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Self-Healing Ionic Liquid-Infused Polysiloxane Achieving Active and Passive Antifouling
Haoran Li1, Tianqi Ma2, Yanchao Wu2
1School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150006, China.
ACS Applied Materials & Interfaces
|January 5, 2026
Summary
This study introduces an ionic liquid-infused self-healing polysiloxane coating. This advanced material offers synergistic antifouling and self-healing properties for enhanced equipment protection.
Area of Science:
- Materials Science
- Surface Chemistry
- Nanotechnology
Background:
- Biofouling presents significant challenges to equipment functionality and longevity.
- Liquid-infused surfaces (LIS) are a promising research area but face limitations in self-healing and passive protection.
- Developing multifunctional coatings with integrated self-healing and antifouling capabilities is crucial.
Purpose of the Study:
- To develop an intelligent coating with combined self-healing and synergistic antifouling properties.
- To investigate the performance of an ionic liquid-infused self-healing polysiloxane (SH-L) coating.
- To provide a novel strategy for creating advanced antifouling solutions.
Main Methods:
- Synthesized an ionic liquid-infused self-healing polysiloxane (SH-L) by combining a weakly polar ionic liquid with a hydrogen-bonded polysiloxane matrix.
- Investigated the self-healing capability at room temperature and its enhancement after ionic liquid phase transition at 38 °C.
- Evaluated the antifouling performance, including fouling release, contact killing, and photocatalytic activity.
Main Results:
- The SH-L coating demonstrated self-healing properties at room temperature, with accelerated healing post-ionic liquid phase transition.
- The material exhibited effective antifouling through a liquid-like surface for fouling release.
- The coating provided dual-dimensional active protection via contact killing and photocatalytic antifouling mechanisms.
Conclusions:
- A novel intelligent coating (SH-L) integrating self-healing and synergistic antifouling has been successfully developed.
- The SH-L coating offers a multifunctional solution for combating biofouling on equipment.
- This research presents a new strategy for designing advanced, integrated antifouling coatings.
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