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Top 10 film manufacturers in China

Established in 1980, Sanfame is a modern diversified holding group. Its core is polyester product. It operates in various industries including chemical materials, polyester film,

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Film-grade PET chip indicators

The successful production of film-grade PET chips depends on several key factors. We will show you the difference in the manufacturing process, viscosity, melting point,

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How to ensure quality of Polyester Chips

We follow the entire production cycle of our products, from supplier quality control, incoming material check, design check, production check, finished product check, storage check, EX-work check, transportation check, to after-sales service check, to ensure comprehensive quality control. We have established a traceability system.

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Water resistance of PET chips

So, how can we enhance the water resistance of PET chips? Research has shown that a. appropriately increasing the viscosity of PET chips and increasing the polymerization of PET macromolecules help enhance the mechanical performance of the final PET film in humid and hot environments. b. reducing the COOH content of PET chips and maintaining the mass fraction of DEG at a stable level of (1.0 ± 0.2) %, along with adding an anti-hydrolysis agent such as carbon diimide or polydicyclopentadiene at a mass fraction of 0.1% to 1.5%, contributes to improving the water resistance of PET films.

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Classification of PET Chips

The polyester raw material obtained from polymerization is generally processed into pelletized chips with dimensions of approximately 452 millimeters, commonly known as polyester chips.

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About the Author

Snow Wang

Snow Wang

Hi, i am Snow Wang, the founder of globalpolyester.com. I've been running a factory in China that makes BOPET and textile used polyester chips for 7 years now, and the purpose of this article is to share with you the knowledge related to polyester chips from a Chines supplier's perspective.

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