摘要
通过双向拉伸工艺制备聚四氟乙烯复合膜。SEM分析表明:与单向拉伸工艺相比,双向拉伸可以获得更高的孔隙率,较小的孔径和较高的孔隙率可以达到防水透湿性。实验结果表明:采用三水平、四因素正交设计,确定了最佳工艺条件:涂胶压力0.1MPa,干燥温度60℃,干燥时间10s,复合压力0.1MPa,得到水蒸汽透过率和剥离强度均较好的聚四氟乙烯复合膜产品。
PTFE composite film was prepared by biaxial stretching process. SEM analysis showed that biaxial stretching could get higher porosity compared with uniaxial stretching,the smaller pore size and higher porosity could meet the waterproof and permeability. The results indicated that the processing conditions, which were 0. 1 MPa coating pressure,60℃ drying temperature,lO s drying time and 0. 1 MPa composite pressure,could get the best properties of steam permeability and stripping.
出处
《塑料》
CAS
CSCD
北大核心
2009年第2期75-76,66,共3页
Plastics
关键词
双向拉伸
聚四氟乙烯
复合膜
防水
透湿性
biaxial stretching
PTFE
composite film
waterproof
permeability
