Antioxidant 136

Product Overview

Antioxidant 136 is a specialized hindered benzofuranone-based antioxidant engineered for advanced stabilization in polyolefin systems, particularly polypropylene (PP). As a highly efficient carbon-centered radical scavenger, it excels under oxygen-limited, high-shear processing conditions where conventional phenolic or phosphite antioxidants may underperform. Its unique molecular architecture enables exceptional resistance to thermal degradation and discoloration, making it ideal for applications demanding long-term color stability and mechanical integrity.

Specifications and Physical Characteristics

Industrial Applications

Antioxidant 136 is primarily deployed in the stabilization of polypropylene during demanding melt-processing operations such as extrusion and injection molding. Its key advantages include:

• Superior anti-yellowing performance in high-temperature extrusion environments
• Effective trapping of alkyl and carbon-centered radicals formed under hypoxic conditions
• Enhanced synergistic effects when combined with primary phenolic antioxidants (e.g., Irganox 1010) and secondary phosphite stabilizers (e.g., Irgafos 168)
• Lower required dosage compared to traditional antioxidant systems, improving cost-efficiency without compromising performance

This product is especially valuable in the production of fibers, films, and engineering-grade PP components where color fidelity and oxidative stability are critical quality parameters.