| Project/Area Number |
26550079
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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 |
Environmental conscious materials and recycle
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| Research Institution | Kitakyushu National College of Technology |
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Principal Investigator |
NAGATA Yasuhisa 北九州工業高等専門学校, 生産デザイン工学科, 教授 (50620944)
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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 |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 炭素繊維 / 複合材料 / リサイクル / 硫酸 / 電解液 / 再生 / 電気分解 / ペルオキソ硫酸 |
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| Outline of Final Research Achievements |
The electrolytic solution containing an oxidizing agent (active radicals) produced by electrolysis of sulfuric acid can be completely dissolved a matrix resin of a carbon fiber composite material (CFRP)in a short period of time. CFRP was a laminated cured product of epoxy resin. The amount of the oxidizing agent had the maximum amount of the solution produced by electrolysis of 30% sulfuric acid and under the conditions of a current value 7A, and this electrolytic solution could be completely dissolved the resin of CFRP under the temperature of 150℃ during several hours. The average strength of CF after recycling was average of 490kgf/mm2, which was equal to or higher than that of original CF of strength (460kgf / mm2) These results means that this process can be effective to recycle raw materials from CFRP waste material without causing performance degradation of CF.
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