A. F. AU - Mazher, J. AU - Ibrahim，采用低温更环保的溶胶-凝胶法制备了zno基层状双氢氧化物(LDH)纳米颗粒。对不同退火温度下的颗粒进行了x射线衍射(XRD)研究。生长状态下的LDH颗粒呈六方晶体结构。在250℃退火后，晶体结构被修饰为层状双氧化物(LDO)的四方结构。Rietveld接头在热处理过程中出现了沿LDH粒子择优取向的层间分离距离的减小。进一步，用LDH粒子作为静电纺聚乙烯醇(PVA)纤维的填料。在不同温度下对聚合物纤维进行热处理，并通过热重分析(TGA)、拉曼光谱(Raman)和扫描电镜(SEM)技术研究了纤维的热变化。纤维与LDH纳米颗粒的相互作用得到了改善，这归因于在较高的温度下LDH相关的LDO相变。通过与纯PVA纤维失重的对比，探讨了填充纤维快速失重的热机理。 Experimental Raman frequencies of the composite fibers were compared with the calculated Raman modes of the enol and ZnO monomers. The molecular vibration frequencies were found to differ significantly due to heat treatment. Finally, the role filler in the faster and greener thermal decomposition of polymeric fibers was also discussed in the present work. SN - 1687-9422 UR - https://doi.org/10.1155/2020/8858138 DO - 10.1155/2020/8858138 JF - International Journal of Polymer Science PB - Hindawi KW - ER -