期刊
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
卷 31, 期 8, 页码 857-863出版社
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2015.07.010
关键词
Polarized light microscopy; Microstructure; Property; Thermogravimetric analysis (TGA); Formation mechanism
资金
- National Natural Science Foundation of China [51172180, 51372200]
- Program for New Century Excellent Talents in University of the Ministry of Education of China [NCET-12-1045]
- Science and Technology Plan of Xi'an [CXY1430(9)]
- Shaanxi Program for Outstanding Youth Project
The low-cost petroleum pitch and waste polyethylene (WPE) were used as raw materials to prepare the mesophase pitch by co-carbonization method and the forming mechanization of mesophase pitch was also investigated. Polarized microscopy, softening point, Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) were used to characterize and analyze the properties and structure of the mesophase pitch. The results showed that the carbonization yield of the modified pitch was high when 1-2 wt% WPE was added and the property of mesophase pitch (MP1-450-4 and MP2-450-4) prepared by thermal polymerization was excellent. Moreover, when the treatment temperature was above 420 degrees C, the mesophase development of the modified pitch may be entire and 100% streamline texture mesophase can form. During the co-carbonization of WPE/petroleum pitch, a large number of naphthenic structures and methylene bridges may be generated, which can improve the properties of the obtained mesophase pitch. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.
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