Abstract One relatively new additive for rubber compound named oleamide was made from urea and oleic acid of palm oil. The applied in compounding technology; by adding it to styrene butadiene (SBR)/silica compound. silica added at 30 parts per hundred SBR, whilst the loaded silica-filled SBR with varying amounts i.e., 2 8 phr and, those SBR/silica/oleamide compounds were vulcanized 150 °C apply...

Natural rubber is produced by a rubber transferase (a cis-prenyltransferase). Rubber transferase uses allylic pyrophosphate to initiate the rubber molecule and isopentenyl pyrophosphate (IPP) to form the polymer. Rubber biosynthesis also requires a divalent metal cation. Understanding how molecular weight is regulated is important because high molecular weight is required for high quality rubbe...

Title of Document: EFFECT OF ENCAPSULATION ON ELECTROLYTE LEAKAGE IN ALUMINUM ELECTROLYTIC CAPCITORS UNDER CONSTANT THERMAL AND ELECTRICAL LOADING Ehsan Parsa, Master of Science, 2014 Directed By: Professor Abhijit Dasgupta Co-Advisor Dr. Michael Azarian Department of Mechanical Engineering This study focuses on the influence of encapsulation (with silicone elastomer potting compound) on electr...

Rubber biosynthesis takes place on the surface of rubber particles. These particles are surrounded by a monolayer membrane in which the rubber transferase is anchored. In order to gain better insight into whether rubber particles from different plant species share common structural characteristics, the micromorphology of rubber particles from Ficus carica, Ficus benghalensis, and Hevea brasilie...

The DNA-damaging activities of organic rubber additives such as rubber vulcanizing agents, vulcanization accelerators and rubber anti-oxidants were investigated by the rec-assay using spores of Bacillus subtilis strains H 17 and M 45. For metabolic activation, 9,000 X g supernatant solutions of the liver homogenate of Sprague-Dawley male rats previously treated with aroclor 1,254 were used. Spo...