Strengthen the anti-aging method of nylon

It has been found that the addition of antioxidants and blending modification can improve the heat aging resistance of PA materials and greatly extend the service life of the materials.Commonly used reinforced nylon has thermal oxygen stabilizers, including copper stabilizers, amine and hindered phenol antioxidants, and hydroperoxide decomposers.According to some data introduction and a large number of experiments, the anti-aging effects of different antioxidant systems are as follows: copper salt antioxidant>1098+626 antioxidant system>1098 antioxidant system>1010+626 antioxidant system Carbon black has good ultraviolet absorbers, so black enhances nylon The material is more resistant to aging than other colored reinforced nylon.It has been found that the POE-g-MAH elastomer can resist thermal aging to a certain extent in the toughened PA6 system. The combination of antioxidant 1098 and phosphite antioxidant 626 has a synergistic effect in the PA6 system.Copper salt antioxidant and antioxidant 1098 and its composite antioxidant are all high-efficiency antioxidants of PA6 resin system. Copper salt antioxidant has a more obvious anti-heat aging effect on toughening PA6 system. The antioxidant 1010 compounding system has limited thermal aging resistance to PA6 resin. Reinforced nylon and copper salt antioxidants and 1098 composite anti-oxidation toughened PA6 materials can meet the thermal oxidative aging requirements of the materials.