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首页> 外文期刊>Journal of Applied Polymer Science >THE EFFECT OF CARBON BLACK ON TETRAMETHYLTHIURAM DISULFIDE ACCELERATOR SULFUR VULCANIZATION OF POLYISOPRENE
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THE EFFECT OF CARBON BLACK ON TETRAMETHYLTHIURAM DISULFIDE ACCELERATOR SULFUR VULCANIZATION OF POLYISOPRENE

机译：碳黑对聚异戊二烯对叔丁基硫代二硫化硫促进剂硫磺硫化的影响

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Polyisoprene was vulcanized with the tetramethylthiuram disulfide/sulfur/ZnO system in the presence and absence of N330 carbon black. Crosslinking was carried out in a DSC at a programmed heating rate, the reaction stopped at points along the thermal curve, and the system analyzed. Residual curatives and reaction intermediates were determined by HPLC and crosslink densities by swelling in benzene. Combinations of the powdered curatives were also heated with and without carbon black and analyzed. It is shown that the step in the vulcanization sequence, influenced by carbon black, is the formation of tetramethylthiuram polysulfides that act as the active sulfurating agent in vulcanization. Carbon black catalyzes their formation, and to a lesser extent, the formation of accelerator terminated polysulfidic pendent groups on the chain. (C) 1995 John Wiley & Sons, Inc. [References: 19]
机译：在存在和不存在N330炭黑的情况下，用四甲基秋兰姆二硫化物/硫/ ZnO体系硫化聚异戊二烯。在DSC中以编程的加热速率进行交联，反应在沿热曲线的点处停止，并对系统进行分析。通过HPLC测定残留的固化剂和反应中间体，并通过在苯中溶胀测定交联密度。在有或没有炭黑的情况下，也要加热粉末状固化剂的组合并进行分析。结果表明，硫化顺序中受炭黑影响的步骤是形成四甲基秋兰姆多硫化物，该硫化物在硫化过程中起活性硫化剂的作用。炭黑催化了它们的形成，并在较小程度上催化了链上促进剂封端的多硫侧基的形成。 （C）1995 John Wiley＆Sons，Inc. [参考：19]

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