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Why is PETG more expensive than PET? What kind of makeup bottle should buy?

2021-01-05 H:40:20
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As a common material in our daily life, what's the difference between PET  PETG?

1. Different definitions

    PETG, it is a kind of transparent, an amorphous type copolyester, PETG commonly used for copolymerization monomer 1, 4 - cyclohexane two methanol (CHDM, Cylclohexylenedimethylene), called the polyethylene terephthalate - 1, 4 - cyclohexane 2 methyl ester.PET plastic is the abbreviation of Compulsory terephthalate, short for PET  PETP.Polyterephthalic acid plastics, which mainly include polyethylene terephthalate PET  butyl terephthalate PBT.


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2. Different uses

    PET is mainly used in the packaging of various beverage containers, such as nongfu Spring like pure water bottles, cola like beverage bottles.Of course, I think women who love beauty should be familiar with PETG.Compared with PET, PETG has higher transparency, better chemical resistance, better oil resistance,  better weathering (yellower) resistance. Therefore, PETG is used for all kinds of long-term daily commodities, such as cosmetic bottles, perfume bottles, pharmaceutical packaging containers  so on.


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3. Different characteristics

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

    PETG plates are easy to produce products with complex shapes  large tensile ratios., unlike PC board  impact-modified acrylic, this sheet does  need to be pre-dried before hot forming processing.Compared with PC board  acrylic, its molding cycle is short, low temperature, higher yield.

To sum up, PETG is a good choice when buying cosmetic bottles.

If you want to know more details, please contact us. Domestic PETG  PET stable suppliers are waiting for you ~


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