Antioxidant 1076, also known as octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, is a widely used phenolic antioxidant in the polymer and plastic industries. As a reliable supplier of Antioxidant 1076, I am delighted to share with you its physical properties, which play a crucial role in its performance and applications.
Physical Appearance
Antioxidant 1076 typically presents itself as a white or slightly yellowish crystalline powder. This fine powder form is advantageous in various industrial processes. Its uniform and fine texture allows for easy handling and mixing with other polymers and additives. When incorporated into polymer matrices, it can disperse evenly, ensuring consistent antioxidant protection throughout the material. For example, in the production of polyethylene or polypropylene plastics, the powder form of Antioxidant 1076 can be smoothly blended with the polymer pellets during the extrusion or molding process.
Melting Point
The melting point of Antioxidant 1076 ranges from 50 - 55°C. This relatively low melting point is significant for its use in polymer processing. During the manufacturing of plastics, polymers are often processed at elevated temperatures. When Antioxidant 1076 is added to the polymer melt, its low melting point enables it to quickly dissolve and disperse within the polymer matrix. This ensures that the antioxidant can start functioning immediately to prevent oxidation reactions. For instance, in the injection - molding process of polyolefins, the polymer is heated to a molten state, and the Antioxidant 1076 melts and mixes well with the polymer, providing protection against thermal and oxidative degradation during the molding process and in the subsequent use of the plastic product.
Solubility
Antioxidant 1076 has good solubility in many organic solvents. It is soluble in common organic solvents such as benzene, toluene, chloroform, and acetone. This solubility characteristic is beneficial for its application in different formulations. In some cases, it may be necessary to dissolve Antioxidant 1076 in a solvent to prepare a solution for specific coating or impregnation processes. For example, in the production of antioxidant - containing coatings for metal surfaces, Antioxidant 1076 can be dissolved in an appropriate organic solvent and then applied to the metal surface. The good solubility ensures that the antioxidant can be evenly distributed in the coating, providing effective protection against oxidation and corrosion.
On the other hand, it has very low solubility in water. This property is also advantageous in many applications. In outdoor plastic products or products that may come into contact with moisture, the low water - solubility of Antioxidant 1076 prevents it from being easily washed out by water. This ensures long - term antioxidant protection for the polymer material, even in humid environments.
Density
The density of Antioxidant 1076 is approximately 0.95 g/cm³. This density value is important for its mixing and processing with polymers. When blending Antioxidant 1076 with polymers, the similar density to some polymers helps to ensure a homogeneous mixture. If the density difference between the antioxidant and the polymer is too large, there may be issues such as sedimentation or segregation during the mixing process. The appropriate density of Antioxidant 1076 allows it to be well - integrated with the polymer, providing consistent antioxidant performance throughout the material.
Volatility
Antioxidant 1076 has low volatility. This is a crucial property, especially in high - temperature polymer processing. During the processing of polymers at high temperatures, volatile substances can cause problems such as foaming, surface defects, and loss of the antioxidant. The low volatility of Antioxidant 1076 ensures that it remains in the polymer matrix during the processing and subsequent use of the plastic product. It can continue to provide long - term antioxidant protection without being lost due to evaporation. For example, in the extrusion of polypropylene fibers at high temperatures, the low volatility of Antioxidant 1076 ensures that it stays in the fibers, protecting them from oxidation and maintaining their mechanical properties over time.
Compatibility with Other Antioxidants
Antioxidant 1076 is highly compatible with other antioxidants such as Antioxidant 1135, Antioxidant 1330, and Antioxidant 3114. This compatibility allows for the formulation of synergistic antioxidant systems. By combining Antioxidant 1076 with other antioxidants, different mechanisms of antioxidant action can be utilized. For example, Antioxidant 1076 mainly acts as a primary antioxidant by donating hydrogen atoms to free radicals, while some other antioxidants may act as secondary antioxidants by decomposing hydroperoxides. The combination of these antioxidants can provide more comprehensive and effective antioxidant protection for polymers, improving the overall stability and durability of the plastic products.
Applications Based on Physical Properties
Due to its unique physical properties, Antioxidant 1076 has a wide range of applications. It is commonly used in polyolefins such as polyethylene and polypropylene, which are widely used in packaging, automotive parts, and consumer goods. In the packaging industry, the antioxidant protects the plastic packaging materials from oxidation, preventing discoloration, embrittlement, and loss of mechanical properties. This ensures that the packaged products are well - protected during storage and transportation.
In the automotive industry, polyolefin parts with Antioxidant 1076 can withstand high - temperature environments under the hood and exposure to sunlight. The antioxidant helps to maintain the mechanical strength and appearance of the parts, reducing the risk of premature failure.
Conclusion
In conclusion, the physical properties of Antioxidant 1076, including its physical appearance, melting point, solubility, density, volatility, and compatibility with other antioxidants, make it an excellent choice for polymer stabilization. These properties enable it to be easily incorporated into polymer matrices, provide effective antioxidant protection during processing and use, and be combined with other antioxidants for enhanced performance.
If you are in the market for high - quality Antioxidant 1076 for your polymer processing needs, we are here to provide you with the best products and services. We understand the importance of these physical properties in your applications and can offer customized solutions to meet your specific requirements. Contact us today to start a procurement discussion and discover how our Antioxidant 1076 can improve the quality and durability of your polymer products.
References
- "Plastic Additives Handbook", Hans Zweifel, Carl Hanser Verlag.
- Research papers on phenolic antioxidants in polymer science journals.