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Causes of bubbles in PET cosmetic plastic bottles

In the process of producing PET cosmetic plastic bottles, there are often bubbles in the bottle body. These bubbles will directly lead to the unqualified quality control. So what causes the bubbles? Let us analyze it from several aspects.1. Process factors:(1) The speed is too fast, so that the molt

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2022 03-14
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Chemical and physical properties of PETG

PETG is a transparent non-crystalline copolyester. As the CHDM in the copolymer increases, the melting point decreases, the glass transition temperature increases, and the crystallinity decreases, and finally an amorphous polymer is formed.Generally, the content of CHDM in PETG is 30%-40%. It has go

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2022 03-04

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Phone: 0086-18958324288
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Fax: 0086-0574-62888560

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