ACCELERATOR TBSI

Chemical Name:    N-tert-butyl-di(2-benzothiazole sulfen)amide

CAS No.:  3741-80-8

Molecular Formula: C₁₈H₁₇N₃S₄

Specification: 

Uses:  TBSI is used as a delaying-effect accelerator in NR, synthetic rubbers and reclaimed rubber. The rubber added with TBSI can obtain good soorch safety and lower vulcanization rate, and show good curing reversion resistance, high modulus and lower heat generation. TBSI is a primary amine based accelerator which does not generates the nitrosamines and it can replace NOBS which is carcinogenic. The rubber added with TBSI can obtain good soorch safety and lower vulcanization rate, and show good curing reversion resistance, high modulus and lower heat generation,which optimizes adhesion between rubber and brass coated steel cord. Its physical properties and dynamio properties of cured rubber are similar with NOBS and DCBS cured rubber. It can also replace the blend of primary amine accelerator TBBS or CBS and scorching retarder CTP and be used alone,which makes it ideal for thick articles requiring a balanced cure and provides improved reversion resistance both during extended cure times at elevated temperatures and during product service life. TBSI exhibits outstanding storage stability under hot and humid storage conditions. 

Packing:  in 20 or 25kgnet poly-ply paper bags.