Abstract
Ternary composites of natural rubber filled with particulate carbonaceous and metal fillers were developed for
electro-mechanical sensing purposes, while maintaining good elasticity and loading capability. The effects of filler type and
composition on electrical and mechanical properties of binary and ternary conductive composites have been examined. The
typical mechanical-compounding and molding processes for rubbers were used for this study. As observed, the binary composite
containing 50 phr carbon black in natural rubber was the superior conductive composite for a pressure sensor based on
its balance of compression set and electrical conductivity. At the same total filler content, a third metal component filler
decreases the electrical conductivity of the binary composites. In addition, the third component of metal fillers deteriorates
the compression set of the composites.
Keywords: ternary composite, conductive rubber, electrical conductivity, capacitance, conductive filler
AbstractTernary composites of natural rubber filled with particulate carbonaceous and metal fillers were developed forelectro-mechanical sensing purposes, while maintaining good elasticity and loading capability. The effects of filler type andcomposition on electrical and mechanical properties of binary and ternary conductive composites have been examined. Thetypical mechanical-compounding and molding processes for rubbers were used for this study. As observed, the binary compositecontaining 50 phr carbon black in natural rubber was the superior conductive composite for a pressure sensor based onits balance of compression set and electrical conductivity. At the same total filler content, a third metal component fillerdecreases the electrical conductivity of the binary composites. In addition, the third component of metal fillers deterioratesthe compression set of the composites.Keywords: ternary composite, conductive rubber, electrical conductivity, capacitance, conductive filler
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