Abstract
The set of epoxy composites based on Alfa AesarTM carbon black (CB) (0–1.5 wt%) has been prepared. Dependence of shaft torque on the rotation frequency in batch mixer with overhead stirrer for epoxy/CB system was obtained. Chemical resistance tests of epoxy resin/carbon black composites were carried out by sample immersion in 30% H2SO4 and 95% H2SO4. The increase of apparent viscosity of epoxy/CB mixture was observed for relatively low temperatures (30–40 °C). Immersion of epoxy/CB composite in concentrated H2SO4 induced strong oxidation of sample and mass loss. Dilution of sulfuric acid led to the mass gain of the composite sample due to the increased uptake. The improvement of chemical resistance of epoxy/CB composites was observed in 95% H2SO4.
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