| 摘要 |
<p>A polypropylene film having excellent dimensional stability and heat resistance is provided. The polypropylene film is characterized by having a haze of not more than 6%, and a heat shrinkage rate of not more than 15% at 150°C. The polypropylene film is further characterized in that, when thermomechanical analysis (TMA) is performed at a rate of temperature rise of 5°C/minute and a load of 0.5 kg/mm2, thermal elongation (E) (%) in the machine direction (MD) satisfies formula (1) at a range of 120°C to 150°C. Formula (1): log(E) <= 0.0275T - 2.4839 (wherein T represents temperature (°C))</p> |
