A phenol-free environmentally friendly phosphite antioxidant with low volatility and good hydrolysis resistance. It can be widely used in PVC, rubber, plastic, oil, and other polymers. This product contains active hydroxyl groups, which can be used for foaming polyurethane sponges, improving the degree of maturation of the sponges, and enhancing the bonding force of the flame compounding of the sponges.
Suggested addition amount: 0.1-2.0%.