【摘要】 本文介绍了ＤＵ－聚氨酯树脂合成中的三种控制方法（二正丁胺法、红外光谱法、粘度法）。并探讨了异氰酸基（－ＮＣＯ）含量与－ＮＣＯ特征峰强度变化的关系及异氰酸基（－ＮＣＯ）含量与粘度的关系。更多还原

【Abstract】 control methods in the synthesis of Polyurethane Resin DU (namely di - nbutylamine , mfra - red spectrum and viscosity) have been introduced in this paper.Relations between- NCO contents and the changes of NCO characteristic peakhave been studied and , at the same time , the relations between- NCO contents andthe viscosity also discussed.更多还原