摘要
采用流延法制备了聚偏氟乙烯(PVDF)/聚甲基丙烯酸甲酯(PMMA)/二氧化钛(TiO2)共混膜,利用红外光谱仪、X射线衍射仪、示差扫描量热仪研究了流延膜的结晶行为。结果表明,PVDF同时存在α、β两种晶型,PMMA、TiO2均能促使PVDF晶型从α晶向β晶转变。加入的PMMA增加了共混膜的非晶性,降低了PVDF的结晶度;TiO2亦能抑制PVDF结晶,降低体系的熔融温度。
The PVDF/PMMA/TiO2 membrane was made by casting method.The crystallization of membrane was studied by infrared spectrometer,x-ray diffractometer and differential scanning calorimetry.The results showed that PVDF had two crystal forms α and β.The existence of PMMA and TiO2 can transform PVDF＇s crystal from α to β.The addition of PMMA increased amorphous of the blend and the PVDF crystallinity reduced.TiO2 also reduced the crystallinity and then it could reduce melting temperature of the membrane.
出处
《塑料工业》
CAS
CSCD
北大核心
2014年第8期77-80,共4页
China Plastics Industry
关键词
聚偏氟乙烯
聚甲基丙烯酸甲酯
二氧化钛
薄膜
结晶行为
Polyvinylidene Fluoride
Polymethyl Methacrylate
Titanium Dioxide
Membrane
Crystallization Behavior
