my country’s accelerator MBTS production accounts for a large proportion and the production technology is constantly improving.

Accelerator MBTS, also known as accelerator DM, has a chemical name of dibenzothiazole disulfide and a chemical formula of C14H8N2S4. Its appearance is light yellow powder, odorless, slightly bitter, toxic, and irritating. The accelerator MBTS has stable storage properties under normal temperature and pressure. It is insoluble in water, insoluble in ethyl acetate, alkali, and gasoline, slightly soluble in ethanol, ether, benzene, acetone, and carbon tetrachloride, and soluble in chloroform. Accelerator MBTS is a commonly used rubber vulcanization accelerator.

Accelerator MBTS has a medium vulcanization speed and stable vulcanization characteristics. Its properties and uses are similar to accelerator M, but it has a higher critical vulcanization temperature, greater activity, better aftereffects, and higher scorch safety. The accelerator MBTS can be widely used in the production of natural rubber and various synthetic rubbers to manufacture tires, hoses, tapes, wires and cables, rubber shoes and other products. It can also be used as a plasticizer and retardant. High-purity MBTS can also be used In the pharmaceutical field, it is used as an intermediate to manufacture cephalosporin anti-inflammatory drugs. When used as a rubber vulcanization accelerator, the accelerator MBTS is usually used in conjunction with other accelerators to increase activity.

According to the “2022-2026 Promoter MBTS (DM) Industry In-depth Market Research and Investment Strategy Suggestion Report” released by the Industrial Research Center It shows that in the past three years, the annual output of rubber additives in my country has been between 1.2 and 1.3 million tons. Rubber accelerator is one of the main products, accounting for about 27% of the annual output. The accelerator MBTS is the main rubber accelerator in my country. One of the product types, its annual output accounts for about 14%, second only to accelerator NS (TBBS) and accelerator CBS (CZ). The accelerator MBTS is a common rubber vulcanization accelerator in my country.

The preparation method of accelerator MBTS is mainly to use accelerator M as raw material, or use aniline, carbon disulfide, and sulfur as raw materials to react under certain temperature and pressure conditions to prepare accelerator M, and then add oxidant and introduce air under acidic conditions for oxidation. The product is produced by the reaction. Divided according to different oxidants, the accelerator MBTS preparation process mainly includes sodium nitrite method, hydrogen peroxide method, oxygen oxidation method, etc. Among them, the sodium nitrite method will produce a large amount of waste water and waste gas, and the hydrogen peroxide method will produce a large amount of waste water. It will cause harm to the environment. The oxygen oxidation method is environmentally friendly, but has high requirements for production equipment.

Industry analysts said that in the early days, the production of accelerator MBTS in my country was mainly based on the sodium nitrite method, which has a simple preparation process and low cost. , but as my country’s environmental protection policies become increasingly stringent, the traditional accelerator MBTS production method can no longer meet environmental protection requirements. The application proportion of the oxygen oxidation accelerator MBTS preparation process is continuing to increase, and it will have more development potential in the future. In my country, there are a large number of accelerator MBTS manufacturers, including China Shangshun Chemical, Lianyungang Sennics Chemical, Weilin New Materials, Kemai Chemical, Zhengzhou Shuangli Chemical, Henan Kailun Chemical, Shandong Derrick New Materials, Shandong Still Chemical, etc.