Electrically conductive sealing silicone compositions filled with carbon materials
DOI:
https://doi.org/10.18321/cpc20(4)349-357Keywords:
Electrically conductive sealing silicone compositions filled with carbon materialsAbstract
Electrically conductive sealants and coatings have been of great interest in recent years due to the development of electronics and technology. A lot of research is being conducted in this field to study the electrically conductive properties of composites filled with various carbon materials. However, there are not many studies where siloxanes are used as matrices. The purpose of this work was to obtain an inexpensive electrically conductive composite using a silicone matrix and carbon fillers: carbon black, graphite, coal. The best filler for an electrically conductive sealant was carbon black (30 wt.%) demonstrated electrical conductivity of 1.11×102 (Ohm×m)-1. However, an increase in the carbon black content in the matrix negatively affected the physical and mechanical properties, the conditional tensile strength decreased by 42%, the elongation at break by 37%. The resulting composite can be used as an electrically conductive sealing material, however, if necessary, improvements in physical and mechanical characteristics are preserved.
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