粘合剂对纳米纤维膜复合织物性能的影响

Effects of binders on properties of composite fabrics with nanofibers

为提高纳米纤维复合织物的服用性能及界面结合性能,利用等离子体技术对相变/PAN纳米纤维膜进行预处理,通过动态接触角测试确定了最佳等离子体处理条件;重点研究了织物复合时低温热熔网膜胶、纤维丝胶和气凝胶3种不同特性的粘合剂对复合织物的保温性、透气透湿性及力学性能的影响.结果表明:等离子体处理相变/PAN纳米纤维膜的最佳参数为功率120 W,处理速率80 mm/s;使用气凝胶粘合的复合织物保温性能最佳,传热系数12.37 W/(m^2·℃),降温系数39.26%,克罗值0.521(0.155℃m^2/W);低温热熔网膜胶粘合的复合织物表现出较高的透气性、透湿性效果及界面结合性能,透气率11.42 mm/s,透湿量17 010.2g/(m^2·d),剥离强力53.75 c N;粘合剂在织物界面的形貌结构和分布状态是复合织物性能的关键影响因素.

In order to improve the properties of wearability and the quality of interface adhesion of composite fabric with nanofibers, plasma treatment was used as preprocess, and the optimal parameter of plasma treatment was decid-ed by the dynamic contact angle test. It was carefully studied the effects of three different binders i.e. melting ad-hesive film using low temperature, fibrous binder and aerogel on the heat preservation property, the air perme-ability and water vapor permeability, as well as the mechanical property of composite fabrics. The results showed that the optimal parameter of plasma treatment is power 120 W and treating speed 80 mm/s;the best heat preser-vation property was obtained by using aerogel as the binder, and the heat transfer coefficient of composite fabric is 12.37 w/（m^2·℃）, the thermal insulation coefficient is 39.26%, and%CLO value is 0.521（0.155℃m^2/W）;the excellent air permeability and water vapor permeability properties and the high quality of interface adhesion of composite fabric were obtained by using melting adhesive film, and the air permeability rate of composite fabric is 11.42 mm/s, water vapor permeability 17 010.2 g/（m^2·d）, and the peeling strength 53.75 cN;what′s more, it is discovered that the morphologic structure and distribution of the binder in the interface are the main influence factors on the properties of composite fabric.