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Materials Science and Engineering
Epoxide natural rubber In situ epoxidation Sulfur vulcanization systems Tetrabenzylthiuram disulphide
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Full-Text Articles in Engineering
Effects Of Sulfur Vulcanization System On Cure Characteristics, Physical Properties And Thermal Aging Of Epoxidized Natural Rubber, A Larpkasemsek, L Raksaksri, S Chuayjuljit, P Chaiwutthinan, A Boonmahitthisud
Effects Of Sulfur Vulcanization System On Cure Characteristics, Physical Properties And Thermal Aging Of Epoxidized Natural Rubber, A Larpkasemsek, L Raksaksri, S Chuayjuljit, P Chaiwutthinan, A Boonmahitthisud
Journal of Metals, Materials and Minerals
The epoxidized natural rubber (ENR) with 40 mol% epoxidation (ENR-40) was initially prepared via 'in situ' epoxidation of concentrated natural rubber latex with formic acid (1M to isoprene unit) and hydrogen peroxide (0.75 M to isoprene unit) at 50ºC for 8 h. The as-prepared ENR-40 was then cured with three different sulfur vulcanization/curing systems, including conventional (CV), semi-efficiency (semi-EV) and efficiency (EV) systems using tetrabenzylthiuram disulphide (TBzTD) as a non-carcinogenic accelerator on a compression molding machine. The effects of sulfur to accelerator ratio on the cure characteristics, tensile properties (tensile strength, modulus at 300% strain (M300) and elongation at break), …