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<p>Durable superhydrophilic antifogging coatings were fabricated via a simple wet chemistry process, based on a silane modified polysorbate (Tween®40) and a silica sol. The effects of the content of the modified Tween®40 on the coatings’ hydrophilicity and antifogging properties were investigated. Through the hydrolysis and condensation reactions between the modified Tween®40 and the silica sol, the coatings form a robust 3D network structure and demonstrate excellent antifogging performance and high mechanical property. The optimal coating with 80&#xa0;wt.% M-T40 has a WCA of 1.7°. More importantly, it maintains its superhydrophilic and antifogging properties even after 500 cycles of abrasion as its WCA slightly rises from 1.7° to 3.5°. The coating exhibits excellent water resistance as well and can withstand up to 6 cycles of immersion-fogging test, demonstrating its considerable durability.</p>

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A long-term effective hybrid superhydrophilic antifogging coating with high durability based on a modified polysorbate and a silica sol

  • 期刊论文

  • 发表日期：

    2025年10月30日

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  • Chong Ke,
  • Chenhua Zhang,
  • Liquan Pan,
  • Yongdong Jiang

摘要

Durable superhydrophilic antifogging coatings were fabricated via a simple wet chemistry process, based on a silane modified polysorbate (Tween®40) and a silica sol. The effects of the content of the modified Tween®40 on the coatings’ hydrophilicity and antifogging properties were investigated. Through the hydrolysis and condensation reactions between the modified Tween®40 and the silica sol, the coatings form a robust 3D network structure and demonstrate excellent antifogging performance and high mechanical property. The optimal coating with 80 wt.% M-T40 has a WCA of 1.7°. More importantly, it maintains its superhydrophilic and antifogging properties even after 500 cycles of abrasion as its WCA slightly rises from 1.7° to 3.5°. The coating exhibits excellent water resistance as well and can withstand up to 6 cycles of immersion-fogging test, demonstrating its considerable durability.