A Super-Adhesive 2D Diamond Smart Nanofluid with Self-Healing Properties and Multifunctional Applications

Junhao Wu ^1,2, Jiamin Yu ¹, Chengcheng Jiao ¹

⁰Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China.

Acs Applied Materials & Interfaces +

|

July 29, 2024

View abstract on PubMed

Summary

Researchers developed a smart nanofluid using fluorinated diamond nanosheets (F-DN) that offers self-healing and self-adhesion properties. This advanced material provides durable, responsive coatings for various demanding applications.

Area Of Science

Materials Science
Nanotechnology
Surface Chemistry

Background

Smart responsive materials offer reusability and cost reduction but struggle with damage repair, long-term stability, and extreme environments.
Existing materials often lack the ability to self-heal significant damage or perform reliably under harsh conditions.

Purpose Of The Study

To develop a novel smart nanofluid with self-healing and self-adhesion capabilities.
To explore the application of this nanofluid in creating advanced coatings for diverse industrial uses.

Main Methods

Combining 2D diamond nanosheets with organic fluorinated molecules to create the smart nanofluid (F-DN).
Utilizing drop-casting to apply F-DN coatings on steel and titanium alloy plates.
Testing coating properties including superhydrophobicity, oleophobicity, low friction, wear resistance, corrosion resistance, self-healing, and low-temperature performance.

Main Results

F-DN coatings exhibited superhydrophobic and oleophobic properties on steel.
Coatings on titanium alloys showed low friction and wear with PFPE additives.
Steel coatings demonstrated self-healing of 2 mm damage, -64 °C resistance, and 35-day salt spray corrosion resistance.
The nanofluid acted as a "coating glue" to repair other organic coatings.

Conclusions

The developed F-DN smart nanofluid provides versatile, self-healing, and robust coatings.
This material system offers significant potential for future smart responsive materials and advanced protective coatings.
The F-DN nanofluid addresses key limitations of traditional smart materials, enabling new applications.

Keywords:

2D diamond nanosheets corrosion resistance nanofluid self-adhesion self-healing