摘要
简单介绍了低残余甲苯二异氰酸酯(TDI)单体的聚氨酯(PU)预聚体的制备方法,并对残余TDI单体的分离方法进行了讨论,说明采用分子蒸馏法对预聚体中游离TDI单体进行分离处理,能得到低残余TDI单体预聚体。
The producing method of polyurethane prepolymer with low residual toluene diisocyanate was introduced briefly. The method of removing residual toluene diisocyanate in polyurethane prepolymer was also discussed. The prepolymer which had low residual TDI monomer was prepared by removing the free TDI in prepolymer with molecular distillation.
出处
《聚氨酯工业》
北大核心
2009年第4期5-8,共4页
Polyurethane Industry
关键词
聚氨酯预聚体
薄膜蒸发器
分子蒸馏
polyurethane prepolymer
thin film evaporator
molecular distillation
