Mechanical Properties and Equilibrium Swelling Characteristics of Some Polymer Composites Based on Ethylene Propylene Diene Terpolymer (EPDM) Reinforced with Hemp Fibers

Autor:	Maria Daniela Stelescu, Anton Airinei, Alexandra Bargan, Nicusor Fifere, Mihai Georgescu, Maria Sonmez, Mihaela Nituica, Laurentia Alexandrescu, Adriana Stefan
Rok vydání:	2022
Předmět:	EPDM rubber hemp fiber crosslink density mechanical properties water uptake reinforcement General Materials Science
Zdroj:	Materials; Volume 15; Issue 19; Pages: 6838
ISSN:	1996-1944
Popis:	EPDM/hemp fiber composites with fiber loading of 0–20 phr were prepared by the blending technique on a laboratory electrically heated roller mill. Test specimens were obtained by vulcanization using a laboratory hydraulic press. The elastomer crosslinking and the chemical modification of the hemp fiber surface were achieved by a radical reaction mechanism initiated by di(tert-butylperoxyisopropyl)benzene. The influence of the fiber loading on the mechanical properties, gel fraction, swelling ratio and crosslink degree was investigated. The gel fraction, crosslink density and rubber–hemp fiber interaction were evaluated based on equilibrium solvent-swelling measurements using the Flory–Rehner relation and Kraus and Lorenz–Park equations. The morphology of the EPDM/hemp fiber composites was analyzed by scanning electron microscopy. The water absorption increases as the hemp fiber loading increases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07ee08554525fc2896f734a53577c025 https://pubmed.ncbi.nlm.nih.gov/36234179 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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