Abstract
This research is focused on the rice husk (RH) that acts as natural filler in Standard Malaysian Rubber (SMR L). Two ranges of RH size were prepared, coarser size at 10-20 mm and fine size at 150-300 μm. While the RH loading was (10,20,30,40 and 50 Phr). The effects of RH on the tensile properties, physical properties and cure characteristics of the compounds were examined. The results shown that the increasing of rice husk loading in SMR L/RH composites led to decrease in the cure (t90) and scorch time (t2) and increase in the minimum torque (ML) and maximum torque (MH). Despite the values of tensile strength decreased as RH content increase, the physical properties, such as hardness and crosslink density of the composites, particularly the composite with fine size filler were improved due to good filler-rubber interaction than coarser size filler.
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