论文标题
热处理模式和积极培养基对通过静电纺丝制造的多孔聚氟乙烯膜的机械性能的影响
Effect of Heat Treatment Mode and Aggressive Media on Mechanical Properties of Porous Polytetrafluoroethylene Membranes Fabricated via Electrospinning
论文作者
论文摘要
静电纺丝是产生多孔聚氟乙烯膜的扩展方法的现代替代方法。高强度和相对伸长率以及在高温下暴露于侵略性培养基时长时间维持这些特性的能力，确定了电纺上聚氟氟乙烯膜的应用范围。在本文中，我们报告了在旋转溶液，热处理模式（淬火和退火）和高温下侵袭性培养基中聚氟乙烯悬浮液含量对电气传播强度和相对延伸的影响。从经过50至60 wt％的聚甲基悬浮液含量的旋转溶液中制造的膜，以最高的拉伸强度和相对伸长的速度来表征。电纺聚氟乙烯膜还表现出对浓矿酸和碱的耐化学性较高，这是一种在100度的双极抗毒剂，发动机油和去离子水48小时的耐化学性。
Electrospinning is a modern alternative to the expanded method for producing porous polytetrafluoroethylene membranes. High strength and relative elongation, as well as the ability to maintain these properties for a long time when exposed to aggressive media at high temperatures, determine the application scope of the electrospun polytetrafluoroethylene membranes. Herein, we report the effect of polytetrafluoroethylene suspension content in the spinning solution, heat treatment mode (quenching and annealing) and aggressive media at high temperatures on the tensile strength and relative elongation of electrospun polytetrafluoroethylene membranes. Membranes fabricated from spinning solutions with 50 to 60 wt % polytetrafluoroethylene suspension content that underwent quenching were characterized by the highest tensile strength and relative elongation. Electrospun polytetrafluoroethylene membranes also demonstrated high chemical resistance to concentrated mineral acids and alkalis, a bipolar aprotic solvent, engine oil and deionized water at 100 deg for 48 hours.
