Response surface optimisation and curing kinetic study of NR/SBR based tyre tread formulation in the presence of expanded clay

Shiva M., . and Haddadi A. H., . Response surface optimisation and curing kinetic study of NR/SBR based tyre tread formulation in the presence of expanded clay. pp. 135-158. ISSN 1511-1768

A zinc stearate intercalated montmorillonite ZnSt-MMT was synthesised and partly replaced with carbon black in an NR/SBR based truck tyre tread formulation. The XRD results revealed that the basal spacing of the organoclay has been successfully expanded in the rubber network. A central composite design was employed to study the cis BR substitution (with NR) change of oil and sulphur content on the physical properties of carbon black/ZnSt-MMT-filled NR/SBR compounds. The response surface models for tensile strength modulus elongation heat buildup (HBU) DeMattia cut growth (DCG) abrasion hardness and delta torque of vulcanisates were developed and employed for optimisation through nonlinear programming algorithm framework. It was observed that the formulations with better balance of properties than reference may derive from response surface methodology (RSM) optimisation framework in the presence of ZnSt organoclay. A kinetic study was conducted on the basis of the rheometry data. It was observed that the Isayev and Deng kinetic model were able to fit all experimental design points with very high accuracy.

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Abstract

A zinc stearate intercalated montmorillonite ZnSt-MMT was synthesised and partly replaced with carbon black in an NR/SBR based truck tyre tread formulation. The XRD results revealed that the basal spacing of the organoclay has been successfully expanded in the rubber network. A central composite design was employed to study the cis BR substitution (with NR) change of oil and sulphur content on the physical properties of carbon black/ZnSt-MMT-filled NR/SBR compounds. The response surface models for tensile strength modulus elongation heat buildup (HBU) DeMattia cut growth (DCG) abrasion hardness and delta torque of vulcanisates were developed and employed for optimisation through nonlinear programming algorithm framework. It was observed that the formulations with better balance of properties than reference may derive from response surface methodology (RSM) optimisation framework in the presence of ZnSt organoclay. A kinetic study was conducted on the basis of the rheometry data. It was observed that the Isayev and Deng kinetic model were able to fit all experimental design points with very high accuracy.

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Item Type:	Article
AGROVOC Term:	Natural rubber
AGROVOC Term:	Physical properties
AGROVOC Term:	Mechanical properties
AGROVOC Term:	Heating
AGROVOC Term:	Mixing
AGROVOC Term:	Filtering
AGROVOC Term:	Vulcanization
AGROVOC Term:	Experimental design
AGROVOC Term:	Formulations
AGROVOC Term:	Analysis of variance
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/23652

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