In the realm of polymer science and manufacturing, the battle against degradation is perpetual. Oxidative processes, driven by environmental factors like heat and light, can severely compromise the integrity and lifespan of polymeric materials. To combat this, sophisticated antioxidants are employed, and among the most effective and versatile is Antioxidant 1135, chemically known as Octyl-3,5-di-tert-butyl-4-hydroxy-hydrocinnamate (CAS No. 125643-61-0). As a leading manufacturer and supplier, we are committed to providing high-quality solutions, and understanding the nuances of this critical additive is key for our B2B clients.

Antioxidant 1135 belongs to the class of sterically hindered phenolic antioxidants. Its molecular structure is meticulously designed for optimal performance. The core is a phenolic ring bearing a hydroxyl group, which is the active site for scavenging free radicals. Flanking this are bulky tert-butyl groups, providing steric hindrance. This hindrance not only enhances the stability of the phenoxy radical formed after hydrogen donation but also influences the compound's solubility and compatibility with various polymer matrices. The attached octyl ester chain further contributes to its liquid nature at room temperature and excellent solubility in non-polar organic substances.

The primary function of Antioxidant 1135 is to act as a radical scavenger. During polymer processing and throughout the product's service life, free radicals can initiate chain reactions that lead to polymer chain scission, cross-linking, and ultimately, material degradation. Antioxidant 1135 efficiently donates a hydrogen atom from its phenolic hydroxyl group to these highly reactive radicals, converting them into more stable species and terminating the degradation chain. This mechanism is crucial for maintaining the mechanical strength, color stability, and overall performance of the polymer.

One of the standout features of this antioxidant is its liquid form. Unlike solid antioxidants, which can sometimes pose challenges in dispersion or require melting, liquid antioxidants are generally easier to handle, pump, and meter accurately. This property makes Antioxidant 1135 particularly suitable for applications requiring precise dosing or for integration into continuous manufacturing processes. For procurement managers, this translates to improved process efficiency and consistent product quality.

The versatility of Antioxidant 1135 is another significant advantage. It is highly effective across a wide spectrum of organic polymers, including but not limited to PVC, ABS, and PE. Its utility extends to various rubbers such as SBR, BR, and NBR, as well as synthetic fibers, waxes, fats, oils, and lubricants. This broad applicability makes it a go-to solution for many industries, simplifying inventory management and sourcing efforts. When you look to buy this versatile additive, ensuring it meets purity standards (typically ≥98%) is key.

Furthermore, Antioxidant 1135 exhibits a notable synergistic effect when combined with secondary antioxidants, such as phosphites. This combination offers enhanced protection against both thermal oxidation and peroxide decomposition, providing a more robust stabilization system. It can also be used in conjunction with UV absorbers and Hindered Amine Light Stabilizers (HALS) for comprehensive protection against thermal and light degradation in outdoor applications. For businesses aiming to optimize performance and cost, consulting with our technical team about these synergistic blends is highly recommended.

As a leading manufacturer and supplier, we understand the importance of consistent quality and reliable supply. Our Antioxidant 1135 is produced under stringent quality control measures to ensure it meets the highest industry standards. We offer competitive pricing for bulk quantities and are equipped to meet the demands of large-scale manufacturing. For those seeking to purchase this critical additive, engaging with us ensures access to a high-performance product backed by technical expertise and a commitment to customer satisfaction. We are your trusted source for Antioxidant 1135.