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Polyurethane material based on carbon dioxide copolymer polyalcohol and application thereof

A technology of copolymer polyol and polyurethane materials, which is applied in the field of polyurethane materials, can solve problems such as research reports on microporous elastomer soles, and achieve important environmental protection and resource utilization significance, strong hydrolysis resistance, high strength and The effect of abrasion resistance

Active Publication Date: 2011-08-03
HUIZHOU DAYAWAN DAZHI FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research reports on this kind of materials mainly focus on coatings, adhesives, foam plastics, etc., and there are no research reports on microcellular elastomer soles.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A carbon dioxide copolymer polyol-based polyurethane material is characterized in that: it includes polyol component component A and isocyanic acid component B;

[0025] Polyol component A is to put carbon dioxide polymer polyol, chain extender, water, foam stabilizer, catalyst, etc. Hours, prepared by removing air bubbles, wherein the ratio of each component is carbon dioxide polymer polyol: chain extender: water: foam stabilizer: catalyst=100:1~15:0.1~2:0.1~2: 0.1~2;

[0026] Isocyanic acid component B is prepared by using carbon dioxide copolymer polyol, small molecule diol, and diisocyanate in a certain proportion, putting them into a reaction kettle, and reacting at 0-120°C for 0.1-10 hours under stirring. The ratio is based on the weight ratio of carbon dioxide copolymer polyol: diisocyanate: chain extender=100:120~250:2~30, and the viscosity of isocyanic acid component B at 0~120°C is 200~800mPa.s, At the same time, ensure that the weight percent content of iso...

Embodiment 2

[0036] Add 200 grams of diethylene glycol, 5 liters of propylene oxide, and 100 grams of double metal cyanide catalyst into a 10-liter reactor, and add carbon dioxide until the system pressure rises to 2Mpa. Turn on the stirring and heating device, raise the temperature of the system to 60°C, add additional carbon dioxide, react at 60°C for 10 hours until the pressure reaches 6.0Mpa, cool to room temperature, remove residual propylene oxide under reduced pressure under stirring conditions, and then discharge. Obtain 5890g light yellow viscous resin, test shows, the carbonate group content is 0.37 in the product, and the hydroxyl value is 45.

Embodiment 3

[0038] Take 2kg of carbon dioxide polymer polyol prepared according to the method of Example 2 and ethylene glycol, water, Dabco DC193, triethylenediamine according to the ratio of 100:15:0.5:0.5:0.5 into the mixing tank, and heat up to 45°C , stirred and mixed for 1 hour, and added to the material tank A of the sole pouring machine; take a certain amount of carbon dioxide polymer polyol, diphenylmethane diisocyanate (MDI), and ethylene glycol prepared according to the method of Example 2 according to 100:250: Add the ratio of 15 to the reaction tank B, and react at 60°C for 5 hours to obtain the isocyanic acid component B with an isocyanate content of 18.8%; add the isocyanic acid component B to the B material tank of the shoe sole casting machine, adjust Warm to 45°C. Adjust the ratio of polyol component A and isocyanic acid component B close to the center point by adjusting the speed of the metering pump to ensure that the isocyanate index is within the range of 95 to 105. ...

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Abstract

The invention discloses a polyurethane material based on carbon dioxide copolymer polyalcohol, belonging to the field of polyurethane sole materials. A polyalcohol component A and an isocyanate component B are fully mixed, poured, foamed and demolded to prepare polyurethane micropore elastic body sole, wherein the polyalcohol component is formed by the mixing of carbon dioxide polymer polyalcohol, a foaming agent, a foam stabilizer, a catalyst, a chain extender according to a definite proportion, the isocyanate component is prepared by the reaction of carbon dioxide polymer polyalcohol, a chain extender and isocyanate according to a certain proportion under controlled conditions. Compared with polyether and polyester type sole material, the polyurethane sole material has excellent hydrolysis resistance performance of polyether type polyurethane sole and wear-resistance and high strength of polyester type polyurethane sole, can solve the problems of low polyether strength, no abrasion resistance and no hydrolysis resistance of polyester. In addition, the carbon dioxide polymer polyalcohol adopted by the polyurethane material is synthesized by taking carbon dioxide as the main raw material; the raw material has low cost; and therefore, the polyurethane material has wide market application space.

Description

[0001] technical field [0002] The invention relates to a polyurethane material, in particular to a carbon dioxide copolymer polyol-based polyurethane material and its application, belonging to the field of polyurethane shoe sole materials. Background technique [0003] Polyurethane material is a new type of multifunctional polymer material with excellent performance. It occupies a very important position in the material industry and is one of the six major synthetic materials in the world. Polyurethane microcellular elastomers have been more and more widely used in shoe sole materials due to their excellent wear resistance, tear resistance, impact resistance, excellent resilience, light weight, and comfortable wearing. At present, the world Polyurethane materials already account for a large part of the footwear industry, and the demand in the domestic market is also huge, reaching the level of one million tons. [0004] There are generally two types of polyurethane soles:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/44A43B13/04C08G101/00C08G64/34
Inventor 蔡志华
Owner HUIZHOU DAYAWAN DAZHI FINE CHEM
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