阻燃水性聚氨酯的制备及对涤纶织物涂层研究  

Preparation of flame retardant waterborne polyurethane and its coating for polyester fabric

作　　者：杨陈[1,2] 赵丽雪 林燕萍 YANG Chen;ZHAO Lixue;LIN Yanping(Jiangxi Institute of Fashion Technology,Nanchang 330201,China;Jiangxi Modern Clothing Engineering Technology Research Center,Nanchang 330201,China)

机构地区：[1]江西服装学院,南昌330201 [2]江西省现代服装工程技术研究中心,南昌330201

出　　处：《中国塑料》2024年第12期72-76,共5页China Plastics

基　　金：江西省教育厅科学技术重点研究项目(GJJ2202802)。

摘　　要：以阻燃聚酯多元醇为磷源对水性聚氨酯阻燃改性,并对改性的阻燃水性聚氨酯乳液、膜及其涂层涤纶织物进行性能表征。结果表明,改性引入的阻燃聚酯多元醇已完全参与了对水性聚氨酯的阻燃改性;当含磷量低于5%时,阻燃水性聚氨酯乳液呈半透明至乳白色,粒径低于100 nm,离心稳定性较好;随着含磷量的增加,阻燃水性聚氨酯膜的吸水率、力学性能及裂解温度有所降低,质量残存率有所上升;含磷量为3%时,其涂层涤纶织物已达到难燃级别;分析认为:利用阻燃水性聚氨酯涂层涤纶织物进行阻燃整理具有可行性。Waterborne polyurethane(PU)was modified with flame-retardant polyester polyol as a phosphorus source,and the properties of the resultant modified waterborne PU emulsion,film,and coated polyester fabric were character-ized.The results indicated that the flame-retardant polyester polyol as a modifier was completely participated in the flame-retardant modification of waterborne PU.When the phosphorus content was less than 5 wt%,the flame-retardant water-borne PU emulsion presented an aspect from translucent to milky white,its particle size was less than 100 nm,and its centrifugal stability was good.The waterborne PU film exhibited a decrease in the water absorption rate,mechanical properties and cracking temperature with an increase in the phosphorus content,but its mass retention rate increased.The coated polyester fabric reached a nonflammable level at a phosphorus content of 3 wt%.The mechanism analysis in-dicates that it was feasible to finish polyester fabric with the flame-retardant waterborne PU coating.

关 键 词：水性聚氨酯 粒径 分子结构 热失重 力学性能 吸水性能 阻燃性能 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]