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中文摘要: 用共沉淀法制备油酸钾改性的Zn2+、Al3+层状双氢氧化物（Zn/Al-LDH），以环己酮为溶剂，用溶液插层法制备了Zn/Al层状双氢氧化物-聚氯乙烯(PVC)纳米复合物。采用傅里叶红外（FT-IR）、X-射线衍射（XRD）、透射电镜(TEM)对复合材料的结构及形貌进行了表征，并用热分析仪、万能试验机和紫外分光光度计研究了复合物的热稳定性能、拉伸性能和紫外吸收性能。结果表明：Zn/Al-LDH纳米片层无序分散在PVC基体中；Zn/Al-LDH对PVC低温时的骨干脱氯化氢有促进作用；与PVC膜相比，复合膜的分解温度降低，高温碳化温度升高，复合膜的拉伸强度及断裂伸长率得到提高，在300~380 nm具有一定的紫外吸收性能。
Abstract:Zn2+, Al3+layered double hydroxide (Zn/Al-LDH) modified with potassium oleate had been prepared by coprecipitation method, and then Zn/Al-LDH polyvinyl chloride (PVC) nanocomposites were prepared via solution intercalation in cyclohexanone. The structure and morphology of Zn/Al-LDH PVC nanocomposites were characterized by FT-IR, XRD and TEM. The thermal stability, mechanical property and UV absorption performance of the samples were investigated by thermogravimetric analyzer, universal testing machine and UV spectrophotometer. Results showed that Zn/Al-LDH nano lamellas were dispersed well in PVC matrix. Zn/Al-LDH facilitated PVC dehydrochlorination at a lower temperature, reduced the subsequent dehydrocarbonation and raised the carbonized temperature. The tensile strength and breakage elongation of Zn/Al-LDH PVC nanocomposites increased when Zn/Al-LDH was mixed into PVC matrix. The composite films had a certain amount of UV absorption in the range of 300~380 nm.
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基金项目:安徽省高等学校自然科学基金(KJ2010A018）
| 作者 | 单位 | |
| 伍嘉琦 | 安徽大学化学化工学院，安徽省绿色高分子重点实验室，合肥 230601 | 727676219@qq.com |
| 程晓敏 | 安徽大学化学化工学院，安徽省绿色高分子重点实验室，合肥 230602 | xmcheng@adu.edu.cn |
引用本文：
伍嘉琦,程晓敏.Zn/Al层状双氢氧化物-聚氯乙烯纳米复合物的制备与性能[J].功能高分子学报,2015,28(1):.
WU Jia qi,CHENG Xiao min.Preparation and Properties of Zn/Al Layered Double Hydroxide Polyvinyl Chloride Nanocomposites[J].Journal of Functional Polymers,2015,28(1):.
伍嘉琦,程晓敏.Zn/Al层状双氢氧化物-聚氯乙烯纳米复合物的制备与性能[J].功能高分子学报,2015,28(1):.
WU Jia qi,CHENG Xiao min.Preparation and Properties of Zn/Al Layered Double Hydroxide Polyvinyl Chloride Nanocomposites[J].Journal of Functional Polymers,2015,28(1):.
