2-Mercaptobenzothiazole CAS 149-30-4

Accelerator m is a general-purpose rubber vulcanization accelerator, a semi-super accelerator, which can be used alone or mixed with other accelerators. It has a rapid acceleration effect on natural rubber and general sulfur vulcanized synthetic rubber.

Accelerator m is the parent material of most sulfenamide accelerators, and is a widely used organic intermediate synthetic accelerator NOBS, Ds, Ns, cz, D1Bs, Dz, Mz (2-mercaptobenzothiazole zinc salt ), DM, TBsliⅣ-tert-butyl-bis(2-benzothiazole)sulfenimide], cBBs[Ⅳcyclohexyl-bis(2-benzothiazole)sulfenamide], etc. The development of agent m. The quality and output of accelerator m are directly related to the development of rubber.

In the process of rubber mastication, adding a small amount of accelerator m can form a loose complex structure with sulfur, which can improve the plasticity of rubber, quickly reduce the Mooney viscosity of rubber, and can accelerate the mastication rate of raw rubber, reducing the The energy consumption of mastication shortens the time of mastication and greatly improves the efficiency of mastication.

Accelerator m can also effectively prevent corrosion of metals, etc.””. In various media, especially water, metal anticorrosion is often prevented by adding corrosion inhibitors, which is of great significance to the protection of cultural relics. It has been confirmed that benzoazole and some mercapto-substituted heterocyclic compounds, such as accelerator m, 2-mercaptobenzimidazole and 2-mercaptobenzoxazole, are effective corrosion inhibitors for metallic copper.

Another use of accelerator m is as a mineral flotation agent, mainly used as a collector for sulfide ore flotation such as silver, chalcopyrite, galena, pyrite and activated sphalerite, sometimes with dithioamino acid salts Mixed use can further improve the yield and grade of flotation products.

Accelerator m can also be used for epoxy resin modification. Adding a small amount of accelerator m to epoxy resin can significantly increase the adhesive strength and curing rate of epoxy resin, and has the effect of significantly reducing the reaction temperature and shortening the curing reaction time, and the larger the accelerator m, the faster the curing rate. This function has important guiding significance for fast industrial restoration, especially online industrial restoration.

Accelerator m can act as an initiator, increase the degree of polymerization of styrene, narrow the relative molecular mass distribution of the polymer, and the relative molecular mass of the polymer increases linearly with the increase of the conversion rate, showing that styrene is promoting In the presence of agent m, it has “active” and controllable polymerization characteristics” 2’4…. This has certain guiding significance for the preparation of special materials in the FRP industry, especially in the aerospace industry.

Accelerator m is used as an extraction agent and is currently mainly used for the separation of precious metal rhodium and iridium. The lone electrons attached to the sulfur and nitrogen molecules in the hydrogen accelerator can easily form coordination with precious metals, which solves the problem that the two precious metals, rhodium and iridium, are difficult to separate.

Accelerator m can be used as a lubricant as well as an adsorbent. It also has its special application in electrochemistry. For example, adding a small amount of accelerator m to the electrode material can change the performance of the electrode, which is of great significance to the development of electrochemistry.