Rubber powder and preparation method thereof

• Main Author: TAN JINHE
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The invention provides rubber powder and a preparation method thereof, and relates to the field of waste resource utilization, and the rubber powder is prepared from the following raw materials: (1) crushing waste tires into coarse powder to obtain rubber blocks, sieving the rubber blocks, and carrying out magnetic separation to obtain rubber particles; (2) adding the rubber particles obtained in the step (1) into a solution A, dipping and grinding to obtain a coarse grinding material; (3) adding a solution B into the coarse grinding material obtained in the step (2) for dipping, drying, heating and grinding to obtain a fine grinding material; and (4) sieving and drying the finely ground material obtained in the step (3) to obtain the rubber powder. By improving the processing technology and the added solution raw materials, the finally prepared rubber powder is small in particle size and can be widely applied to production and processing of various products, the products obtained after sheet pressing have go