Product Code: PPA 1076,Equivalent to IRGANOX 1076
1. General Information
Product Name: Antioxidant 1076
also known as Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
CAS No: 2082 – 79 – 3
Molecular Formula: C₃₅H₆₂O₃
Molecular Weight: 530.86 g/mol
2. Physical Properties
Appearance: Presents as a white or slightly yellowish crystalline powder, which is easy to handle and blend in various manufacturing processes. Its fine – powder form allows for uniform dispersion in different materials, ensuring consistent antioxidant performance.
Melting Point: Ranges from 50 – 55 °C. This relatively low melting point enables easy processing at moderate temperatures, reducing energy consumption during production.
Boiling Point: Approximately 568.1 ± 45.0 °C (predicted), indicating high thermal stability during processing at elevated temperatures.
Density: About 0.929 ± 0.06 g/cm³ (predicted), providing a characteristic physical parameter for quality control and formulation calculations.
Flash Point: > 230 °F, suggesting a low risk of ignition during normal handling and processing, providing safety assurance in industrial operations.
Solubility: Insoluble in water (2.85 μg/L at 20 °C), but highly soluble in many organic solvents. This solubility profile makes it suitable for use in a wide range of organic – based materials.
3. Chemical Reactivity and Stability
Stability: Stable under normal storage conditions. However, it is combustible, and dust – air mixtures are potentially explosive. It should be stored away from strong oxidizing agents, strong acids, and strong bases, as it is incompatible with them. Exposure to extreme heat, light, or high – humidity environments may gradually degrade its antioxidant properties. Thus, proper storage in a cool, dry place away from direct sunlight is recommended.
Reaction Mechanism: As a sterically hindered phenolic antioxidant, it functions by donating a hydrogen atom to free radicals. This reaction terminates the radical chain reaction, effectively preventing the oxidative degradation of organic substrates. By interrupting the oxidation process, it helps to maintain the integrity and performance of materials over time.
4. Applications
Plastic Industry
Polyolefins: In polyethylene (PE) and polypropylene (PP), it effectively protects against thermal – oxidative degradation during processing (such as extrusion, injection molding) and long – term use. For instance, in the production of PP pipes for water supply systems, Antioxidant 1076 ensures the pipes maintain their mechanical strength and durability over years of service, even when exposed to heat and oxygen in the environment.
Engineering Plastics: For materials like polycarbonate (PC), acrylonitrile – butadiene – styrene (ABS), and polyamide (PA), it helps maintain their mechanical properties, appearance, and electrical insulation properties. In the manufacturing of electronic device housings made of PC or ABS, it prevents yellowing and embrittlement caused by oxidation, ensuring the products meet high – quality standards.
Rubber Industry
Synthetic Rubbers: In butadiene rubber (BR), styrene – butadiene rubber (SBR), nitrile – butadiene rubber (NBR), and others, it inhibits the aging of rubber due to heat, oxygen, and mechanical stress. In tire production, it improves the tire’s resistance to ozone cracking and thermal aging, enhancing tire safety and lifespan.
Thermoplastic Elastomers: It also shows excellent performance in thermoplastic elastomers, maintaining their elasticity and flexibility over time.
Fiber and Textile Industry
Synthetic Fibers: In polyester, polyamide, and polypropylene fibers, it protects against oxidative degradation during spinning, weaving, and long – term use. This is crucial for ensuring the colorfastness, strength, and durability of textiles made from these fibers.
Lubricant and Oil Industry
Lubricating Oils: Added to lubricating oils, it inhibits oxidation, which can lead to the formation of sludge, varnish, and acids that can damage engines and machinery. By preventing oxidation, it extends the service life of lubricants, reduces friction, and improves the overall performance of mechanical systems.
Industrial Oils: In hydraulic oils, gear oils, and other industrial oils, it provides protection against oxidative degradation, ensuring smooth operation and reducing maintenance costs.
Adhesive and Sealant Industry
Adhesives: In various adhesives, such as epoxy adhesives, polyurethane adhesives, and acrylic adhesives, it helps maintain the adhesive strength and stability over time. This is important for applications in the automotive, aerospace, and construction industries, where long – term adhesion is crucial.
Sealants: In sealants used to prevent the ingress of moisture, dust, and gases, Antioxidant 1076 protects the sealant material from degradation, ensuring long – term sealing performance. For example, in building construction, it helps sealants maintain their flexibility and adhesion properties, preventing leaks and ensuring energy efficiency.
5. Usage and Dosage
Usage: Antioxidant 1076 can be added directly to the material during the manufacturing process. It should be thoroughly mixed to ensure uniform distribution throughout the matrix.
Dosage: The typical dosage of Antioxidant 1076 usually ranges from 0.02% – 0.5% by weight, depending on the specific application, the type of substrate, and the expected lifespan of the product.
6. Advantages
High – Efficiency: Even at low dosage levels, it can effectively protect organic materials from thermo – oxidative degradation, providing long – term stability.
Non – Staining and Non – Discoloring: It does not cause staining or discoloration of the materials it is added to, making it suitable for applications where visual appearance is important, such as in clear plastics, light – colored rubbers, and textiles.
Low Volatility: With low volatility, it remains in the material over time, maintaining its antioxidant effectiveness and reducing the risk of loss during processing and use.
Good Compatibility: Antioxidant 1076 has excellent compatibility with a wide range of polymers, additives, and other materials, allowing for easy formulation in different industries.
Approved for Food Contact: In many countries, it has been approved for use in food – contact materials, such as food – packaging plastics. This makes it suitable for applications where the material may come into contact with food, ensuring food safety and compliance with relevant regulations.
7. Handling and Safety
Personal Protective Equipment: When handling Antioxidant 1076, wear appropriate personal protective equipment, including chemical – resistant gloves, safety goggles, and protective clothing.
Ventilation: Ensure good ventilation in the handling area to avoid the accumulation of dust.
8. Packaging and Storage
Packaging: Usually packed in kraft paper bags of 25 kgs net each with a PE liner inside.
Storage: Store in a well – ventilated, cool, and dry area, with a recommended storage temperature between 2 – 8 °C. Avoid direct sunlight, heat sources, and humidity. Under proper storage conditions, it has a shelf – life of at least 1 year.