经编针织物增强塑料布纱切现象的研究

A Research on "Yarn Cut" Phenomenon of Reinforced Plastic Film with Bi-Axial Warp Knitted Skeleton

以双轴向经编针织物为骨架的增强塑料布受力时容易出现纱切现象,使增强塑料布的使用功能降低。经研究,骨架材料的凹凸不平,使外层塑料薄膜在复合中形成弱环,从而导致应力集中,是增强塑料布产生纱切现象的主要原因。建议在编织骨架材料时,原料的选择及织物组织设计应尽可能保证布面平整;基质含量的体积百分率应与基布的凹凸程度相匹配。

The reinforced plastic film with bi-axial warp knitted skeleton often appears 'yarn cut' phenomenon under a stress, which will weaken the film. The phenomenon is studied in this paper and the results show that the main cause of it is stress concentration in the weak link of the resin caused by rough surface of the skeleton fabric. It is suggested that the surface of skeleton fabric should be smooth by choosing rational types of yarn and fabric structures, and the content of resin should match skeleton fabric.