Tensile properties and interfacial adhesion of silicone rubber/polyethylene blends by reactive blending

ABSTRACT Two‐phase blends of silicone rubber (SR) and linear low density polyethylene (LLDPE) were prepared by reactive blending using peroxide crosslinking agent of SR. The tensile strength and elastic modulus of the SR were found to be increased by reactive blending with LLDPE without sacrifice of...

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Bibliographic Details
Published inJournal of applied polymer science Vol. 135; no. 17
Main Authors Matsuura, Kana, Saito, Hiromu
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc 05.05.2018
Subjects
Adhesive strength
Blending
blends
Chemical reactions
Crosslinking
Deformation
Elongation
Low density polyethylenes
Materials science
mechanical properties
Modulus of elasticity
morphology
Polyethylene
Polymer blends
Polymers
Recoverability
rubber
Silicone resins
Silicone rubber
Tensile properties
Tensile strength
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Summary:ABSTRACT Two‐phase blends of silicone rubber (SR) and linear low density polyethylene (LLDPE) were prepared by reactive blending using peroxide crosslinking agent of SR. The tensile strength and elastic modulus of the SR were found to be increased by reactive blending with LLDPE without sacrifice of the elongation. The improvement of the tensile properties is attributed to the strong adhesion at the interface between SR matrix and LLDPE domain due to the chemical reaction by peroxide. The observation by polarized optical microscopies revealed that the debonding did not occur at the interface, but the LLDPE domains were elongated to longer one. Despite the elongation of the LLDPE domain, the blends exhibited good deformation recoverability. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46192.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.46192