PHYSICO-CHEMICAL PERFORMANCE OF EPOXY RESIN/MODIFIED BENTONITE COMPOSITE
Keywords:Physico-chemical, Chemical resistance property, Water absorption property, and Flammability property.
Physico-chemical performance of the prepared composite were tested to investigate Chemical resistance property, Water absorption property, and Flammability property test of the modified bentonite composite, the result of the study revealed that, the composite were resistant to most of the chemicals tested, with exception of chloroform, water absorption test revealed that, the composite absorbed 2.8% of the distilled water in 7 days due to the composite material had an exfoliated structure in which the modified layers of bentonite clay were completely separated and highly dispersed into the polymer matrix, while Flammability test reveal that the composite fell into the classification defined by the UL 94 HB showing much lower burning rate than the neat epoxy. Hence, the time required for burning the sample is drastically increased by the incorporation of modified bentonite in the matrix may be due to an increased in the molecular interaction and compactness due to the organo-bentonite filled inside the matrix and higher rigidity there by making it harder and tougher to catch fire. Hence the composite were found to be good fire retardant.
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