Jin Biqiang, Wang Hao, Xu Hu, Wu Haitao, Wu Wenqiang, Yuan Zhaoyang, Huang Zhendong, Wang Yinghan, Wu Jinrong
State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University Chengdu 610065 China
College of Science, Xichang University Xichang 615000 China.
RSC Adv. 2023 Jan 25;13(6):3661-3668. doi: 10.1039/d2ra07647k. eCollection 2023 Jan 24.
The fabrication of mechanically robust multifunctional nanocomposite (NC) films using simple but effective strategies is a long-term challenge. Inspired by natural nacre, we designed and fabricated high-performance nacre-like NC films (Na-MTM/HBP) through the self-assembly of the hyperbranched poly(amido amine) (HBP) and montmorillonite (Na-MTM) using a vacuum filtration approach. The optimal Na-MTM/HBP NC film shows excellent mechanical strength (106 MPa), which can be attributed to the formation of numerous hydrogen bonds and the electrostatic interactions between hyperbranched HBP and Na-MTM nanosheets. Such films also exhibit excellent gas barrier and fire-fire-retardant owing to the high aspect ratio of the Na-MTM nanosheets. In this work, a class of high-performance NC films exhibiting good mechanical, gas barrier, and flame retardancy properties have been developed. These NC films have great potential in packing or coating materials.
采用简单而有效的策略制备机械性能稳健的多功能纳米复合（NC）薄膜是一项长期挑战。受天然珍珠母启发，我们通过真空过滤法，利用超支化聚（酰胺胺）（HBP）和蒙脱石（Na-MTM）的自组装，设计并制备了高性能珍珠母状NC薄膜（Na-MTM/HBP）。最优的Na-MTM/HBP NC薄膜显示出优异的机械强度（106兆帕），这可归因于超支化HBP与Na-MTM纳米片之间形成了大量氢键和静电相互作用。由于Na-MTM纳米片的高纵横比，此类薄膜还具有优异的气体阻隔性和阻燃性。在这项工作中，已开发出一类具有良好机械、气体阻隔和阻燃性能的高性能NC薄膜。这些NC薄膜在包装或涂层材料方面具有巨大潜力。
