Composite material containing wood-based fibers and having high impact strength

4:

• The composite material according to claim 1, having
• a tensile modulus, determined according to ISO 527-1A, of at least 1350 MPa;
• and
• a Charpy Notched impact strength at 23° C., determined according to ISO 179 1eA, of at least 7.0 kJ/m2.

5:

• The composite material according to claim 1, comprising
• (a) from 28.0 to 52.0 wt. %, of the first heterophasic propylene-ethylene copolymer (HECO1),
• (b) from 15.0 to 28.0 wt. %, of the second heterophasic propylene-ethylene copolymer (HECO2),
• (c) from 6.0 to 13.0 wt. %, of the ethylene-based elastomer,
• (d) from 8.0 to 28.0 wt. %, of the wood-based fibers,
• (e) from 1.0 to 5.0 wt. %, of the compatibilizer,
• (f) from 0.1 to 5.0 wt. %, of the additives,
• (g) from 1.0 to 15.0 wt. %, of the high density polyethylene,
• wherein the weight amounts are defined relative to the total weight of the composite material, and optionally wherein the weight amounts add up to at least 98.0 wt. %.

6:

• The composite material according to claim 1, the first heterophasic propylene-ethylene copolymer (HECO1) having one or both of the following characteristics:
• a soluble fraction (SF) content, determined according to CRYSTEX QC analysis, in the range from 6.0 to 22.0 wt. %, relative to the total weight of the first heterophasic propylene-ethylene copolymer (HECO1);
• and
• an intrinsic viscosity, determined according to DIN ISO 1628/1, of the soluble fraction content (iV(SF)), according to CRYSTEX QC analysis, in the range from 1.5 to 3.5 dL/g.

7:

• The composite material according to claim 1, the first heterophasic propylene-ethylene copolymer (HECO1) having at least one the following characteristics:
• an ethylene content (C2(total)), determined by FT-IR spectroscopy calibrated by quantitative 13C-NMR spectroscopy, in the range from 2.0 to 14.0 wt. %, relative to the total weight of the first heterophasic propylene-ethylene copolymer (HECO1);
• a soluble fraction (SF) having an ethylene content (C2(SF)), determined by FT-IR spectroscopy calibrated by quantitative 13C-NMR spectroscopy, in the range from 30.0 to 50.0 wt. %, relative to the total weight of the soluble fraction (SF) of the first heterophasic propylene-ethylene copolymer (HECO1);
• and
• a crystalline fraction (CF) having an ethylene content (C2(CF)) determined by FT-IR spectroscopy calibrated by quantitative 13C-NMR spectroscopy, of less than 5.0 wt. %, relative to the total weight of the crystalline fraction (CF) of the first heterophasic propylene-ethylene copolymer (HECO1).

8:

• The composite material according to claim 1, the second heterophasic propylene-ethylene copolymer (HECO2) having one or both of the following characteristics:
• a melt flow rate (MFR2), determined according to ISO 1133 at 230° C. and 2.16 kg, in the range from 4 to 25 g/10 min;
• and
• an intrinsic viscosity, determined according to DIN ISO 1628/1, of the soluble fraction content (iV(SF)), according to CRYSTEX QC analysis, in the range from 2.0 to 7.0 dL/g.

9:

• The composite material according to claim 1, the second heterophasic propylene-ethylene copolymer (HECO2) having at least one of the following characteristics:
• a soluble fraction (SF), determined according to CRYSTEX QC analysis, in the range from 18.0 to 38.0 wt. %, relative to the total weight of the second heterophasic propylene-ethylene copolymer (HECO2);
• a soluble fraction (SF) having an ethylene content (C2(SF)) determined by FT-IR spectroscopy calibrated by quantitative 13C-NMR spectroscopy, in the range from 20.0 to 50.0 wt. %, relative to the total weight of the soluble fraction (SF) of the second heterophasic propylene-ethylene copolymer (HECO2);
• and
• a ratio of the intrinsic viscosity of the soluble fraction content (iV(SF)), according to CRYSTEX QC analysis, to the intrinsic viscosity of the crystalline fraction (iV(CF)), according to CRYSTEX QC analysis, in the range of from 1.2 to 6.0, the intrinsic viscosity being determined according to DIN ISO 1628/1.

16:

• The composite material according to claim 1, having:
• a tensile modulus, determined according to ISO 527-1A, of at least 1550 MPa;
• and
• a Charpy Notched impact strength at 23° C., determined according to ISO 179 1 eA, of at least 11.5 kJ/m2.