For manufacturers working with polypropylene (PP), understanding the critical role of antioxidants is paramount to ensuring product quality and longevity. Polypropylene, while versatile, is susceptible to degradation caused by heat, oxygen, and mechanical stress during processing. This degradation can lead to yellowing, loss of mechanical properties, and ultimately, product failure. This guide aims to help procurement managers and R&D scientists navigate the selection process, with a focus on high-performance solutions like Antioxidant 136.

Understanding Polymer Degradation in Polypropylene

During processing, such as extrusion and injection molding, polypropylene is exposed to high temperatures and shear forces. These conditions generate free radicals, particularly carbon-centered and alkyl radicals. In the presence of oxygen, these radicals initiate a chain reaction of oxidative degradation. This process can manifest as:

  • Yellowing: A common visual indicator of thermal degradation.
  • Brittleness: Loss of flexibility and impact strength.
  • Reduced Melt Flow Index (MFI): Affecting processability and product consistency.

Effective stabilization is crucial to counteract these effects and maintain the desired properties of the final product. As a leading supplier of Antioxidant 136, we emphasize its unique capabilities in this regard.

Types of Antioxidants and Their Functions

Antioxidants are broadly classified into primary and secondary types:

  • Primary Antioxidants (Radical Scavengers): These compounds, like hindered phenols and certain specialized molecules, directly trap and neutralize free radicals, thereby interrupting the degradation chain. Antioxidant 136 falls into this critical category, acting as a potent carbon free radical scavenger.
  • Secondary Antioxidants (Peroxide Decomposers): These additives, often phosphites or thioesters, decompose hydroperoxides, which are intermediate products of oxidation, into stable, non-reactive substances. They work synergistically with primary antioxidants.

When you buy Antioxidant 136, you are investing in a high-efficiency primary antioxidant that offers distinct advantages.

The Superiority of Antioxidant 136 for Polypropylene

Antioxidant 136 stands out due to its:

  • Exceptional Carbon Free Radical Scavenging: It efficiently traps radicals, providing crucial protection during the initial stages of oxidation, especially in oxygen-deficient environments common during high-temperature extrusion.
  • High Performance at Lower Dosages: Compared to traditional antioxidants, Antioxidant 136 provides superior protection with significantly reduced usage levels. This translates directly to cost savings and improved compatibility in your formulations. As a competitive manufacturer in China, we ensure this efficiency in every batch.
  • Synergistic Effects: It acts as an excellent synergist with phenolic antioxidants (like AO 1010) and phosphite ester antioxidants (like AO 168). This combination creates a robust stabilization system that enhances both processing stability and long-term thermal stability.
  • Anti-Yellowing Properties: It is particularly effective in preventing yellowing during high-temperature extrusion processing of polypropylene, maintaining the aesthetic appeal and integrity of the material.

Why Choose Us as Your Antioxidant 136 Manufacturer?

At NINGBO INNO PHARMCHEM CO.,LTD., we are committed to delivering high-quality functional material additives. Our expertise in chemical synthesis and production ensures that you receive a product of exceptional purity and consistent performance. When you purchase Antioxidant 136 from us, you benefit from:

  • Reliable Supply Chain: As a leading supplier, we guarantee consistent availability and timely delivery.
  • Technical Support: Our team can assist with product selection and application advice.
  • Competitive Pricing: We offer attractive prices for high-performance solutions.

For procurement managers seeking to optimize their polypropylene formulations and ensure superior product quality, investing in Antioxidant 136 is a strategic decision. Contact us today to discuss your specific needs and how our advanced solutions can benefit your manufacturing process.