The particle size distribution of plastic recycled rubber particles has a crucial impact on their application in many fields, and in-depth exploration of the relationship between the two is of great significance for optimizing their performance.
First, the particle size distribution directly affects the processing performance of plastic recycled rubber particles. A narrower particle size distribution means that the particle size is relatively uniform. In molding processes such as injection molding or extrusion, uniform particles can flow and fill the mold more stably in the equipment, reducing blockage or uneven distribution caused by particle size differences. For example, when producing rubber seals, recycled rubber particles with uniform particle size can make the product surface smoother and the size more precise, effectively improving the product's qualified rate. Particles with a wide particle size distribution may require higher pressure and temperature during processing to ensure the molding effect, increasing energy consumption and equipment wear.
Second, particle size is closely related to the physical properties of plastic recycled rubber particles. Particles with smaller particle sizes usually have a larger specific surface area, which allows them to interact better when mixed with other materials. When preparing rubber composites, small-sized recycled rubber particles can more effectively fill the voids of the matrix material and enhance the strength and toughness of the material. However, too small a particle size may also cause particle agglomeration and affect dispersibility. On the contrary, large-size particles can provide a certain skeleton support. In some applications with high requirements for wear resistance, such as sole materials, an appropriate proportion of large-size particles can improve the wear resistance and anti-skid performance of the product.
Furthermore, different application fields have specific requirements for the particle size distribution of plastic recycled rubber particles. In automobile tire manufacturing, in order to ensure the comfort, grip and wear resistance of the tire, it is necessary to accurately control the particle size distribution of recycled rubber particles so that their distribution in the tread rubber and carcass rubber is reasonable. In building sound insulation materials, recycled rubber particles with a relatively wide particle size distribution and containing a certain number of large-size particles can better form a porous structure and improve the sound absorption and sound insulation effects of the material.
Accurately controlling the particle size distribution of plastic recycled rubber particles and making adaptive adjustments according to different application scenarios can give full play to its advantages and expand its application range. By optimizing the particle size distribution through advanced screening and grading technologies and combining it with a deep understanding of application needs, it is expected to further enhance the application value of plastic recycled rubber particles in various industries, promote the development of the resource recycling industry and meet diverse market needs.
