Why ZEO
The Advantages of
Ester Base Oil
Polyol Ester
What are Polyol Esters?
Polyol esters are synthesized by reacting a polyol (an alcohol with multiple hydroxyl groups) with carboxylic acids.
The specific polyol and carboxylic acids used determine the properties of the resulting ester.
They are a class of synthetic esters, meaning they are not derived from natural sources like mineral oils.
Polyol esters in the lubrication field are a type of synthetic lubricant known for their excellent high-temperature performance and ability to maintain low-temperature fluidity. They are commonly used in various applications, including jet engine lubricants, refrigeration systems, and hydraulic fluids, due to their unique combination of properties.
Benefits of
Polyol Esters as a Base Oil
Polyol esters offer several advantages as base oils, primarily due to their exceptional performance in high-temperature and demanding applications, biodegradability, and ability to be formulated with renewable resources. They exhibit excellent lubricity, high viscosity indexes, and good low-temperature performance, making them suitable for fire-resistant fluids and various industrial applications. Furthermore, their biodegradability and renewability align with environmental regulations and sustainability goals.
1) Superior Wear Protection: POEs can form strong lubricating films on metal surfaces, reducing friction and wear.
2) High Viscosity Index: This means they maintain their viscosity well across a wide temperature range, ensuring consistent lubrication even in extreme conditions.
3) Excellent Thermal and Oxidative Stability: POEs can withstand high temperatures and resist degradation, preventing the formation of varnish and sludge.
4) Good Low-Temperature Properties: They retain their fluidity at low temperatures, making them suitable for cold environments.
5) Solvency: They can dissolve varnish and other deposits, keeping engine parts clean.
6) Biodegradability: Many POEs are derived from renewable resources and are readily biodegradable, reducing environmental impact.
7) Low Toxicity: They are generally considered low in toxicity and non-bioaccumulative.
8) Compliance with Regulations: POEs can help formulations meet environmental standards like the European Ecolabel and Vessel General Permit.
Journal Papers about Polyol Esters as a Base Oil
The Advantages of Group V
Polyol Ester Base Oil
Group V Polyol Ester base oils offer advantages like superior high-temperature performance, better wear protection, and enhanced cold start behavior compared to conventional oils.
1) High Thermal Stability : maintaining their viscosity and lubricity at high temperature
2) Excellent Lubricity: reducing friction and wear in the hydrodynamic lubrication regime and elasto-hydrodynamic lubrication regime by creating a lubricating film with physisorption and physical chemical absorption
3) Better Cold Start Performance: having better cold start behavior, allowing for smoother operation in colder temperatures.
4) Great Seal Compatibility: being well compatible with sealing materials, paints, and hoses.
5) Low Volatility: preventing engine oil from decreasing at high temperatures through the evaporation.
6) Higher Viscosity Index: small changing in viscosity regardless of changes of temperature.
7) Good Oxidation Stability: having good oxidation resistance, preventing degradation and extending their lifespan.
When making engine oil, there is an advantage in that it can produce high-quality engine oil with improved low-temperature viscosity characteristics, high-temperature viscosity characteristics, solubility, lubricity, and so on.