Record number :
Title of article :
Modified characteristics of mesophase pitch prepared from coal tar pitch by adding waste polystyrene
Author/Authors :
Cheng، نويسنده , , Xianglin and Zha، نويسنده , , Qingfang and Li، نويسنده , , Xuejun and Yang، نويسنده , , Xiaojun، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
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Abstract :
The toluene soluble of coal tar pitch was carbonized with waste polystyrene. The properties of mesophase pitches were characterized using polarized light optical microscope, apparent viscometer, FT-IR, 1H NMR and X-ray diffractometer. After adding the waste polystyrene into the toluene soluble of coal tar pitch, the soluble mesophase were was increased from about 9% to 52% and the mesophase pitches were changed from 74% with coarse mosaic texture to 100% with flow domain texture. The mesophase pitches were transformed from thixotropy to unthixotropy. By waste polystyrene added into the toluene soluble of coal tar pitch, the methylene group was increased a lot. The presence of more alkyl groups modified the characteristics of mesophase pitches and improved the assembly of mesophase pitch molecules.
Keywords :
modification , coal tar pitch , Waste polystyrene , Mesophase pitch
Journal title :
Fuel Processing Technology
Journal title :
Fuel Processing Technology
Serial Year :
Link To Document :