Correlation between Curing Temperature and the Properties of Conductive Composites

Abstract:

This study was carried out to discuss the influence of curing temperature on the performance of conductive composites filled with nickel-coated graphite (NCG). The electrical conductivity, crosslink density, mechanical properties and tensile fracture morphology have been investigated. The results indicated that curing temperature had great impact on the electrical conductivity and mechanical properties. Voluem resistivity decreased from 43.1 to 0.08 ohm-cm at 125°C-205°C, and the reason was discussed in light of formation and break of the conductive network in the composites. The stability of SR-NCG cured at 165°C-205°C were also better than those cured at other curing temperature. Besides, tensile strength increased from 2.41 to 7.19Mpa at 125°C-225°C, elongation at break have a 56% increase, and Shore A hardness also incresed from 74 to 82.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 119-122
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.119
• Online since: August 2013
• Authors: Xiao Ya Wang, Zhi Dong Xia, Zhe Li
• Keywords: Conductive Silicone Rubber, Crosslink Density, Curing Temperature, Mechanical Property, Volume Resistivity

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