摘要
通过静电纺丝技术制备PVDF/PVDF-HFP复合纳米纤维膜,然后对其进行热压处理,采用FE-SEM对其形貌进行表征,并对其力学性能和防水透湿性能进行评价.结果表明:PVDF和PVDF-HFP溶液的最佳纺丝质量分数分别为9%和12%;热压处理后PVDF/PVDF-HFP复合纳米纤维膜具有优异的防水透湿性能,当复合纳米纤维膜中PVDF与PVDF-HFP的质量比为2∶1时,其耐静水压达到7 220 mm H2O,透湿量达到7 300 g/(m2·24 h).
Poly（vinylidene fluoride）/Poly（vinylidene fluoride-co-hexafluoropropylene） composite nanofiber membrane was prepared by electrospinning, followed by thermal calendaring process. The morphology of the membrane was characterized by FE-SEM, and the mechanical property and waterproof-breathable property were evaluated. The results indicate that the best solution concentration of PVDF and PVDF-HFP are 9% and 12% respectively. PVDF/PVDF-HFP composite nanofiber membrane possesses excellent waterproof-breathable property after thermal calendaring. When the mass ratio of PVDF and PVDF-HFP is 2 ： 1 in the composite nanofiber membrane, the hydrohead of membrane achieves to /220 mmH20 and water vapor transmission rate amounts to 7 600 g/（cm^2· 24 h）.
出处
《天津工业大学学报》
CAS
北大核心
2014年第6期6-10,共5页
Journal of Tiangong University
基金
国家自然科学基金项目(51373121)
关键词
防水透湿
静电纺丝
复合纳米纤维膜
力学性能
耐静水压
waterproof ＆ breathable
electrospinning
composite nanofiber membrane
mechanical property
hydrohead
