Oxidative chemical depolymerization of thermoset epoxy resin for green recycling

Doo Hun Kim; Ayeong Yu; Munju Goh

Journal of Industrial and Engineering Chemistry, Vol.96, 76-81, April, 2021

DOI10.1016/j.jiec.2021.01.047 Export Citation

Oxidative chemical depolymerization of thermoset epoxy resin for green recycling

Doo Hun Kim, Ayeong Yu¹, and Munju Goh^{1, †}

Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju, Jeonbuk 55324, Republic of Korea
¹Department of Chemical Engineering, Konkuk University, Gwangjin, Seoul 05029, Republic of Korea

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Carbon-fibre-reinforced plastics (CFRPs) have been widely used in many fields, which has inevitably resulted in the production of large amounts of waste composites. Therefore, the recycling of high-value carbon fibres has become a topic of great interest. Thus, herein we report the development of a method for the decomposition of the cross-linked epoxy (EP) resin of CFRPs by oxidative depolymerization under ambient pressure in the presence of a potassium permanganate (KMnO4) solution. The decomposition mechanism was also examined, and the reaction rate constant was determined to be 2.45 x 10-2 min-1 in a 1 M KMnO4 solution. In addition, the tensile strength of the reclaimed CF was 3.20 GPa, which is 90.65% the value of the virgin CF. These results indicate that our developed method is suitable for the efficient reclamation of high-quality carbon fibres from CFRP scrap.

Keywords:Recycling;Oxidative depolymerization;Epoxy resin;Potassium permanganate;Carbon fibre

[References]

Tao Y, Fang L, Dai M, Wang C, Sun J, Fang Q, Polym. Chem, 11, 4500 (2020)
Su X, Zhou Z, Liu J, Luo J, Liu R, Eur. Polym. J., 140, 110053 (2020)
Liu X, Tian F, Zhao X, Du R, Xu S, Wang YZ, Appl. Surf. Sci., 529, 147151 (2020)
Zhang ZB, Hirose T, Nishio S, Morioka Y, Azuma N, Ueno A, Ohkita H, Okada M, Ind. Eng. Chem. Res., 34(12), 4514 (1995)
Dang WR, Kubouchi M, Sembokuya H, Tsuda K, Polymer, 46(6), 1905 (2005)
Jin FL, Li X, Park SJ, J. Ind. Eng. Chem., 29, 1 (2015)
Schneiderman DK, Hillmyer MA, Macromolecules, 50(10), 3733 (2017)
Marsh G, Reinf. Plast., 52, 36 (2008)
Meyer LO, Schulte K, Grove-Nielsen E, J. Compos. Mater., 43, 1121 (2009)
Pimenta S, Pinho ST, Waste Manage., 31, 378 (2011)
Pickering SJ, Kelly RM, Kennerley JR, Rudd CD, Fenwick NJ, Compos. Sci. Technol., 60, 509 (2000)
Princaud M, Aymonier C, Loppinet-Serani A, Perry N, Sonnemann G, ACS Sustain. chem. Eng., 2, 1498 (2014)
Adschiri T, Lee YW, Goto M, Takami S, Green Chem., 13, 1380 (2011)
Pinero-Hernanz R, Dodds C, Hyde J, Garcia-Serna J, Poliakoff M, Lester E, Cocero MJ, Kingman S, Pickering S, Wong KH, Compos. Pt. A-Appl. Sci. Manuf., 39, 454 (2008)
Jiang G, Pickering SJ, Lester EH, Turner TA, Wong KH, Warrior NA, Compos. Sci. Technol., 69, 192 (2009)
Kim DH, Lee M, Goh M, ACS Sustain. Chem. Eng., 8, 2433 (2020)
Lee M, Kim DH, Park JJ, You NH, Goh M, Waste Manage., 118, 190 (2020)
Li J, Xu PL, Zhu YK, Ding JP, Xue LX, Wang YZ, Green Chem., 14, 3260 (2012)
Das M, Chacko R, Varughese S, ACS Sustain. Chem. Eng., 6, 1564 (2018)
Centi G, Cavani F, Trifiro F, Selective Oxidation by Heterogeneous Catalysis, Springer Science & Business Media, 2012.
Shechter H, Rawalay SS, Tubis M, J. Am. Chem. Soc., 86, 1701 (1964)
Rawalay SS, Shechter H, J. Org. Chem., 32, 3129 (1967)
Wei MM, Stewart R, J. Am. Chem. Soc, 88, 1974 (1966)

[Referenced By]

[1] Tao Y, Fang L, Dai M, Wang C, Sun J, Fang Q, Polym. Chem, 11, 4500 (2020)

[2] Su X, Zhou Z, Liu J, Luo J, Liu R, Eur. Polym. J., 140, 110053 (2020)

[3] Liu X, Tian F, Zhao X, Du R, Xu S, Wang YZ, Appl. Surf. Sci., 529, 147151 (2020)

[4] Zhang ZB, Hirose T, Nishio S, Morioka Y, Azuma N, Ueno A, Ohkita H, Okada M, Ind. Eng. Chem. Res., 34(12), 4514 (1995)

[5] Dang WR, Kubouchi M, Sembokuya H, Tsuda K, Polymer, 46(6), 1905 (2005)

[6] Jin FL, Li X, Park SJ, J. Ind. Eng. Chem., 29, 1 (2015)

[7] Schneiderman DK, Hillmyer MA, Macromolecules, 50(10), 3733 (2017)

[8] Marsh G, Reinf. Plast., 52, 36 (2008)

[9] Meyer LO, Schulte K, Grove-Nielsen E, J. Compos. Mater., 43, 1121 (2009)

[10] Pimenta S, Pinho ST, Waste Manage., 31, 378 (2011)

[11] Pickering SJ, Kelly RM, Kennerley JR, Rudd CD, Fenwick NJ, Compos. Sci. Technol., 60, 509 (2000)

[12] Princaud M, Aymonier C, Loppinet-Serani A, Perry N, Sonnemann G, ACS Sustain. chem. Eng., 2, 1498 (2014)

[13] Adschiri T, Lee YW, Goto M, Takami S, Green Chem., 13, 1380 (2011)

[14] Pinero-Hernanz R, Dodds C, Hyde J, Garcia-Serna J, Poliakoff M, Lester E, Cocero MJ, Kingman S, Pickering S, Wong KH, Compos. Pt. A-Appl. Sci. Manuf., 39, 454 (2008)

[15] Jiang G, Pickering SJ, Lester EH, Turner TA, Wong KH, Warrior NA, Compos. Sci. Technol., 69, 192 (2009)

[16] Kim DH, Lee M, Goh M, ACS Sustain. Chem. Eng., 8, 2433 (2020)

[17] Lee M, Kim DH, Park JJ, You NH, Goh M, Waste Manage., 118, 190 (2020)

[18] Li J, Xu PL, Zhu YK, Ding JP, Xue LX, Wang YZ, Green Chem., 14, 3260 (2012)

[19] Das M, Chacko R, Varughese S, ACS Sustain. Chem. Eng., 6, 1564 (2018)

[20] Centi G, Cavani F, Trifiro F, Selective Oxidation by Heterogeneous Catalysis, Springer Science & Business Media, 2012.

[21] Shechter H, Rawalay SS, Tubis M, J. Am. Chem. Soc., 86, 1701 (1964)

[22] Rawalay SS, Shechter H, J. Org. Chem., 32, 3129 (1967)

[23] Wei MM, Stewart R, J. Am. Chem. Soc, 88, 1974 (1966)