| 摘要 |
PURPOSE: A method for preparing a polyamide resin composition is provided, to improve the dispersibility and to inhibit the aggregation of an inorganic filler. CONSTITUTION: The method comprises the steps of coating the surface of an inorganic filler with an aminoalkylsilane-based compound; and adding 0.5-3 mol% of a weak acid per 1 mol of the inorganic filler to a polyamide resin and polymerizing the polyamide resin. Preferably the inorganic filler is at least one selected from the group consisting of silica, kaolin, talc, titanium oxide and aluminosilicate; and the weak acid is at least one selected from the group consisting of phosphoric acid, hypophosphoric acid, phosphorous acid, acetic acid, propionic acid, butyric acid, isophthalic acid, terephthalic acid, benzenesulfonic acid and trichloroacetic acid. |
