Nano-silica, due to its extremely small particle size and high specific surface area, is recognized as a very effective additive in the production of ultra-lightweight rubber and tires. This material, by making changes in the rubber structure, significantly improves its mechanical properties, durability, and some other features.
Mechanism of Nano-Silica Function in Rubber
- Increased Surface Area: Nano-silica particles, due to their very small size, create a very large surface area in contact with rubber polymer molecules. This increased surface area strengthens intermolecular bonds and improves the mechanical properties of rubber.
- Reinforcing the Network Structure: Nano-silica creates a three-dimensional network within the rubber matrix, reinforcing its structure. This three-dimensional network increases the rubber’s resistance to tearing, abrasion, and fatigue.
- Reduced Porosity: Nano-silica, by filling microscopic voids in rubber, reduces porosity and increases its density. This improves resistance to the penetration of water, oil, and other chemicals.
- Improved Thermal Properties: Nano-silica helps to improve the thermal properties of rubber such as heat resistance and thermal insulation.
Properties and Applications of Rubber Containing Nano-Silica in Tires
- Increased Abrasion Resistance: Tires containing nano-silica have much higher abrasion resistance, resulting in a longer lifespan.
- Reduced Rolling Resistance: Nano-silica, by reducing internal tire friction, reduces rolling resistance and consequently reduces fuel consumption.
- Improved Adhesion: Nano-silica, by increasing the tire’s adhesion to the road surface, improves vehicle control and increases safety.
- Reduced Weight: Tires containing nano-silica are lighter, which reduces fuel consumption and improves vehicle acceleration.
- Heat Resistance: Tires containing nano-silica have better heat resistance and are less susceptible to heat damage.
Other Applications of Rubber Containing Nano-Silica
In addition to tires, rubber containing nano-silica is used in various industries such as the automotive industry (production of interior automotive parts), the sports industry (production of athletic shoes), the medical industry (production of surgical gloves), and the aerospace industry (production of aircraft parts).
In summary, nano-silica as a very efficient additive in the production of ultra-lightweight rubber and tires, improves the mechanical properties, durability, and other features of rubber. This material has a wide range of applications in various industries.