【摘要】 针对高性能纤维耐光性较差的现状,采用TiO2溶胶-凝胶涂层方法改善芳纶织物的耐光性。利用动态光散射激光粒度分析仪Nano ZS分析发现,制备的TiO2水溶胶粒子尺寸和分布都很均匀。利用U-4100紫外/可见/近红外分光光度计表征,对比涂层前后织物对光的透射、反射和吸收量,发现涂层后织物耐光性提高。同时,通过扫描电镜观察,涂层后在织物表面形成TiO2水溶胶-凝胶的连续膜结构,对光辐照有较好的屏蔽作用。更多还原

【Abstract】 Although high performance fibers possess higher thermal resistant properties,they show poor photostability.In this paper,a new method of sol-gel treatment was used to enhance the light-resistant properties of high performance aramid fabric.The size and distribution of TiO2hydrosol was very uniform by using Zetasizer Nanosizer.The fabric treated with TiO2hydrosol was characterized by U-4100 UV-visible-near infrared spectrometer and compared with its counterpart.The results showed that the light property(transmission,absorbance and reflection) of fabric treated with TiO2hydrosol was improved.Its SEM micrographs showed the continued film on the surface of the treated fabric,which has good blocking effect to the ultraviolet ray.更多还原