The main materials of butyl bicycle inner tubes include:
1. Butyl rubber:
This is the basic material of bicycle butyl tubes, which is polymerized by isobutylene and a small amount of isoprene. It has excellent air tightness, a tight molecular structure, and it is difficult for gas to penetrate. It can well maintain the gas pressure in the inner tube and reduce the frequency of inflation. At the same time, butyl rubber also has good heat resistance, aging resistance and flexibility resistance. It can maintain good performance under different environmental conditions and ensure the service life of the inner tube.
2. Reinforcement agent:
Carbon black: It is a commonly used reinforcement agent in butyl bicycle inner tubes. Carbon black can increase the strength, hardness and wear resistance of the inner tube, improve the tear resistance and tensile strength of the inner tube, and enable the inner tube to withstand greater pressure and friction.
Other fillers: In addition to carbon black, some other fillers are sometimes added, such as calcium carbonate, clay, etc. These fillers can reduce costs and improve the performance of the inner tube to a certain extent.
3. Softener:
The commonly used softener is paraffin oil. Paraffin oil can make the molecular chain of butyl rubber more flexible, reduce the Mooney viscosity of the rubber, improve the processing performance of the rubber, and make it easier to mix, extrude and mold. At the same time, paraffin oil can also increase the dispersion of other compounding agents in the rubber, making the performance of the inner tube more uniform.
4. Anti-aging agent:
Since the bicycle is affected by sunlight, oxygen, ozone and other factors during use, the inner tube is prone to aging, so it is necessary to add an antioxidant to delay the aging process. Anti-aging agents can inhibit the oxidation reaction of rubber molecules, improve the aging resistance of the inner tube, and extend its service life.
5. Accelerator:
Accelerators can accelerate the vulcanization speed of rubber, improve the vulcanization efficiency, and enable the inner tube to achieve a better vulcanization effect in a shorter time. Different accelerators can be used in combination to adjust the vulcanization speed and vulcanization degree of the inner tube to meet different production processes and performance requirements.
6. Sulfur:
Sulfur is the main cross-linking agent for rubber vulcanization. It can form a cross-linked structure between rubber molecules and improve the strength, hardness and elasticity of the inner tube. The amount of sulfur and the vulcanization conditions will affect the performance of the inner tube, so they need to be adjusted according to the specific formula and process requirements.
If you are interested in learning more about bicycle butyl tubes, please pay attention to www.ontrackcn.com and start an efficient journey. We look forward to working with you to provide the most suitable product solutions for your company.
