银纳米线改性棉织物的制备及其性能

为提高棉织物附加值并改善其对改性成分的吸附性,首先利用高碘酸钠氧化处理以增加棉纤维的粘结性,然后采用一步多元醇还原法,在160℃条件下制备银纳米线(AgNWs)并分散到无水乙醇中,以棉织物为基底,采用浸渍—烘干法将AgNWs整理到棉织物表面.对AgNWs的形貌、长度、直径及结晶结构进行了测试与表征,并分析了整理后棉织物...

Preparation and properties of cotton fabric modified by silver nanowires

In order to increase the added value of cotton fabrics and improve its adsorption to modifying components, sodium periodate was used for oxidation treatment to increase the adhesion of cotton fiber. Silver nanowires (AgNWs) were then prepared by one-step polyol reduction method at 160 ℃ and dispersed in anhydrous ethanol. With a cotton fabric as the substrate, AgNWs was finished on the surface of the fabric by the impregnation drying method. The finished cotton fabric was characterized, and its UV resistance, conductivity and washing resistance were tested. The results show that with the increase of AgNWs concentration, the electrical conductivity of the fabric increases by more than 80%. When the AgNWs concentration is 10 g/L, the UV protection factor (UPF) value reaches 55, and the UV transmittance is reduced to less than 2.5%. The washing resistance of the modified cotton fabric is improved by 20% after the oxidation treatment, and the UPF value of the modified fabric after three times of washing reaches 46.51. The flexible conductive cotton fabric can be applied to flexible electronic textiles and anti ultraviolet products.