松香直接改性低游离TDI多异氰酸酯预聚物  

Rosin Directly-Modified Polyisocyanate Prepolymer with Low Free-TDI Content

作　　者：方旭升[1] 

机构地区：[1]北方涂料工业研究设计院,兰州730020

出　　处：《现代涂料与涂装》2009年第8期1-4,7,共5页Modern Paint & Finishing

摘　　要：松香可以通过其分子上的—COOH与TDI分子上的—NCO的反应接枝到多元醇/TDI多异氰酸酯预聚物分子链上,这种以松香直接改性的预聚物成本较低,涂刷性优良,并且游离TDI含量较低。文中对其反应原理、配方设计、工艺特点、产品技术指标、应用性能等进行了探讨。Rosin is grafted on the polyol/TDI polyisocyanate prepolymer by the reaction of-COOH group in rosin with -NCO group in TDI. This prepolymer directly modified by rosin has the advantages of low cost, good brushability, and low free-TDI content. This paper discusses the reaction principle, formulation design, process features, technical specifications, application performance and etc.

关 键 词：松香 多异氰酸酯 预聚物 游离TDI 

分 类 号：TQ633[化学工程—精细化工]