polyurethane-25
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类别 Category:binding agents
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笔记 Notes: 聚氨酯25是通过二羟基聚氧丁烯的反应形成的复合物聚合物(聚合度12-30) Polyurethane-25 is a complex polymer formed by the reaction of dihydroxypolyoxobutylene (degree of polymerization 12-30), 二羟甲基丙酸 dimethylol propionic acid, 间四亚甲基二甲苯二异氰酸酯 meta-tetramethylenexylenediisocyanate, 异佛尔酮二异氰酸酯和三甲酰基丙烷。预聚物用三乙胺中和并用c1-8烷基二胺扩链 isophoronediisocyanate and trimethoylpropane. The prepolymer is neutralized with triethylamine and chain extended with C1-8 alkyl diamine
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