Method for manufacturing silicone rubber
A manufacturing method and technology of silicone rubber, applied in the manufacturing field of silicone rubber, can solve problems such as poor electromagnetic shielding ability of silicone rubber, and achieve the effects of reducing material consumption, simplifying production process, and reducing manufacturing and assembly costs
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Embodiment 1
[0021] Mix the silicone rubber matrix, cross-linking agent, conductive and magnetic medium on a double-roll mill for 0.5°C at a temperature of 90°C; mold the mixed composite material at 80°C and 9MPa, wherein the conductive The medium is silver-plated copper powder, and the magnetic medium is silver-plated nickel powder; the mass ratio of the silicone rubber matrix: crosslinking agent: conductive medium: magnetic medium is 4:1:100:80, and the silicone rubber matrix includes: hydroxyl Silicone rubber, vinyl silicone rubber, alkoxy silicone rubber, crosslinking agent includes: isocyanate, organic peroxide, aliphatic azo compound, silver-plated nickel powder particle size is 1μm, coating thickness is 1μm, silver-plated copper The particle size of the powder is 1 μm, and the coating thickness is 1 μm.
Embodiment 2
[0023] Mix the silicone rubber matrix, crosslinking agent, conductive and magnetic medium on a two-roll mill for 3 hours at a temperature of 150°C; mold the mixed composite material at 150°C and 20MPa, wherein the The conductive medium is silver-plated copper powder, and the magnetic medium is silver-plated nickel powder; the mass ratio of the silicone rubber matrix: crosslinking agent: conductive medium: magnetic medium is 4:10:400:200, and the silicone rubber matrix includes: Hydroxy silicone rubber, vinyl silicone rubber, alkoxy silicone rubber, crosslinking agent includes: isocyanate, organic peroxide, aliphatic azo compound, silver-plated nickel powder particle size is 6μm, coating thickness is 6μm, silver-plated The particle diameter of the copper powder was 12 μm, and the thickness of the plating layer was 7 μm.
Embodiment 3
[0025] Mix the silicone rubber matrix, crosslinking agent, conductive and magnetic medium on a two-roll mill for 1 hour at a temperature of 100°C; mold the mixed composite material at 130°C and 15MPa, wherein the The conductive medium is silver-plated copper powder, and the magnetic medium is silver-plated nickel powder; the mass ratio of the silicone rubber matrix: crosslinking agent: conductive medium: magnetic medium is 4:5:200:150, and the silicone rubber matrix includes: Hydroxy silicone rubber, vinyl silicone rubber, alkoxy silicone rubber, crosslinking agent includes: isocyanate, organic peroxide, aliphatic azo compound, silver-plated nickel powder particle size is 5μm, coating thickness is 4μm, silver-plated The particle diameter of the copper powder is 8 μm, and the thickness of the plating layer is 5 μm.
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Abstract
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