| 摘要 |
PURPOSE:To remarkably improve the impregnating ability and wetting of resin for fiber and to hold advanced tensile strength, flexural strength and impact strength by previously heating fiber for reinforcement at the specified high temp. just before this fiber for reinforcement is impregnated with molten thermoplastic resin. CONSTITUTION:Fiber 1 for reinforcement is heated by a heater 2. While continuous fiber for reinforcement is pulled, this is impregnated with melt of thermoplastic resin and thereby fiber-reinforced resin composition is produced. In this case, before impregnation of molten resin, fiber for reinforcement is previously heated at high temp. This fiber held at high temp. is brought into contact with molten resin. When the melting temp. of thermoplastic resin utilized for impregnation is defined as T (unit is shown in deg.C), the heating temp. is shown in (T-100)-(T+200) deg.C. Fiber 1 for reinforcement heated at high temp. is impregnated with molten thermoplastic resin. A cross head die 3 is utilized and the fiber is impregnated with molten thermoplastic resin. |
