There are significant differences between APET membranes and PETG membranes in their chemical structure, performance characteristics and application fields. The following is a detailed analysis of the differences:
1. Chemical structure:
-APET membrane: full name Amorphous Polyethylene Terephthalate, Chinese name is non-crystalline polyethylene terephthalate. It is a plastic material and belongs to the copolymer of PET.
-PETG membrane: a transparent, noncrystalline copolyester composed of ethylene glycol, terephthalic acid and malate.It is a thermoplastic polyester material.
2. Performance features:
-APET membrane:
-Light weight: APET is lower at about 1.33 than PVC, which gives it an advantage in some applications.
-High strength: The film strength of APET is more than 20% higher than PVC, which is better in low temperature impact resistance, and can withstand-40℃ without cracking.
-Good folding resistance: no self-crack cracks like PVC, more suitable for surface decoration such as documents.
-High transparency: better luster than PVC, more suitable for fine packaging.
-PETG membrane:
-Excellent transparency: stylish appearance, delicate and smooth feel, such as baby skin and silk.
-Durability: impact resistance, ultraviolet light resistance, can remain intact for a long time in a high intensity, high pressure environment for a long time.
-Environmental protection: non-toxic, pollution-free, is a recyclable environmental protection material.
3. Application areas:
-APET film: widely used in cosmetics, food, electronics, toys, printing and other industries packaging, such as a variety of high-grade plastic packaging, folding boxes, rubber cylinders, window pieces, etc.
-PETG membrane: In addition to the above packaging fields, PETG film is also widely used in construction home decoration, medical treatment, industry, daily necessities and other fields, such as wooden doors, cabinets, wall panels and other home decoration.
In conclusion, APET membrane and PETG membrane have different emphasis in chemical structure, performance characteristics and application fields. APET film has its unique advantages in the packaging industry with its light weight, high strength and folding resistance, while PETG film is widely used in building home decoration, medical treatment and other fields with its excellent transparency, durability and environmental protection.
