urethane prepolymer的意思|示意

A theoretical model for the reaction kinetic of the urethane and branching reaction of polyurethane prepolymer is proposed.

提出一种新的测试聚氨酯预聚物合成反应过程中氨酯化反应和支化反应的动力学参数的理论模型 。

A solid product formed by polymerizing a urethane prepolymer in the presence of a curative has a Bashore rebound that is less than about 38%.

通过在固化剂存在下使氨基甲酸酯预聚物聚合而形成的固体产物具有小于大约38%的巴肖氏回弹。

Preferably, the urethane prepolymer is an aliphatic isocyanate polyether prepolymer and the curative includes an aromatic diamine and a triol.

优选地，该氨基甲酸酯预聚物是脂族异氰酸酯聚醚预聚物，且该固化剂包括芳族二胺和三醇。

To form a microcellular polyurethane material, the urethane prepolymer is frothed with inert gas, in the presence of a surfactant, then cured.

为了形成微孔聚氨酯材料，在表面活性剂存在下用惰性气体使该氨基甲酸酯预聚物发泡，随后固化。

Novel diisocyanates for PU coatings, development trend of urethane prepolymer for coatings are described in this article. The applications of PU coatings in various industries are also presented.

叙述了聚氨酯涂料用新型二异氰酸酯，涂料用异氰酸酯预聚物的发展趋势，聚氨酯涂料及其在各个领域的应用概况。