Preparation and pyrolysis behavior of modified coal tar pitch as C/C composites matrix precursor

Alei Dang; Hao Li; Tiehu Li; Tingkai Zhao; Chuanyin Xiong; Qiang Zhuang; Yudong Shang; Xudong Chen; Xianglin Ji

doi:10.1016/j.jaap.2016.04.002

Preparation and pyrolysis behavior of modified coal tar pitch as C/C composites matrix precursor

Alei Dang, Hao Li, Tiehu Li, Tingkai Zhao, Chuanyin Xiong, Qiang Zhuang, Yudong Shang, Xudong Chen, Xianglin Ji

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

Medium-temperature coal tar pitch (CPT) which is used as C/C composites matrix precursor is modified by phenolic resin (PF) in the presence of p-toluene sulfuric (PTS) acid as catalyst. Fourier transform Infrared (FT-IR) spectroscopy techniques, polarized-light microscopy and thermaogravimetric analysis (TGA) are employed to study on structure and thermal behavior of the modified CPT, respectively. Results show that the high molecular weight aromatic species in modified CPT is found and also confirmed by the results from FT-IR and TGA analysis. Otherwise, coking yield of modified CTP has improved by 13% and soft point decreased by 25 °C compared with raw CPT. Moreover, the modification contributes to an improvement in the optical textures of resultant matrix precursor materials of C/C composites.

Original language	English
Pages (from-to)	18-23
Number of pages	6
Journal	Journal of Analytical and Applied Pyrolysis
Volume	119
DOIs	https://doi.org/10.1016/j.jaap.2016.04.002
State	Published - 1 May 2016

Keywords

C/C composites
Coal tar pitch
Modification
Phenolic resin
Pyrolysis behavior

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10.1016/j.jaap.2016.04.002

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title = "Preparation and pyrolysis behavior of modified coal tar pitch as C/C composites matrix precursor",

abstract = "Medium-temperature coal tar pitch (CPT) which is used as C/C composites matrix precursor is modified by phenolic resin (PF) in the presence of p-toluene sulfuric (PTS) acid as catalyst. Fourier transform Infrared (FT-IR) spectroscopy techniques, polarized-light microscopy and thermaogravimetric analysis (TGA) are employed to study on structure and thermal behavior of the modified CPT, respectively. Results show that the high molecular weight aromatic species in modified CPT is found and also confirmed by the results from FT-IR and TGA analysis. Otherwise, coking yield of modified CTP has improved by 13% and soft point decreased by 25 °C compared with raw CPT. Moreover, the modification contributes to an improvement in the optical textures of resultant matrix precursor materials of C/C composites.",

keywords = "C/C composites, Coal tar pitch, Modification, Phenolic resin, Pyrolysis behavior",

author = "Alei Dang and Hao Li and Tiehu Li and Tingkai Zhao and Chuanyin Xiong and Qiang Zhuang and Yudong Shang and Xudong Chen and Xianglin Ji",

year = "2016",

month = may,

day = "1",

doi = "10.1016/j.jaap.2016.04.002",

language = "英语",

volume = "119",

pages = "18--23",

journal = "Journal of Analytical and Applied Pyrolysis",

issn = "0165-2370",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Preparation and pyrolysis behavior of modified coal tar pitch as C/C composites matrix precursor

AU - Dang, Alei

AU - Li, Hao

AU - Li, Tiehu

AU - Zhao, Tingkai

AU - Xiong, Chuanyin

AU - Zhuang, Qiang

AU - Shang, Yudong

AU - Chen, Xudong

AU - Ji, Xianglin

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Medium-temperature coal tar pitch (CPT) which is used as C/C composites matrix precursor is modified by phenolic resin (PF) in the presence of p-toluene sulfuric (PTS) acid as catalyst. Fourier transform Infrared (FT-IR) spectroscopy techniques, polarized-light microscopy and thermaogravimetric analysis (TGA) are employed to study on structure and thermal behavior of the modified CPT, respectively. Results show that the high molecular weight aromatic species in modified CPT is found and also confirmed by the results from FT-IR and TGA analysis. Otherwise, coking yield of modified CTP has improved by 13% and soft point decreased by 25 °C compared with raw CPT. Moreover, the modification contributes to an improvement in the optical textures of resultant matrix precursor materials of C/C composites.

AB - Medium-temperature coal tar pitch (CPT) which is used as C/C composites matrix precursor is modified by phenolic resin (PF) in the presence of p-toluene sulfuric (PTS) acid as catalyst. Fourier transform Infrared (FT-IR) spectroscopy techniques, polarized-light microscopy and thermaogravimetric analysis (TGA) are employed to study on structure and thermal behavior of the modified CPT, respectively. Results show that the high molecular weight aromatic species in modified CPT is found and also confirmed by the results from FT-IR and TGA analysis. Otherwise, coking yield of modified CTP has improved by 13% and soft point decreased by 25 °C compared with raw CPT. Moreover, the modification contributes to an improvement in the optical textures of resultant matrix precursor materials of C/C composites.

KW - C/C composites

KW - Coal tar pitch

KW - Modification

KW - Phenolic resin

KW - Pyrolysis behavior

UR - http://www.scopus.com/inward/record.url?scp=84992306102&partnerID=8YFLogxK

U2 - 10.1016/j.jaap.2016.04.002

DO - 10.1016/j.jaap.2016.04.002

M3 - 文章

AN - SCOPUS:84992306102

SN - 0165-2370

VL - 119

SP - 18

EP - 23

JO - Journal of Analytical and Applied Pyrolysis

JF - Journal of Analytical and Applied Pyrolysis

ER -

Preparation and pyrolysis behavior of modified coal tar pitch as C/C composites matrix precursor

Abstract

Keywords

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