In the specialized field of polymer additives, understanding the precise chemical properties and benefits of each component is crucial. Methylenebis(2,6-di-tert-butylphenol), identified by CAS number 118-82-1, stands out as a highly effective antioxidant with significant technical advantages for a variety of polymer systems. As a dedicated supplier, NINGBO INNO PHARMCHEM CO.,LTD. offers this key compound to enhance your product formulations.

The chemical structure of Methylenebis(2,6-di-tert-butylphenol) is central to its function. It's a bisphenol derivative featuring two phenolic rings connected by a methylene bridge, with each ring substituted by two tert-butyl groups at the ortho positions relative to the hydroxyl group. This arrangement provides substantial steric hindrance, which is essential for its role as a radical scavenger. The high degree of steric hindrance contributes to its thermal stability and low volatility, making it suitable for polymer processing conditions that often involve elevated temperatures.

Technically, Methylenebis(2,6-di-tert-butylphenol) typically exhibits a purity of 98% or higher, ensuring consistent performance. Its melting point generally falls within the range of 155-159°C, indicating its solid, crystalline nature at room temperature. This form factor facilitates easy handling and incorporation into polymer melts during compounding. The compound's chemical inertness under normal storage conditions further adds to its appeal as a reliable additive.

The primary technical advantage lies in its capacity to prevent polymer degradation. It is particularly effective as a stabilizer for polyethylene and polypropylene, offering excellent melt processing stability and long-term thermal stability. This translates to plastics that retain their strength, flexibility, and color over time, even when exposed to harsh operational environments. Its performance as an antioxidant for ABS resin and polyesters is equally noteworthy, helping to maintain impact strength and prevent yellowing.

For applications requiring compliance with food contact regulations, Methylenebis(2,6-di-tert-butylphenol) is recognized for its suitability as a food grade polymer antioxidant. This broad applicability allows manufacturers to use a single, high-quality additive across diverse product lines, simplifying inventory and quality control.

NINGBO INNO PHARMCHEM CO.,LTD. provides Methylenebis(2,6-di-tert-butylphenol) with guaranteed specifications to meet the demanding requirements of polymer manufacturers. Our commitment to quality ensures that you receive a product that delivers consistent polymer oxidation resistance and enhances the overall performance and lifespan of your plastic materials. Whether you are developing new formulations or seeking to improve existing ones, understanding the technical merits of CAS 118-82-1 is a key step towards achieving superior results.