How Thickener Technology Improved Grease Performance in Extreme Conditions

The importance of equipment performance has never been more pronounced than it is today. In the United Arab Emirates, whether it is within the oil and gas sector (many of which have operations in the desert), heavy manufacturing or marine applications, there is a need to ensure the equipment is dependable. Lubrication systems can be adversely affected by extreme heat, extreme loads, exposure to wetness, and dust – all of these can have a significant impact on the performance of lubrication systems, costing businesses a lot in both downtime and maintenance.

This is where thickeners have revolutionised grease technology. Historically regarded as only a minor part of lubricating grease, modern-day thickeners are now one of the key elements that help to improve the performance of grease in the most demanding conditions. Examples of how thickeners have been improved through technological advancements are that they have allowed greases to perform at much higher temperatures, resist water contamination, and retain their structure over a longer time period in the most demanding and hostile industrial conditions.

This blog will examine how thickeners function, the advances that have taken place within thickening technology and the role that thickeners play in greases that operate in these extreme temperature conditions.

Grease composition includes three components. They are:

• Base oil (70-95% of total)

• Thickener (5-25% of total)

• Additives

Thickening agents function as a sponge to hold the lubricating oil in place until it is needed by the equipment. The consistency of grease is determined by the thickener and affects grease's characteristics such as temperature resistance, water resistance, mechanical stability, and load-carrying capacity.

If effective thickeners were not present in the grease, then the grease would lose its structure when exposed to high heat or pressure, thereby reducing the grease's ability to protect vital components of machinery.

The Challenge of Extreme Operating Conditions

Extreme operating conditions create additional challenges when using high-performance lubrication. In the UAE there are environmental and operational challenges to lubricants that represent a strain on their performance. Some of these include:

• Ambient temperatures exceeding 50 °C (122 °F).  degrees Fahrenheit or Centigrade) during the summer.

• Heavy dust and sand contamination.

• Exposure to seawater in marine applications.

• Heavy mechanical loads in the construction and mining industries.

• Continuous operation in industrial environments.

Industry reports show that lubrication-related failures are responsible for approximately 40% of worldwide bearing failures. In many cases, poor grease performance in extreme environments is part of the reason. As equipment demands increased, the traditional grease was unable to provide the required level of protection. The result was the development of new advanced thickness technologies.

Development of Modern Thickening Agents

During the past few decades, the development of different types of thickeners has been very active among grease producers. The design of the current generation of thickeners means they are able to have superior performance compared to traditional ones when an application requires this capability.

Lithium Complex Thickeners

One of the biggest advancements in grease technology has been lithium complex thickeners, which have a great combination of properties.

Some advantages of lithium complex thickeners are the following:

• High dropping points over 250 degrees Celsius

• Good mechanical stability

• Excellent water resistance

• Versatility of use across numerous different types of industrial applications

These properties have made lithium complex greases the preferred choice for automotive, industrial and heavy-duty applications.

Calcium Sulfonate Complex Thickeners

The introduction of calcium sulfonate complex thickeners has made some of the biggest advancements in grease thickening agent technology.

Some of the benefits of using calcium sulphonate complex thickeners are:

• Outstanding corrosion protection

• Excellent waterproof protection

• Good load-bearing performance

• Superior thermal stability

For industries located in coastal regions of the UAE, calcium sulfonate greases provide the best protection against moisture and salt water.

Thickeners for Polyureas

The technology of polyureas has become more common in the production of electric motors and long-lasting applications.

The advantages of polyureas are:

• Resistance to oxidation is excellent

• Long service life

• Performance at elevated temperatures

• Lower maintenance requirements

All maintenance professionals who value reliability of equipment and long lubrication intervals select polyureas as their grease of preference.

Modern thickeners improve performance

Enhanced thermal Stability

Heat is one of the greatest enemies to lubricant performance. Traditional greases can break down, separate or oxidise when they have been subjected to prolonged high temperatures.

Modern thickeners maintain grease consistency during extreme thermal stress, enabling the machinery to be operated in an efficient manner and promoting maximum service life of the lubricant and wear of the machine components.

Improved Water Resistance

Water contamination may wash away the lubricant or accelerate the corruption of the machine components. Modern thickener systems create stronger grease structures that prevent ingress of water and maintain the lubricating effectiveness of the grease.

This is significant in marine, construction and industrial applications, where equipment is continually exposed to moisture.

Improved Load-Carrying Capacity

Heavy equipment places great loads on bearings and other moving components. Advanced thickeners reinforce grease structures, keeping a sufficient film of grease present between interacting metal surfaces.

The result of the advanced thickeners' handling of these loads helps reduce friction, reduces the rate of wear on the equipment and increases the service life of the equipment.

Improved Mechanical Strength

Grease is subjected to shear stresses in all phases of operation, and low-quality products become softer and lose their physical properties as they age.

Newer advances in thickener technology allow grease to maintain structural integrity through multiple rounds of stress-- enabling consistent lubricating properties throughout service life.

The Significance of Your Thickener in the UAE

The choice of thickener technology affects both the reliability and costs associated with the operation of manufacturing equipment. By using grease formulated for the conditions and requirements of the UAE, businesses can greatly benefit.

Businesses that utilise advanced grease technology generally experience the following:

• Decreased downtime for maintenance

• Extended life of equipment

• Reduced consumption of lubricant

• Increased productivity of operation

• Greater protection from heat and debris

As industries demand greater productivity and lower maintenance expense, the technology behind thickeners will continue to be a major contributor to the performance of lubricants.

Future Innovations of Thickeners

The future of thickening technology is being explored by researchers, and they are creating next-generation thickening systems that will provide even more value to industrial performance. New technologies, including those that meet sustainability requirements, will continue to evolve and will provide longer service intervals and a higher degree of compatibility with newer synthetic oil technologies.

As industrial machinery becomes more sophisticated and the operating conditions become more rigorous, the importance of using higher-quality thickeners will continue to increase.

Conclusion 

The development of thickeners has revolutionised how grease works under extreme conditions. Modern thickener technologies provide better thermal stability, water resistance, load-carrying capacity, and mechanical durability than ever before, enabling industries to attain higher levels of equipment reliability and efficiency.

For manufacturers and businesses alike, selecting a grease that meets their operational needs using the most appropriate thickening agent is no longer just a maintenance issue; it is an important investment in equipment performance and ongoing operational success in harsh industrial environments that exist throughout the UAE.