Before understanding the differences between pet protective film and PE protective film, we should first understand their respective definitions, characteristics and uses.
Pet protective film is also known as high temperature resistant polyester film. It has excellent physical and chemical properties, dimensional stability, transparency and recyclability, and can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial film, packaging and decoration and other fields. It can be produced into mobile phone LCD protective film, LCD TV protective film, mobile phone keys, etc.
The mechanical properties of pet protective film are excellent, its strength and toughness are the best among all thermoplastics, and its tensile strength and impact strength are much higher than those of ordinary films;
PE protective film is a kind of packaging film with comprehensive performance. It has good transparency and luster; Good air tightness and aroma retention; The moisture resistance is medium, and the moisture permeability decreases at low temperature.
From the above understanding of some basic knowledge of PE protective film and pet protective film, we can clearly know the difference between them. In addition, PE is softer and pet is harder; When it is picked up and shaken, PE makes no noise, while pet makes noise; The tensile strength of PE is lower than that of pet; The temperature resistance of PE protective film is generally 60 degrees, while that of pet protective film can be 120 degrees or above. Therefore, different protective films should be selected for different products.
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