| 摘要 |
PURPOSE: A reinforced thermoplastic polyamide molding material, its preparation method and its use are provided to improve surface characteristic, flowability and heat size stability. CONSTITUTION: The reinforced thermoplastic polyamide molding material comprises the polyamide composition containing a semi-crystalline semi-aromatic polyamide and copolyamide with a melting point of 240 deg.C or more and a noncrystalline (co)polyamide. The polyamide composition comprises 92-85 wt% of a semi-crystalline (co)polyamide which contains 50-80 mol% of a terephthalate unit, 20-50 mol% of an isophthalic acid unit, and 100 mol% of at least one linear or branched aliphatic diamine unit of C4-C25; 55-100 mol% of an isophthalic acid unit, 0-45 mol% of a terephthalic acid unit, and 100 mol% of at least one linear or branched aliphatic or acyclic diamine unit of C4-C25; 25-70 wt% of a fibrous or particular filler or their mixture; 0-20 wt% of a rubber polymer; and optionally 0-30 wt% of an additive.
|
