Preparation method and production equipment of acrylonitrile-based carbon fiber spinning solution
A technology of acrylonitrile-based carbon fiber and production equipment, which is applied in the direction of fiber chemical characteristics, textiles and papermaking, etc., to improve the quality of fluid transportation, improve uniformity, and realize the effect of continuous industrial production
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Embodiment 1
[0021] Embodiment 1: Weigh 2000g dimethyl sulfoxide and pour it into the feed tank, weigh 646.8g acrylonitrile, 3.3g azobisisobutyronitrile, and 6.6g itaconic acid, pour them into the feed tank successively, and stir After the dissolution is complete, the solution and the air in the tank are removed by bubbling argon for 20 minutes. Argon gas was passed through the tubular reactor for 20 minutes to remove air from the pipeline, while hot water at 50°C was passed through the jacket. Add a feeding tank to the middle of the tubular reactor, pour 340 g of dimethyl sulfoxide and 6.6 g of itaconic acid into it, stir to dissolve it completely and ventilate it with argon. Use a metering pump to transport the polymerization stock solution into the pipeline so that the flow rate is 0.5cm / s. After the feeding is completed, open the loop valve to circulate the material in the pipeline. After the temperature of the material rises to the reaction temperature, the metering pump in the middl...
Embodiment 2
[0022] Example 2: Weigh 2100g of dimethyl sulfoxide and pour it into the feed tank, weigh 582g of acrylonitrile, 4.8g of azobisisobutyronitrile, 6g of itaconic acid and 6g of acrylamide, and pour them into the feed tank in turn After stirring and dissolving completely, blow argon for 20 minutes to remove the solution and the air in the tank. Argon gas was passed through the tubular reactor for 20 minutes to remove air from the pipeline, while hot water at 55°C was passed through the jacket. Add a feeding tank to the middle of the tubular reactor, pour 300g of dimethyl sulfoxide, 3g of itaconic acid and 3g of methyl acrylate, stir to make them completely dissolve and ventilate with argon. Use a metering pump to transport the polymerization stock solution into the pipeline so that the flow rate is 0.4cm / s. After the feeding is completed, open the loop valve to circulate the material in the pipeline. After the material temperature rises to the reaction temperature, the central m...
Embodiment 3
[0023] Example 3: Weigh 2100g of dimethyl sulfoxide and pour it into the feed tank, weigh 640.2g of acrylonitrile, 4.62g of azobisisobutyronitrile, 1.76g of itaconic acid and 3.52g of acrylamide, and pour them into the In the material tank, after stirring and dissolving completely, blow argon for 20 minutes to remove the solution and the air in the tank. Argon gas was passed through the tubular reactor for 20 minutes to remove air from the pipeline, while hot water at 50°C was passed through the jacket. Add a feeding tank to the middle of the tubular reactor, pour 240g of dimethyl sulfoxide, 2.64g of itaconic acid and 5.28g of acrylamide, stir to dissolve them completely, and ventilate with argon. Use a metering pump to transport the polymerization stock solution into the pipeline so that the flow rate is 0.4cm / s. After the feeding is completed, open the loop valve to circulate the material in the pipeline. After the temperature of the material rises to the reaction temperatu...
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