Mechanical properties of polymer grafted nanoparticle composites

Polymer nanocomposites have improved mechanical, optical and thermal properties compared to traditional thermoplastics. To study the impact of grafted brush–matrix interactions on the mechanical properties of nanoparticle filled polymers, uniaxial tensile testing with digital image correlation (DIC)...

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Autores principales:	Marissa Giovino, Julia Pribyl, Brian Benicewicz, Ronald Bucinell, Linda Schadler
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2018
Materias:	nanocomposite toughening mechanical properties particle debonding polymer matrix plastic void growth grafted brush raft polymerization Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/808b75de982043d98011483e43e1f649
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spelling	oai:doaj.org-article:808b75de982043d98011483e43e1f6492021-12-02T13:41:51ZMechanical properties of polymer grafted nanoparticle composites2055-033210.1080/20550324.2018.1560988https://doaj.org/article/808b75de982043d98011483e43e1f6492018-10-01T00:00:00Zhttp://dx.doi.org/10.1080/20550324.2018.1560988https://doaj.org/toc/2055-0332Polymer nanocomposites have improved mechanical, optical and thermal properties compared to traditional thermoplastics. To study the impact of grafted brush–matrix interactions on the mechanical properties of nanoparticle filled polymers, uniaxial tensile testing with digital image correlation (DIC) was done on polystyrene (PS) grafted SiO2 in low molecular weight (MW) (N ∼ P), N = degree of polymerization of grafted brush, P = degree of polymerization of matrix, and high MW (2N = P) matrices at different loadings. The low matrix MW composites had higher strength than high MW composites at high loading but lower strength than the pure matrix. The high matrix MW composites had higher toughness at low loadings. SEM images of fracture surfaces revealed particle debonding and plastic void growth in the high toughness samples. The results show that the P/N ratio of polymer grafted nanoparticle composites is important for controlling the mechanical properties of polymer nanocomposites.Marissa GiovinoJulia PribylBrian BenicewiczRonald BucinellLinda SchadlerTaylor & Francis Grouparticlenanocompositetougheningmechanical propertiesparticle debondingpolymer matrixplastic void growthgrafted brushraft polymerizationMaterials of engineering and construction. Mechanics of materialsTA401-492Polymers and polymer manufactureTP1080-1185ENNanocomposites, Vol 4, Iss 4, Pp 244-252 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	nanocomposite toughening mechanical properties particle debonding polymer matrix plastic void growth grafted brush raft polymerization Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
spellingShingle	nanocomposite toughening mechanical properties particle debonding polymer matrix plastic void growth grafted brush raft polymerization Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185 Marissa Giovino Julia Pribyl Brian Benicewicz Ronald Bucinell Linda Schadler Mechanical properties of polymer grafted nanoparticle composites
description	Polymer nanocomposites have improved mechanical, optical and thermal properties compared to traditional thermoplastics. To study the impact of grafted brush–matrix interactions on the mechanical properties of nanoparticle filled polymers, uniaxial tensile testing with digital image correlation (DIC) was done on polystyrene (PS) grafted SiO2 in low molecular weight (MW) (N ∼ P), N = degree of polymerization of grafted brush, P = degree of polymerization of matrix, and high MW (2N = P) matrices at different loadings. The low matrix MW composites had higher strength than high MW composites at high loading but lower strength than the pure matrix. The high matrix MW composites had higher toughness at low loadings. SEM images of fracture surfaces revealed particle debonding and plastic void growth in the high toughness samples. The results show that the P/N ratio of polymer grafted nanoparticle composites is important for controlling the mechanical properties of polymer nanocomposites.
format	article
author	Marissa Giovino Julia Pribyl Brian Benicewicz Ronald Bucinell Linda Schadler
author_facet	Marissa Giovino Julia Pribyl Brian Benicewicz Ronald Bucinell Linda Schadler
author_sort	Marissa Giovino
title	Mechanical properties of polymer grafted nanoparticle composites
title_short	Mechanical properties of polymer grafted nanoparticle composites
title_full	Mechanical properties of polymer grafted nanoparticle composites
title_fullStr	Mechanical properties of polymer grafted nanoparticle composites
title_full_unstemmed	Mechanical properties of polymer grafted nanoparticle composites
title_sort	mechanical properties of polymer grafted nanoparticle composites
publisher	Taylor & Francis Group
publishDate	2018
url	https://doaj.org/article/808b75de982043d98011483e43e1f649
work_keys_str_mv	AT marissagiovino mechanicalpropertiesofpolymergraftednanoparticlecomposites AT juliapribyl mechanicalpropertiesofpolymergraftednanoparticlecomposites AT brianbenicewicz mechanicalpropertiesofpolymergraftednanoparticlecomposites AT ronaldbucinell mechanicalpropertiesofpolymergraftednanoparticlecomposites AT lindaschadler mechanicalpropertiesofpolymergraftednanoparticlecomposites
_version_	1718392564270235648

Mechanical properties of polymer grafted nanoparticle composites

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