Promising commercial reinforcement to the nanodiamond/epoxy composite by grafting ammonium ions
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2018年第6期
论文作者：Qi Wang Guodong Wen Lingzhi Liu Dangsheng Su
文章页码：990 - 994
摘 要：A simple, economic, efficient and eco-friendly nanodiamond（ND） modifying method to reinforce the ND/epoxy composite for the industrialization of the high-performance ND/epoxy composite is always desired. In the present work, the ND was successfully modified only using aqueous ammonia through an easy-to-operate method by replacing the hydrogen atoms in the carboxyl group with ammonium ions.Ammonia, which is the only pollutant in the process, could be recycled. The modified ND/epoxy composite showed an overwhelming advantage over the neat epoxy or the ND/epoxy composite in storage modulus in their glassy state without any degradation of tensile strength, hardness and fracture toughness.
Qi Wang1,2，Guodong Wen2，Lingzhi Liu2，Dangsheng Su2
1. School of Materials Science and Engineering, University of Science and Technology of China2. Institute of Metal Research, Chinese Academy of Sciences
摘 要：A simple, economic, efficient and eco-friendly nanodiamond（ND） modifying method to reinforce the ND/epoxy composite for the industrialization of the high-performance ND/epoxy composite is always desired. In the present work, the ND was successfully modified only using aqueous ammonia through an easy-to-operate method by replacing the hydrogen atoms in the carboxyl group with ammonium ions.Ammonia, which is the only pollutant in the process, could be recycled. The modified ND/epoxy composite showed an overwhelming advantage over the neat epoxy or the ND/epoxy composite in storage modulus in their glassy state without any degradation of tensile strength, hardness and fracture toughness.
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