Abstract

Fibrous construction and combination of different fine/coarse fibres, bonding techniques and the directional arrangement of fibres are the significant performance parameters of the unique characteristics in nonwovens and their composites applications in filtration products. After the ceramic/glass fibre needle-punched nonwoven characterisation, the diagonal stitch bonding made with PTFE-coated glass yarn on the nonwoven which influenced more on the tensile properties increased by 1.91–2.36 times than their initial strength and this is mainly due to the glass yarn which supporting the nonwoven fabric reducing the glass fibre slippage. The bursting strength significantly increased in a range of 1.4–1.6 times comparatively lower than tensile strength improvement where this minimal increase due to testing sample parameters where the glass fibre length itself supported the bursting strength 40 mm diaphragms. Further, to improve the tensile properties of the optimised samples, they were stitch bonded with 200 Denier glass fibre yarn diagonally at 10 mm intervals and analysed for their tensile behaviours as well as their physical and filtration characteristics.

摘要

纤维结构和不同细/粗纤维的组合、粘合技术和纤维的定向排列是无纺布及其复合材料在过滤产品中的独特特性的重要性能参数。在陶瓷/玻璃纤维针刺非织造布表征之后，在非织造布上用 PTFE 涂层玻璃纱制成的斜缝粘合对拉伸性能的影响比其初始强度增加了 1.91-2.36 倍，这主要是由于支撑无纺布的玻璃纱，减少玻璃纤维的滑动。爆破强度在 1.4-1 范围内显着增加。由于测试样品参数的玻璃纤维长度本身支持 40 毫米膜片的爆破强度，因此抗拉强度提高比抗拉强度提高低 6 倍。此外，为了提高优化样品的拉伸性能，将它们与 200 旦尼尔玻璃纤维纱线以 10 毫米间隔对角线缝合，并分析它们的拉伸行为以及它们的物理和过滤特性。