Preparation method of silicon rubber reinforced particles and reinforced rubber powder

• Main Author: TAN JINHE
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention belongs to the technical field of preparation of composite materials and rubber powder, and discloses a preparation method of silicone rubber reinforced particles and reinforced rubber powder. The preparation method of the silicone rubber reinforced particles and the reinforced rubber powder comprises the following steps: carrying out hydrosilylation reaction on hydrogen-containing silicone oil and aliphatic hydrocarbon containing at least two unsaturated groups to obtain a cross-linked polysiloxane elastomer solution, then adding silica sol, uniformly stirring and mixing, carrying out vacuum drying, crushing and sieving to obtain the silicone rubber reinforced particles. Waste tires are cleaned, diced, crushed, sieved and magnetically separated to obtain rubber powder, and then the rubber powder is mixed with silicone rubber reinforced particles to obtain the reinforced rubber powder. The regenerated rubber powder is reinforced by the specific silicone rubber reinforced particles, so that the m