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What are the usual methods for using rubber powder made by tire shredder?
The use of tire shredder to process used rubber into rubber powder is very dependent on the way it is used. At present, the processing of waste rubber into rubber powder, including fine rubber powder, is the dominant direction of reuse, and can use tire shredder. The production of fine rubber powder has been widely adopted in developed countries, with obvious economic and social benefits.
Compared with the production of recycled rubber, the production of fine rubber powder is simple, low energy consumption, low cost, chemical raw materials such as softeners and activators that can be desulfurized, and can partially replace raw rubber, so that the cost of the product is low, and there is no environmental protection. Contamination, in the incorporation of recycled materials, is greater than the amount of recycled rubber and has good mechanical properties.
Rubber powder has been widely used in developed countries, mainly used in rubber products, plastic products, modified asphalt and road paving.
Very promising is the preparation of thermoplastic elastomers from rubber powder and waste plastics.
The main production methods of rubber powder include normal temperature pulverization method, low temperature pulverization method, wet method or solution method.
Among them, the use of tire shredder at room temperature pulverization is the main method for the production of rubber powder in the world. Industrially produced rubber powders are often classified into coarse rubber powder, fine rubber powder, fine rubber powder and ultrafine rubber powder by particle size. There is still a basis for improving the performance of the rubber powder.
Surface modified rubber powder produced for different purposes. Different varieties of rubber powder are suitable for different industrial uses. For example, the paving materials mainly use coarse rubber powder, the asphalt modified mainly uses fine rubber powder, while the rubber and plastic mainly use fine rubber powder, and the coating uses ultrafine rubber powder.