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Polyurethane microcellular foaming elastomer as well as preparation method and application thereof

A technology of microcellular foaming and polyurethane, which is applied in applications, shoe soles, clothing, etc., can solve the problems of easy breeding of bacteria and limited applications, so as to improve tear resistance and tensile performance, improve antibacterial performance, and not easy to agglomerate Effect

Active Publication Date: 2021-12-17
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polyester polyurethane foam has good mechanical properties and resilience properties, it has a certain polarity, so it is easy to breed bacteria
Therefore, also limit the application of polyurethane foam material in sole

Method used

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  • Polyurethane microcellular foaming elastomer as well as preparation method and application thereof
  • Polyurethane microcellular foaming elastomer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation of graphene oxide-supported silver nanoparticles:

[0049] Dissolve 3 grams of graphite powder (Aladdin Chemical) in 200 milliliters of concentrated sulfuric acid in an ice bath to form a suspension, add 3.6 grams of potassium nitrate to the suspension and stir for 30 minutes, then add 18 grams of potassium nitrate to the suspension under vigorous stirring Potassium manganate, the system was reacted at 35°C for 6 hours. Then, 250 ml of deionized water was added to the reaction system, and the reaction was stirred and reacted at 5° C. for 10 hours. Finally, 80 milliliters of hydrogen peroxide and 600 milliliters of deionized water were added to the reaction system to terminate the reaction. The obtained graphene oxide product was washed with hydrochloric acid solution and deionized water until the overall pH value of the system reached 7, and then freeze-dried to obtain a sample.

[0050] Dissolve 100 mg of graphene oxide prepared by the above method in 80 ...

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Abstract

The invention relates to the field of polyurethane foam for shoes, in particular to a polyurethane microcellular foaming elastomer as well as a preparation method and application thereof. The polyurethane microcellular foaming elastomer is prepared from the following components in parts by weight: 40-60 parts of polyester polyol, 30-40 parts of isocyanate, 0.1-1 part of a foaming agent, 0.1-1 part of a catalyst, 0.5-5 parts of a chain extender, 0.1-1 part of a polyurethane plasticizer, 0.1-1 part of a foam stabilizer and 0.1-2 parts of graphene oxide loaded silver nanoparticles. The tear resistance and tensile property of the obtained polyurethane microcellular foaming elastomer can be improved, and the antibacterial property of the polyurethane elastomer can be also improved.

Description

technical field [0001] The invention relates to the field of polyurethane foam for shoes, in particular to a polyurethane microcellular foamed elastomer and its preparation method and application. Background technique [0002] Polyurethane is a new type of organic multifunctional material, which is a general term for a class of macromolecular polymers with -NHCOO - repeating structural units prepared by the chemical reaction of isocyanates and polyols. In 1952, the German Bayer company took the lead in developing polyester-type flexible polyurethane foam and corresponding continuous production equipment, producing new materials with light specific gravity and high specific strength. Polyester-type flexible polyurethane foam has good strength, oil resistance, solvent resistance and oxidation resistance. [0003] It is precisely because of the above advantages that polyester microcellular elastomers are widely cited in the research of sole materials. The research on the appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/06C08L83/04C08K9/12C08K3/08C08J9/08C08G18/66C08G18/42A43B13/04C08G101/00
CPCC08J9/009C08J9/0061C08G18/42C08G18/664A43B13/04C08J2375/06C08J2483/04
Inventor 翁子骧吴立新杨智
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI