As a common material in our daily life, what is the difference between PET PETG?

1. Different definitions

PETG， It is a transparent, amorphous copolymer ester, PETG is commonly used to copolymerize monomer 1,4-cyclohexanedimethanol (CHDM), also known as polyethylene terephthalate 1,4-cyclohexanedimethanol. PET plastic is an abbreviation for mandatory terephthalic acid PET PETP. Polyethylene terephthalate plastics mainly include polyethylene terephthalate (PET), butyl terephthalate (PBT).

2. Different uses

PET is mainly used for packaging various beverage containers, such as Nongfu Spring for pure water bottles Coca Cola for beverage bottles. Of course, I think beauty conscious women should be familiar with PETG. Compared to PET, PETG has higher transparency, better chemical resistance, better oil resistance, better weather resistance (yellowing). Therefore, PETG has long been used for various daily necessities, such as cosmetics bottles, perfume bottles, medical packaging containers, etc.

3. Different characteristics

The molecular structure of PET plastic is highly symmetrical has a certain degree of crystal orientation ability, therefore it has high film-forming properties. PET plastic has good optical properties weather resistance, while amorphous PET plastic has good optical transparency.

PETG board is easy to produce products with complex shapes high stretch ratios. Unlike PC board impact modified acrylic, this type of sheet does require pre drying before hot forming processing. Compared with PC board acrylic, it has a shorter molding cycle, lower temperature, higher yield.