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The atmospheric pressure plasma has broad application prospects in the field of surface treatment of materials. This study utilizes atmospheric pressure plasma to treat polyurethane foam with different parameters, and the research shows that plasma discharge under various parameters can significantly improve the hydrophilicity of polyurethane materials. Untreated polyurethane foam has a water absorption of 0.3523 g ± 0.04, while plasma discharge in air at a treatment power of 33.03 W and treatment time of 40 s shows the best modification effect, with water absorption reaching 0.9942 g ± 0.13. The water absorption of polyurethane foam treated with plasma is significantly increased. XPS analysis of air plasma and argon plasma at different parameters before and after treatment of polyurethane shows a significant decrease in carbon content and a notable increase in oxygen content, while nitrogen content remains essentially unchanged. Fine spectrum analysis of polyurethane samples treated with air plasma discharge reveals that the enhancement of hydrophilicity is closely related to the increased presence of oxygen functional groups on the surface of polyurethane.

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Atmospheric Pressure Plasma on Polyurethane Hydrophilicity Improvement Process and Mechanism Research

  • 会议论文

  • 发表日期：

    2025年

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  • Licheng Zheng,
  • Jia Zhang,
  • Xuguang Yuan,
  • Jing Huang,
  • Qing Xu,
  • Beili Shu,
  • Jian Bao

摘要

The atmospheric pressure plasma has broad application prospects in the field of surface treatment of materials. This study utilizes atmospheric pressure plasma to treat polyurethane foam with different parameters, and the research shows that plasma discharge under various parameters can significantly improve the hydrophilicity of polyurethane materials. Untreated polyurethane foam has a water absorption of 0.3523 g ± 0.04, while plasma discharge in air at a treatment power of 33.03 W and treatment time of 40 s shows the best modification effect, with water absorption reaching 0.9942 g ± 0.13. The water absorption of polyurethane foam treated with plasma is significantly increased. XPS analysis of air plasma and argon plasma at different parameters before and after treatment of polyurethane shows a significant decrease in carbon content and a notable increase in oxygen content, while nitrogen content remains essentially unchanged. Fine spectrum analysis of polyurethane samples treated with air plasma discharge reveals that the enhancement of hydrophilicity is closely related to the increased presence of oxygen functional groups on the surface of polyurethane.