PET薄膜是一种性能比较全面的薄膜。其透明性好，有光泽；具有良好的气密性；防潮性中等。PET薄膜的机械性能优良，其强韧性是所有热塑性塑料中最好的，抗张强度和抗冲击强度比一般薄膜高得多；且挺力好，尺寸稳定。PET薄膜还具有优良的耐热、耐寒性和良好的耐化学药品性和耐油性。 PET film is a kind of film with comprehensive properties. It has good transparency and luster, good air tightness and moderate moisture resistance. The mechanical properties of PET film are excellent, and its strength and toughness are the best among all thermoplastics. The tensile strength and impact strength of PET film are much higher than those of ordinary film, and its stiffness is good and its size is stable. PET film also has excellent heat resistance, cold resistance, chemical resistance and oil resistance.
