Preparation of Pitch for Melt-electrospinning from Naphtha Cracking Bottom Oil

Title
Preparation of Pitch for Melt-electrospinning from Naphtha Cracking Bottom Oil
Authors
김진훈이성호이영석
Keywords
NCB oil; pitch; carbon fiber; melt-electrospinning; naphtha cracking bottom oil
Issue Date
2013-08
Publisher
공업화학 (Applied Chemistry for Engineering)
Citation
VOL 24, NO 4, 402-406
Abstract
In this study, pitch for melt-electrospinning was prepared from naphtha cracking bottom (NCB) oil by modification with heat treatment. The softening point and property of the modified pitch was influenced by modification conditions such as nitrogen flow rate, heat treatment temperature, and reaction time. From among these, heat treatment temperature had a very strong influence on distribution of molecular weight and softening point of pitch. The C/H mole ratio and average molecular weight was increased with increasing the heat treatment temperature due to decomposition and cyclization reaction of surface-functional groups. In addition, the values of benzene insoluble (BI) and quinoline insoluble (QI) have also tend to decrease, and the width of molecular weight distribution seems to get more narrow. Carbon fiber in diameter of 4.8 μm was prepared from modified pitch with softening point in 155 ℃ by melt-electrospinning. It is believed that melt-electro spinning method is much more convenient to get the thinner fiber than conventional melt spinning method.
URI
http://pubs.kist.re.kr/handle/201004/45225
ISSN
12250112
Appears in Collections:
KIST Publication > Article
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