HA557 ALKYL DIPHENYLAMINE(ADPA)
Alkylated Diphenylamine (ADPA) is a highly effective antioxidant additive designed to improve the oxidative stability and service life of lubricants and fuels. Developed and supplied by HEAO, this product is engineered to meet the demanding requirements of modern industrial and automotive formulations.
Oxidation is one of the primary causes of lubricant degradation, leading to sludge formation, viscosity increase, and reduced performance. ADPA works by inhibiting oxidation reactions, helping maintain the chemical integrity of base oils under high-temperature and high-stress conditions. Its chemical structure allows it to function as a radical scavenger, making it especially valuable in systems exposed to prolonged thermal stress.
This additive is widely recognized for its excellent solubility in various base oils, including mineral oils and synthetic fluids, ensuring seamless blending and consistent performance.
ALKYL DIPHENYLAMINE(ADPA) Advantages
1. Excellent Oxidation Resistance
Effectively delays oxidation processes, extending the lifespan of lubricants and reducing maintenance frequency.
2. High Thermal Stability
Maintains performance even under high-temperature conditions, making it suitable for demanding industrial and automotive applications.
3. Strong Compatibility
Blends easily with a wide range of base oils and additive systems without causing instability or separation.
4. Sludge and Deposit Control
Minimizes the formation of harmful by-products such as sludge and varnish, helping keep systems clean.
5. Versatile Formulation Use
Can be used in both mineral and synthetic lubricant systems, offering flexibility for formulators.
RECOMMENDED DOSAGE
Recommended dosage: 0.1-1.0%
Applications and Dosage Guidelines of ALKYL DIPHENYLAMINE(ADPA)
Typical Applications
- Lubricating oils: Engine oils, hydraulic fluids, and turbine oils
- Industrial oils: Gear oils, compressor oils, and heat transfer fluids
- Fuel systems: To improve storage stability and prevent degradation
Dosage Guidelines
- Recommended dosage typically ranges from 0.2% to 1.0%, depending on the formulation and performance requirements.
- For high-temperature or long-life applications, higher concentrations may be required.
- It is advisable to conduct formulation testing to determine the optimal dosage for specific use cases.
CHARACTERISTICS
ITEM | TYPICAL VALUE | TEST METHOD |
Appearance | Clear liquid | Visual |
Density (20℃), kg/m3 | Report | NB/SH/T 0870, ASTM D7042 |
Flash Point (COC), ℃ | ≥180 | GB/T 3536, ASTM D92 |
Kinematic Viscosity (40℃), mm2/s | Report | NB/SH/T 0870, ASTM D7042 |
TBN, mg KOH/g | ≥150 | SH/T 0251, ASTM D2896 |
Basic Nitrogen, %(m/m) | 4.0-5.0 | NB/SH/T 0704, ASTM D5762 |
FAQ
1. What is the main function of this product?
It acts as an antioxidant, preventing oxidation in lubricants and fuels to extend their usable life.
2. Can it be used in synthetic oils?
Yes, it is compatible with both mineral and synthetic base oils.
3. Is it suitable for high-temperature applications?
Absolutely. Its high thermal stability makes it effective in elevated temperature environments.
4. Does it affect other additives in the formulation?
No, it is designed to work well with most additive systems without negative interactions.
5. How should it be stored?
Store in a cool, dry place away from direct sunlight and moisture to maintain product stability.
6. Can HEAO provide customized solutions?
Yes, HEAO offers customization options based on specific formulation and performance needs.