摘要
研究了以聚氨酯预聚体为主要组分制成的密封剂中游离—NCO含量对其性能影响。
Study was made of the influence of flee -NCO contained in the sealant prepared with polyurethane prepolymer as its principal constituent on the sealant properties.
出处
《化学建材》
1998年第4期29-30,共2页
Chemical Materials for Construction
关键词
建筑密封剂
NCO含量
聚氨酯性能
building sealant, -NCO content, polgurethane property
