英语语法分析

One of applications of rosin in PU paint is rosin ester resin modified polyisocyanate prepolymer.

松香酯树脂改性多异氰酸酯预聚物是松香在PU涂料中应用的一个途径。

The IR spectra for prepolymer, blocked prepolymer and blocked prepolymer decomposed by heating are compared.

对封闭前后和加热解封后的红外图谱作了比较。

The effects of the amounts of three blocking agents, temperature and time on blocking reaction for prepolymer are discussed.

讨论了三种封闭剂不同加量、 温度和时间对聚氨酯预聚体封闭反应的影响。