Effect of Sizing on Interfacial Property of Single Pitch-Based Carbon Fiber/Epoxy Resin Composites
摘 要
采用酚醛树脂溶液上浆剂对沥青基炭纤维进行上浆处理, 并以环氧树脂为基体制备单丝沥青基碳纤维/环氧树脂复合材料, 通过单丝碎裂法试验、扫描电镜和热重分析等研究了上浆前后炭纤维的表面形貌及其复合材料的界面性能, 以及断裂长度与界面剪切强度的关系。结果表明: 上浆剂浓度适当时可提高其界面性能, 当质量分数在1%左右时, 上浆较均匀, 复合材料的界面剪切强度最高, 为38.86 MPa; 炭纤维最大概率的断裂长度区间越小或最大概率的断裂长度越小时, 复合材料的界面剪切强度越高。
Abstract
The pitch-based carbon fibers were sized by the sizing agent of phenolic resin solution, and the single pitched-base carbon filber/epoxy resin composites were prepared using epoxy as a matrix. A single fiber fragmentation test, SEM and TG were performed to study the surface morphology of the carbon fiber before and after sizing interfacial properties of composites and the relationship between fracture length and interfacial shear strength. Results show that the interfacial properties of composites have improved on some appropriate concentrations of sizing agents. The uniformly sized composite with interfacial shear strength of 38.86 MPa could be gotten when the mass fraction was controlled at about 1%; the smaller the maximum probability of fracture length region or fracture length was, the higher the interfacial shear strength of composite was.
中图分类号 TQ342.742
所属栏目 试验研究
基金项目 湖南大学汽车车身先进设计制造国家重点实验室自主课题项目资助(71165001)
收稿日期 2012/5/7
修改稿日期 2013/2/20
网络出版日期
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备注许鹏(1985-), 男, 湖南益阳人, 硕士研究生。
引用该论文: XU Peng,FEI You-qing,LI Wei. Effect of Sizing on Interfacial Property of Single Pitch-Based Carbon Fiber/Epoxy Resin Composites[J]. Materials for mechancial engineering, 2013, 37(6): 22~25
许鹏,费又庆,李伟. 上浆对单丝沥青基炭纤维/环氧树脂复合材料界面性能的影响[J]. 机械工程材料, 2013, 37(6): 22~25
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参考文献
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【2】GUIGON M, KLINKLIN E. The interface and interphase in carbon fibre reinforced composites[J].Composites, 1994, 25(7): 534-539.
【3】吴庆, 陈惠芳, 潘鼎. 碳纤维表面处理与上浆综述[J].材料导报, 2000, 14(6): 41-42.
【4】IROH J O, YUAN W. Surface properties of carbon fibres modified by electrodeposition of polyamic acid[J].Polymer, 1996, 37(18): 4197-4203.
【5】BROYLES N S, CHAN R, DAVIS R M, et al. Sizing of carbon fibres with aqueous solutions of poly[J].Polymer, 1998, 39(12): 2607-2613.
【6】TERMONIA Y. Fibre coating as a means to compensate for poor adhesion in fibre reinforced materials[J].J Mater Sci, 1990, 25(1): 103-106.
【7】杨禹, 吕春祥, 王心葵, 等.纳米SiO2改性上浆剂对炭纤维复合材料界面性能的影响[J].新型炭材料, 2005, 20(3): 211-212.
【8】肇研, 段跃新, 肖何.上浆剂对碳纤维表面性能的影响[J].材料工程, 2007, 15(4): 121-122.
【9】余奇平, 滕翠青, 余木火.国内外碳纤维上浆剂研究现状[J].纤维复合材料, 1997, 50(2): 50-51.
【10】CHENG T H, ZHANG J, YUMITORI S, et al. Sizing resin structure and interphase formation in carbon fiber composites[J].Composites, 1994, 25(7): 661-670.
【11】DILSIZ N, WIGHTMAN J P.Surface analysis of unsized and sized carbon fiber[J].Carbon, 1999, 37(7): 1105-1114.
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