A new comparison of sheet and crumb rubber. Part III. Vulcanisate properties for an ISAF tread mix

Bristow G. M., . and Sears A. G., . A new comparison of sheet and crumb rubber. Part III. Vulcanisate properties for an ISAF tread mix. pp. 141-165. ISSN 0127-7065

Complementary samples of RSS CVand crumb SMR CV covering the Mooney viscosity range ca. 50-85 were prepared from five lots of monoclonal latex. ISAF tread compounds were mixed from these samples and the physical properties of vulcanised test-pieces determined. The major difference between the vulcanisates was the greater stiffness or modulus of the samples based on RSS CV. This was apparent in both extension and compression and under static and dynamic conditions. Comparable differences were also apparent between the various monoclonal samples of both sheet and crumb rubber. There is limited evidence that these differences were due to variations in the degree of black reinforcement rather than variations in the extent of chemical crosslinking. Little or no difference was found between RSS CV and SMR CV vulcanisates in studies of tensile strength rebound resilience Goodrich heat build-up and resistance to fatigue and abrasion.

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Abstract

Complementary samples of RSS CVand crumb SMR CV covering the Mooney viscosity range ca. 50-85 were prepared from five lots of monoclonal latex. ISAF tread compounds were mixed from these samples and the physical properties of vulcanised test-pieces determined. The major difference between the vulcanisates was the greater stiffness or modulus of the samples based on RSS CV. This was apparent in both extension and compression and under static and dynamic conditions. Comparable differences were also apparent between the various monoclonal samples of both sheet and crumb rubber. There is limited evidence that these differences were due to variations in the degree of black reinforcement rather than variations in the extent of chemical crosslinking. Little or no difference was found between RSS CV and SMR CV vulcanisates in studies of tensile strength rebound resilience Goodrich heat build-up and resistance to fatigue and abrasion.

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Item Type:	Article
AGROVOC Term:	Rubber
AGROVOC Term:	Latex
AGROVOC Term:	Vulcanization
AGROVOC Term:	Mixing
AGROVOC Term:	Cross-linking
AGROVOC Term:	Physical properties
AGROVOC Term:	Tensile strength
AGROVOC Term:	Ageing
AGROVOC Term:	Resistance to temperature extremes
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/23527

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