| 摘要 |
PURPOSE:To obtain carbon yarn for reinforcing thermoplastic resins, capable of extremely improving mechanical strength by filling the carbon yarn into a highly heat-resistant engineering resin by coating the surface of carbon yarn with a polyether imide resin and heat-treating at a specific temperature. CONSTITUTION:The surface of carbon yarn is coated with a polyether imide resin (e.g. polyether imide resin shown by the formula) and then the coated carbon yarn is heat-treated at 300-400 deg.C, preferably 340-380 deg.C for 5-15 to give the objective yarn. |
