| 摘要 |
PURPOSE:To provide the title compsn. having excellent plate adhesion, heat resistance, mechanical strengths, rigidity and appearance, by blending polytetramethyleneadipamide having a specified relative viscosity with wollastonite powder and other inorg. powder. CONSTITUTION:35-90wt.% polytetramethyleneadipamide (A) having a relative viscosity of 1.5-6, pref. 2.5-5.0 (a soln. obtd. by dissolving 1g of the polymer in 100ml of sulfuric acid at 30 deg.C) (e.g., nylon 46) is blended with 5-65wt.% wollastonite (B) which is mainly composed of calcium metasilicate, contains not more than 4wt.% impurities and has a particle size of not larger than 10mu, pref. 0.2-5mu, 0-40wt.% inorg. filler (C) other than the component B (e.g., calcium titanate) and optionally, a polymer (e.g., PB), an antioxidant, a stabi lizer, a lubricant, etc. (D). The mixture is melt-kneaded at 300-340 deg.C to obtain the title compsn. The compsn. is molded. The surface of the molded product is roughened by etching and plated.
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