户内平面用高流平β-羟烷基酰胺固化聚酯树脂的合成及应用研究  

Synthesis and Application of High-flowβ-hydroxyalkylamide-cured Polyester Resin for Indoor Flat Surfaces

作　　者：王佰佳 廖萍 邵妃 WANG Bai-jia;LIAO Ping;SHAO Fei(New Sino-French Polymer Material Co.,Ltd.,Huzhou 313300,Zhejiang,China)

机构地区：[1]新中法高分子材料股份有限公司,浙江湖州313300

出　　处：《中国涂料》2024年第8期45-52,58,共9页China Coatings

摘　　要：介绍了一种户内平面用高流平β-羟烷基酰胺(HAA)固化聚酯树脂的合成方法及其在粉末涂料涂层中表现。探讨了不同聚酯树脂的合成配方及工艺对于聚酯理化指标及涂层性能的影响,通过红外光谱(FITR)分析了聚酯的微观结构,利用凝胶渗透色谱仪(GPC)获得了一系列聚酯树脂的分子量及其分布,并通过扫描电子显微镜(SEM)观察了涂层的断面形貌。结果表明:n(EG)∶n(DEG)为2.774∶1,NPG占酯化醇物质的量比为55%,PTA作为酯化酸,ADA与IPA共同作为封端剂,其中ADA占单体总量1.8%(质量分数)时合成的聚酯树脂,其粉末涂层具有优异的流平性能和机械性能,50 kg·cm正、反冲击均可通过。This paper describes the synthesis of a high-flowβ-hydroxyalkylamide(HAA)-cured polyester resin for indoor flat surfaces and its performance in powder coatings.The effects of different polyester resin synthesis formulas and processes on the physicochemical indexes of the polyester and the coatings performance were investigated.The microstructure of the polyester was analyzed by infrared spectroscopy(FITR),the molecular weights of a series of polyester resins and their distributions were obtained by using gel permeation chromatography(GPC),and the cross-sectional morphology of the coatings was observed by scanning electron microscopy(SEM).The results showed that the powder coatings of polyester resin synthesized at a n(EG)∶n(DEG)ratio of 2.774∶1,with NPG accounting for 55%of esterified alcohols(molar ratio),PTA as the esterifying acid,and ADA together with IPA as the capping agent,in which ADA accounted for 1.8%of the total monomers,had excellent levelling and mechanical properties,and could pass both 50 kg·cm positive and negative impacts.

关 键 词：聚酯树脂 Β-羟烷基酰胺 高流平 粉末涂料 

分 类 号：TQ630.493[化学工程—精细化工]