Polyurethane microporous elastomer, preparation method and application thereof

A microporous elastomer and polyurethane technology, applied in the field of polyurethane, can solve the problems of poor mechanical properties, easy hydrolysis, easy mildew, etc., achieve good physical and mechanical properties, realize environmental protection utilization, and reduce demand

Active Publication Date: 2010-10-13
COVESTRO DEUTSCHLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyester polyurethane microcellular elastomer has good mechanical properties, but its low temperature performance is poor, easy to hydrolyze, easy to mildew, and the processing technology is relatively complicated
Polyether polyurethane microcellular elastomer has good hydrolysis resistance and excellent low temperature toughness, but its mechanical properties are relatively poor

Method used

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  • Polyurethane microporous elastomer, preparation method and application thereof
  • Polyurethane microporous elastomer, preparation method and application thereof
  • Polyurethane microporous elastomer, preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0074] Preparation of soles

[0075] According to an embodiment of the present invention, the polyurethane elastomer provided by the present invention can be used for making shoes, including parts such as shoe soles.

[0076] The specific embodiments and methods disclosed herein are described by way of illustration and not limitation.

[0077] Raw materials mentioned in context are described below

[0078] Bayflex 2003E: polyester polyol, with an average molecular weight of 2000 and a hydroxyl value of 56 mg KOH / g, available from Bayer Material Technology Co., Ltd.

[0079] Arcol 1026: polyether polyol, with an average molecular weight of 4000 and a hydroxyl value of 28 mg KOH / g, available from Bayer Material Technology Co., Ltd.

[0080] Arcol 1362: polyether polyol, with an average molecular weight of 6000 and a hydroxyl value of 28 mg KOH / g, available from Bayer Material Technology Co., Ltd.

[0081] Hyperlite E851: polyether polyol, hydroxyl value of 18.5mg KOH / g, a...

Embodiment 1-4

[0090] Add the 4,4'-MDI and polyol in the amount listed in Table 1 into the reaction kettle, react at 70°C for 2 hours, cool the reaction kettle to 65°C, and modify the carbimide with the amount listed in Table 1. MDI (CD-MDI) was added to the reaction kettle and stirred for 30 minutes, and cooled to room temperature to obtain isocyanate-terminated prepolymers A1-A4.

Embodiment 5

[0092] Add the 4,4'-MDI and polyol in the amount listed in Table 1 into the reaction kettle, react at 60°C for 2 hours, cool the reactor to 50°C, and modify the carbodiimide in the amount listed in Table 1. The MDI (CD-MDI) was added to the reaction kettle and stirred for 30 minutes, and cooled to room temperature to obtain the isocyanate-terminated prepolymer A5.

[0093] Table 1 Preparation of isocyanate terminated prepolymers

[0094]

[0095] As shown in Table 1,

[0096] In Examples 1 and 5, in the process of preparing the isocyanate-terminated prepolymer, the polycarbonate polyol prepared by the reaction of carbon dioxide and an epoxy compound was not added; in Examples 2-4, in the preparation of the isocyanate-terminated prepolymer In the process of polymerizing, a polycarbonate polyol prepared by the reaction of carbon dioxide and an epoxy compound is added.

[0097] Preparation of Polyurethane Microcellular Elastomer

[0098] The isocyanate-terminated prepolym...

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Abstract

The invention relates to the field of polyurethane, in particular to a polyurethane microporous elastomer, a preparation method and an application thereof. The polyurethane microporous elastomer is a reaction product of an isocyanate-terminated prepolymer obtained by reaction of isocyanate and first polyol, second polyol, a chain extender and a catalyst, and the first polyol and / or the second polyol at least comprise / comprises polycarbonate polyol obtained by reaction of carbon dioxide and an epoxy compound. The preparation method of the polyurethane microporous elastomer can not only reduce the demands on raw materials derived from the petrochemical industry, but also realize the environment-friendly utilization of greenhouse gas-carbon dioxide.

Description

technical field [0001] The invention relates to the field of polyurethane, in particular to a polyurethane microcellular elastomer, a preparation method and application thereof. Background technique [0002] Polyurethane microcellular elastomer has excellent abrasion resistance, tear resistance, flexibility and low density, is a material with a wide range of uses, often used to make footwear parts and automotive soft parts. Especially in the shoemaking industry, the sole made of polyurethane microcellular elastomer has the advantages of light weight, slip resistance, good elasticity, high strength, wear resistance, oil resistance and so on. [0003] At present, there are mainly two types of polyurethane microcellular elastomers used to prepare shoe soles, namely polyester type polyurethane microcellular elastomers and polyether type polyurethane microcellular elastomers. Polyester polyurethane microcellular elastomer has good mechanical properties, but its low temperature p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/44C08G18/10A43B13/04C08G101/00
CPCC08G18/797C08G2410/00C08G18/4018C08G18/725C08G2101/0083C08G2101/0066C08G18/6607C08G18/12C08G18/44C08G2110/0066C08G2110/0083C08G18/664
Inventor 周志平曹忠梁亦德张跃冬林仁杰
Owner COVESTRO DEUTSCHLAND AG
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