水性聚氨酯基对位芳纶纤维增强复合带的制备与性能  

Preparation of Para-aramid Fiber-Reinforced Composite Tape and Its Performance

作　　者：南建举[1,2] 于俊荣[1,2] 朱加尖[1,2] 胡祖明[1,2] 陈蕾[1,2] 诸静[1,2] 

机构地区：[1]东华大学高性能纤维及制品教育部重点实验室,上海201620 [2]东华大学纤维材料改性国家重点实验室,上海201620

出　　处：《东华大学学报（自然科学版）》2011年第3期299-304,309,共7页Journal of Donghua University(Natural Science)

摘　　要：在不同的工艺条件下制备水性聚氨酯基对位芳纶纤维增强复合带,并对制备的纤维复合带进行力学性能测试,从而寻求最佳工艺条件.运用Weibull统计方法研究不同工艺条件下制备的芳纶复合带的统计应力和形状参数,用以表征复合带的断裂强度及断裂强度分散性.综合考虑确定当处理温度为180℃,砝码压力为19.6 MPa,走丝速度为0.36 m/min时,制备的复合带性能最佳.The para-aramid fiber reinforced composite tapes were prepared with water-borne polyurethane（PU） matrices under different processing conditions.The mechanical performance of the tapes was determined in order to search for the optimal process condition.The mechanical results of the composite tapes were analyzed by using Weibull statistics,the statistical stress and size parameter were used to characterize the tensile strength and its deviation.The optimal heating temperature was 180℃,the optimal pressure for the tape formation was 19.6MPa,and the optimal speed of fiber passing through the heating box was 0.36m/min.

关 键 词：对位芳纶纤维 水性聚氨酯 复合带 Weibull统计 

分 类 号：TQ327.9[化学工程—合成树脂塑料工业]