橡胶硫化促进剂一硫化四异丁基秋兰姆制备及光谱分析

Preparation of Rubber Accelerator Tetraisobutylthiuram Monosulfide and Its Spectral Analysis

以双氧水为氧化剂,采用二步法合成出了一硫化四异丁基秋兰姆(TiBTM),通过FTIR,XRD,TG-DSC对其进行检测和表征,FTIR揭示了TiBTM分子内部的各元素之间的化学键键型,XRD从晶胞参数、晶面指数等晶体学数据,反映了TiBTM晶体微观结构,TG-DSC检测出了TiBTM的质量变化与热效应两种信息,TiBTM的相变和分解温度分别为75.1和287.0℃,样品纯度很高,没有发现其他杂质,TiBTM的分解温度偏高,为采用硫化仪研究TiBTM的橡胶硫化性能,揭示TiBTM多种功能性提供依据。本研究为企业采取清洁生产工艺制备TiBTM,提供了最佳工艺条件和参数,选定工作标准品,对TiBTM工业化生产进行跟踪检测,评判TiBTM的产品性能指标,提供基础实验数据。

In the study, rubber accelerator tetraisobutylthiuram monosulfide （TiBTM） was synthesized by two-step method with hydrogen peroxide as oxidant firstly. TiBTM was detected and characterized by FTIR, XRD, TG-DSC. Its micro-structure and intrinsic regularity were revealed. Chemical bond types into TiBTM molecule were revealed by FTIR. TiBTM phase composition and structure were given by crystallographic data from XRD detecting such as cell parameters, crystal face index. The phase composition and qualitative identification of TiBTM structure were completed. Two kinds of information were detected by TCr DSC as quality change and thermal effect. TiBTM phase transition and decomposition temperature were 75.1 and 287.0 ℃ respectively. Uhe decomposition temperature of TiBTM was very high, samples possessing with high purity, without other impurities. It could provided reference with research on rubber vulcanizing and multiple functional properties by TiBTM on rubber vulcanizing machine. This study can provide the basis experimental data on the enterprises to designate the working standard tracing detection of TiBTM industrialized production. The best technological conditions and parameters could be provided for the enterprises to adopt cleaner production process of TiBTM. Performance index of TiBTM was judged. The project of TiBTM industry standard can be declared by the enterprises, written a draft standard.