聚吡咯修饰碳纤维/环氧树脂复合材料的界面剪切强度

doi:10.11901/1005.3093.2017.422

材料研究学报

2018, Vol. 32

Issue (3): 209-215 DOI: 10.11901/1005.3093.2017.422

研究论文

本期目录 | 过刊浏览

聚吡咯修饰碳纤维/环氧树脂复合材料的界面剪切强度

王闻宇¹, 刘亚敏¹, 金欣¹(

), 肖长发¹, 朱正涛^1,², 林童^1,²

1 天津工业大学材料科学与工程学院分离膜与膜过程省部共建国家重点实验室天津 300387
2 美国南达科他矿业理工学院拉皮德城 SD57702 美国;

Effect of Polypyrrole Modified Carbon Fiber on Interfacial Property of Composite PPy-carbon Fiber/epoxy

Wenyu WANG¹, Yamin LIU¹, Xin JIN¹(

), Changfa XIAO¹, Zhengtao ZHU^1,², Tong LIN^1,²

1 School of Materials Science and Engineering, State Key Laboratory of Membrane Separation and Membrane Processing, Tianjin University of Technology, Tianjin 300387, China
2 South Dakota Mining Institute, Rapid City SD57702, United States;

引用本文:

王闻宇, 刘亚敏, 金欣, 肖长发, 朱正涛, 林童. 聚吡咯修饰碳纤维/环氧树脂复合材料的界面剪切强度[J]. 材料研究学报, 2018, 32(3): 209-215.
Wenyu WANG, Yamin LIU, Xin JIN, Changfa XIAO, Zhengtao ZHU, Tong LIN. Effect of Polypyrrole Modified Carbon Fiber on Interfacial Property of Composite PPy-carbon Fiber/epoxy[J]. Chinese Journal of Materials Research, 2018, 32(3): 209-215.

全文: PDF(2349 KB) HTML

摘要:

应用等离子体技术对碳纤维(CF)表面进行预处理,然后进行液相沉积聚吡咯处理。使用X射线光电子能谱仪、原子力显微镜(AFM)、扫描电子显微镜(SEM)和傅立叶红外光谱仪等手段对碳纤维表面形态和结构进行分析与表征,并进行单纤维界面剪切强度试验和SEM观测,研究了碳纤维复合材料的界面粘结性能。结果表明,等离子体预处理碳纤维沉积聚吡咯(PPy)使单纤维界面剪切强度提高了259.3%。分析结果表明,界面剪切强度的提高与纤维/树脂间的机械铆合和界面的作用力有关。等离子体预处理使碳纤维表面的羧基基团增多,在羧基和PPy之间形成氢键,从而提高了碳纤维复合材料的界面性能。

关键词 ：复合材料, 聚吡咯, 等离子体, 氢键, 界面剪切强度

Abstract：

In order to improve the interfacial property of carbon fiber composites, the carbon fiber was pretreated by plasma technique and then coated with polypyrrole (PPy) by chemical oxidation polymerization of pyrrole. The surface modified carbon fiber and composite were characterized by SEM, AFM, XPS, FT-IR and IFSS. Results show that the interfacial shear strength of the modified single fiber increased by 259.3%, which may be ascribed to that the plasma pretreatment can increase the amount of polar groups on the surface of the carbon fiber, and facilitate the formation of hydrogen bonds between the carbon fiber and PPy, thus enhancing the interfacial property of the composite PPy-carbon fiber/epoxy.

Key words： composite polypyrrole plasma hydrogen bond interface shear strength

收稿日期: 2017-07-12

ZTFLH:

TB332

基金资助:国家自然科学基金(51573136, 51103101);天津市自然科学基金(12JCYBJC17800, 16JCTPJC45100);天津市科技计划项目(15PTSYJC00230, 15PTSYJC00240,15PTSYJC00250)

作者简介:

作者简介王闻宇,男,1972年生,副教授

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https://www.cjmr.org/CN/10.11901/1005.3093.2017.422 或 https://www.cjmr.org/CN/Y2018/V32/I3/209

图1 单纤维复合材料的界面剪切强度

图2 碳纤维/环氧树脂复合材料断面的SEM照片

图3 碳纤维的SEM照片

图4 碳纤维的AFM照片

图5 碳纤维的XPS全谱图

图6 碳纤维的C1s分峰谱图

表1 不同处理条件下碳纤维表面的化学组成

图7 不同样品的红外光谱图

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