Study of Shape Memory Nanofibre Nonwoven Fabrics
Polyurethane nanofibres having shape memory effect is a novel smart material.Shape memory polyurethane (SMPU) nonwoven fabrics composed of nanofibres with a diameter in a range of 200 to 400nm were successfully prepared by electro-spinning method in this work.The SEM images show that the nanofibre nonwoven fabrics have an interconnected fibrous network structures containing a lot of pores;and the cyclic tensile test shows that the obtained SMPU nonwoven fabrics exhibit good shape memory effect,i.e.,98％ shape recovery and 80％ shape fixity.Furthermore,the water vapor permeability (WVP) has been investigated using DMPC technique;and the results indicate that the SMPU nanofibre nonwoven fabrics have the typical WVP properties of micro-porous materials: water vapour resistance increases with the relative humidity;and the water vapour transport is lower at high relative humidity.Thus,it suggests that the SMPU nanofibre nonwoven fabric is expected to be a good candidate for the waterproof,breathable fabrics.
Shape memory Nanofiber Nonwoven fabric Water vapor permeability
Haitao Zhuo Jinlian Hu Shaojun Chen Yong Zhu
Institute of Textiles and Clothing,the Hong Kong Polytechnic University,Hung Hom,Kowloon,Hong Kong,China
国际会议
杭州
英文
2008-10-15（万方平台首次上网日期，不代表论文的发表时间）