| 摘要 |
Polyamide moulding material containing 30-70 wt% thermoplastic polyamide, 2-20 wt% phosphinate and/or diphosphinate salt, 2-20 wt% nitrogen-containing synergist or phosphorus/nitrogen fire retardant and 0-5 wt% zinc compound(s), also contains 5-60 wt% fibrous reinforcing material and 2-30 wt% filler. Polyamide-based moulding materials (PAMM) comprises: (A) 30-70 wt% thermoplastic polyamide; (B) 2-20 wt% of a phosphinate salt of formula (I) and/or a diphosphinate salt (II) and/or their polymers; (C) 2-20 wt% nitrogen-containing synergist or phosphorus/nitrogen fire retardant; (D) 5-60 wt% fibrous reinforcing material; (E) 2-30 wt% filler; (F) 0-5 wt% organic and/or inorganic zinc compound(s); and (G) 0-5 wt% conventional additives and processing aids. R1>, R2>1-6C alkyl (linear or branched) and/or aryl; R3>1-10C alkylene, or 6-10C arylene, alkylarylene or arylalkylene; M : Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K or a protonated nitrogen base; m, n, x : 1-4 An independent claim is included for a method for the production of PAMM in a twin screw extruder, by adding components (A), (B), (C) and optionally (E) and (F) via the main inlet or a side inlet and adding component (D) from a separate side inlet. [Image] [Image]. |
