端羟基水性聚氨酯分散体的合成研究

Study on polymerization of aqueous hydroxyl-terminated polyurethane dispersion

采用羟基封端剂A,合成端羟基水性聚氨酯分散体,该分散体应用于双组分水性聚氨酯木器漆,研究了反应温度、聚酯多元醇、扩链剂等对产品性能的影响。配制成双组分水性聚氨酯木器清漆,测试了产品的硬度,附着力等技术指标。

Hydroxyl end-capping agent A is employed into the polymerization of aqueous hydroxyl-end polyurethane dispersion, which is applied in two-component aqueous polyurethane vanish. This article studies the effects on the performance of this dispersion by reaction temperature, polyester polyol, chain-extender, end-capping agent. Two-component aqueous polyurethane vanish formulated by this dispersion gives good workability. Hardness and adhesion are also determined.