微波原位合成纳米磷酸锌及其在棉织物抗紫外线整理中的应用

采用廉价易得的硝酸锌和磷酸二氢钠，通过微波辅助原位合成磷酸锌对棉织物进行抗紫外整理。论文首先对制备磷酸锌的原料和干燥温度进行了讨论，并采用XRD对其结构进行了表征。结果表明，干燥温度对结晶水个数有所影响，但不影响磷酸锌的结构。论文分别讨论了硝酸锌和磷酸二氢钠的浓度、微波加热温度和时间、焙烘温度和时间等因素对抗紫外性能和白度的影响。结果表明，棉织物的抗紫外性能随着磷酸锌浓度的增大而增强；随焙烘温度和焙烘时间的延长,织物的UPF值也逐渐增加。采用SEM对整理后棉纤维表面形态的变化进行了表征。

Microwave-assisted in-situ synthesis and application of nano zinc phosphate in UV-resistance finishing of cotton fabric

UV-resistance cotton fabric was prepared by microwave-assisted in situ synthesis of zinc phosphate using cheap Zn(NO3)2 and NaH2PO4. The source of zinc and phosphate and drying temperature were first discussed. The structure of Zn3(PO4)2 was characterized by XRD. The results showed that the drying temperature only changed the number of crystal water instead of the structure of Zn3(PO4)2. The effect of concentration of Zn(NO3)2 and NaH2PO4, microwave heating temperature and time, curing temperature and time on the UV-resistance properties and whiteness value of cotton fabric was investigated. It showed that the UV-resistance capabilities increased with the increase of the content of zinc phosphate. The UPF value also increased with the increase of the curing temperature and time. The surface morphology of treated cotton fiber was investigated by SEM.