In order to improve the functionality and service life of the resin substrate, a variety of additives are needed, which play different roles such as flame retardancy, plasticization, stability, fillers, dyes, etc. Although the proportion of plastic additives in plastic formula is less than 8%, it plays an important role in improving the processing and application performance of products.
However, more and more plastic additives have been proved to have CMR (carcinogenic, mutagenic and reproductive toxic substances), PBT (persistent, bioaccumulative, toxic substances) / vbvt (highly persistent, highly bioaccumulative), endocrine interference characteristics. They are released to the environment in the life cycle of plastic products, and may lead to potential through uncontrolled physical recovery Hazardous substances are transferred to plastics for sensitive uses, such as children's toys and food contact materials.
Some experts said:
A kind of The abuse of toxic plastic additives limits the sustainable development of China's circular economy.
A kind of Many investigations show that plasticizers are out of standard in plastic products, which threatens people's health.
At present, there are more than 400 kinds of plastic additives recognized by the industry. Although harmful chemicals such as deca BDE are listed in Stockholm Convention and phthalates are listed in rohs2.0, most of the additives in use are still not regulated.
Therefore, the chemicals in plastics have become a new international chemical environmental problem. At present, there is a general lack of knowledge in this field in the world, and the data base in China is very weak, which affects the closed-loop of plastics industry and the health of people.
