Open AccessDevelopment of SWCNTs-reinforced EPDM/SBR matrices for shock absorbing applications
Author(s) -
Ali Bahadar,
Mohammed Zwawi
Publication year - 2020
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ab71ce
Subject(s) - materials science , composite material , carbon nanotube , natural rubber , elastomer , elongation , viscoelasticity , nanocomposite , epdm rubber , ultimate tensile strength , polymer , styrene butadiene , thermal stability , styrene , chemical engineering , copolymer , engineering
The present research investigates the effects of various concentrations of single-walled carbon nanotubes (SWCNTs) on the viscoelastic and thermomechanical characteristics of styrenebutadiene/ethylene propylene diene polymer (SBR/EPDM) blended polymericmatrices (60:40). Standard elastomericmethods are used to synthesise SWCNTs-reinforced EPDM/SBRnanocomposite blends. The results reveal that high SWCNTs concentrations offer remarkable thermal stability enhancement. SWCNTs reinforcedwith 0.6mass%EPDM/SBRbecome 20%harder, with Tangent Delta values boosted by 70%withmaximum cross-linking, elongation enhanced by 38%and tensile strength improved by 35%.With the 38%elongation enhancement, storagemodulus is increased by 80%,whereas compressive strain is reduced by 20%. The planned hybrid nanocomposites exhibit viscoelastic characteristics against applied shock, inwhich the viscous component is associatedwith spongy structure, whereas the elastic component is associatedwith spring-like response.
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