PBAT/纳米蒙脱土复合薄膜的制备及水蒸气阻隔性能研究  

Preparation and Water Vapor Barrier Properties of PBAT/Nano MMT Composite Film

作　　者：谢东 张玉欣 崔跃飞[3] 贾志欣[3] 陈骏佳 Xie Dong;Zhang Yuxin;Cui Yuefei;Jia Zhixin;Chen Junjia(Guangdong Provincial Bioengineering Institute（Guangzhou Sugarcane Industry Research Institute）,Guangzhou 510316,China;Guangdong Biomaterials Engineering Technology Research Center,Guangzhou 510316,China;College of Materials Science and Technology,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]广东省生物工程研究所(广州甘蔗糖业研究所),广东广州510316 [2]广东省生物材料工程技术研究中心,广东广州510316 [3]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《塑料科技》2018年第10期40-44,共5页Plastics Science and Technology

基　　金：广东省科学院实施创新驱动发展能力建设专项资金项目(2018GDASCX-0105)

摘　　要：利用双十八烷基二甲基氯化铵（D1821）对纳米蒙脱土（MMT）进行预处理和改性,得到MMT-D1821,然后采用涂膜法和流延法制备了聚己二酸-对苯二甲酸丁二醇酯（PBAT）/MMT-D1821复合薄膜。对PBAT/未改性MMT及PBAT/MMT-D1821复合薄膜的微观形貌、水蒸气阻隔性能和力学性能进行了研究。结果表明：与未改性MMT相比,MMT-D1821在PBAT基体中的分散状态得到改善,PBAT/MMT-D1821复合薄膜的水蒸气阻隔性能及力学性能均比PBAT/未改性MMT复合薄膜明显提升;采用涂膜法制备的复合薄膜较之流延法得到的薄膜具有更好的水蒸气阻隔性能。The nano montmorillonite（MMT） was pretreated and modified by dioctadecyl dimethyl ammonium chloride（D1821）, and MMT-D1821 was obtained. The poly（butylene adipate-coterephthalate）（PBAT）/MMT-D1821 composite films were prepared by coating and casting methods, then the microstructure, water vapor barrier properties and mechanical properties of PBAT/unmodified MMT and PBAT/MMT-D1821 composite films were compared. The results show that the dispersion of MMT-D1821 in the PBAT matrix is improved compared with that of unmodified MMT, and the water vapor barrier properties and mechanical properties of the PBAT/MMT-D1821 composite film are significantly improved. The composite film prepared by the coating method has better water vapor barrier properties than that of the film prepared by casting method.

关 键 词：聚己二酸-对苯二甲酸丁二醇酯 纳米蒙脱土 有机改性 水蒸气阻隔 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]