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Open AccessArticle

POSS Nanofiller-Induced Enhancement of the Thermomechanical Properties in a Fluoroelastomer Terpolymer

1
Laboratoire de Mécanique Gabriel Lamé, Université de Tours, Université d’Orléans, INSA Centre Val de Loire, Polytech Tours, 7 avenue Marcel Dassault BP40, 37004 Tours, France
2
Laboratoire PCM2E (Physico-Chimie des Matériaux et des Electrolytes pour l’Energie), Université de Tours, Parc de Grandmont, 37200 Tours, France
3
Zodiac Aerosafety Systems, 20 avenue Georges Pompidou, 37600 Loches, France
*
Author to whom correspondence should be addressed.
Materials 2018, 11(8), 1358; https://doi.org/10.3390/ma11081358
Received: 3 July 2018 / Revised: 2 August 2018 / Accepted: 3 August 2018 / Published: 6 August 2018
(This article belongs to the Special Issue Polymer Blends and Compatibilization 2018)
The present study reports on the use of three types of polyhedral oligomeric silsesquioxanes (POSS) nanoparticles with various organic substituents as fillers in a fluoroelastomer (FKM). A series of/POSS elastomer composite thin films is prepared. Microstructural SEM/TEM (scanning electron microscopy/transmission electron microscopy) imaging reveals a dispersion state allowing the presence of micron-sized domains. The influence of POSS content is studied in order to optimize thermal stability and mechanical properties of the composite thin films. Both POSS-A (with an acryloyl functional group and seven isobutyl substituents) and POSS-P (with eight phenyl substituents) lead to higher thermal stability and modulus of the composites, with respect to the unfilled FKM terpolymer matrix. covalent grafting of POSS-A onto the FKM network is found to play a critical role. Enhanced storage modulus in the rubbery plateau region (+210% at 200 °C for 20 phr) suggests that POSS-A is particularly suitable for high temperature applications. View Full-Text
Keywords: POSS; nanofillers; FKM; rubber; terpolymer; thermomechanical properties POSS; nanofillers; FKM; rubber; terpolymer; thermomechanical properties
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MDPI and ACS Style

Berthier, D.; Deffarges, M.-P.; Berton, N.; Venin, M.; Lacroix, F.; Schmaltz, B.; Tendron, Y.; Pestel, E.; Tran-Van, F.; Méo, S. POSS Nanofiller-Induced Enhancement of the Thermomechanical Properties in a Fluoroelastomer Terpolymer. Materials 2018, 11, 1358.

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