Park Soo-Jin, Jang Yu-Sin, Rhee Kyong-Yop
Advanced Materials Division, Korea Research Institute of Chemical Technology, P.O. Box 107, Yusong, Taejon, 305-600, Korea.
J Colloid Interface Sci. 2002 Jan 15;245(2):383-90. doi: 10.1006/jcis.2001.8040.
In this work, a new method based on nanoscaled Ni-P alloy coating on carbon fiber surfaces is proposed for the improvement of interfacial properties between fibers and epoxy matrix in a composite system. Fiber surfaces and the mechanical interfacial properties of composites were characterized by atomic absorption spectrophotometer (AAS), scanning electron microscopy (SEM), X-ray photoelectron spectrometry (XPS), interlaminar shear strength (ILSS), and impact strength. Experimental results showed that the O(1s)/C(1s) ratio or Ni and P amounts had been increased as the electroless nickel plating proceeded; the ILSS had also been slightly improved. The impact properties were significantly improved in the presence of Ni-P alloy on carbon fiber surfaces, increasing the ductility of the composites. This was probably due to the effect of substituted Ni-P alloy, leading to an increase of the resistance to the deformation and the crack initiation of the epoxy system.
在这项工作中，提出了一种基于碳纤维表面纳米级镍磷合金涂层的新方法，以改善复合体系中纤维与环氧基体之间的界面性能。通过原子吸收分光光度计（AAS）、扫描电子显微镜（SEM）、X射线光电子能谱（XPS）、层间剪切强度（ILSS）和冲击强度对纤维表面和复合材料的机械界面性能进行了表征。实验结果表明，随着化学镀镍过程的进行，O(1s)/C(1s) 比值或镍和磷的含量增加；层间剪切强度也略有提高。碳纤维表面存在镍磷合金时，冲击性能显著提高，复合材料的韧性增加。这可能是由于取代镍磷合金的作用，导致环氧体系的抗变形能力和裂纹萌生能力增强。
