Preparation And Characterization Of Green Rubber Foam From Reclaimed Rubber Glove

Amirul Asyraf, Mat Nasir (2013) Preparation And Characterization Of Green Rubber Foam From Reclaimed Rubber Glove. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This research studied the effect of sodium bicarbonate to foam size of rubber foam from reclaimed rubber glove. The advantages of using reclaimed rubber glove are reducing cost of raw materials, a part of good plasticity, easy to be mixed with raw rubber and requirement of low processing temperature. In this research, sodium bicarbonate was used as blowing agent to evaluate the effect of rubber foam on the physical properties such as density, relative density, expansion ratio, crosslink density, water absorption rate and mechanical properties such as compression strength and morphology through scanning electron microscopy (SEM). The expandable rubber samples were prepared using a Haake internal mixer and then expanded via heat transfer foaming process using a compression molding and an air circulating oven. In this study the physical properties of rubber foams were systematically correlated with its mechanical properties. The compression strength of the foam decreases with decreasing crosslink density and relative foam density which was associated with the formation of bigger foam cells and an increase in the number of cells per unit volume. This study is a preliminary study for the potential use of recycled rubber foam material as shoe insoles.

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