Antioxidant 1010 is more suitable for polypropylene, as it demonstrates superior performance in terms of antioxidant efficiency and long-term stability. It is particularly well-suited to the high-temperature processing characteristics of polypropylene.

Applicability Analysis for Polypropylene 

Antioxidant 1010

● Advantages: Exhibits excellent antioxidant properties for polypropylene, with low volatility, good extraction resistance, and high thermal stability. It can effectively prevent thermo-oxidative degradation during long-term aging.

● Processing Advantages: Although it has a relatively high melting point, the typical processing temperature of polypropylene ranges from 180°C to 220°C. The thermal stability of Antioxidant 1010 enables it to perform exceptionally well in high-temperature processing. 

● Durability: Its tetraphenolic structure provides longer-lasting antioxidant protection. 

Antioxidant 1076: 

● Advantages: Features a low melting point for easy processing, good compatibility with polypropylene, relatively low cost, and a certain degree of light stability. 

● Limitations: Has relatively weak antioxidant efficiency, as only one phenolic bond contributes to its antioxidant function. 

Practical Application Recommendations 

● High-performance Requirements: Choose Antioxidant 1010 for long-term service polypropylene products such as automotive parts and household appliance housings. 

● Processing Convenience Priority: Choose Antioxidant 1076 for products sensitive to processing temperatures, such as films and pipes. 

● Compound Application: Both antioxidants can be compounded with auxiliary antioxidants (e.g., Antioxidant 168) to achieve a synergistic effect. 

● Recommended Addition Level: Generally 0.1% - 0.5%, depending on the specific processing temperature and service environment.