Compression Molding Anisotropy of Natural Rubber Compounds

Compression Molding Anisotropy of Natural Rubber Compounds

By studying the physical properties of natural rubber compounds cured by compression in a test mold which has a unidirectional outer flow of excess rubber from the mold when vulcanization starts, we found that the tear strength of the test pieces where the direction of the stretching was parallel to...

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Veröffentlicht in:NIPPON GOMU KYOKAISHI 2009, Vol.82(9), pp.375-381
Hauptverfasser: MURAMATSU, Ryo, TAKEZAWA, Hironori, KOMAMIZU, Kenji
Format: Artikel
Sprache:eng
Schlagworte:
Anisotropy
Coarse-grained Molecular Dynamics
Compression Mold
Mold Flow
Natural Rubber
OCTA
Tear Strength
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creator MURAMATSU, Ryo
TAKEZAWA, Hironori
KOMAMIZU, Kenji
description By studying the physical properties of natural rubber compounds cured by compression in a test mold which has a unidirectional outer flow of excess rubber from the mold when vulcanization starts, we found that the tear strength of the test pieces where the direction of the stretching was parallel to the outer flow was lower than that of the test pieces with the direction perpendicular to it. Similar anisotropies were also observed in tensile strength, modulus, tanδ, Payne's effect, etc. Some anisotropies similar to the experiments were observed in the OCTA calculation with a non-crosslinked natural rubber model. The causes of anisotropies were considered.
doi_str_mv 10.2324/gomu.82.375
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subjects Anisotropy
Coarse-grained Molecular Dynamics
Compression Mold
Mold Flow
Natural Rubber
OCTA
Tear Strength
title Compression Molding Anisotropy of Natural Rubber Compounds
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