| 摘要 |
FIELD: production of fibers from polyacrylonitrile and its copolymers ; textile industry; production of industrial fibers. ^ SUBSTANCE: proposed method includes dissolving of polyacrylonitrile or its copolymer, molding polymer solution in form of fiber by passing it through spinneret, directing the solution in form of fiber to receiving member which is movable relative to spinneret in such way that fibers are not get in contact followed by gelling the solution, replacement of solvent in gel by polymer precipitating agent and removal of precipitating agent at subsequent extraction. Proposed method makes it possible to obtain fibers from polyacrylonitrile or its copolymers at molecular mass of 6*104 g/mole possessing rupture strength no less than 0.9 HPa and elasticity modulus not below 17 HPa. ^ EFFECT: enhanced efficiency. ^ 3 ex |
