摘要
以聚乙二醇(PEG)和二异氰酸酯为原料,通过测定—NCO的含量,确定了预聚反应的时间和温度,合成了聚醚型聚氨酯预聚体;对影响预聚体合成的因素:异氰酸酯的种类、n(—NCO)∶n(—OH)、二异氰酸酯的自聚、水分的含量以及预聚体的贮存稳定性等进行了研究。
The polyether - polyol polyurethane prepolymer was prepared with polyethylene glycol and diisocyanate. The reaction temperature and time are finalized according to the --NCO determination. The influence of the types of diisocyanate, the mole ratio of -NCO and --OH, self polymerization of diisocyanate, moisture content on reaction and storage stability of prepolymer were discussed.
出处
《涂料工业》
CAS
CSCD
2006年第7期34-37,共4页
Paint & Coatings Industry
关键词
聚醚
聚氨酯预聚体
合成
影响因素
polyether - polyol
polyurethane prepolymer
preparation
influencing factor
