Acrylonitrile-based polymer solution manufacturing method and shear device, the method of manufacturing the same, and method of producing a carbon fiber of acrylonitrile fiber

摘要

can acrylonitrile uniformly and efficiently dissolving the polymer in a solvent, it is suppressed filter and the spinning nozzle clogging, production of acrylonitrile-based polymer solution which can be stably produced acrylonitrile-based polymer solution to provide a method. The polymer and mixture with the solvent, was supplied to the dispersion chamber of the shear device having a rotor which rotates in a cylinder and the cylinder, giving shearing force to the mixture by rotating the rotor under the following conditions, then, the resulting mixture method of manufacturing acrylonitrile polymer solution heated to obtain acrylonitrile-based polymer solution: W = (W ₁ -W ₂ ) / M 0.12 (kWh / kg). W ₁ , W ₂ , M is defined in the specification. Or, as W 1.60, it is also possible to not heat.