In the complex world of polymer manufacturing, ensuring material stability during high-temperature processing is paramount. This is where secondary antioxidants like Phosphite Antioxidant 168 (CAS 31570-04-4) play an indispensable role. As a leading chemical supplier, NINGBO INNO PHARMCHEM CO.,LTD. understands the critical needs of B2B procurement managers, R&D scientists, and formulators seeking high-performance additives. This guide delves into the properties, applications, and sourcing considerations for this essential chemical.

What is Phosphite Antioxidant 168?

Phosphite Antioxidant 168 is a phosphite ester that acts as a secondary antioxidant. Its primary function is to decompose hydroperoxides, which are harmful byproducts generated during the thermal processing of polymers. By neutralizing these hydroperoxides, it effectively prevents oxidative degradation, chain scission, and discoloration, thereby safeguarding the integrity of the polymer. Its chemical structure, often represented as Tris(2,4-di-tert-butylphenyl) phosphite, contributes to its excellent hydrolysis resistance and low volatility, making it a superior choice for demanding applications.

Key Benefits for B2B Buyers:

  • Enhanced Processing Stability: This antioxidant is a champion at protecting polymers during critical stages like extrusion, injection molding, and compounding. It ensures materials maintain their intended properties even under intense heat.
  • Superior Hydrolysis Resistance: Unlike many other additives, Phosphite Antioxidant 168 performs exceptionally well in the presence of moisture, a common challenge in many industrial environments. This characteristic ensures long-lasting protection.
  • Low Volatility: Its low volatility means less material is lost during processing, contributing to cost-effectiveness and a more stable manufacturing process.
  • Synergistic Effects: Phosphite Antioxidant 168 is rarely used alone. It exhibits remarkable synergy when combined with primary phenolic antioxidants (like those in the 1010 or 1076 families). This potent combination dramatically enhances the polymer's overall thermal stability and resistance to long-term oxidative degradation.
  • Color Retention: By preventing oxidation, it helps maintain the original color of the polymer, which is crucial for aesthetic and performance requirements in end products.

Wide Range of Applications:

The versatility of Phosphite Antioxidant 168 makes it a staple in numerous industries. If you are looking to buy this chemical for your formulations, consider its applications in:

  • Polyolefins: Essential for stabilizing polyethylene (PE), polypropylene (PP), and their copolymers, improving their durability in films, fibers, and molded parts.
  • Engineering Plastics: Crucial for polyamides (PA), polycarbonates (PC), and ABS resins, where high processing temperatures and demanding end-use conditions are common.
  • Styrenic Polymers: Enhances the performance of polystyrene (PS) and its derivatives.
  • Adhesives and Coatings: Improves the thermal stability and longevity of hot melt adhesives and various coating formulations.
  • Rubber and Elastomers: Prevents degradation, maintaining flexibility and performance in rubber products.

Sourcing Phosphite Antioxidant 168 from China: Your Advantage

When seeking to purchase high-quality Phosphite Antioxidant 168, partnering with a reputable manufacturer in China offers significant advantages. At NINGBO INNO PHARMCHEM CO.,LTD., we pride ourselves on delivering consistent purity, competitive price, and reliable supply. Our expertise in chemical synthesis and stringent quality control ensure that you receive a product that meets global standards. Whether you need small R&D quantities or bulk industrial supply, we are equipped to meet your demands. For procurement managers looking for the best supplier, consider our capabilities to fulfill your specific requirements.

Choosing the Right Partner:

When evaluating suppliers for Phosphite Antioxidant 168, consider factors like product purity, production capacity, lead times, and technical support. We are committed to providing not just a product, but a comprehensive solution to your polymer stabilization challenges. Contact us today to inquire about price, availability, and to request a sample. Let us be your trusted partner in achieving superior polymer performance.