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Improvement of performance of a ductile/brittle polymer system by graphite nanoplatelets: effect of component coupling

SYSNO ASEP	0476852
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Improvement of performance of a ductile/brittle polymer system by graphite nanoplatelets: effect of component coupling
Author(s)	Kelnar, Ivan (UMCH-V)_{RID, ORCID} Kratochvíl, Jaroslav (UMCH-V)_RID Kaprálková, Ludmila (UMCH-V) Nevoralová, Martina (UMCH-V)_{RID, ORCID} Janata, Miroslav (UMCH-V)_RID Fortelný, Ivan (UMCH-V)_RID Zhigunov, Alexander (UMCH-V)_{RID, ORCID} Dybal, Jiří (UMCH-V)_{RID, ORCID}
Source Title	RSC Advances. - : Royal Society of Chemistry Roč. 7, č. 59 (2017), s. 37331-37339
Number of pages	9 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	graphite nanoplatelets ; polyamide 6 ; polystyrene
Subject RIV	JI - Composite Materials
OECD category	Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
R&D Projects	GA16-03194S GA ČR - Czech Science Foundation (CSF)
Institutional support	UMCH-V - RVO:61389013
UT WOS	000406705700056
EID SCOPUS	85026785085
DOI	10.1039/C7RA06611B
Annotation	Addition of a high-modulus polymer to a pseudo-ductile matrix may lead to increased strength, stiffness and toughness. This can be achieved by plastic deformation of a well-dispersed phase with higher modulus and lower Poisson's ratio compared with the matrix. Recently, this system has also been successfully modified by organophilized montmorillonite. In this work, a reactively compatibilized PA6/PS system is upgraded using modified graphite nanoplatelets (GNP) in combination with their simultaneous coupling to polymer components. The best balanced mechanical properties have been obtained in the case of the combination of amine-modified GNP with a styrene maleic-anhydride copolymer. Here, coupling of both polymer phases with GNP could take place. Structure of the in situ formed adduct can be controlled by component ratio and mixing protocols. The complex effect of such modified GNP on the system behaviour, including favourable change of components parameters and modification of the interface, is discussed.
Workplace	Institute of Macromolecular Chemistry
Contact	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Year of Publishing	2018

Number of the records: 1