The process of processing waste rubber products into vulcanized rubber powder is more environmentally friendly. With the continuous improvement of rubber powder production technology and equipment, the fineness of rubber powder is getting higher and higher and the application range is wider and wider. High-fineness fine rubber powder and ultra-fine rubber powder can be used in rubber materials, building materials and rubber-plastic blending materials to improve the overall performance of materials and reduce production costs. In actual production, the role of high-fineness vulcanized rubber powder in different materials is not the same, and the usage and dosage are different.
1. Rubber material
Adding an appropriate amount of high-fineness vulcanized rubber powder to the rubber material can significantly improve the static performance and fatigue resistance of the rubber. The better the abrasion and flex resistance. A typical application of high-fineness tire rubber powder is tire tread rubber. In addition, after the EPDM rubber is filled with vulcanized rubber powder, it is modified by peroxide/sulfur combined with a vulcanization system and thermosetting phenolic resin. The smaller the particle size of the rubber powder, the better the performance of the vulcanized rubber.
At present, the common vulcanized rubber powders on the market include tire rubber powder, nitrile rubber powder, ethylene propylene rubber powder, latex powder and neoprene rubber powder. Different types of vulcanized rubber powder can be used in different rubber materials to reduce The dual role of cost and performance improvement.
2. Building materials
Adding an appropriate amount of high-fineness vulcaniz Rubber powder modified concrete, etc. In the case of the same amount of vulcanized rubber powder 2YLYY819, the higher the fineness of the rubber powder, the higher the strength of the cement mortar. In the preparation process of tire rubber powder modified asphalt, the finer the rubber powder, the easier it is to swell in the asphalt, and then increase the ductility and penetration of the asphalt.
In addition, high-fineness tire rubber powder can also be used in the production of building waterproof materials. Experiments show that after adding rubber powder to the asphalt waterproofing membrane, the flexibility of the asphalt will increase and the use temperature will be wider; in general, the covering oil of the waterproofing membrane made by modifying the asphalt with 80 mesh rubber powder The effect is better than 30 mesh rubber powder.
3. Rubber-plastic blending materials
Using high-fineness vulcanized rubber powder in rubber-plastic blending materials, the strength, wear resistance and elasticity of the blended materials are significantly improved. For example, vulcanized rubber powder can toughen and modify polypropylene, which has poor low-temperature impact strength and is easy to be brittle; adding rubber powder can improve the impact resistance of polystyrene materials; rubber powder/high-density polyethylene/ethylene-octene copolymer The thermoplastic elastomer has good aging resistance and reworkability, and can be recycled; etc.
High-fineness vulcanized rubber powder has a wide range of applications in rubber materials, building materials and rubber-plastic blending materials. In-depth study of the application characteristics of waste rubber powder in various materials can further expand the application range of vulcanized rubber powder and treat more waste Rubber, I have the opportunity to continue discussing related issues with you.
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