摘要
将形状记忆水性聚氨酯用不同的硅烷偶联剂和端羟基硅油进行改性,并研究其改性前后的性能。结果表明:当硅烷偶联剂的质量分数为1%时,材料具有良好的力学性能、形状记忆性能和耐水性能;改性后,材料的形状固定率均为100%,形状回复率为96%以上;经硅烷偶联剂KH570改性的形状记忆水性聚氨酯的拉伸强度为49.96 MPa,较未改性体系提高了18.42%;端羟基硅油改性使材料质量损失50%的温度从370.21℃提高到378.13℃。
The shape-memory waterborne polyurethane(PU)was modified with different silicane coupling agents and hydroxyl-terminated silicone oil and whose performances before and after modification were tested.The results show that the material performs excellently in mechanical properties,shape memory and water resistance when the mass fraction of silicane coupling agent is 1%.The shape fixation rate is 100%,the shape recovery rate is more than 96%after modification.The tensile strength of shape-memory waterborne PU modified by KH570 reaches 49.96 MPa,18.42%higher than that of unmodified system.The 50%weight loss temperature of the material modified by hydroxyl-terminated silicone oil is increased from 370.21 to 378.13℃.
作者
官慧
艾娇艳
卢子铿
卢杨陆
林洁明
Guan Hui;Ai Jiaoyan;Lu Zikeng;Lu Yanglu;Lin Jieming(Faculty of Material and Energy,Guangdong University of Technology,Guangzhou 510006,China)
出处
《合成树脂及塑料》
CAS
北大核心
2018年第1期20-22,29,共4页
China Synthetic Resin and Plastics
关键词
水性聚氨酯
有机硅
形状记忆
改性
waterborne polyurethane
organo silicon
shape memory
modification
