采用一步法合成出了3-甲基-2-噻唑硫酮(MTT), 通过FTIR, XRD, TG-DSC对其进行检测和表征, 揭示了MTT的微观结构和内在规律性。 FTIR揭示了MTT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, 变换出MTT晶体微观结构, 完成了MTT物相组成和结构的定性鉴定。 TG-DSC检测出了MTT的质量变化与热效应两种信息, MTT的相变和分解温度分别为76.3和306.9 ℃, MTT的分解温度偏高, 为采用硫化仪研究MTT的橡胶硫化性能提供参考。 本研究为企业选定工作标准品, 对MTT工业化生产进行跟踪检测, 评判MTT的产品性能指标, 提供基础实验数据。

In the study, rubber accelerator 3-methylthiazolidine-2-thione (MTT) was synthesized by one-step method firstly. MTT was detected and characterized by XRD, FTIR, TG-DSC. The micro-structure and intrinsic regularity were revealed. Chemical bond types into MTT molecule were revealed by FTIR. MTT 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 MTT structure were completed. Two kinds of information were detected by TG-DSC as quality change and thermal effect. MTT phase transition and decomposition temperature were 76.3 and 306.9 ℃ respectively. The decomposition temperature of MTT was very high. It could provided reference with research on rubber vulcanizing properties by MTT on rubber vulcanizing machine. This study can provide the basis experimental data on the enterprises to designate the working standard tracing detection of MTT industrialized production. Performance index of MTT was judged.