The major chemical changes during the processing of rubber occur with the breakdown in mastication and during vulcanization of the molded tire. There is little chemical change during the compounding, calendering, extrusion, and molding steps. Reclaiming is the process of converting scrap rubber into an unsaturated, processible product that can be vulcanized with sulfur. Pyrolysis of scrap rubbe...

In the article, it was determined that furan oligomer added to composition causes additional structuring in process of vulcanization, and as a result, density hardness vulcanization network composite increases, value relative length decreases. It shown optimal amount oligomers rubber compounds is equal 10 weight units per 100 rubber. With inclusion secondary product acetylene production elastom...

The synthesis of lead sulfide nanocrystals within a solution processable sulfur 'inverse vulcanization' polymer thin film matrix was achieved from the in situ thermal decomposition of lead(II) n-octylxanthate, [Pb(S2COOct)2]. The growth of nanocrystals within polymer thin films from single-source precursors offers a faster route to networks of nanocrystals within polymers when compared with ex ...

J Jo ou ur rn na al l o of f E En nv vi ir ro on nm me en nt ta al l a an nd d O Oc cc cu up pa at ti io on na al l S Sc ci ie en nc ce e available at www.scopemed.org Abstract Systemic sclerosis is an important autoimmune disease. Sclerodermatous skin changes and systemic sclerosis have been reported to occur as a result of occupational exposure with several different organic solvents. We desc...