Environment-friendly agent to promote the development of

In recent years, some of the international promotion of rubber processing agents in the course of harmful nitrosamines easy problems have become an increasing importance, the formation of nitroso compounds, such as the impact of research in the world rubber accelerator in the field of hot topics.
Research shows that, N-nitrosamines by the secondary amine with the reaction of nitrogen oxides produced. In the rubber vulcanization process, to secondary amine (such as morpholine, Diisopropylamine, etc.) based on the promotion of curing agent after the break with the secondary amine in the air or agent with the nitrogen oxides to form N-nitrosamines, Nitrosamine formation of the DNA alkylation, finally induced cancer. The primary and tertiary amines and nitrogen oxides, it will be difficult to generate stable nitrosamines. Many foreign countries have the main types of TBSI that if Mr Sulfonyl Amine, thiuram category, dithiocarbamate sulfur salts to give body and the type of material as possible subjects of nitrosamines, analysis They produce nitrosamines and the alternative mechanism of the problem.
In view of this, many of the world's restrictive laws and regulations were introduced. Germany as early as 1982 on the promulgation of regulations to control content of nitrosamine, the United States, Japan, France and Britain also have not developed a new type of nitrosamines TBSI, one after another and will have to stop using the N-nitrosamines TBSI. 1997 Beijing Rubber Research and Design Institute analysis determined that the tires in Europe and the United States has captured less than Morpholine residue traces, which will have to confirm some of the promoters of the nitrosamines in Europe and the United States is no longer used.
The 21st century is the era of green chemical engineering, environmental protection in chemical production in the future is particularly critical, the rubber chemicals industry of China's "Tenth Five-Year" Development Plan clearly, the future focus is to adjust product mix, increase drug-free environment for the development of rubber chemicals And use.