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Polyurethane elastomer and sole made from same

A polyurethane elastomer, polyurethane technology, used in polyurea/polyurethane coatings, shoe soles, footwear, etc., can solve the problems of insufficient strength and low density, and achieve low density, excellent bending resistance and aging resistance, high Effects of elasticity and strength

Active Publication Date: 2014-10-01
ZHEJIANG AOKANG SHOES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the viewpoint of light weight, polyurethane materials are widely used due to their advantages over other materials such as low density and bending resistance; however, polyurethane elastomer materials are not strong enough for sports shoes, etc. , and wear resistance, bending resistance, etc. need to be further improved

Method used

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  • Polyurethane elastomer and sole made from same
  • Polyurethane elastomer and sole made from same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The polyurethane elastomer described in this embodiment consists of 20 parts by weight of carbodiimide modified MDI, 8 parts by weight of polyester polyol P-2013 (Japan Kuraray Company), 6 parts by weight of polymer polyol , 6 parts by weight of 1,4-butanediol, 2.0 parts by weight of polyethylene-vinyl acetate copolymer (the content of polyethylene in the copolymer is 35wt%), 1.5 parts by weight of diethylamino ethyl methacrylate The composition of ester, 0.20 parts by weight of triethylenediamine, 0.40 parts by weight of water, and 0.25 parts by weight of foam stabilizer DC-193 is mixed uniformly at 100 ° C, and then injected into the preheating temperature of 115 ° C In the predetermined shape of the mold, react for 25 minutes, demould and then aged at 110°C for 12 hours to obtain the polyurethane elastomer.

Embodiment 2

[0019] The polyurethane elastomer described in this embodiment consists of 22 parts by weight of carbodiimide modified MDI, 10 parts by weight of polyester polyol P-2013 (Japan Kuraray Company), 5 parts by weight of polymer polyol , 5 parts by weight of 1,4-butanediol, 1.8 parts by weight of polyethylene-vinyl acetate copolymer (the content of polyethylene in the copolymer is 35wt%), 1.5 parts by weight of diethylamino ethyl methacrylate The composition of ester, 0.20 parts by weight of triethylenediamine, 0.40 parts by weight of water, and 0.25 parts by weight of foam stabilizer DC-193 is mixed uniformly at 100 ° C, and then injected into the preheating temperature of 115 ° C In the predetermined shape of the mold, react for 25 minutes, demould and then aged at 110°C for 12 hours to obtain the polyurethane elastomer.

Embodiment 3

[0028]This embodiment relates to a shoe sole, the shoe sole is mainly formed by the polyurethane elastomer of Example 1, and the surface treatment liquid is coated on the surface of the polyurethane elastomer, and then cured at 100 ° C for 2 to 3 minutes, and then Re-cure at 120°C for 1 minute; a polyurethane wear-resistant layer with a thickness of about 0.5 mm is formed. The surface treatment solution is a treatment solution composed of a first polyurethane component and a second polyurethane component; and the mass ratio of the first polyurethane component to the second polyurethane component is 2:1. The first polyurethane component consists of 10-12 parts by weight of TDI-80, 3-4 parts by weight of polytrimethylene ether glycol (Cerenol H series from DuPont, USA), 2.0-2.5 parts by weight of 1,4 -Butanediol, 1.8~2.0 parts by weight of HTBN, 0.1~0.2 parts by weight of dibutyltin dilaurate mixed, 30~32 parts by weight of deionized water and 0.8~1.2 parts by weight of sodium l...

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Abstract

The invention relates to a polyurethane elastomer. The polyurethane elastomer is formed by uniformly mixing the following ingredients in parts by weight: 20-22 parts of diisocyanate, 8-10 parts of polyester polyol, 5-6 parts of 1,4-butanediol, 1.8-2.0 parts of hydroxy-terminated butadiene, 1.2-1.5 parts of diethylaminoethyl methacrylate, 0.20-0.25 part of triethylenediamine, 0.40-0.50 parts of water, and 0.25-0.30 parts of foam stabilizer, and injecting the mixture a preheated pre-shaped die for reaction and curing. The polyurethane elastomer provided by the invention has micropore structures, has relatively high elasticity and strength compared with a conventional foamed plastic, is relatively low in density, and is excellent in bendability resistance and aging resistance.

Description

technical field [0001] The invention relates to the technical field of processing resin materials and daily necessities, more specifically, the invention relates to a polyurethane elastomer and a shoe sole made of it. Background technique [0002] Shoes are a necessary product for human life, and with the continuous development of human civilization, the types of shoes are constantly enriched, such as casual shoes, sports shoes, canvas shoes, chemical shoes, sandals, slippers, medical shoes and safety shoes, etc. All kinds of shoes. As sole materials for these shoes, natural materials such as leather, rubber, polyvinyl chloride, and polyurethane or synthetic materials are widely used. From the viewpoint of light weight, polyurethane materials are widely used due to their advantages over other materials such as low density and bending resistance; however, polyurethane elastomer materials are not strong enough for sports shoes, etc. , and wear resistance, bending resistance,...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/42C08G18/63C08G18/62C08J9/08B32B27/40A43B13/04
CPCA43B13/04C08G18/4072C08G18/4829C08G18/4854C08G18/6212C08G18/6262C08G18/6283C08G18/632C08G18/6511C08G18/6755C08G18/797C08G2410/00C09D175/08C08G2110/0008C08G2110/0083C08L75/08
Inventor 王振滔温媛瑛罗贤忠刘玲
Owner ZHEJIANG AOKANG SHOES
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