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Fast chemical recycling of carbon fiber reinforced plastic at ambient pressure using an aqueous solvent accelerated by a surfactant.
Lee, Miyeon; Kim, Doo Hun; Park, Jong-Jin; You, Nam-Ho; Goh, Munju.
Afiliación
  • Lee M; Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju, Jeonbuk 55324, Republic of Korea; Department of Polymer Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
  • Kim DH; Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju, Jeonbuk 55324, Republic of Korea.
  • Park JJ; Department of Polymer Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
  • You NH; Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Wanju, Jeonbuk 55324, Republic of Korea.
  • Goh M; Department of Chemical Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea. Electronic address: mgoh@konkuk.ac.kr.
Waste Manag ; 118: 190-196, 2020 Dec.
Article en En | MEDLINE | ID: mdl-32892095
The properties of infusibility and insolubility in organic solvent of cured epoxy resin makes it difficult to recycle carbon fiber reinforced plastics (CFRP). We have reported the recycling of CFRPs using the oxidizing power of hydroxyl radicals generated from NaOCl solution. In our study, we used benzyltrimethylammonium bromide (BTAB) and sodium dodecyl sulfate (SDS) for the interfacial separation between the epoxy resin and carbon fibers (CF). The surfactant system maximized recycling efficiency in both pretreatment and the main reaction of the CFRP recycling process. In the second step, the reaction time to successfully reclaim the CFs was much shorter, only one hour, compared with the two-hour reaction time for the non-SDS process previously reported by us. Scanning electron microscope images and Raman analyses showed that the surface of the reclaimed CF (r-CFs) was clean and smooth without any defects, and there was no significant structural change compared to virgin CF (v-CFs). The tensile strength of r-CF was 3.42 GPa which is 96.9% of the v-CF. Thus, the CFRP recycling process using SDS not only results in r-CF with good mechanical and physical properties, but also increases recycling efficiency by reducing the time.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carbono / Fibra de Carbono Idioma: En Revista: Waste Manag Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2020 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carbono / Fibra de Carbono Idioma: En Revista: Waste Manag Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2020 Tipo del documento: Article Pais de publicación: Estados Unidos