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Functionalised graphene effect on the mechanical and thermal properties of recycled PA6/PA6,6 blends / Feras Korkees; Abdullah Aldrees; Imad Barsoum; Dalal Alshammari

Journal of Composite Materials, Start page: 002199832098789

Swansea University Author: Feras, Korkees

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Abstract

Limiting the generation of polymers waste and maximizing their recyclability and recovery have been the main focus of the research and industry in recent years. Recycling of polyamides leads to the loss in mechanical and thermal properties, therefore, in order to reuse recycled nylons, an enhancemen...

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Published in: Journal of Composite Materials
ISSN: 0021-9983 1530-793X
Published: SAGE Publications 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56119
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spelling 2021-02-17T17:57:10.0779507 v2 56119 2021-01-25 Functionalised graphene effect on the mechanical and thermal properties of recycled PA6/PA6,6 blends 4d34f40e38537261da3ad49a0dd2be09 0000-0002-5131-6027 Feras Korkees Feras Korkees true false 2021-01-25 EEN Limiting the generation of polymers waste and maximizing their recyclability and recovery have been the main focus of the research and industry in recent years. Recycling of polyamides leads to the loss in mechanical and thermal properties, therefore, in order to reuse recycled nylons, an enhancement in their properties is desired. Enhancing the properties of recycled polyamides by the addition of functionalised graphene nanoparticles (GNPs) was the goal of this study. Recycled PA6/PA6,6 blends and functionalised graphene nanocomposites were prepared using hot-melt extrusion process. Two types of functionalised graphene were used: O2-GNPs and Amine-GNPs. The nanofillers didn’t affect the crystallinity of the recycled nylon, while the presence of functionalised graphene increased the thermal conductivity by enabling better heat transfer routes within the polymer. The microstructure of the materials was characterised confirming the successful dispersion but with a slight variation in GNPs/Polymer bonding depending on the functionalisation type. The strong nylon-to-graphene interfacial hydrogen bonding increased the mechanical properties of the recycled nylon nanocomposites. The functionalised nanoparticles slowed down the segmental motion of the polymer chain and decreased the ductility with increasing GNPs contents up to 10 wt%. The overall behaviour of recycled nylon nanocomposites showed dependency on the type of functionalisation and concentration of GNPs with better improvement in the overall properties using 2 wt% Amine-GNPs. These enhanced properties make functionalised graphene/recycled nylon nanocomposites a promising new class of advanced materials. Journal Article Journal of Composite Materials 002199832098789 SAGE Publications 0021-9983 1530-793X Nanocomposites, polyamide, mechanical properties, thermal properties, polymer blends 14 1 2021 2021-01-14 10.1177/0021998320987897 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2021-02-17T17:57:10.0779507 2021-01-25T09:18:53.2418609 College of Engineering Engineering Feras Korkees 0000-0002-5131-6027 1 Abdullah Aldrees 2 Imad Barsoum 3 Dalal Alshammari 4 56119__19161__cfe227301e0d4d65a2046165f8cf04fa.pdf 56119.pdf 2021-01-25T09:21:00.8998562 Output 1505722 application/pdf Proof true This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License true eng
title Functionalised graphene effect on the mechanical and thermal properties of recycled PA6/PA6,6 blends
spellingShingle Functionalised graphene effect on the mechanical and thermal properties of recycled PA6/PA6,6 blends
Feras, Korkees
title_short Functionalised graphene effect on the mechanical and thermal properties of recycled PA6/PA6,6 blends
title_full Functionalised graphene effect on the mechanical and thermal properties of recycled PA6/PA6,6 blends
title_fullStr Functionalised graphene effect on the mechanical and thermal properties of recycled PA6/PA6,6 blends
title_full_unstemmed Functionalised graphene effect on the mechanical and thermal properties of recycled PA6/PA6,6 blends
title_sort Functionalised graphene effect on the mechanical and thermal properties of recycled PA6/PA6,6 blends
author_id_str_mv 4d34f40e38537261da3ad49a0dd2be09
author_id_fullname_str_mv 4d34f40e38537261da3ad49a0dd2be09_***_Feras, Korkees
author Feras, Korkees
author2 Feras Korkees
Abdullah Aldrees
Imad Barsoum
Dalal Alshammari
format Journal article
container_title Journal of Composite Materials
container_start_page 002199832098789
publishDate 2021
institution Swansea University
issn 0021-9983
1530-793X
doi_str_mv 10.1177/0021998320987897
publisher SAGE Publications
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description Limiting the generation of polymers waste and maximizing their recyclability and recovery have been the main focus of the research and industry in recent years. Recycling of polyamides leads to the loss in mechanical and thermal properties, therefore, in order to reuse recycled nylons, an enhancement in their properties is desired. Enhancing the properties of recycled polyamides by the addition of functionalised graphene nanoparticles (GNPs) was the goal of this study. Recycled PA6/PA6,6 blends and functionalised graphene nanocomposites were prepared using hot-melt extrusion process. Two types of functionalised graphene were used: O2-GNPs and Amine-GNPs. The nanofillers didn’t affect the crystallinity of the recycled nylon, while the presence of functionalised graphene increased the thermal conductivity by enabling better heat transfer routes within the polymer. The microstructure of the materials was characterised confirming the successful dispersion but with a slight variation in GNPs/Polymer bonding depending on the functionalisation type. The strong nylon-to-graphene interfacial hydrogen bonding increased the mechanical properties of the recycled nylon nanocomposites. The functionalised nanoparticles slowed down the segmental motion of the polymer chain and decreased the ductility with increasing GNPs contents up to 10 wt%. The overall behaviour of recycled nylon nanocomposites showed dependency on the type of functionalisation and concentration of GNPs with better improvement in the overall properties using 2 wt% Amine-GNPs. These enhanced properties make functionalised graphene/recycled nylon nanocomposites a promising new class of advanced materials.
published_date 2021-01-14T04:21:58Z
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