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Development of 2K Waterborne Polyurethane Wall Finish
Author(s): 
Pages: 16-20
Year: Issue:  9
Journal: Paint & Coatings Industry

Keyword:  双组分水性聚氨酯墙面漆;
Abstract: 采用羟基丙烯酸分散体与亲水性多异氰酸酯配漆,制备了双组分水性聚氨酯墙面漆.研究发现,采用水性丙烯酸分散体Bayhydrol 2542和Bayhydrol 2546混拼作为树脂组分,水性多异氰酸酯Bayhydur XP 2547作为固化剂组分,可以制备各方面性能良好的墙面漆.同时研究了不同羟基含量、不同n(—NCO):n(—OH)、助剂对漆膜性能的影响.结果表明:羟基含量为1.4%,n(—NCO):n(—OH)控制在1.50 ~ 1.80,选用有机硅消泡剂与聚硅氧烷-聚醚类脱泡剂,用量为0.5%,分散剂用量为0.75%时,可以得到兼有良好耐沾污性、耐水性和低温稳定性的产品.
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