Super Fine Crumb Rubber Powder 100-Mesh
There is main method for producing crumb rubber powder, and the ideal process depends on the desired final product characteristics. Here’s a breakdown of crumb rubber powder, with a focus on the 100-mesh size:
- Ambient Mechanical Grinding:
This is the most common and cost-effective method for crumb rubber production.
Initial Size Reduction: Scrap tires are shredded into chips using large shredding machines.
Metal and Fiber Separation: The tire chips are fed into a granulator, which breaks them down further and separates out steel belts using magnets and fibers through air separation systems (shaking screens and wind sifters).
Grinding: The rubber crumb is then further ground in secondary mills or high-speed rotary mills to achieve the desired particle size. For a 100-mesh size, this grinding stage may involve multiple passes through the mills to ensure a consistent powder consistency.
Classification and Separation: The ground rubber powder is then passed through screens or air classifiers to separate it into different size fractions. Here, the 100 mesh sized particles are isolated.
Additional Considerations:
Deburring: Crumb rubber powder produced by mechanical grinding may have some irregular shaped particles. An additional deburring step using air classifiers or other methods might be used to achieve a more spherical powder shape, depending on the desired application.
Surface Treatment: In some cases, the crumb rubber powder may be treated with coupling agents or other chemicals to improve adhesion with other materials in its final use.
Technical Specifications:
Mesh Size: 100-Mesh
Particle Size: Approximately 150 microns (0.15 millimeters). This is because a 100 mesh screen has 100 openings per linear inch.
Fineness: Very fine powder
Other Specifications (may vary depending on supplier):
Moisture content: Typically, less than 0.2%
Ash content: Typically, less than 10%
Material: Recycled tire rubber (can be natural or synthetic rubber)
Uses:
Crumb rubber powder with a 100-mesh size is one of the finest grades available and due to its small particle size, it has a large surface area. This makes it ideal for applications where a high degree of adhesion or interaction with other materials is needed. Here are some common uses:
Rubberized coatings: Used as a filler in adhesives, sealants, and coatings to improve strength, flexibility, and impact resistance.
Composites: Can be blended with polymers or resins to create rubber composites for various applications such as flooring, mats, and molded products.
Asphalt modification: Used to improve the elasticity, fatigue resistance, and cracking resistance of asphalt pavements.
Molding: Can be used as a filler in rubber molding compounds to improve specific properties.
Other uses: Depending on the specific application, crumb rubber powder can also be used in:
- Artificial turf infill
- Noise reduction materials
- Blast media
- Specialty flooring products
Additional Points:
- Crumb rubber powder is an eco-friendly product as it utilizes recycled tire rubber.
- The specific properties of the crumb rubber powder can be tailored depending on the processing methods and additives used.
- When handling crumb rubber powder, it is important to follow safety guidelines due to potential dust inhalation hazards.