氧化石墨烯对蚕丝的紫外线防护整理

UV protective finishing of silk fabric with graphene oxide

采用氧化石墨烯(GO)对蚕丝织物进行了紫外线防护整理,再对浸渍吸附GO的蚕丝织物(蚕丝-GO)进行还原得到了还原氧化石墨烯(RGO)整理蚕丝织物(蚕丝-RGO)。考察了蚕丝-GO和蚕丝-RGO的紫外线防护性能,并测试了蚕丝-RGO的抗紫外耐久性。采用SEM和拉曼光谱对蚕丝-RGO进行了表征。结果表明,蚕丝-RGO最佳制备工艺为:GO质量浓度为0.5 g/L,还原剂保险粉质量浓度为1 g/L,还原温度75℃,还原时间5 min。在上述条件下,蚕丝-RGO的UPF值为44.99,具有优异的紫外线防护效果;相同条件下,蚕丝-RGO的紫外线防护性能优于蚕丝-GO。经多次水洗后,蚕丝-RGO抗紫外性能略微降低,其优异的耐久性归因于沉积在蚕丝织物表面的RGO与蚕丝间的相互作用。

Finishing of silk fabric with graphene oxide(GO)for UV protection was first carried out,and the dipped and adsorbed GO silk fabric(silk-GO)was reduced to obtain reduced graphene oxide(RGO)finishing silk fabric(silk-RGO).Next,the UV protection performance of silk-GO and silk-RGO was investigated,while the UV protective durability of silk-RGO was also tested.Silk-RGO was characterized by SEM and Raman spectrum.The results showed that the optimum conditions for UV protective finishing process were as the following:GO mass concentration of 0.5 g/L,sodium hydrosulfite mass concentration of 1 g/L,reduction temperature of 75℃,and time of 5 min.Under the above-mentioned conditions,silkRGO had excellent UV protection effect with a UPF value of 44.99.The UV protection performance of silk-RGO,which almost remained unchanged even after several times of washing,was better than that of silk-GO at the same conditions.The excellent durability of silk-RGO was attributed to the interaction between the RGO deposited on the surface of the silk fabric and the silk.