Microstructure, electrical conductivity and mechanical properties of graphitization carbon foam derived from epoxy resin modified with coal tar pitch

被引:2
作者
Yang, Ping Jun [1 ,2 ]
Li, Tie Hu [1 ,2 ]
Li, Hao [1 ,2 ]
Dang, A. Lei [1 ,2 ]
机构
[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
[2] Shaanxi Engn Lab Graphene New Carbon Mat & Applic, Xian 710072, Peoples R China
基金
中国国家自然科学基金;
关键词
Coal tar pitch; Carbon foam; Pyrolysis reaction; Graphitization; Electrical conductivity; Compressive strength; STRENGTH; COMPOSITES;
D O I
10.1007/s42823-023-00642-9
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this study, the aromatic carbon content of epoxy resin (EP) increased via carbon tar pitch (CTP) modification, and the CTP occurred self-polymerization reaction. The carboxyl and hydroxyl groups of CTP and the hydroxyl and carboxyl groups of EP occurred chemical cross-linking reaction. CTP and graphitization treatment promoted EP CF carbon crystal growth. The graphitization degree of pure EP CF and 40 wt% CTP modified EP CF are 8.42% and 44.21%, respectively. With the increase CTP content, the cell size, ligament junction and density of graphitization modified EP CF gradually increased, while the number of pores and cells gradually decreased. The cell size, ligament junction size and density of 40 wt% CTP modified graphitization EP CF increased to 1200 mu m, 280 mu m and 0.5033 g/cm(3), respectively. EP CF exhibits entangling carbon ribbon and isotropic amorphous carbon. The 40 wt% CTP modified EP CF is composed of evenly distributed amorphous resin carbon and graphite domain CTP carbon. The graphitization modified EP CF improved electrical conductivity, and the electrical conductivity of 40 wt% CTP modified EP CF is 126.6 S/m. The compressive strength can be decided by EP carbon strength and its char yield, and graphitization 40 wt% CTP modified EP CF reached 4.9 MPa. This study provides some basis for preparation and application of CTP modified EP CF.
引用
收藏
页码:1065 / 1073
页数:9
相关论文
共 25 条
[1]   Role of graphitization-controlled conductivity in enhancing absorption dominated EMI shielding behavior of pyrolysis-derived Fe3C@C-PVDF nanocomposites [J].
Choudhary, Harish Kumar ;
Kumar, Rajeev ;
Pawar, Shital Patangrao ;
Sahoo, Balaram .
MATERIALS CHEMISTRY AND PHYSICS, 2021, 263
[2]   Preparation and pyrolysis behavior of modified coal tar pitch as C/C composites matrix precursor [J].
Dang, Alei ;
Li, Hao ;
Li, Tiehu ;
Zhao, Tingkai ;
Xiong, Chuanyin ;
Zhuang, Qiang ;
Shang, Yudong ;
Chen, Xudong ;
Ji, Xianglin .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2016, 119 :18-23
[3]   Application of pyrolysis to remove hydrogen from an organic nuclear waste [J].
Duan, Zhiya ;
Fiquet, Olivier ;
Ablitzer, Carine ;
Cassayre, Laurent ;
Vergnes, Hugues ;
Floquet, Pascal ;
Joulia, Xavier .
JOURNAL OF HAZARDOUS MATERIALS, 2021, 401
[4]   Copper-catalyzed pyrolysis of halloysites@polyphosphazene for efficient carbonization and smoke suppression [J].
Hong, Jing ;
Wu, Tong ;
Wang, Xiu ;
Lu, Zhenwu ;
Zhang, Jiangle ;
Zeng, Birong ;
Yuan, Conghui ;
Dai, Lizong .
COMPOSITES PART B-ENGINEERING, 2022, 230
[5]   A novel method to synthesize high-strength elastic gel and carbonized aerogel [J].
Huang, Xingyu ;
Yan, Ming ;
Lu, Hailong ;
Zhong, Yidan ;
Luo, Hui ;
Tian, Chaochao ;
Yang, Pei ;
Ni, Yeyan ;
Zhou, Xiaofan .
APPLIED SURFACE SCIENCE, 2022, 580
[6]   Mechanical and electrical properties of MCMB/Chopped carbon fiber composite with different bead size [J].
Im, Ui-Su ;
Kim, Jiyoung ;
Lee, Byung-Rok ;
Peck, Dong-Hyun ;
Jung, Doo-Hwan .
SCIENTIFIC REPORTS, 2019, 9 (1)
[7]   Improving the mechanical strength of carbon-carbon composites by oxidative stabilization [J].
Kim, Ji Hong ;
Jo, A. Young ;
Choi, Yun Jeong ;
Lee, Ki Bong ;
Im, Ji Sun ;
Bai, Byong Chol .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2020, 9 (06) :16513-16521
[8]   Ultrahigh strength and modulus of polyimide-carbon nanotube based carbon and graphitic fibers with superior electrical and thermal conductivities for advanced composite applications [J].
Kim, Seo Gyun ;
Heo, So Jeong ;
Kim, Sungyong ;
Kim, Junghwan ;
Kim, Sang One ;
Lee, Dongju ;
Lee, Suhun ;
Kim, Jungwon ;
You, Nam-Ho ;
Kim, Minkook ;
Kim, Hwan Chul ;
Chae, Han Gi ;
Ku, Bon-Cheol .
COMPOSITES PART B-ENGINEERING, 2022, 247
[9]   Carbonization and graphitization having of Kapton-type polyimide film having boron-bearing functional groups [J].
Konno, H ;
Shiba, K ;
Kaburagi, Y ;
Hishiyama, Y ;
Inagaki, M .
CARBON, 2001, 39 (11) :1731-1740
[10]   Study of mesophase pitch based carbon fibers: Structural changes as a function of anisotropic content [J].
Kumari, Khushboo ;
Rani, Sonu ;
Kumar, Pankaj ;
Prakash, Shiv ;
Dhakate, Sanjay R. ;
Kumari, Saroj .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2023, 171