Durable and transparent intrinsically anti-triboelectric coatings

Area of Science:

• Materials Science
• Surface Chemistry
• Tribology

Background:

• Contact electrification causes electrostatic charge accumulation, challenging natural and engineered systems like displays.
• Existing anti-static coatings face limitations due to trade-offs between optical transparency, mechanical durability, and anti-static effectiveness.

Purpose of the Study:

• To develop a durable, transparent anti-triboelectric material that suppresses electrostatic charge generation.
• To overcome the inherent limitations of current anti-static coatings by molecularly engineering a novel hybrid network.

Main Methods:

• Chemically crosslinking an electron-donating aminopropyl oligomeric silsesquioxane with an electron-withdrawing trifluoropropyl-rich component.
• Fabricating a highly crosslinked organic-inorganic hybrid network with tunable surface potential.
• Applying the coating to diverse substrates and evaluating its anti-static, mechanical, optical, and folding properties.

Main Results:

• The developed coating effectively suppresses contact electrification and charge generation.
• The material demonstrates exceptional durability, withstanding over 16,000 steel wool abrasion cycles without damage.
• The coating maintains high transparency (>91%), anti-smudge performance, and foldability (1 mm bending radius).

Conclusions:

• This molecularly tailored strategy successfully creates a versatile anti-triboelectric coating platform.
• The material overcomes the critical trade-off between optical clarity, wear resistance, and static suppression.
• The developed coating offers a promising solution for applications requiring robust static control and optical performance.