Studies on the reaction of bis(diisopropyl) thiophosphoryl disulfide with silica in the vulcanization of NR
Studies on the reaction of bis(diisopropyl) thiophosphoryl disulfide with silica in the vulcanization of NR
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双(二异丙基)硫代磷酰二硫化物与白炭黑在天然橡胶硫化中的反应研究
DOI：
10.1002/app.1988.070350413
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
D. Basu
中科院分区：
文献类型：
--
作者：
S. Mandal;R. Datta;P. Das;D. Basu
研究了二（二异丙基）硫代磷酰二硫化物（DIPDIS）与二氧化硅的反应。研究表明，DIPDIS可作为白炭黑的偶联剂。二氧化硅和DIPDIS的硅烷醇基团之间的化学键已经通过从反应中消除的异丙醇的分离和表征建立。该键的化学性质也得到了在存在和不存在橡胶的情况下获得的二氧化硅和DIPDIS的反应产物的IR分析的支持。探索性研究表明，DIPDIS也可以与NR反应，即使在混合成分的过程中。当与2-巯基苯并噻唑（MBT）或N-氧代二乙烯-2-苯并噻唑次磺酰胺（OBTS）在二氧化硅存在下共同使用时，DIPDIS表现出显著的固化活化作用，提高了扭矩、模量、拉伸强度和焦烧安全性。
The reaction between bis(diisopropyl) thiophosphoryl disulfide (DIPDIS) and silica has been investigated. The study reveals that DIPDIS can be used as a coupling agent for silica. The chemical bond between the silanol groups of silica and DIPDIS has been established through the isolation and characterization of isopropyl alcohol that is eliminated from the reaction. The chemical nature of the bond is also supported by the IR analysis of the reaction products of silica and DIPDIS obtained both in the presence and absence of rubber. From the exploratory studies it is indicated that DIPDIS can also react with NR even during mixing of ingredients. When used with 2-mercaptobenzothiazole (MBT) or N-oxydiethylene-2-benzothiazole sulfenamide (OBTS) in the presence of silica, DIPDIS exhibits notable activation of cure and enhances the torque, modulus, tensile strength, and the scorch safety.