Preparation method of silicon carbide base polishing synthetic paper
A silicon carbide-based, synthetic paper technology, applied in polishing compositions containing abrasives, etc., can solve the problems of corrosive metal equipment, easy volatility, poor quality stability, etc., and achieves easy control of the production process, simple production process, and use. Ease of the process
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Embodiment 1
[0024] Weigh 24 kg of polyether polyurethane particles with a Shore hardness of 85A and 110 kg of N-N-dimethylformamide into the reactor, heat to 50°C and stir to completely dissolve the polyether polyurethane particles to obtain a polyurethane solution ; Add 24 kg of 400 mesh black silicon carbide powder, stir with a high-speed stirrer to obtain a solid-liquid mixture; after standing for 6 hours to defoam, coat the solid-liquid mixture on the release paper with a certain thickness, and then apply the release paper The liner is immersed in a 3% water-based polypropylene wax emulsion (temperature is 25°C); after the solid-liquid mixture is completely cured to form a film, put the liner and film together in a drying oven and dry at 50°C 2 h; by adjusting the thickness of the solid-liquid mixture coated on the release paper to control the total thickness of the film to 0.11mm; remove the release paper after the release paper and the film are cooled, and finally cut the film into a...
Embodiment 2
[0027] Weigh 16 kg of polyether polyurethane particles with a Shore hardness of 90A, 16 kg of polyester polyurethane particles with a Shore hardness of 90A, and 110 kg of N-N-dimethylacetamide into the reactor, and heat to 70 ℃ and stirred to completely dissolve the thermoplastic polyurethane particles to obtain a polyurethane solution; then add 45 kg of 600-mesh green silicon carbide powder and stir with a high-speed stirrer to obtain a solid-liquid mixture; after standing for 7 hours to defoam, the solid-liquid mixture Coat the release paper with a certain thickness, and then immerse the release paper in a water-based polypropylene wax emulsion with a mass percentage of 5% (temperature is 20°C); after the solid-liquid mixture is completely cured to form a film, the release paper The type paper and the film were placed in a drying oven and dried at 52°C for 1.5 h. The total thickness of the film is controlled to 0.15mm by adjusting the thickness of the solid-liquid mixture co...
Embodiment 3
[0030] Weigh 18 kg of polyether polyurethane particles with a Shore hardness of 92A, 7 kg of polyester polyurethane particles with a Shore hardness of 92A, and 110 kg of N-N-dimethylformamide into the reactor, and heat to 60 ℃ and stirred to completely dissolve the thermoplastic polyurethane particles to obtain a polyurethane solution; then add 42 kg of 800 mesh black silicon carbide powder, stir with a high-speed stirrer to obtain a solid-liquid mixture; after standing for 5 hours to defoam, the solid-liquid mixture Coat the release paper with a certain thickness, and then immerse the release paper in a water-based polypropylene wax emulsion with a mass percentage of 5% (temperature is 30°C); after the solid-liquid mixture is completely cured to form a film, the release paper The type paper and the film were put into a drying oven together and dried at 56°C for 1.5 h. The total thickness of the film is controlled to be 0.18mm by adjusting the thickness of the solid-liquid mix...
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