| 摘要 |
PURPOSE:To obtain the molded product with uniform wall thickness and sufficient high temperature rigidity by a method in which the polyamide resin with high numerical average molecular weight and the glass fiber with the average length and avrage diamter under specified condition are mixed at specified ratio, and said mixture is blow molded. CONSTITUTION:50-95pts.wt. polyamide resin (A) (e.g. nylon 6, etc.) with numerical average molecular weight equal to or more than 30,000, 50-5pts.wt. glass fiber (B) having 3-20mu average diameter (D), 150-60mu average length(L) and the ratio L/D of 8-100, and preferably halogenated copper or its derivative (C) is mixed into 0.01-0.2pts.wt. of total parts of components A and B and is blow molded. Thus, the objective molded product may be obtained. further ordinarily, as the fiber B is broken at molding, its suitable length (1,000-7,000mu) is preliminarily chosen. EFFECT:It is effectie at the manufacture for large hollow molded product. |
