Production manner null of waterproof Characteristic fiber-reinforced thermosetting metaplasia resin make twist structure body for optical cable

摘要

PURPOSE:To prevent a phenomenon of water running. CONSTITUTION:A twisting structure body has a core strand installed in the center and 6 outer strands twisted around the out periphery of the core strand. These strands are constructed by multiple composite strands composed of a non-hardened state thermal hardening resin a2 which is hardened after being twisted, reinforcing fibers a1 impregnated with this thermal hardening resin a2 and a thermal plastic resin a3 for covering the outer periphery of the thermal hardening resin a2. In a space between the core strand and the outer peripheral strand, 6 water absorbing fibers a4 are arranged, and in a recess part between the outer peripheral strands, 6 water absorbing fibers a5 are arranged. An outer periphery covering layer a6 made of a thermal plastic resin is formed on the outermost periphery.