METHOD OF PREPARING POLYACRYLONITRILE-BASED PRECURSORS FOR CARBON FIBERS AND THE DEVICE

摘要

PURPOSE: A method for manufacturing polyacrylonitrile precursor fiber for carbon fiber and a device for the same are provided to improve the efficiency of reaction when polymerizing acrylonitrile (AN), methyl acrylate (MA), and itaconic acid (ITA) to prepare a dope solution. CONSTITUTION: A method for manufacturing polyacrylonitrile precursor fiber for carbon fiber comprises the steps of: supplying AN to be spread into a plane, spraying MA and ITA to the liquid AN to be polymerized, and applying vibration energy to a space where the AN, MA, and ITA are being polymerized in order to kept the polymerizing liquid flexible.