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Hydrogen Bond Association to Prepare Flame Retardant Polyvinyl Alcohol Film with High Performance
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-01-19 , DOI: 10.1021/acsami.0c19093 Wang Xie 1 , Qiuru Bao 1 , Yuan Liu 1 , Hui Wen 2 , Qi Wang 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-01-19 , DOI: 10.1021/acsami.0c19093 Wang Xie 1 , Qiuru Bao 1 , Yuan Liu 1 , Hui Wen 2 , Qi Wang 1
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It has always been the goal of flame retardant research to improve the flame retardancy of a polymer efficiently without compromising comprehensive properties such as mechanical properties. For polyvinyl alcohol (PVA), inspired by the multiple hydrogen bonding in spider silk, we design a new type of compound containing phosphorus and nitrogen with multiple hydrogen-bonding reaction sites (N,N’,N’’-tris(2-aminoethyl)phosphoric triamide (TE)) as it is flame retardant. The dynamic cross-linking structure is constructed, and the hyperdispersion of flame retardancy is achieved by the hydrogen bond self-assembly between TE and PVA, thus the high-performance flame retardant PVA is obtained. With only a 10 wt % addition of TE, the PVA film with a thickness of 0.15 mm can reach the UL94 VTM-0 level, and its tensile strength, ductility, and initial decomposition temperature can be increased by 33, 15, and 12 °C, respectively. In addition, the hydrogen-bonding effect and flame retardant mechanism are characterized and studied. This work overcomes the shortcomings of traditional flame retarding approaches and provides an effective strategy for the preparation of flame retardant polymers with an excellent performance.
中文翻译：
氢键协会制备高性能的阻燃聚乙烯醇薄膜
阻燃剂研究一直是有效地提高聚合物的阻燃性而不损害诸如机械性能之类的综合性能的目标。对于聚乙烯醇（PVA），受蜘蛛丝中多个氢键的启发，我们设计了一种新型的含磷和氮的化合物，该化合物具有多个氢键反应位点（N，N '，N-''三（2-氨基乙基）磷三酰胺（TE）），因为它具有阻燃性。构建了动态交联结构，通过TE和PVA之间的氢键自组装实现了阻燃性的超分散，从而获得了高性能的阻燃PVA。仅添加10 wt％的TE，厚度为0.15 mm的PVA膜就可以达到UL94 VTM-0等级，其拉伸强度，延展性和初始分解温度可以提高33、15和12° C分别。另外，对氢键作用和阻燃机理进行了表征和研究。这项工作克服了传统阻燃方法的缺点，为制备具有优异性能的阻燃聚合物提供了有效的策略。
更新日期：2021-02-03
中文翻译：
氢键协会制备高性能的阻燃聚乙烯醇薄膜
阻燃剂研究一直是有效地提高聚合物的阻燃性而不损害诸如机械性能之类的综合性能的目标。对于聚乙烯醇（PVA），受蜘蛛丝中多个氢键的启发，我们设计了一种新型的含磷和氮的化合物，该化合物具有多个氢键反应位点（N，N '，N-''三（2-氨基乙基）磷三酰胺（TE）），因为它具有阻燃性。构建了动态交联结构，通过TE和PVA之间的氢键自组装实现了阻燃性的超分散，从而获得了高性能的阻燃PVA。仅添加10 wt％的TE，厚度为0.15 mm的PVA膜就可以达到UL94 VTM-0等级，其拉伸强度，延展性和初始分解温度可以提高33、15和12° C分别。另外，对氢键作用和阻燃机理进行了表征和研究。这项工作克服了传统阻燃方法的缺点，为制备具有优异性能的阻燃聚合物提供了有效的策略。
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