Surface modification of carbon fibers and the selective laser sintering of modified carbon fiber/nylon 12 composite powder

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• 作者：Wu Jing^a ; Chen Hui^a ; ^b ; ^{hnuchh@163.com} ; Wu Qiong^a ; Liu Hongbo^a ; ^{hndxlhb@163.com} ; Luo Zhanjun^a
• 关键词：Carbon fiber ; Surface modification ; Modified carbon fiber/nylon 12 composite powder ; Selective laser sintering ; Porosity
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：116
• 期：Complete
• 页码：253-260
• 全文大小：2613 K
• 卷排序：116

文摘

Modified CFs were firstly used as reinforcement phases of composites made by selective laser sintering (SLS). The interfacial adhesion between fillers and matrix in SLS were firstly discussed. The oxygenic groups on the surface of CFs were thermally decomposed during the sintering process. Treating CFs at 400 °C after HNO3 modification can decrease the porosity of sintered composites. The practical application problems of modified CF/PA12 composite powder in SLS were resolved.