Simultaneous Improvement in Both Electrical Conductivity and Toughness of Polyamide 6 Nanocomposites Filled with Elastomer and Carbon Black Particles

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• 作者：Juan Hu ; Hao-Bin Zhang ; Song Hong ; Zhi-Guo Jiang ; Chenxi Gui ; Xiaofeng Li ; Zhong-Zhen Yu
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：February 12, 2014
• 年：2014
• 卷：53
• 期：6
• 页码：2270-2276
• 全文大小：488K
• ISSN：1520-5045

文摘

To simultaneously improve electrical conductivity and toughness of polyamide 6 (PA 6), carbon black (CB) nanoparticles and maleic anhydride grafted polyethylene鈥搊ctene copolymer (POE-g-MA) were compounded with PA 6 by melt compounding, and the influences of CB and POE-g-MA components on the electrical conductivity and mechanical properties of PA 6 nanocomposites were investigated. The addition of CB improves the electrical conductivity and Young鈥檚 modulus of PA 6. With 40 wt % POE-g-MA and 15 wt % CB, the nanocomposite exhibits a high notched impact energy of 73.9 kJ/m² and an electrical conductivity of 7.1 脳 10^鈥? S/m. Interestingly, the presence of POE-g-MA reduces the electrical percolation threshold of the PA 6 nanocomposites due to the selective localization of CB in the PA 6 matrix. Compared to PA 6/CB binary nanocomposites, the ternary nanocomposites exhibit both higher electrical conductivity and supertoughness.