Effects of plasma oxidation on the surface and interfacial properties of carbon fibres/polycarbonate composites
Effects of plasma oxidation on the surface and interfacial properties of carbon fibres/polycarbonate composites
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DOI：
10.1016/s0008-6223(00)00220-7
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发表时间：
2001-01-01
期刊：
影响因子：
10.9
通讯作者：
Bernardo, CA
中科院分区：
文献类型：
--
作者：
Montes-Morán, MA;Martínez-Alonso, A;Bernardo, CA
两种类型的碳纤维，超高模量（沥青基）和高强度（PAN基），提交氧等离子体处理。进行单丝测试以评估处理对纤维的机械性能的影响，拉伸数据的Weibull分析显示纤维氧化后的拉伸强度没有实质性变化。对碳纤维/聚碳酸酯复合材料进行的破碎试验表明，等离子体处理显着增加界面剪切强度。这证明了冷等离子体氧化增强碳纤维与聚碳酸酯的粘附性的能力。采用反相气相色谱法（IGC）在无限稀释下研究了碳表面的结构和化学性质对界面最终响应的可能影响。等离子体处理引起的表面官能团的增加似乎是界面附着力改善的主要原因。(C)2001爱思唯尔科技有限公司版权所有。
Two types of carbon fibres, ultra-high modulus (pitch-based) and high strength (PAN-based), were submitted to an oxygen plasma treatment. Single filament tests were performed to evaluate the effects of the treatment on the mechanical properties of the fibres, Weibull analysis of the tensile data revealed no substantial changes in the tensile strength after fibre oxidation. Fragmentation tests performed on carbon fibre/polycarbonate composites showed that the plasma treatment increases significantly the interfacial shear strength. This demonstrates the ability of the cool plasma oxidation to enhance the adhesion of carbon fibres to polycarbonate. The possible influences of the structural and chemical properties of the carbon surfaces upon the final response of the interface were investigated using inverse gas chromatography (IGC) at infinite dilution. The increase of surface functional groups induced by the plasma treatment seems to be the main reason for the improvement of the interfacial adhesion. (C) 2001 Elsevier Science Ltd. All rights reserved.