IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

The unusual reinforcement mechanism exhibited by silica in epoxidized natural rubber (ENR) may be attributed to the specific chemical interaction or the chemical cross-linking taking place between silica and the epoxy groups while heating the mix. Evidence for the higher interaction is established through rheometric studies conducted at 180°C and changes in the dynamic mechanical characteristics studied over a wide temperature range using a dynamic viscoelastometer for the heated and unheated silica-filled mixes.

Department Of Chemical Engineering

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Chemical interaction between epoxidized natural rubber and silica: Studies on cure characteristics and low-temperature dynamic mechanical properties

Dynamic mechanical properties of carbon black and clay filled epoxidised natural rubber have been studied over a wide range of temperature and varying dynamic strain conditions. Low temperature studies indicated the absence of an adsorbed layer of elastomer around the clay particles for the various loadings studied. Low strain properties under room temperature condi tions were found to be dependent on the transient aggregate structure existing in the case of carbon black filled vulcanizates whereas for clay, except the hydrodynamic effect, no other profound effect could be observed under the low loading conditions studied. From the physical property studies also it may be concluded that there is no profound reinforcing mechanism operating in the case of clay and ENR. © 1991, Sage Publications. All rights reserved.

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Journal of Elastomers and Plastics

Strain Dependent Dynamic Mechanical Properties of Carbon Black and Clay Filled Epoxidised Natural Rubber Vulcanizates

poxidized natural rubber with an epoxide content of 50 mol% was found to be a novel adhesive for bonding aluminium to aluminium. The conditions for obtaining maximum joint strength were optimized by varying the mastication time and moulding conditions such as time, temperature, and pressure. © VSP 1990.