Comfortable sole with slow resilience and preparation method of sole

Abstract

The invention discloses a comfortable sole with slow resilience. The comfortable sole with the slow resilience comprises the following components in parts by weight: 30-50 parts of diisocyanate, 30-50parts of a small molecule polyol, 5-15 parts of a polyol, 3-5 parts of a crosslinking agent, 1-5 parts of a foaming agent, 0.1-0.5 part of a catalyst. The polyol is a polymer of 4-amino-4-(3-hydroxypropyl)-1, 7-heptanediol, 2-n-pentylpropane-1, 3-diol, adipic acid and triethylene glycol divinyl ether. According to the comfortable sole with the slow resilience, the polyalcohol can react with the diisocyanate, and by a polymer chain segment, the integral material has the characteristic of slow resilience in actually produced sole products.

Description

technical field

[0001] The invention relates to a polymer material, in particular to a slow rebound comfortable sole. Background technique

[0002] Shoes are a necessary product for human life, and with the continuous development of human civilization, the types of shoes are constantly enriched, such as casual shoes, sports shoes, canvas shoes, chemical shoes, sandals, slippers, medical shoes and safety shoes, etc. All kinds of shoes. As sole materials for these shoes, natural materials such as leather, rubber, polyvinyl chloride, and polyurethane or synthetic materials are widely used. From a lightweight point of view, polyurethane materials have been widely used due to their advantages over other materials such as low density and bending resistance; however, with the development of modernization, people's requirements for shoe soles are also getting higher and higher. Ordinary polyurethane material soles are limited by the material itself. When deformation occurs, the re...

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