Reflective materials with good night visibility can play a role in safety protection in dark environments and they are currently widely used in the field of special workwear.In order to assess the safety of glass bead reflective materials,they were taken as samples for analyzing the influence of sweat on the performance of reflective materials.Samples were subjected to 1,5,10,20,25,30,40 and 50 times with acid and alkali sweat aging.The surface characterization,color difference,microstructure and coefficient of retro-reflection were analyzed.The results show that the specimen has different degrees of glass beads fall off,aluminum layer dissolution,and surface salt crystal precipitation,resulting in decreased performance of reflective materials.Coefficient of retro-reflection decreased when the number of sweat aging times was＞5 times.The effect of acid sweat aging on the performance of reflective materials was higher than that of alkali sweat aging.The retro-reflection coefficient of the samples decreased by 2.97%-12.86%after acid sweat aging with 50 times.
关键词
反光材料/玻璃微珠/汗液老化/逆反射系数
Key words
reflective material/glass bead/sweat aging/coefficient of retro-reflection
维普
万方数据