Radiation preparation of polyvinyl alcohol (PVA)-modified polyethylene glycol terephthalate (PET) films and their anti-fogging properties

WANG Wenrui; LIU Qi; HE Weirong; HAN Fei; LI Jihao; LI Linfan

doi:10.11889/j.1000-3436.2022-0127

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Radiation preparation of polyvinyl alcohol (PVA)-modified polyethylene glycol terephthalate (PET) films and their anti-fogging properties

RADIATION CHEMISTRY | 更新时间：2023-08-29

- Radiation preparation of polyvinyl alcohol (PVA)-modified polyethylene glycol terephthalate (PET) films and their anti-fogging properties
- Journal of Radiation Research and Radiation Processing Vol. 41, Issue 4, Pages: 40203(2023)
- 作者机构：
  
  1.中国科学院上海应用物理研究所上海 201800
  2.中国科学院大学北京 100049
  3.上海长沪新材料有限公司上海 201800
  4.中科武威新能源研究所武威 733000
- 作者简介：
  
  WANG Wenrui (male) was born in March 1996, and obtained his bachelor's degree from Hainan University in 2014. Now he is a doctoral student at Shanghai Institute of Applied Physics, Chinese Academy of Sciences, majoring in inorganic chemistry
  LI Linfan, professor, E-mail: lilinfan@sinap.ac.cn
- 基金信息：
  
  Gansu Natural Science Foundation Project(20JR10RA778;20JR10RA777)
- DOI：10.11889/j.1000-3436.2022-0127
  CLC：
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WANG Wenrui, LIU Qi, HE Weirong, et al. Radiation preparation of polyvinyl alcohol (PVA)-modified polyethylene glycol terephthalate (PET) films and their anti-fogging properties. [J]. Journal of Radiation Research and Radiation Processing 41(4):040203(2023)
DOI：

WANG Wenrui, LIU Qi, HE Weirong, et al. Radiation preparation of polyvinyl alcohol (PVA)-modified polyethylene glycol terephthalate (PET) films and their anti-fogging properties. [J]. Journal of Radiation Research and Radiation Processing 41(4):040203(2023) DOI： 10.11889/j.1000-3436.2022-0127.

摘要

利用γ射线辐射交联制备聚乙烯醇（PVA）改性的聚对苯二甲酸乙二醇酯（PET）薄膜，PVA分子在γ射线辐照后形成交联网络并负载在PET薄膜表面。傅里叶变换红外光谱（FTIR）和扫描电子显微镜（SEM）对样品的分析，证明了PVA成功地固定在PET表面。透光率测试表明，改性薄膜保持了良好的光学性能，透光率为89%。高温高湿和低温冷冻测试表明，样品在两种极端条件下能均保持良好的防雾性能。饱和吸水性测试表明，改性PET薄膜防雾化性能来源于PVA交联网络的吸水性，负载率12.43%的PET薄膜饱和吸水率达到50%。

Abstract

In this study, polyvinyl alcohol (PVA)-modified polyethylene glycol terephthalate (PET) films were prepared using γ-radiation crosslinking. The PVA molecules formed a crosslinking network after γ-irradiation and were loaded onto the surfaces of the PET films. The samples were analyzed by Fourier-transform infrared spectroscopy and scanning electron microscopy to demonstrate that the PVA was successfully anchored to the PET film surfaces. Light transmission tests revealed that the modified films maintained good optical properties with a light transmission of 89%. Whether under high-temperature, high-humidity, or low-temperature freezing conditions, the tests revealed that the samples exhibited good anti-fogging performance. Saturated water absorption tests revealed that the anti-fogging properties of the modified PET films were derived from the water absorption of the PVA crosslinking network, where the PET film under 12.43% loading showed a saturated water absorption of 50%.

关键词

辐射交联聚乙烯醇防雾化聚对苯二甲酸乙二醇酯

Keywords

Radiation crosslinkingPolyvinyl alcoholAnti-foggingPolyethylene glycol terephthalate (PET)

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