| 摘要 |
PURPOSE: To obtain a resin composition, comprising a carbon fiber for reinforcing a highly heat-resistant resin having the surface coated with an aromatic polyimide and/or an aromatic polyamic acid-based resin and the highly heat- resistant resin and suitable for moldings, excellent in mechanical properties and heat and chemical resistances. CONSTITUTION: This carbon fiber for reinforcing a highly heat-resistant resin is obtained by immersing a carbon fiber in a treating liquid prepared by dissolving an aromatic polyimide resin of formulas I and II (X in both the formulas I and II is formula III or IV; Y is one or more groups selected from formulas V, VI, etc.; R1 to R7 are each a 1-20C alkyl, a halogenated alkyl, H or a halogen) and/or an aromatic polyamic acid which is its precursor in N-methyl-2- pyrrolidone and drying the resultant fiber. The surface of the resultant fiber is coated with the resin. The highly heat-resistant resin composition is obtained by blending 5-100 pts.wt. resultant carbon fiber with 100 pts.wt. highly heat- resistant resin such as a polyether ether ketone having >=250 deg.C melting point and >=100 deg.C glass transition point. The resultant resin composition is molded into a prescribed shape to a afford electronic or automotive parts. |
