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Preparation of wood-like sulfuration resistant material for polyether type polyurethane shoes

A polyether polyurethane, vulcanization-resistant technology, applied in footwear, applications, apparel, etc., can solve the problems of restricting the application of polyurethane materials, poor thermal stability, low hardness, etc., and achieve good product performance repeatability and thermal stability. The effect of good performance and low density

Inactive Publication Date: 2011-04-13
无锡双象新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polyurethane materials have the above-mentioned excellent properties, they also have poor thermal stability, low density and low hardness, which restrict the application of polyurethane materials in certain fields.

Method used

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  • Preparation of wood-like sulfuration resistant material for polyether type polyurethane shoes
  • Preparation of wood-like sulfuration resistant material for polyether type polyurethane shoes
  • Preparation of wood-like sulfuration resistant material for polyether type polyurethane shoes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]

[0033] Control the temperature of components A and B at 40-42°C, foam through a polyurethane foam machine according to the mass ratio of component B / A = 100, inject into the shoe mold, mold temperature is 40°C, demould in 3 minutes, that is A finished product of wood-like vulcanization-resistant material for polyether polyurethane shoes was obtained.

[0034] When the molded product is placed for 24 hours, the performance of the product is measured as follows:

[0035] Density (g / m 3 )

Embodiment 2

[0037]

[0038]

[0039] Control the temperature of components A and B at 40-42°C, foam through a polyurethane foaming machine according to the mass ratio of component B / component A=60, inject into the shoe mold, mold temperature is 50°C, demould in 5 minutes, that is A finished product of wood-like vulcanization-resistant material for polyether polyurethane shoes was obtained.

[0040] When the molded product is placed for 24 hours, the performance of the product is measured as follows:

[0041] Density (g / m 3 )

Embodiment 3

[0043]

[0044] Control the temperature of components A and B at 40-42°C, foam through a polyurethane foam machine according to the mass ratio of component B / A = 85, inject into the shoe mold, mold temperature is 45°C, demould in 4 minutes, that is A finished product of wood-like vulcanization-resistant material for polyether polyurethane shoes was obtained.

[0045] When the molded product is placed for 24 hours, the performance of the product is measured as follows:

[0046] Density (g / m 3 )

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Abstract

The invention describes a preparation method of a simulated wood anti-sulfuration material for polyether polyurethane shoes. The simulated wood anti-sulfuration material is prepared by a chemical reaction of component A and component B . The component A is a mixture of polyether polyol A (functionality f equals 3, and OH equals 26-28mgKoH / g), polyether polyol B (functionality f equals 2, and OH equals 26-28mgKoH / g), polyether polyol C (GR-4110), a polyurethane crosslinking agent, a foam stabilizer, a foaming agent, a catalyst and the like; and the component B is a prepolymer of the polyether polyol B (functionality f equals 2, and OH equals 26-28mgKoH / g), 4,4-diphenyl diisocyanate (MDI) and polyphenylpolymethylene isocyanate (raw MDI).

Description

Background technique [0001] Polyurethane material is a synthetic polymer material with a wide range of uses and excellent performance. After World War II, the research and application of polyurethane materials developed worldwide. Polyurethane materials have the characteristics of wear resistance, tear resistance, good flexural resistance, and excellent processing performance. They are widely used in transportation, home appliances, shoemaking, machinery, construction, textiles, sports equipment, and national defense. Although polyurethane materials have the above-mentioned excellent properties, they also have poor thermal stability, low density and low hardness, which restrict the application of polyurethane materials in certain fields. Compared with ordinary polyurethane materials, polyether polyurethane imitation wood vulcanization-resistant materials have the characteristics of low density, high hardness and good thermal stability. In recent years, they have been widely u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/66A43B1/14C08G101/00
Inventor 何天华吴宇徐志强
Owner 无锡双象新材料有限公司
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