Chemorheological Study on Natural Rubber Vulcanizates.

摘要: Chemical stress relaxation studies were carried out in air and vacuo (0.001 mmHg) on two natural rubber vulcanizates: one cured by dicumyl peroxide the other tetramethylthiuram disulfide. These are believed to produce carbon–carbon cross-links carbon–sulfur–carbon respectively.Chemical showed that oxidative scissions along main chains major causes of decay for each vulcanizate. The curves both vulcanizates nearly same air.Chemical samples was slower than air. network with more rapid cross-links. Analysis effect cross-link density indicates cleavage at junctures closs-links.