester diol, 9.5% chain-extending cross-linking agent, 1% foaming agent, 1.5% catalyst, and 5% anti-wear agent.

[0046] Polyether diol, starting from propylene glycol, polymerized by propylene oxide and capped with ethylene oxide, the content of ethylene oxide is 15%, and the number average molecular weight is 2000;

[0047] Polyether triol, starting from glycerol, polymerized with propylene oxide and capped with ethylene oxide, the content of ethylene oxide is 15%, and the number average molecu...

Embodiment 3

[0052] In this embodiment, the polyurethane microcellular elastomer is obtained by reacting the isocyanate component and the isocyanate-reactive component, and the molar ratio of the isocyanate group in the isocyanate component to the hydroxyl group in the isocyanate-reactive component is 1:1.2. Among them, the isocyanate component is selected from 4,4'-diphenylmethane diisocyanate (MDI); the isocyanate reactive component includes 35% of polyether diol, 35% of polyether triol, 10% of Polyester diol, 13.6% chain-extending cross-linking agent, 0.5% foaming agent, 0.9% catalyst, and 5% anti-wear agent.

[0053] Polyether diol, starting from propylene glycol, polymerized from propylene oxide and capped with ethylene oxide, the content of ethylene oxide is 15%, and the number average molecular weight is 600;

[0054] Polyether triol, starting from glycerol, polymerized with propylene oxide and capped with ethylene oxide, the content of ethylene oxide is 15%, and the number average ...

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Abstract

The invention belongs to the technical field of polymer synthetic materials, and particularly relates to a polyurethane microporous elastomer with the density of 0.5 g / cm < 3 >-0.8 g / cm < 3 >, the hardness of 35 Shore D to 55 Shore D, the tensile strength of 1 MPa to 3 MPa, the elongation at break of 200% to 500% and the abrasion loss of 100 mm < 3 >-250 mm < 3 >. The polyurethane microporous elastomer is prepared from an isocyanate component and an isocyanate reactive component through a reaction, the molar ratio of an isocyanate group in the isocyanate component to a hydroxyl group in the isocyanate reactive component is 1: (1-2.4). The polyether polyol and the polyester polyol are combined to serve as reaction raw materials, the effects of improving the flexibility of the polyurethane microporous elastomer and prolonging the elongation at break, the tensile strength, the tearing strength and the deformation resistance can be achieved, and the hydrolysis resistance of the polyurethane microporous elastomer can be effectively improved. In addition, the invention also provides a sole material using the elastomer, and a damping material using the elastomer.

Description

technical field [0001] The invention belongs to the technical field of polymer synthetic materials, and in particular relates to a polyurethane microporous elastic body and shoe sole materials and shock-absorbing materials using the elastic body. Background technique [0002] Polyurethane microcellular elastomer, also known as polyurethane microcellular elastomer, is a polymer synthetic material with more carbamate groups in the main chain, and its density is between foam and solid core materials. The pore size of the cells is 0.1-10 μm. Polyurethane microcellular elastomers take into account the advantages of light foam, good impact resistance, energy absorption, and cushioning performance, as well as high strength and good wear resistance of elastomers, so they are especially suitable as materials for shoe soles and tires. [0003] Polyurethane microcellular elastomers can be divided into two categories: polyester type and polyether type according to the type of polyol us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/42C08G18/32C08G18/76C08K7/26A43B13/04C08G101/00
CPCC08G18/6622C08G18/4812C08G18/4018C08G18/4841C08G18/4238C08G18/3281C08G18/7671C08K7/26A43B13/04C08G2101/00C08G2110/0083
Inventor 杨小牛王杰袁黎光崔庆实楚慧颖
Owner 广东粤港澳大湾区黄埔材料研究院
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