Mechanical Response and Processability of Wet-Laid Recycled Carbon Fiber PE, PA66 and PET Thermoplastic Composites

The interest in recycled carbon fiber (rCF) is growing rapidly and the supply chain for these materials is gradually being established. However, the processing routes, material intermediates and properties of rCF composites are less understood for designers to adopt them into practice. This paper pr...

Full description

Bibliographic Details
Main Authors: Uday Vaidya, Mark Janney, Keith Graham, Hicham Ghossein, Merlin Theodore
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Journal of Composites Science
Subjects:
Online Access:https://www.mdpi.com/2504-477X/6/7/198
_version_ 1797433469512450048
author Uday Vaidya
Mark Janney
Keith Graham
Hicham Ghossein
Merlin Theodore
author_facet Uday Vaidya
Mark Janney
Keith Graham
Hicham Ghossein
Merlin Theodore
author_sort Uday Vaidya
collection DOAJ
description The interest in recycled carbon fiber (rCF) is growing rapidly and the supply chain for these materials is gradually being established. However, the processing routes, material intermediates and properties of rCF composites are less understood for designers to adopt them into practice. This paper provides a practical pathway for rCFs in conjunction with low cost and, for the most part, commodity thermoplastic resins, namely polyethylene (PE), polyamide 66 (PA66) and polyethylene terephthalate (PET). Industrially relevant wet-laid (WL) process routes have been adopted to produce mats using two variants of WL mats, namely (a) high speed wet-laid inclined wire to produce broad good ‘roll’ forms and (b) 3DEP<sup>TM</sup> process patented by Materials Innovation Technologies (MIT)-recycled carbon fiber (RCF), now Carbon Conversions, which involves mixing fibers and water and depositing the fibers on a water-immersed mold. These are referred to as ‘sheet’ forms. The produced mats were evaluated for their processing into composites as ‘fully consolidated mats’ and ‘non-consolidated’ as-produced mats. Comprehensive mechanical data in terms of tensile strength, tensile modulus and impact toughness for rCF C/PE, C/PA66 and C/PET are presented. The work is of high value to sustainable composite designers and modelers.
first_indexed 2024-03-09T10:17:27Z
format Article
id doaj.art-88a3eaca69e64b6e9b35ac80f60027e2
institution Directory Open Access Journal
issn 2504-477X
language English
last_indexed 2024-03-09T10:17:27Z
publishDate 2022-07-01
publisher MDPI AG
record_format Article
series Journal of Composites Science
spelling doaj.art-88a3eaca69e64b6e9b35ac80f60027e22023-12-01T22:18:48ZengMDPI AGJournal of Composites Science2504-477X2022-07-016719810.3390/jcs6070198Mechanical Response and Processability of Wet-Laid Recycled Carbon Fiber PE, PA66 and PET Thermoplastic CompositesUday Vaidya0Mark Janney1Keith Graham2Hicham Ghossein3Merlin Theodore4Tickle College of Engineering, University of Tennessee, 1512 Middle Drive, Knoxville, TN 37996, USACarbon Conversions, Lake City, SC 29560, USACarbon Conversions, Lake City, SC 29560, USATickle College of Engineering, University of Tennessee, 1512 Middle Drive, Knoxville, TN 37996, USAManufacturing Sciences Division (MSD), Oak Ridge National Laboratory (ORNL), 2350 Cherahala Blvd, Oak Ridge, TN 37932, USAThe interest in recycled carbon fiber (rCF) is growing rapidly and the supply chain for these materials is gradually being established. However, the processing routes, material intermediates and properties of rCF composites are less understood for designers to adopt them into practice. This paper provides a practical pathway for rCFs in conjunction with low cost and, for the most part, commodity thermoplastic resins, namely polyethylene (PE), polyamide 66 (PA66) and polyethylene terephthalate (PET). Industrially relevant wet-laid (WL) process routes have been adopted to produce mats using two variants of WL mats, namely (a) high speed wet-laid inclined wire to produce broad good ‘roll’ forms and (b) 3DEP<sup>TM</sup> process patented by Materials Innovation Technologies (MIT)-recycled carbon fiber (RCF), now Carbon Conversions, which involves mixing fibers and water and depositing the fibers on a water-immersed mold. These are referred to as ‘sheet’ forms. The produced mats were evaluated for their processing into composites as ‘fully consolidated mats’ and ‘non-consolidated’ as-produced mats. Comprehensive mechanical data in terms of tensile strength, tensile modulus and impact toughness for rCF C/PE, C/PA66 and C/PET are presented. The work is of high value to sustainable composite designers and modelers.https://www.mdpi.com/2504-477X/6/7/198recycled carbon fiberthermoplasticswet-laid processingcompression molding
spellingShingle Uday Vaidya
Mark Janney
Keith Graham
Hicham Ghossein
Merlin Theodore
Mechanical Response and Processability of Wet-Laid Recycled Carbon Fiber PE, PA66 and PET Thermoplastic Composites
Journal of Composites Science
recycled carbon fiber
thermoplastics
wet-laid processing
compression molding
title Mechanical Response and Processability of Wet-Laid Recycled Carbon Fiber PE, PA66 and PET Thermoplastic Composites
title_full Mechanical Response and Processability of Wet-Laid Recycled Carbon Fiber PE, PA66 and PET Thermoplastic Composites
title_fullStr Mechanical Response and Processability of Wet-Laid Recycled Carbon Fiber PE, PA66 and PET Thermoplastic Composites
title_full_unstemmed Mechanical Response and Processability of Wet-Laid Recycled Carbon Fiber PE, PA66 and PET Thermoplastic Composites
title_short Mechanical Response and Processability of Wet-Laid Recycled Carbon Fiber PE, PA66 and PET Thermoplastic Composites
title_sort mechanical response and processability of wet laid recycled carbon fiber pe pa66 and pet thermoplastic composites
topic recycled carbon fiber
thermoplastics
wet-laid processing
compression molding
url https://www.mdpi.com/2504-477X/6/7/198
work_keys_str_mv AT udayvaidya mechanicalresponseandprocessabilityofwetlaidrecycledcarbonfiberpepa66andpetthermoplasticcomposites
AT markjanney mechanicalresponseandprocessabilityofwetlaidrecycledcarbonfiberpepa66andpetthermoplasticcomposites
AT keithgraham mechanicalresponseandprocessabilityofwetlaidrecycledcarbonfiberpepa66andpetthermoplasticcomposites
AT hichamghossein mechanicalresponseandprocessabilityofwetlaidrecycledcarbonfiberpepa66andpetthermoplasticcomposites
AT merlintheodore mechanicalresponseandprocessabilityofwetlaidrecycledcarbonfiberpepa66andpetthermoplasticcomposites