What are the effects of antioxidants?

For the processing of engineering plastics, thermal oxidative degradation during the processing of certain polymers (such as ABS, etc.) can be avoided, so that the molding process can proceed smoothly. The amount of addition-generally only 0.1-0.5 parts. Antioxidants should have the following conditions: ①Should have high antioxidant capacity: ②Good compatibility with resin, no precipitation; ③Good processing function. Does not evaporate or differentiate at the processing temperature of the polymer; ④Good resistance to extraction, insoluble in water and oil; ⑤ The color of itself is best colorless or light. So as not to pollute the product; ⑥Non-toxic or low-toxic; ⑦Low price.