| 摘要 |
PURPOSE:To obtain the subject lightweight product, having corrosion resistance, good in operating efficiency and suitable for building materials or civil engineering by impregnating fiber bundles with an epoxy resin in a specific proportion, semicuring the resin, twisting the resultant fiber-reinforced composite element wires and then thermosetting the resin. CONSTITUTION:Fiber bundles (generally fiber bundles of carbon fiber, aramid fiber or glass fiber) are initially impregnated with an epoxy resin so as to provide 40-70wt.% fiber content and then preferably semicured by a method for treatment at 80-120 deg.C for 1-5min. The resultant plural fiber-reinforced composite element wires having 1-5 mm diameter are subsequently twisted to afford a fiber-reinforced composite material, which is then heat-treated preferably at 150-180 deg.C for 2-5min and cured to provide the objective product. Furthermore, the diameter of the product is preferably 3-50mm from the viewpoint of use as a substitute wire rope in applications of civil engineering and construction. The number of twists of the rope is preferably 1-10 turns/m in aspects of shape retaining properties, etc. |
