What is the abrasion loss of fluorosilicone FVMQ?

Abrasion loss is a crucial performance indicator for fluorosilicone FVMQ, influencing its application scope and service life. As a professional fluorosilicone FVMQ supplier, I am committed to providing high - quality products and in - depth technical knowledge. In this blog, we will explore what the abrasion loss of fluorosilicone FVMQ is, the factors affecting it, and its significance in various industries.

What is Abrasion Loss?

Abrasion loss refers to the amount of material removed from the surface of a fluorosilicone FVMQ sample when it comes into contact with a friction surface under certain conditions. It is usually measured in terms of volume loss (mm³) or mass loss (mg). The abrasion process can be caused by various factors, such as sliding friction, rolling friction, and impact friction.

When fluorosilicone FVMQ is used in applications where it is constantly exposed to friction, such as seals, gaskets, and conveyor belts, abrasion loss becomes a critical factor. A high abrasion loss means that the material will wear out quickly, leading to a shorter service life and potential failure of the component. On the other hand, a low abrasion loss indicates better wear resistance, which can ensure the long - term stable operation of the product.

Factors Affecting the Abrasion Loss of Fluorosilicone FVMQ

1. Chemical Composition

The chemical structure of fluorosilicone FVMQ plays a fundamental role in its abrasion resistance. Fluorosilicone rubber contains both fluorine and silicon atoms in its molecular chain. The fluorine atoms provide excellent chemical resistance and low surface energy, which can reduce the adhesion between the rubber and the friction surface, thereby reducing abrasion. The silicon atoms contribute to the rubber's flexibility and elasticity, allowing it to withstand deformation during the abrasion process without being easily damaged.

In addition, the cross - linking density of the rubber also affects abrasion loss. A higher cross - linking density generally results in better abrasion resistance because it makes the rubber matrix more rigid and less likely to be deformed or torn under friction.

2. Filler Content

Fillers are often added to fluorosilicone FVMQ to improve its mechanical properties, including abrasion resistance. Common fillers include silica, carbon black, and metal oxides. Silica is a widely used filler in fluorosilicone rubber. It can enhance the interaction between the rubber molecules and the filler particles, forming a strong reinforcing network. This network can effectively disperse the stress during the abrasion process, reducing the local stress concentration and thus lowering the abrasion loss.

Carbon black can also improve the abrasion resistance of fluorosilicone FVMQ. It has a large specific surface area and can adsorb rubber molecules on its surface, increasing the hardness and strength of the rubber. However, the type and amount of carbon black need to be carefully selected, as excessive carbon black may lead to a decrease in the rubber's flexibility and processability.

3. Operating Conditions

The operating conditions, such as load, speed, temperature, and the nature of the friction surface, have a significant impact on the abrasion loss of fluorosilicone FVMQ.

• Load: A higher load will increase the pressure between the rubber and the friction surface, resulting in more severe abrasion. As the load increases, the contact area between the rubber and the surface also increases, which can lead to a higher probability of wear and tear.
• Speed: The speed of the relative motion between the rubber and the friction surface affects the heat generation during the abrasion process. A higher speed can generate more heat, which may cause the rubber to soften or even decompose, increasing the abrasion loss.
• Temperature: Fluorosilicone FVMQ has a wide temperature range of application. However, extreme temperatures can affect its abrasion resistance. At high temperatures, the rubber may become softer, reducing its hardness and strength, and thus increasing the abrasion loss. At low temperatures, the rubber may become brittle, making it more prone to cracking and chipping.
• Nature of the friction surface: The roughness, hardness, and chemical properties of the friction surface can also influence the abrasion loss. A rough surface will cause more severe abrasion than a smooth surface because it can cause more scratches and cuts on the rubber surface. A hard friction surface can also cause more damage to the rubber, especially if the hardness difference between the two materials is large.

Measuring the Abrasion Loss of Fluorosilicone FVMQ

There are several standard test methods for measuring the abrasion loss of rubber materials, including the DIN abrasion test, the Akron abrasion test, and the Taber abrasion test.

• DIN Abrasion Test: In this test, a cylindrical rubber specimen is pressed against a rotating abrasive paper under a specified load. The specimen is then moved across the abrasive paper for a certain number of revolutions. The volume loss of the specimen is measured and used to calculate the abrasion loss.
• Akron Abrasion Test: In the Akron abrasion test, a rubber specimen is mounted on a rotating wheel and brought into contact with an abrasive disk at a certain angle. The specimen rotates for a specified number of revolutions, and the mass loss of the specimen is measured to determine the abrasion loss.
• Taber Abrasion Test: In this test, a flat rubber specimen is placed on a rotating platform, and two abrasive wheels are pressed against the specimen under a specified load. The specimen rotates for a certain number of cycles, and the mass loss of the specimen is measured to evaluate the abrasion resistance.

Significance of Abrasion Loss in Different Industries

1. Automotive Industry

In the automotive industry, fluorosilicone FVMQ is widely used in engine seals, gaskets, and fuel system components. These components are often exposed to high - temperature, high - pressure, and high - friction environments. Low abrasion loss is essential to ensure the long - term reliability of these components. For example, engine seals need to maintain a good sealing performance even after long - term operation. If the abrasion loss of the seal material is too high, it may lead to oil leakage, which can affect the engine's performance and even cause damage.

2. Aerospace Industry

In the aerospace industry, fluorosilicone FVMQ is used in various applications, such as aircraft engine seals, hydraulic system seals, and fuel tank seals. These applications require materials with excellent abrasion resistance, chemical resistance, and high - temperature performance. The harsh operating conditions in aerospace applications, such as high - speed airflow, extreme temperatures, and high - pressure environments, make abrasion loss a critical factor. A low abrasion loss can ensure the safety and reliability of aerospace components during long - term flight.

3. Industrial Manufacturing

In industrial manufacturing, fluorosilicone FVMQ is used in conveyor belts, rollers, and other equipment that is subject to friction. Conveyor belts need to transport materials continuously, and the abrasion loss of the belt material can affect its service life and transportation efficiency. By using fluorosilicone FVMQ with low abrasion loss, the frequency of belt replacement can be reduced, and the production cost can be saved.

Our Products and Their Abrasion Resistance

As a fluorosilicone FVMQ supplier, we offer a wide range of products with excellent abrasion resistance. Our Peroxy Vulcanized Fluororubber Raw Rubber and Bisphenol Vulcanized Fluororubber Raw Rubber are carefully formulated to meet the different needs of our customers.

We use advanced production technology and high - quality raw materials to ensure the chemical composition and filler content of our products are optimized for low abrasion loss. Our products have been tested according to international standards, and the test results show that they have excellent abrasion resistance, which can meet the requirements of various industries.

Conclusion

The abrasion loss of fluorosilicone FVMQ is a complex property that is affected by multiple factors, including chemical composition, filler content, and operating conditions. Understanding the abrasion loss and its influencing factors is crucial for selecting the right fluorosilicone FVMQ products for different applications.

As a professional fluorosilicone FVMQ supplier, we are dedicated to providing high - quality products with low abrasion loss. If you are interested in our products or have any questions about the abrasion resistance of fluorosilicone FVMQ, please feel free to contact us for further discussion and potential procurement. We look forward to working with you to meet your specific needs.

References

• ASTM D5963 - 11(2017), Standard Test Method for Rubber Property - Abrasion Resistance (Rotary Drum Abrader).
• ISO 4649:2010, Rubber, vulcanized or thermoplastic — Determination of abrasion resistance using a rotating cylindrical drum device.
• DIN 53516:2016 - 03, Rubber testing; determination of abrasion resistance.