臭氧改性碳纤维/聚酰亚胺复合材料的制备与性能研究

玻璃钢/复合材料 ›› 2019, Vol. 0 ›› Issue (3): 21-25.

臭氧改性碳纤维/聚酰亚胺复合材料的制备与性能研究

张荣^1,2, 裴学良³, 席先锋³, 欧阳琴²

1.上海大学材料科学与工程学院,上海200444;
2.中国科学院宁波材料技术与工程研究所碳纤维制备技术国家工程实验室,宁波315201;
3.中国科学院宁波材料技术与工程研究所先进能源材料工程实验室(筹),宁波315201

收稿日期:2018-07-20 出版日期:2019-03-28 发布日期:2019-03-28
通讯作者: 陈友汜(1980-),男,博士,研究员,主要从事高性能纤维及复合材料方面的研究,chys@nimte.ac.cn。
作者简介:张荣(1993-),男,硕士,主要从事碳纤维增强树脂复合材料方面的研究。

STUDY ON THE PREPARATION AND INTERFACE PERFORMANCE OF O₃-OXIZED CARBON FIBER/POLYIMIDE COMPOSITES

ZHANG Rong^1,2, PEI Xue-liang³, XI Xian-feng³, OUYANG-Qin²

1.School of Material Science and Engineering, Shanghai University, Shanghai 200444, China;
2.National Engineering Laboratory for Carbon fiber Preparation Technology, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China;
3.Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China

Received:2018-07-20 Online:2019-03-28 Published:2019-03-28

摘要/Abstract

摘要： 采用臭氧氧化的方法对碳纤维进行表面改性,并用作热塑性聚酰亚胺树脂的增强体。采用单丝拉伸试验、XPS研究臭氧处理时间对碳纤维单丝拉伸强度和表面官能团的影响。结果表明,臭氧处理时间越长,碳纤维力学性能的下降程度越大,而表面含氧官能团含量越多。优选单丝拉伸强度保留率较高、含氧官能团含量较丰富的碳纤维与热塑性聚酰亚胺制成复合材料,并评价其层间剪切强度(ILSS)。结果表明,臭氧处理5 min就可使碳纤维/聚酰亚胺复合材料的ILSS提升43%,说明臭氧处理可显著提升碳纤维/热塑性聚酰亚胺的界面性能。

关键词: 碳纤维, 臭氧氧化, 聚酰亚胺, 复合材料

Abstract: Carbon fiber, the surface of which was modified through ozone oxidation, was used as the reinforcement for thermoplastic polyimide resin. Effect of ozone treatment time on monofilament tensile strength and surface functional groups had been studied using monofilament tensile test and X-ray photoelectron spectroscopy (XPS), respectively. The results indicated that the mechanical properties of carbon fiber was destructed, and the oxygen-containing functional groups on the surface increased with the process of the ozone treatment. The composites were made by thermoplastic polyimide and carbon fiber oxidized with the high retention rate of monofilament tensile strength and high oxygen-containing functional groups, and the interlaminar shear strength was evaluated. The results show that compared with unoxidized specimen, the interlaminar shear strength of the composites made by thermoplastic polyimide and carbon fiber oxidized for 5 minutes increased by 43%, showing that ozone treatment can effectively enhance fiber-matrix interfacial bonding.

Key words: carbon fiber, ozone oxidation, polyimide, composite

中图分类号:

TB332

张荣, 裴学良, 席先锋, 欧阳琴. 臭氧改性碳纤维/聚酰亚胺复合材料的制备与性能研究[J]. 玻璃钢/复合材料, 2019, 0(3): 21-25.

ZHANG Rong, PEI Xue-liang, XI Xian-feng, OUYANG-Qin. STUDY ON THE PREPARATION AND INTERFACE PERFORMANCE OF O₃-OXIZED CARBON FIBER/POLYIMIDE COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2019, 0(3): 21-25.

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