| 摘要 |
According to one aspect, the present invention relates to a low-density polyethylene having a melt index MFR2 of 2.5 to 10.0 g/10 min, a density of 910 to 935 kg/m3, and a dynamic viscosity eta0.05 at a shear rate of 0.05 rad/s and a dynamic viscosity eta300 at a shear rate of 300 rad/s which satisfy the following relationship: <?in-line-formulae description="In-line Formulae" end="lead"?>eta300<=108 Pa*s+0.0253*eta0.05.<?in-line-formulae description="In-line Formulae" end="tail"?> According to a second aspect, the present invention relates to a low-density polyethylene having a melt index MFR2 of 2.5 to 10.0 g/10 min, a density of 910 to 935 kg/m3, and a phase shift delta0.5 at a frequency of 0.5 rad/s and a phase shift delta300 at a frequency of 300 rad/s, which satisfy the following relationship: <?in-line-formulae description="In-line Formulae" end="lead"?>tan delta300>=0.45+0.164* tan delta0.5.<?in-line-formulae description="In-line Formulae" end="tail"?>
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