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Innovative chemical process for recycling thermosets cured with recyclamines® by converting bio-epoxy composites in reusable thermoplastic-an LCA study
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2018 (English)In: Materials, ISSN 1996-1944, E-ISSN 1996-1944, Vol. 11, no 3, article id 353Article in journal (Refereed) Published
Abstract [en]

An innovative recycling process for thermoset polymer composites developed by Connora Technologies (Hayward, CA, USA) was studied. The process efficacy has already been tested, and it is currently working at the plant level. The main aspect investigated in the present paper was the environmental impact by means of the Life Cycle Assessment (LCA) method. Because of the need to recycle and recover materials at their end of life, the Connora process creates a great innovation in the market of epoxy composites, as they are notoriously not recyclable. Connora Technologies developed a relatively gentle chemical recycling process that induces the conversion of thermosets into thermoplastics. The LCA demonstrated that low environmental burdens are associated with the process itself and, furthermore, impacts are avoided due to the recovery of the epoxy-composite constituents (fibres and matrix). A carbon fibre (CF) epoxy-composite panel was produced through Vacuum Resin Transfer Moulding (VRTM) and afterwards treated using the Connora recycling process. The LCA results of both the production and the recycling phases are reported.

Place, publisher, year, edition, pages
MDPI AG , 2018. Vol. 11, no 3, article id 353
Keywords [en]
Epoxy recovery, LCA, Polymer recycling, Vacuum Resin Transfer Moulding, Carbon, Carbon fibers, Environmental impact, Life cycle, Molding, Recovery, Recycling, Reinforced plastics, Resin transfer molding, Resins, Thermosets, Chemical process, Chemical recycling, Environmental burdens, Epoxy composite, Life Cycle Assessment (LCA), Recycling process, Thermoset polymers, Epoxy resins
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-227430DOI: 10.3390/ma11030353Scopus ID: 2-s2.0-85042732228OAI: oai:DiVA.org:kth-227430DiVA, id: diva2:1210449
Note

Export Date: 9 May 2018; Article; Correspondence Address: La Rosa, A.D.; Department of Civil Engineering and Architecture and INSTM UdR, University of Catania, Viale A. Doria 6, Italy; email: dlarosa@unict.it. QC 20180528

Available from: 2018-05-28 Created: 2018-05-28 Last updated: 2018-05-28Bibliographically approved

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Björklund, Anna

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