Next Article in Journal
Enhanced Olefin Transport by SiO2 Particles for Polymer/Ag Metal/Electron Acceptor Composite Membranes
Next Article in Special Issue
Effects of Hydrothermal Aging of Carbon Fiber Reinforced Polycarbonate Composites on Mechanical Performance and Sand Erosion Resistance
Previous Article in Journal
Expanded Polycarbonate (EPC)—A New Generation of High-Temperature Engineering Bead Foams
Previous Article in Special Issue
Design and Synthesis of Polysiloxane Based Side Chain Liquid Crystal Polymer for Improving the Processability and Toughness of Magnesium Hydrate/Linear Low-Density Polyethylene Composites

TPV: A New Insight on the Rubber Morphology and Mechanic/Elastic Properties

Univ-Lyon, Université Claude Bernard Lyon 1, Ingénierie des Matériaux Polymères, CNRS, UMR 5223, 15 Bd Latarjet, 69622 Villeurbanne CEDEX, France
Hutchinson, Centre de Recherche, Rue Gustave Nourry-B.P. 31, 45120-Chalette-sur-Loing, France
Author to whom correspondence should be addressed.
Polymers 2020, 12(10), 2315;
Received: 13 September 2020 / Revised: 6 October 2020 / Accepted: 7 October 2020 / Published: 10 October 2020
(This article belongs to the Special Issue Rheology and Processing of Polymers)
The objective of this work is to study the influence of the ratio between the elastomer (EPDM) phase and the thermoplastic phase (PP) in thermoplastic vulcanizates (TPVs) as well as the associated morphology of the compression set of the material. First, from a study of the literature, it is concluded that the rubber phase must be dispersed with a large distribution of the domain size in the thermoplastic phase in order to achieve a high concentration, i.e., a maximal packing fraction close to ~0.80. From this discussion, it is inferred that a certain degree of progress in the crosslinking reaction must be reached when the thermoplastic phase is melted during mixing in order to achieve dispersion of the elastomeric phase in the thermoplastic matrix under maximum stress. In terms of elasticity recovery which is measured from the compression set experiment, it is observed that the crosslinking agent nature (DCP or phenolic resin) has no influence in the case of a TPV compared with a pure crosslinked EPDM system. Then, the TPV morphology and the rubber phase concentration are the first order parameters in the compression set of TPVs. Finally, the addition of carbon black fillers leads to an improvement of the mechanical properties at break for the low PP concentration (20%). However, the localization of carbon black depends on the crosslinking chemistry nature. With radical chemistry by organic peroxide decomposition, carbon black is located at the interface of EPDM and PP acting as a compatibilizer. View Full-Text
Keywords: thermoplastic vulcanizates; morphology; compression set thermoplastic vulcanizates; morphology; compression set
Show Figures

Graphical abstract

MDPI and ACS Style

Hel, C.L.; Bounor-Legaré, V.; Catherin, M.; Lucas, A.; Thèvenon, A.; Cassagnau, P. TPV: A New Insight on the Rubber Morphology and Mechanic/Elastic Properties. Polymers 2020, 12, 2315.

AMA Style

Hel CL, Bounor-Legaré V, Catherin M, Lucas A, Thèvenon A, Cassagnau P. TPV: A New Insight on the Rubber Morphology and Mechanic/Elastic Properties. Polymers. 2020; 12(10):2315.

Chicago/Turabian Style

Hel, Cindy L., Véronique Bounor-Legaré, Mathilde Catherin, Antoine Lucas, Anthony Thèvenon, and Philippe Cassagnau. 2020. "TPV: A New Insight on the Rubber Morphology and Mechanic/Elastic Properties" Polymers 12, no. 10: 2315.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop