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HomeMaterials Science ForumMaterials Science Forum Vol. 1139Exploring Peculiar Properties of Graded Rubber

Exploring Peculiar Properties of Graded Rubber

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Abstract:

A styrene-butadiene rubber having a gradient crosslink density in the thickness direction was simply prepared by vulcanizing under a temperature gradient to study its mechanical properties and swelling behavior. The graded rubber exhibited considerable strain recovery after stress removal despite having a low crosslinked part. Notably, the graded rubber also manifested greater hysteresis loss during cyclic test compared to a homogeneously crosslinked rubber, even though they had similar initial moduli. Furthermore, anomalous swelling behavior was observed in the graded rubber. The graded rubber exhibited shape transformation upon swelling. The mechanism was thoroughly explained using gel swelling theory under constraints. This must be a common phenomenon in graded rubbers with a crosslink gradient in the thickness direction. This comprehensive research provides a novel approach for material design with tailored properties and promising applications for this potential material.

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International Conference on Advanced Materials and Technology (ICAMT)

Polymers, Steel, Alloys and Metal Corrosion

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Periodical:

Materials Science Forum (Volume 1139)

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79-86

DOI:

https://doi.org/10.4028/p-lfFf6X

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Online since:

December 2024

Authors:

Quoc Viet Do*, Masayuki Yamaguchi

Keywords:

Graded Rubber, Hysteresis Loss, Strain Recovery, Surface Instability, Swelling

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© 2024 Trans Tech Publications Ltd. All Rights Reserved

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