Solubilization and controlling physical properties of coal-tar-pitch as a source for carbon fiber: toward establishment of "bottom-up bulk chemistry"
| Project/Area Number |
26620185
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Chuo University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 材料加工・処理 / 石炭ピッチ / 炭素繊維 / アルキル化 |
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| Outline of Final Research Achievements |
Fibers of coal-tar-pitch was heated under the air in an electric tube furnace to produce infusible pitch. Higher heating temperature led to higher oxygen contents in the resulting infusible pitch and the main source of the oxygen can be attributed to carbonyl functionality. The infusible pitch was further treated with alkyl Grignard reagent to form alkylated pitch, in which hydroxy groups were observed. Upon alkylation, solubility was improved and maxima of absorption and emission were shifted to the longer wavelength region. Alkylated pitch made at higher temperature exhibited higher molecular weight. Irradiation of the alkylated pitch to microwave induced dehydration reaction. The temperature for 10% weight loss of dehydrated pitch depended on the conditions to prepare the infusible pitch.
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Report
(3 results)
Research Products
(12 results)
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[Patent(Industrial Property Rights)] 可溶化炭素剤の製造方法2015
Inventor(s)
山下誠・藤本翔・福田武司・山形憲一
Industrial Property Rights Holder
山下誠・藤本翔・福田武司・山形憲一
Industrial Property Rights Type
特許
Patent Publication Number
2015-171990
Filing Date
2015-02-19
Acquisition Date
2015-10-01
Related Report
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