氧化石墨烯和石墨相氮化碳增强炭/酚醛复合材料界面热烧蚀性能对比

马媛媛; 杨禹; 吕春祥; 吕晓轩; 武世杰; 尉壮

氧化石墨烯和石墨相氮化碳增强炭/酚醛复合材料界面热烧蚀性能对比

马媛媛^1,2,
杨禹^1,3,,
吕春祥^1,3,
吕晓轩^1,3,
武世杰^1,2,
尉壮^1,2

1.
中国科学院山西煤炭化学研究所, 中国科学院炭材料重点实验室, 山西太原 030001;
2.
中国科学院大学, 北京 100049;
3.
中国科学院山西煤炭化学研究所, 碳纤维制备技术国家工程实验室, 山西太原 030001

基金项目: 国家自然科学基金（U1710122）.

详细信息

作者简介:
马媛媛,博士研究生.E-mail:434501304@qq.com

通讯作者:
吕春祥,研究员.E-mail:lucx@sxicc.ac.cn;杨禹,副研究员.E-mail:yangyv2003@sxicc.ac.cn

中图分类号: TB33
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- 被引次数: 0
出版历程
- 收稿日期: 2018-12-20
- 录用日期: 2019-02-20
- 修回日期: 2019-01-30
- 刊出日期: 2019-02-28

A comparative study of the ablation properties of carbon fiber-reinforced phenolic resin composites with a matrix modified with graphene oxide and graphitic carbon nitride

MA Yuan-yuan^1,2,
YANG Yu^{1,3
,},
LU Chun-xiang^1,3,
LU Xiao-xuan^1,3,
WU Shi-jie^1,2,
YU Zhuang^1,2

1.
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China;
3.
National Engineering Laboratory for Carbon Fiber Technology, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Funds: National Natural Science Foundation of China (U1710122).

摘要

摘要: 为了提高炭/酚醛复合材料的烧蚀性能，分别采用两种炭纳米填料对纤维增强体界面进行改性。以氧化石墨烯（GO）和酸化石墨相氮化碳（ag-C₃N₄）改性低负载（0.05 wt%~0.2 wt%）的炭/酚醛复合材料。用氧乙炔火焰、SEM、XRD、Raman研究烧蚀面形貌与纤维石墨化度。结果表明：随着GO和ag-C₃N₄含量由0升至0.2 wt%，GO/CF-PR和ag-C₃N₄/CF-PR复合材料的耐烧蚀性能均呈现先增加后降低的趋势。其中以0.1 wt%添加量为最佳，0.1ag-C₃N₄/CF-PR和0.1GO/CF-PR复合材料比起纯的CF-PR的质量烧蚀率分别降低44.42%和28.96%，归因于ag-C₃N₄和GO可显著提高基体的炭残率和烧蚀区纤维表面的石墨化度。
- 氧化石墨烯 /
- 酸化g-C₃N₄ /
- 炭/酚醛复合材料 /
- 耐烧蚀
Abstract: The ablative properties of carbon fiber/phenolic resin (CF/PR) composites were investigated for a graphene oxide (GO)- and a graphitic carbon nitride (g-C₃N₄)-modified matrix with contents of 0.05, 0.1 and 0.2 wt%, respectively. Both the CF/(g-C₃N₄-PR) and CF/(GO-PR) composites showed much better ablation resistance than the one without g-C₃N₄ and GO. The optimum contents of g-C₃N₄ and GO are both 0.1 wt% giving mass ablation rates for CF/(0.1% g-C₃N₄-PR) and CF/(0.1% GO-PR) that were respectively 44.42 and 28.96% lower than that of the CF/PR composite. The addition of g-C₃N₄ and GO increases the char yield and the degree of graphitization of the char near the fibers during ablation, which benefits heat dissipation and thereby increases the ablation resistance.
- GO /
- Acid g-C₃N₄ /
- Carbon/phenolic composites /
- Ablation resistance

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