Facile monomer stabilization approach to fabricate iron/vinyl ester resin nanocomposites
Facile monomer stabilization approach to fabricate iron/vinyl ester resin nanocomposites
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DOI：
10.1016/j.compscitech.2008.05.017
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发表时间：
2008-09
影响因子：
9.1
通讯作者：
Zhanhu Guo;Hongfei Lin;A. Karki;Suying Wei;D. Young;S. Park;J. Willis;T. Hahn
中科院分区：
文献类型：
--
作者：
Zhanhu Guo;Hongfei Lin;A. Karki;Suying Wei;D. Young;S. Park;J. Willis;T. Hahn
在不添加任何表面活性剂和偶联剂的情况下，采用单体粒子稳定法制备了Fe/乙烯基酯树脂纳米复合材料。乙烯基酯单体作为偶联剂，其一侧通过位移反应共价结合在纳米颗粒表面，另一端与额外的乙烯基酯树脂共聚，形成坚固的整体。铁纳米颗粒的加入有利于制备具有较低初始固化温度的纳米复合材料。与纯乙烯基酯树脂相比，纳米复合材料中的乙烯基酯树脂变得热稳定。由于均匀的粒子分散和引入的界面共价束缚，观察到力学性能的增强。铁纳米粒子在乙烯基酯树脂基体中分散后，磁性变硬（矫顽力增大）。
Fe/Vinyl ester resin nanocomposites were fabricated by the monomer particle stabilization without any additional surfactant or coupling agent. Vinyl ester monomer serves as a coupling agent with one side covalently bound onto the nanoparticle surface by a displacement reaction and the other end copolymerized with extra vinyl ester resin to form a robust unity. The addition of iron nanoparticles favors the nanocomposite fabrication with a lower initial curing temperature. Vinyl ester resin in the nanocomposites becomes thermally stable as compared to the pure vinyl ester resin. An enhanced mechanical property is observed due to the uniform particle dispersion and the introduced interfacial covalent bondage. The iron nanoparticles become magnetically harder (with a larger coercivity) after dispersion in the vinyl ester resin matrix.