The product, Factory Supply Antioxidant 168 (Irgafos 168) with CAS 31570 - 04 - 4, is a well - known phosphite antioxidant. It is widely recognized in the chemical industry for its high - quality performance and cost - effectiveness. The CAS number, 31570 - 04 - 4, is a unique identifier for this chemical compound, which helps in accurate identification and traceability in various chemical databases and regulatory filings.
Antioxidant 168 has a white or off - white powder appearance. It has a melting point range of approximately 182 - 187°C, which makes it suitable for use in various polymer processing applications where high - temperature stability is required. The density of this antioxidant is around 1.03 - 1.06 g/cm³. It is soluble in common organic solvents such as toluene, xylene, and cyclohexane, but insoluble in water.
Antioxidant 168 is mainly used as a processing stabilizer in the polymer industry. It is added to polymers to prevent their degradation during high - temperature processing, such as extrusion, injection molding, and blow molding. By protecting polymers from thermal oxidation, it helps to maintain the physical and mechanical properties of the final products, such as color, strength, and flexibility.
It is commonly used in polyolefins, including polyethylene (PE) and polypropylene (PP). In these polymers, Antioxidant 168 can effectively reduce the formation of peroxide radicals, which are responsible for the degradation of polymers during processing. Additionally, it can be used in engineering plastics, such as polycarbonate (PC), polyamide (PA), and polyphenylene oxide (PPO), to improve their processing stability and long - term performance.
When using Antioxidant 168, it is recommended to add it during the polymer compounding process. The dosage of Antioxidant 168 depends on the type of polymer, processing conditions, and the desired level of protection. Generally, the recommended dosage ranges from 0.05% to 0.5% based on the weight of the polymer.
It can be added alone or in combination with other antioxidants, such as phenolic antioxidants. The combination of Antioxidant 168 with phenolic antioxidants can provide a synergistic effect, which can significantly enhance the antioxidant performance of the polymer. Before adding Antioxidant 168, it should be uniformly mixed with the polymer to ensure its even distribution in the polymer matrix.
In a large - scale polypropylene (PP) production plant, the addition of Antioxidant 168 during the extrusion process has shown significant benefits. Before using Antioxidant 168, the PP products had a yellowing problem during high - temperature extrusion, and their mechanical properties decreased rapidly after a short - term storage. By adding 0.2% of Antioxidant 168 to the PP resin, the yellowing of the products was effectively reduced, and the mechanical properties, such as tensile strength and elongation at break, were maintained at a high level even after long - term storage.
In another case, a manufacturer of polycarbonate (PC) products used Antioxidant 168 in combination with a phenolic antioxidant. The PC products were used in automotive headlamp lenses, which require high - temperature resistance and excellent optical properties. After adding the antioxidant combination, the PC headlamp lenses showed better transparency and resistance to yellowing during the injection molding process and long - term use under high - temperature conditions.
If you have any questions or need further information about Factory Supply Antioxidant 168 (Irgafos 168), please feel free to contact us. You can reach us via email at info@vivalr.com or call us at (86) 15866781826.
Este es William, CEO de Zhishang Chemical Co., Ltd.
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