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US 2025/0282950 A1Published application
Polyurethane composite material with embedded liquid healing network and preparation method therefor
AssigneeChina Academy of Machinery Wuhan Research Institute of Materials Protection Co. Ltd.
InventorsJun WU, Lulu LIU, Jiangfeng AN, Hao CHEN, Zhijian CHEN, Ying HU, Penghua ZHENG
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Abstract
A polyurethane composite material with an embedded liquid healing network and a preparation method therefor are provided. The polyurethane composite material is composed of 40-60 parts of a polyurethane prepolymer. 5-20 parts of healing agent carrier particles. 10-30 parts of a liquid healing agent, and 0.1-1 parts of a dispersant.
Claims13
A polyurethane composite material with an embedded liquid healing network, comprising following raw materials in parts by weight:
- a polyurethane prepolymer 40-60 parts, healing agent carrier particles 5-20 parts, a liquid healing agent 10-30 parts, and a dispersant 0.1-1 parts,
- wherein the polyurethane prepolymer is prepared by mixing isocyanate and polyol in a molar ratio of 1.8-2.2:1 under catalyzing of a catalyst;
- and
- the liquid healing agent is prepared by mixing epoxy resin and thiol in a mass ratio of 1-4:1.
1 more element
Dependencies are inferred from the claim text.