Introduction to tread durability
Tire tread wear during use is the main cause of tire replacement and may cause safety issues. Broadly speaking, tread wear can be divided into two categories:
·Abrasive/thermal oxidative wear. The characteristic of this type of wear is that due to the friction encountered during driving and normal environmental exposure, the tread gradually falls off. This form of wear is the most common.
·Cutting and fragmentation wear. This type of wear is common in off road applications. Sharp and large protrusions on the road surface can cut the tread. Then, as the tire continues to be used, the cut part will be torn off and become a large piece of debris.
The tires that require the strongest resistance to cutting and fragmentation are those that operate in harsh environments. For example, giant excavator tires with a diameter of 15-20 feet, large combine harvester tires that press over sharp crop straw, or more common dump truck tires that run on sharp gravel.
How Carbon Black Affects Cutting and Fragmentation Resistance
The phenomenon of cutting and fragmentation wear is very complex, which is completely different from normal road wear. The challenge we face is how to understand and optimize those influential parameters. From the perspective of carbon black, the cutting and fragmentation resistance of rubber composites can usually be improved from three aspects: surface area, structure, and surface activity.
Surface area: High fineness grades can form a larger surface area with which rubber molecules can bind. This leads to high energy dissipation, creating obstacles for the crack tip or tear to continue to expand.
Surface activity: This refers to the level of volatile oxygen groups on the surface of carbon black. The lower the surface activity of carbon black, or the more "dead" the surface, the more free rubber molecules can move and slide on the surface of carbon black, causing friction. This friction is also a source of energy dissipation, which can delay the expansion of cracks or tears.
Structure: If the structure level is lower, it will greatly increase the internal tearing strength. Compared to surface area and surface activity, the exact mechanism behind this phenomenon is still unclear. One explanation is that the lower the structural grade, the less rubber trapped in the filler aggregate, which leads to longer stretching of the composite before fracture. This is a method of optimizing resilience.
Equilibrium method for rubber composites
In fact, formulas aimed at improving resistance to cutting and fragmentation also include balancing other attributes. For example, soft composites are highly susceptible to abrasive wear. Therefore, the solution for agricultural tires primarily used in soft soil may be significantly different from the solution for dump trucks that require driving on cement roads.
We must also consider the urgent need to reduce emissions for environmental sustainability. As mentioned above, the main mechanism for enhancing tear resistance is to increase energy dissipation. High energy dissipation is directly related to high rolling resistance and low fuel efficiency. High energy dissipation is also related to the accumulation of heat in the tire, which has a secondary impact on wear resistance.
Products of Bora Carbon Black
Bora Carbon Black provides a variety of specialized products aimed at improving the durability of tires. BC2041 is a carbon black product exclusively designed by Bora Carbon Black. Compared with standard products such as N134 and N115, it has significantly improved resistance to cutting and fragmentation, and significantly improved tear strength. For further information on Borlacarbon products or to discuss the durability of your tread composites, please visit the website www.birlacarbon.com to contact the Borlacarbon technical team.
About Bora Carbon Black
Bora Carbon Black is a high-quality global producer and supplier of carbon black, with an annual production capacity of over 2 million tons. As the flagship enterprise of Adiabara Group with a market value of $60 billion, our facilities are located in 5 continents and 12 countries, including 16 production factories, 2 regional technical service centers, and 2 global technology research and development centers. Our business is located in major markets in Asia, Europe, and the Americas, providing consistent high-quality products and services to global customers. We have over 100 types of carbon black products, providing solutions for high-quality enterprises in the rubber and specialty application fields.
The special carbon black business of Bora Carbon Black is mainly concentrated in the plastic, ink, and coating markets. Our special carbon black Raven and Conductive can meet the various needs of these markets, providing the required color, conductivity, viscosity, and UV protection functions for a wide range of applications. Our modern research infrastructure and advanced technology center enable us to sincerely cooperate with customers and provide excellent solutions for any challenge. Bora Carbon Black is committed to significantly reducing its impact on the environment by optimizing its production methods, thereby making outstanding contributions to the entire community and society, and ensuring the continuous provision of high-quality products to our customers.
Disclaimer: The image materials and articles on this platform come from the internet, so the copyright belongs to the original author. If any infringement is caused to your copyright and interests, please contact us. We apologize deeply and promptly delete it. Article source: China Rubber Industry Association
Latest news
- The Combination and Foaming Process of
- Famous tire enterprise with multiple d
- Ministry of Commerce Initiate a final
- The Effect of Carbon Black on the Cutt
- Stop work orders encounter rising pric
- Lanzhou Petrochemical's carboxylated n
Contact us
- ADD: Room 4210, CEC Business Hall, No. 121-4, Nanjing South Street, Heping District, Shenyang
- TEL: 13644907299
- FAX: 024-25361668
- E-mail: boss@long-green.cn
> Industry news