聚氨酯体系中异氰酸酯基含量测定的改进研究

摘要

综合评述了化学分析法、分光光度法、红外光谱法、气相色谱法和高效液相色谱法等5种测定聚氨酯中-NCO含量的方法及其优缺点，并对一些测定方法的改进措施进行了分析评价。%The advantages and disadvantages of the five methods to determine the isocyanate groups content in polyurethane system,including chemical analysis,spectrophotometry,FTIR,GC and HPLC were commented in this paper,and some improved measures for determination methods were analysed and evaluated .