摘要
以聚醚(N-210)、甲苯二异氰酸酯(TDI)为基本单体,以含磷多元醇(OP550)和N'N-双(2-羟甲基)氨基乙基膦酸二甲酯(Fyrol-6)分别作为软、硬段阻燃扩链剂,合成了软、硬段共改性含磷水性聚氨酯(FOWPU)。通过红外光谱测试表征了FOWPU分子链结构;经过透射电镜、激光粒度测试仪测试了乳胶粒子形态及乳液粒度分布;测试并讨论了乳液黏度、乳胶膜吸水率和力学性能与阻燃剂添加量的关系。研究表明,软、硬段共改性的FOWPU,乳液粒度分布均匀,稳定性好,乳胶膜阻燃性好,吸水率随阻燃剂添加量增加而降低,表现了良好的耐水性,但同时乳胶膜的力学性能有所下降。
A novel soft segment and hard segment co-modified waterborne polyurethanes（ FOWPU） was synthesized with Exolit OP550 and N＇ N-bis（ 2-hydroxymethyl） aminoethyl phosphonic acid dimethyl ester（ Fyrol-6） reacted with toluene diisocynate,and the structure of FOWPU was characterized by FT-IR. Transmission electron microscopy was utilized to observe the morphology of FOWPU disperion particles. The stability,the viscosity,the water absorption,and the mechanical properties were tested respectively. The results show that the particles in the latex are found to be uniformly-distributed,and the FOWPU emulsion is good in stability. At the same time,with the increase of flame retardant contents,the co-modified polyurethane possesses better performances in water absorption and flame resistance,but the mechanical properties of the materials are decreased.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2015年第8期1-5,共5页
Polymer Materials Science & Engineering
关键词
水性聚氨酯
阻燃改性
合成
性能
waterborne polyurethane
flame retardant modified
synthesis
performance
