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VACUUM ›› 2023, Vol. 60 ›› Issue (4): 18-23.doi: 10.13385/j.cnki.vacuum.2023.04.04

• Thin Film • Previous Articles     Next Articles

Preparation and Properties of Functional PET Composite Films

REN Dong-xue, SUN Xiao-jie, CHEN Lan-lan   

  1. National Institute of Clean-and-Low-Carbon Energy, Beijing 102209, China
  • Received:2022-08-10 Online:2023-07-25 Published:2023-07-26

Abstract: A layer of organic film was coated on the PET substrate with polyacrylate polyol resin, and an inorganic film was deposited on the organic coating by plasma enhanced atomic layer deposition(PE-ALD)to obtain functional PET composite film. The effects of organic coating thickness, PE-ALD coating type and PE-ALD coating temperature on the water vapor barrier property and light transmission property of PET composite films were investigated by water vapor transmittance tester and ultraviolet-visible-near-infrared spectrophotometer. The results show that the thickness of polyacrylate polyol organic coating film has little effect on the water vapor barrier property and light transmittance of the PET composite film.The Al2O3 film deposited by PE-ALD can greatly improve the water vapor barrier property of the PET composite film, and the water vapor barrier property is the best when the PE-ALD coating temperature is 100℃,reaching 0.17g·m-2·d-1.

Key words: PET composite film, PE-ALD, water vapor barrier property, light transmittance

CLC Number:  TB43

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