Effect of Carboxylic Acids on 2-Bisbenzothiazole-2,2'-Disulfide- and Tetramethylthiuram Disulfide-Accelerated Sulfur Vulcanization. lll. Reaction Between Accelerators and Zinc Salts of the Acids

MCGILL W.J.

首页> 外文期刊>Journal of Applied Polymer Science >Effect of Carboxylic Acids on 2-Bisbenzothiazole-2,2'-Disulfide- and Tetramethylthiuram Disulfide-Accelerated Sulfur Vulcanization. lll. Reaction Between Accelerators and Zinc Salts of the Acids

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Effect of Carboxylic Acids on 2-Bisbenzothiazole-2,2'-Disulfide- and Tetramethylthiuram Disulfide-Accelerated Sulfur Vulcanization. lll. Reaction Between Accelerators and Zinc Salts of the Acids

机译：羧酸对2-二苯并噻唑-2,2'-二硫化物和四甲基秋兰姆二硫化物促进的硫磺硫化的影响。 ll。促进剂与酸锌盐之间的反应

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Stearic and benzoic acids were heated with 2-bisbenzothiazole-2,2'-disulfide (MBTS)/sulfur/ZnO and tetramethylthiuram disulfide (TMTD)/sulfur/ZnO isothermally at 150deg C and in a DSC at 2.5deg C/min, in the absence of rubber. The acids readily reacted with ZnO, and at vulcanization temperatures, little or no free acid remains. The zzinc salts are less reactive toward the accelerators and accelerator polysulfides than are the acids, although with benzoica acid/ZnO, MBTS formulations produced small amounts of the accelerator-acid complex 2-benzoylthiobenzothiazole and 2-mercaptobenzothiazole, while with TMTD formulations, limited 2-benzoyldimethyldithiocarbamate formation was detected. These small amounts of the reaction can be attributed to the incomplete consumption of benzoic acid, zinc benzoate restricting the access of benzoic acid to ZnO particles. Although conversion of MBTS and TMTD to accelerator acid complexes is limited, the zinc salts do promote the slow decomposition of MBTS and TMTD above 150deg C. It can be concluded that in the presence of ZnO carboxylic acids should not detrimentally effect the vulcanization reaction.

机译：硬脂酸和苯甲酸与2-双苯并噻唑-2,2'-二硫化物（MBTS）/硫/ ZnO和四甲基秋兰姆二硫化物（TMTD）/硫/ ZnO在150°C和DSC中以2.5°C / min等温加热。没有橡胶。酸容易与ZnO反应，在硫化温度下，几乎没有或几乎没有剩余游离酸。 zzinc盐对促进剂和促进剂多硫化物的反应性比酸低，尽管使用苯甲酸/ ZnO，MBTS配方可产生少量的促进剂-酸复合物2-苯甲酰基硫代苯并噻唑和2-巯基苯并噻唑，而使用TMTD配方时，限量2检测到-苯甲酰基二甲基二硫代氨基甲酸酯的形成。这些少量的反应可归因于苯甲酸的不完全消耗，苯甲酸锌限制了苯甲酸进入ZnO颗粒。尽管MBTS和TMTD向促进剂酸络合物的转化受到限制，但是锌盐确实促进了MBTS和TMTD在150℃以上的缓慢分解。可以得出结论，在ZnO羧酸的存在下，不应不利地影响硫化反应。

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《Journal of Applied Polymer Science》 |1999年第8期|共8页
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MCGILL W.J.;
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vulcanization; stearic acid; benzoic acid; 2-bisbenzothiazole-2; 2'-disulfide; tetramethylthiuram disulfide; ZnO;

机译：硫化;硬脂酸;苯甲酸;2-双苯并噻唑-2;2'-二硫化物;四甲基秋兰姆二硫化物;ZnO;

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1. Effect of Carboxylic Acids on 2-Bisbenzothiazole-2,2'-Disulfide- and Tetramethylthiuram Disulfide-Accelerated Sulfur Vulcanization. lll. Reaction Between Accelerators and Zinc Salts of the Acids [J] . MCGILL W.J. Journal of Applied Polymer Science . 1999,第8期

机译：羧酸对2-二苯并噻唑-2,2'-二硫化物和四甲基秋兰姆二硫化物促进的硫磺硫化的影响。 ll。促进剂与酸锌盐之间的反应
2. Effect of Carboxylic Acids on 2-Bisbenzothiazole-2,2'-Disulfide- and Tetramethylthiuram Disulfide-Accelerated Sulfur Vulcanization. lll. Reaction Between Accelerators and Zinc Salts of the Acids [J] . MCGILL W.J. Journal of Applied Polymer Science . 1999,第8期

机译：羧酸对2-二苯并噻唑-2,2'-二硫化物和四甲基秋兰姆二硫化物促进的硫磺硫化的影响。 ll。促进剂与酸锌盐之间的反应
3. Effect of Carboxylic Acids on 2-Bisbenzothiazole-2,2'-Disulfide- and Tetramethylthiuram Disulfide-Accelerated Sulfur Vulcanization. l. Reaction Between the Acids and Accelerators [J] . MCGILL W.J. Journal of Applied Polymer Science . 1999,第8期

机译：羧酸对2-二苯并噻唑-2,2'-二硫化物和四甲基秋兰姆二硫化物促进的硫磺硫化的影响。 l。酸与促进剂之间的反应
4. Pyrolysis of Coal Model Compounds Containing Aromatic Carboxylic Acids: The Role of Carboxylic Acids in Cross-Linking Reactions in Low-Rank Coal [C] . Thomas P. Eskay, Phillip F. Britt, A. C. Buchanan International conference on coal science;ICCS '97 . 1997

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5. Development of Novel Methods for the Synthesis of Sulfur Compounds by Transformations of Non-activated Carboxylic Acids and Aromatic Carbon-Hydrogen Bonds into Carbon-Sulfur Bonds as a Key Process [D] . 西野　晃太 2019

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7. Thermal Transformation of Alkali Salts of Aromatic Carboxylic Acids. V. Reaction of Potassium and Sodium Salts of Naphthoic Acids [O] . Yasuhiko Dozen 1968

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8. Pyrolysis of coal model compounds containing aromatic carboxylic acids: The role of carboxylic acids in cross-linking reactions in low-rank coal [R] . Eskay, T. P. , Britt, P. F. , Buchanan, A. C. 1997

机译：含有芳香羧酸的煤模型化合物的热解：羧酸在低级煤中的交联反应中的作用

Effect of Carboxylic Acids on 2-Bisbenzothiazole-2,2'-Disulfide- and Tetramethylthiuram Disulfide-Accelerated Sulfur Vulcanization. lll. Reaction Between Accelerators and Zinc Salts of the Acids

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