This article focuses on the types of tires, essential raw materials, and advancements in this particular field.
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A wheel is the metal assembly that is joined to the vehicle assembly body via bolted connection through an axle. A tire, on the other hand, is the rubber casing cast over the wheel surface. Most vehicular tires are pneumatic, which means that air is retained at a specific pressure within the tire. Pneumatic tires used to have an inner tube to keep the compressed air, but recent advancements have allowed them to be built to establish a compression sealing with the wheel rim.
Importance of Tires
Tires play an essential role in supporting and uniformly distributing the vehicle load and stresses imparted due to the frictional forces (air drag as well as the ground friction) and the forward motion of the vehicle. Apart from this, they play a substantial role in the transmission of traction as well as the braking force to the road surface along with the absorption of road shocks.
They play a vital role as a component of the vehicle control and steering system and are useful in regulating and maintaining the vehicles’ direction of travel. Tires play an important part in guaranteeing the safety of your vehicle since they are the sole contact point between the vehicle and the road.
Types of Tires
There are different types of tires, each manufactured for a specific vehicle and specific operating conditions. It is quite essential to select the most viable option to guarantee a smooth and safe operation. These several types include all-season tires, performance tires, touring tires, summer tires, track and racing tires, and specialty tires.
All-season tires are generally used as they provide safe traction for the vehicle in all types of seasons. The tread design would be uneven, with concentric channels for traction on a wet or slippery surface. Touring tires, often known as Grand touring tires, are developed to provide more reactive steering.
Touring tires often feature faster speed ratings, which indicates they can withstand greater speeds while still providing the operator with safety as well as complete control. Touring tires often have reduced speed limits than performance tires. For rainy weather grip, performance tires often feature bigger circular and transverse grooves. Track and competition tires are rarely utilized regularly. They are designed to maintain continual road traction in dry circumstances with a focus to reach the top tier of tire performance in extreme conditions.
Essential Raw Materials of Tires
The manufacturing of tires is a complex scientific process that utilizes various raw materials, each serving a specific purpose. Tires are made up of around 200 different raw materials. Experts use this vast variety to blend tire elements, each of which plays a specific role based on the specific purpose the tire is intended for. The main raw materials widely utilized include rubber (natural rubber and synthetic rubber type), carbon black, metallic elements, textile, sulfur, and a few other components in trace amounts.
Utilization of Rubber in Tire Manufacturing
Rubber materials utilized in the tire industry are composed of elastomers, reinforcing additives, epoxies, and other substances. Natural and Synthetic rubber both are essential for the production of tires. For obtaining natural rubber, trees containing a milky white fluid composed of rubber aggregates in abundance are the main sources. Natural rubber minimizes intrinsic overheating in tires while providing high stiffness, resistance, and uniformity in compound compositions.
Sixty percent of the rubber utilized by the tire industry is synthetic or artificially manufactured rubber. Hydrocarbon-based petroleum compounds act as the precursor for their production. When stressed, synthetic rubber distorts and then returns to its original shape. This feature is highly useful in the production of high-grip tires with strong traction. Synthetic rubber also has unique features, especially in terms of lifespan and intrinsic resistance.
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Carbon Black and Metal as a Raw Material for Tire Industry
Carbon black is a substance that is created by the partial burning of hydrocarbons, lignite, or fossil fuels. It is black in appearance and is responsible for the darkened color of tires. The addition of carbon black to the rubber mix increases tire abrasion resistance tremendously. Metals paired with the creation of a covering provide a robust physiochemical connection between the elastomer and steel. Metal reinforcements provide hardness and stiffness to the tire.
Textile and Sulfur Reinforcements in Tires
Textile has long been used to reinforce tires. Fabric reinforcing is now used extensively in high-performance, high-speed tires to improve convenience and longevity. Along with this, the vulcanization of tires is achieved by sulfur. Vulcanization is a chemical procedure that improves the flexibility, tensile strength, and viscosity of rubber.
Latest Research and Future Trends
Researchers from China recently have published their research on a novel self-recyclable polyurethane in the journal Nano Energy, which would not only be helpful in the sustainable development of tires but also increase their efficiency and performance during demanding situations. To tackle the obstacles experienced during the production of pneumatic tires, a polyurethane elastomer substance with excellent heat tolerance and self-repairability was developed.
The material maximized vehicle tire comfort quality, high wet-skid resistance, and high fatigue strength, as well as self-repairability and intense temperatures resistance, according to the results. This material's overall performance was comparable to that of conventional eco-friendly tires.
Furthermore, the material may be reprocessed multiple times. This research is anticipated to tackle existing rubber tire challenges and give unique ideas for developing upcoming high-performance tire material. The current research trend is focused on eco-friendly tire development, sustainable raw materials, and recycling of tire materials. These steps are being taken to reduce emissions and focus on greener tire materials.
References and Further Reading
Chemistry School, 2022. Tire Manufacturing Process, Raw Materials, Production. [Online]
Available at: https://www.chemistryscl.com/industrial/tire-manufacturing-process-raw-materials/index.php
Hu, Shikai, et al. 2022. Self-Repairable, Recyclable and Heat-Resistant Polyurethane for High-Performance Automobile Tires. Nano Energy. 107012. Available at: https://doi.org/10.1016/j.nanoen.2022.107012
Made How, 2022. Tire. [Online]
Available at: http://www.madehow.com/Volume-1/Tire.html
Antony, Albin, et al. 2021. SUSTAINABLE MATERIALS IN TIRE INDUSTRY: A COMPARATIVE STUDY OF EUROPE AND ASIAN MARKETS. Global journal of Business and Integral Security. Available at: https://gbis.ch/index.php/gbis/article/view/33
Michelin, 2022. An Unknown Object- The Tire Material [Online]
Available at: https://thetiredigest.michelin.com/an-unknown-object-the-tire-materials#nav
Cattinari, Gianluca, et al. 2021. Nanostructural Evolution of Natural Rubber/Silica Nanoparticle Coagulation from Binary Colloidal Suspensions to Composites: Implications for Tire Materials. ACS Applied Nano Materials 4(7). 722-6733. Available at: https://doi.org/10.1021/acsanm.1c00725
Sabhadiya, J., 2022. 7 Different Types Of Tires And Their Various Uses. [Online]
Available at: https://www.engineeringchoice.com/types-of-tires/
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