Addition of organophilic layered silicates (montmorillonite) to the polymer matrix produces effective polymer nanocomposites by intercalation of macromolecules into the interlayer spaces. Rubber nanocomposites represent an untapped application that is still in an early stage of development. This research work focuses broadly on the property enhancement of rubber matrices through the incorporation of different types of layered silicates and a dispersion agent, Hexamethoxymethylmelamine (HMMM), to the composite formulation.
Styrene butadiene rubber (SBR) and acrylonitrile butadiene rubber (NBR) rubber nanocomposites were prepared using the commercially viable rubber compounding process and investigated through wide angle x-ray diffraction to determine the resulting clay morphology. The mechanical evaluation of the rubber nanocomposites was performed by tensile and tear testing. The effect of the dispersing agent was manifested in both the morphology and mechanical properties, which showed significant increase when added to the right combination of the modified organoclay and rubber type due to an increase d-spacing distance in the gallery height shown through WAXD. This work thus proves the positive benefit of such dispersion agents.
|School:||The University of Akron|
|School Location:||United States -- Ohio|
|Source:||MAI 57/05M(E), Masters Abstracts International|
|Subjects:||Organic chemistry, Polymer chemistry|
|Keywords:||Hexamethoxymethylmelamine, Layered silicates, Rubber nanocomposites, Styrene butadiene rubber, acrylonitrile butadiene rubber|
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