Polyurethane elastomer as well as preparation method and usage thereof

A polyurethane elastomer and polymer technology, applied in applications, shoe soles, clothing, etc., can solve problems such as damage to the health of production operators, environmental pollution, and user health damage

Inactive Publication Date: 2009-10-28
拜耳材料科技贸易(上海)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the metal catalysts used in the preparation of polyurethane elastomers will pollute the environment and damage the health of production operators, and the metal catalysts remaining in polyurethane elastomer products may cause damage to the health of users

Method used

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  • Polyurethane elastomer as well as preparation method and usage thereof
  • Polyurethane elastomer as well as preparation method and usage thereof
  • Polyurethane elastomer as well as preparation method and usage thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative Embodiment C1

[0105] In Comparative Example C1, the traditional polyether polyol Arcol Polyol 1362 was selected to prepare the polyurethane elastomer, and the polyether polyol was 15% EO-terminated polyether polyol. Because the EO content in the polyether polyol is too low, the polyurethane foam produces fine cracks, and the desired polyurethane elastomer cannot be obtained.

Embodiment 1

[0106] In Example 1, polyether polyol Bayflex 0650 was selected to prepare polyurethane elastomer, and the polyether polyol was 30% EO-terminated polyether polyol. Due to the appropriate content and reasonable dosage of EO in polyether polyol, no cracks appeared in polyurethane foam. It can be seen that although a metal catalyst is not used, the polyether polyol with a reasonable amount of EO content and the special ratio between it and the amine catalyst maintain the good physical properties of the polyurethane elastomer.

Embodiment 1 and comparative Embodiment C2

[0108] In comparative example C2, the polyether polyol Bayflex 0650 with an appropriate EO content was selected, but the polymer polyol Arcol Polyol E851 with an appropriate acrylonitrile-styrene copolymer content was not used at the same time, resulting in small cracks in the polyurethane foam and failure to obtain Desired polyurethane elastomer.

[0109] In Example 1, polyether polyol Bayflex 0650 with appropriate EO content and polymer polyol Arcol Polyol E851 with appropriate acrylonitrile-styrene copolymer content were selected to prepare polyurethane elastomer, and no cracks appeared in the polyurethane foam. It can be seen that although no metal catalyst is used, the special ratio between polyols and between polyols and amine catalysts maintains the good physical properties of polyurethane elastomers.

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Abstract

The invention provides a polyurethane elastomer as well as a preparation method and the usage thereof. In the invention, the metal catalyst which is generally used in the industry at present is not needed, instead, the ratio between polylols in use and that between the polylols and amine catalyst determine the catalysis balance between foaming reaction and gel reaction in the process of preparing the polyurethane elastomer. While the polyurethane elastomer with an expected density is obtained, other physical properties of the polyurethane elastomer are also maintained. Besides, extra toxicological and economic advantages are achieved. The polyurethane elastomer is in particular suitable for the preparation of soles or other applications.

Description

technical field [0001] The invention relates to a polyurethane elastomer and its preparation method and application, in particular to a polyurethane elastomer without using a metal catalyst and its preparation method and application. Background technique [0002] In the traditional polyurethane elastomer reaction system, the addition of metal catalysts helps to promote the foaming reaction and gel reaction between the isocyanate component and the components that react with the isocyanate component. For example, CN1549835A provides a kind of polyurethane elastomer, at least one kind of organic titanium and / or zirconium compound, one kind of organic carboxylate lithium salt, one kind of organic acid bismuth salt are optionally added in the composition of preparation of this polyurethane elastomer as catalyst. As another example, CN1884334A provides a polyurethane elastomer. The components for preparing the polyurethane elastomer include at least one organic titanium compound,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/78C08G18/66C08G18/18A43B13/04
CPCC08G18/4072C08G2410/00C08G2101/0083C08G18/10C08G2101/0066C08G2110/0066C08G2110/0083C08G18/6564C08G18/40
Inventor 关永坚茹轩瓦张剑
Owner 拜耳材料科技贸易(上海)有限公司
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