Thiazole accelerators are currently important general accelerators, and are the earlier varieties of organic accelerators, and their representative product MBT (M) is the most widely used accelerator product. We can understand the importance and wide application of the rubber accelerator MBT through a set of data. The output of accelerator M and its derivatives (DM, MZ, CZ, NS, DZ, etc.) accounts for 20% of the total output of rubber additives. % or more, accounting for more than 70% of the output of accelerator products, now let's learn about thiazole accelerators.

Development of Rubber Accelerator MBT Products

In the 1920s, mercaptobenzothiazole was applied as an accelerator in Italy and the United States, respectively, and thiazole accelerators have been developed since then. Accelerator M belongs to the thiazole type accelerator product that was discovered earlier, and it is still in use and has a wide range of applications. So far, thiazole accelerators are still important general accelerators. They are used in a large amount in organic accelerators. Thiazole accelerators are still used in the formulation of many rubber products.

Product Features

1. Thiazole accelerators are acidic, quasi-speed (semi-overspeed) accelerators. The activity is higher than that of sulfenamides, but not as good as thiurams and dithiocarbamates.

2. Good vulcanization characteristics, medium and short scorch time, fast vulcanization rate, good vulcanization flatness, good operability, vulcanizate has good comprehensive physical and mechanical properties, and has high tensile strength and elongation at break Elongation, moderate tensile stress and hardness, good wear resistance and aging resistance, small compression will deform, etc.

3. Thiazole accelerators are suitable for the manufacture of white, light-colored and transparent rubber products, with a bitter taste, and are not suitable for food rubber products. Among them, the accelerator MBT(M) is not only used as accelerator, but also the parent of sulfenamide general accelerator.

4. Critical temperature of vulcanization: M 125 ℃, DM 130 ℃, MZ 138 ℃.