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Efficient Flame Retardancy, Smoke Suppression, and Mechanical Enhancement of β‐FeOOH@Metallo‐Supramolecular Polymer Core–Shell Nanorod Modified Epoxy Resin
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-08-04 , DOI: 10.1002/mame.202000137 Ting Chen 1 , Xiu Wang 1 , Chaohua Peng 1 , Guorong Chen 1 , Conghui Yuan 1 , Yiting Xu 1 , Birong Zeng 1 , Weiang Luo 1 , Krishnasamy Balaji 2 , Denise F. S. Petri 3 , Lizong Dai 1
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-08-04 , DOI: 10.1002/mame.202000137 Ting Chen 1 , Xiu Wang 1 , Chaohua Peng 1 , Guorong Chen 1 , Conghui Yuan 1 , Yiting Xu 1 , Birong Zeng 1 , Weiang Luo 1 , Krishnasamy Balaji 2 , Denise F. S. Petri 3 , Lizong Dai 1
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A metallo‐supramolecular polymer poly{4‐(((3,4‐dihydroxyphenyl)(6‐oxidodibenzo[c,e][1,2]oxaphosphinin‐6‐yl)methyl)amino)phenyl‐2,2‐dimethylbutanoate} (HP) is synthesized through a Kabachnik–Fields reaction. Then HP is coated on the surface of β‐FeOOH by coordination interaction to generate organic–inorganic hybrid β‐FeOOH@HP (Fe@P) nanorods, which are used for preparing flame retardant epoxy resin (EP) nanocomposites. The structure of HP is characterized by nuclear magnetic resonance and fourier transform infrared spectroscopy, the morphology and composition of β‐FeOOH and Fe@P nanorods are also studied by scanning electron micrograph and transmission electron microscope instruments. With the presence of 2 wt% of Fe@P, the limiting oxygen index value of EP nanocomposite increased to 32.8% with UL‐94 vertical burning V‐1 rating, and 31.4% of flexural strength enhancement, indicating the improvement of both flame retardant and mechanical properties with low loading amount. The reduction of total smoke production, average CO and CO2 yield for EP nanocomposites with 0.5 wt% of Fe@P reflected the good smoke suppression. The flame retardant mechanism of Fe@P is also discussed.
中文翻译：
β-FeOOH@金属-超分子聚合物核-壳纳米棒改性环氧树脂的高效阻燃性，抑烟性和机械增强
一种金属超分子聚合物聚{4-（（（（3,4-二羟基苯基）（6-氧化二苯并[c，e] [1,2]氧杂膦-6-6基）甲基）氨基）苯基-2-2-二甲基丁酸} （HP）是通过Kabachnik-Fields反应合成的。然后通过配位相互作用将HP涂覆在β-FeOOH的表面上，生成有机-无机杂化的β-FeOOH@ HP（Fe @ P）纳米棒，用于制备阻燃环氧树脂（EP）纳米复合材料。HP的结构具有核磁共振和傅里叶变换红外光谱学特征，还通过扫描电子显微镜和透射电子显微镜仪器研究了β-FeOOH和Fe @ P纳米棒的形态和组成。当Fe @ P含量为2 wt％时，EP纳米复合材料的极限氧指数值在UL‐94垂直燃烧V-1等级下增加到32.8％，在31。4％的抗弯强度增强，表明在低负载量下阻燃性和机械性能均得到改善。减少总烟雾量，平均CO和COFe @ P含量为0.5 wt％的EP纳米复合材料的2收率反映出良好的抑烟性。还讨论了Fe @ P的阻燃机理。
更新日期：2020-10-12
中文翻译：
β-FeOOH@金属-超分子聚合物核-壳纳米棒改性环氧树脂的高效阻燃性，抑烟性和机械增强
一种金属超分子聚合物聚{4-（（（（3,4-二羟基苯基）（6-氧化二苯并[c，e] [1,2]氧杂膦-6-6基）甲基）氨基）苯基-2-2-二甲基丁酸} （HP）是通过Kabachnik-Fields反应合成的。然后通过配位相互作用将HP涂覆在β-FeOOH的表面上，生成有机-无机杂化的β-FeOOH@ HP（Fe @ P）纳米棒，用于制备阻燃环氧树脂（EP）纳米复合材料。HP的结构具有核磁共振和傅里叶变换红外光谱学特征，还通过扫描电子显微镜和透射电子显微镜仪器研究了β-FeOOH和Fe @ P纳米棒的形态和组成。当Fe @ P含量为2 wt％时，EP纳米复合材料的极限氧指数值在UL‐94垂直燃烧V-1等级下增加到32.8％，在31。4％的抗弯强度增强，表明在低负载量下阻燃性和机械性能均得到改善。减少总烟雾量，平均CO和COFe @ P含量为0.5 wt％的EP纳米复合材料的2收率反映出良好的抑烟性。还讨论了Fe @ P的阻燃机理。
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