| 摘要 |
Heterophasic polypropylene composition comprising a propylene homo- or random copolymer matrix phase (A), and an ethylene-propylene copolymer rubber phase (B) dispersed within the matrix phase, the heterophasic polypropylene composition including a fraction soluble in pxylene at 25°C (XCS fraction) which is present in the resin in an amount of 4 to 14 wt.-%, and a fraction insoluble in p-xylene at 25 °C (XCU fraction) which is present in the resin in an amount of 86 to 96 wt.-%, wherein the heterophasic polypropylene composition has an MFR2, determined according to ISO 1133 at 230 °C and under a load of 2.16 kg, of 4.0 to 8.0 g/10 min; and wherein the heterophasic polypropylene composition has a flexural modulus higher than 1500 MPa measured on an injection moulded specimen with the dimension 80x10x4 mm3 according to ISO 178; and wherein the heterophasic polypropylene composition has a content of monomer units derived from ethylene of 2.0 to 7.0 wt.-%. |
