高透聚氨酯薄膜层压罗纹针织物服用性能研究

Research on the Performance of the High Waterproof and Moisture-Permeabiliy PU Film Laminated Rib Stitch Knitted Fabric

以2+2双罗纹针织物、热熔胶TPU和高透PU膜为原材料,采用层压复合的方法制备防水透湿复合织物,分析双罗纹针织物、高透PU膜及复合织物的拉伸性能、悬垂性、透气性,以及防水透湿效果,并通过改变TPU用量、温度及复合压力探讨对复合织物各项性能的影响。研究结果表明:双罗纹针织物与PU膜复合后,复合织物的强伸性有所提高,但悬垂性有所降低,防水效果明显比双罗纹针织物要好,透湿、透气效果比高透PU薄膜小一些。综合而言,当TPU用量为32 g/m2,复合压力为8 MPa,复合温度为80℃时,复合织物的复合效果最好。

The paper prepares a new kind of waterproof and moisture permeable composite knitted fabric by us-ing 2＋2 interlock fabric, hot melt rubber TPU and PU film as basic materials by laminated composite method. And it analyzes the tensile, the drapability, the air-permeability properties and the waterproof and moisture perme-able effect of 2＋2 interlock fabric, PU film and composite fabric, as well as the impacts of amount of TPU, com-posite temperature and pressure on the various performance of composite fabric. The results show that the tensile strength properties of composite fabric has improved but the drapability properties has actually lowered; the water-proof effect of composite fabric is better than interlock fabric obviously; while the air -permeability and moisture-permeability properties are worse than PU film. The composite effect of which can achieve the best under the amount of TPU of 32g/m2, the composite pressure of 8 MPa and the composite temperature of 80 ℃.