Enhanced Tensile Properties of Multi-Walled Carbon Nanotubes Filled Polyamide 6 Composites Based on Interface Modification and Reactive Extrusion
To induce uniform dispersion and excellent interfacial properties, we adopted a strategy of combining both polyamide 6 (PA6) grafting for multi-walled carbon nanotubes (MWCNTs) and reactive extrusion of PA6 matrix, based on anionic ring-opening polymerization of ε-caprolactam (CL). Compared to –COOH...
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doaj-65197a7819a74ceba26289c6e8523c322020-11-25T03:31:16ZengMDPI AGPolymers2073-43602020-04-011299799710.3390/polym12050997Enhanced Tensile Properties of Multi-Walled Carbon Nanotubes Filled Polyamide 6 Composites Based on Interface Modification and Reactive ExtrusionMin Park0Ji-un Jang1Jong Hyuk Park2Jaesang Yu3Seong Yun Kim4Korea Institute of Science and Technology (KIST), Seoul 02792, KoreaKorea Institute of Science and Technology (KIST), Seoul 02792, KoreaKorea Institute of Science and Technology (KIST), Seoul 02792, KoreaKorea Institute of Science and Technology (KIST), Seoul 02792, KoreaDivision of Polymer-Nano & Textile Engineering, Chonbuk National University, Jeonju-si 54896, KoreaTo induce uniform dispersion and excellent interfacial properties, we adopted a strategy of combining both polyamide 6 (PA6) grafting for multi-walled carbon nanotubes (MWCNTs) and reactive extrusion of PA6 matrix, based on anionic ring-opening polymerization of ε-caprolactam (CL). Compared to –COOH and –NCO treatments of MWCNTs, enhanced MWCNT dispersion and tensile properties of the composites were achieved using the applied strategy, and the tensile strength and modulus of the PA6-grafted MWCNT-filled PA6 composites were 5.3% and 20.5% higher than those of the purified MWCNT-filled PA6 composites, respectively. In addition, they were almost similar to the theoretical ones calculated by the modified Mori–Tanaka method (MTM) assuming a perfect interface, indicating that the tensile properties of MWCNT-filled PA6 composites can be optimized by PA6 grafting and reactive extrusion based on the anionic ring-opening polymerization of CL due to uniform MWCNT dispersion and excellent interfacial property.https://www.mdpi.com/2073-4360/12/5/997polymer-matrix compositescarbon nanotubesmicro-mechanics |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Min Park Ji-un Jang Jong Hyuk Park Jaesang Yu Seong Yun Kim |
spellingShingle |
Min Park Ji-un Jang Jong Hyuk Park Jaesang Yu Seong Yun Kim Enhanced Tensile Properties of Multi-Walled Carbon Nanotubes Filled Polyamide 6 Composites Based on Interface Modification and Reactive Extrusion Polymers polymer-matrix composites carbon nanotubes micro-mechanics |
author_facet |
Min Park Ji-un Jang Jong Hyuk Park Jaesang Yu Seong Yun Kim |
author_sort |
Min Park |
title |
Enhanced Tensile Properties of Multi-Walled Carbon Nanotubes Filled Polyamide 6 Composites Based on Interface Modification and Reactive Extrusion |
title_short |
Enhanced Tensile Properties of Multi-Walled Carbon Nanotubes Filled Polyamide 6 Composites Based on Interface Modification and Reactive Extrusion |
title_full |
Enhanced Tensile Properties of Multi-Walled Carbon Nanotubes Filled Polyamide 6 Composites Based on Interface Modification and Reactive Extrusion |
title_fullStr |
Enhanced Tensile Properties of Multi-Walled Carbon Nanotubes Filled Polyamide 6 Composites Based on Interface Modification and Reactive Extrusion |
title_full_unstemmed |
Enhanced Tensile Properties of Multi-Walled Carbon Nanotubes Filled Polyamide 6 Composites Based on Interface Modification and Reactive Extrusion |
title_sort |
enhanced tensile properties of multi-walled carbon nanotubes filled polyamide 6 composites based on interface modification and reactive extrusion |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2020-04-01 |
description |
To induce uniform dispersion and excellent interfacial properties, we adopted a strategy of combining both polyamide 6 (PA6) grafting for multi-walled carbon nanotubes (MWCNTs) and reactive extrusion of PA6 matrix, based on anionic ring-opening polymerization of ε-caprolactam (CL). Compared to –COOH and –NCO treatments of MWCNTs, enhanced MWCNT dispersion and tensile properties of the composites were achieved using the applied strategy, and the tensile strength and modulus of the PA6-grafted MWCNT-filled PA6 composites were 5.3% and 20.5% higher than those of the purified MWCNT-filled PA6 composites, respectively. In addition, they were almost similar to the theoretical ones calculated by the modified Mori–Tanaka method (MTM) assuming a perfect interface, indicating that the tensile properties of MWCNT-filled PA6 composites can be optimized by PA6 grafting and reactive extrusion based on the anionic ring-opening polymerization of CL due to uniform MWCNT dispersion and excellent interfacial property. |
topic |
polymer-matrix composites carbon nanotubes micro-mechanics |
url |
https://www.mdpi.com/2073-4360/12/5/997 |
work_keys_str_mv |
AT minpark enhancedtensilepropertiesofmultiwalledcarbonnanotubesfilledpolyamide6compositesbasedoninterfacemodificationandreactiveextrusion AT jiunjang enhancedtensilepropertiesofmultiwalledcarbonnanotubesfilledpolyamide6compositesbasedoninterfacemodificationandreactiveextrusion AT jonghyukpark enhancedtensilepropertiesofmultiwalledcarbonnanotubesfilledpolyamide6compositesbasedoninterfacemodificationandreactiveextrusion AT jaesangyu enhancedtensilepropertiesofmultiwalledcarbonnanotubesfilledpolyamide6compositesbasedoninterfacemodificationandreactiveextrusion AT seongyunkim enhancedtensilepropertiesofmultiwalledcarbonnanotubesfilledpolyamide6compositesbasedoninterfacemodificationandreactiveextrusion |
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