• DOI:10.1021/acsami.7b07711
• Corpus ID: 22681216

Universal Nature-Inspired Coatings for Preparing Noncharging Surfaces.

@article{Fang2017UniversalNC,
  title={Universal Nature-Inspired Coatings for Preparing Noncharging Surfaces.},
  author={Yan Fang and Spandhana Gonuguntla and Siowling Soh},
  journal={ACS applied materials \& interfaces},
  year={2017},
  volume={9 37},
  pages={
          32220-32226
        }
}

• Yan Fang, Spandhana Gonuguntla, S. Soh
• Published 5 September 2017
• Materials Science, Engineering
• ACS applied materials & interfaces

Static charge generated by contact electrification on surfaces can lead to many undesirable consequences such as a reduction in the efficiency of manufacturing processes, damage to equipment, and explosions. However, it is extremely challenging to avoid contact electrification because it is ubiquitous: almost all types of materials charge on contact. Here, we coated materials with naturally occurring polydopamine (PDA) and tannic acid (TA) for preparing noncharging surfaces. Importantly, these coatings are very versatile and can be coated on a wide range of materials, including metals, inorganic materials, semiconductors, and polymers. Once coated, the amount of charge generated was found to reduce dramatically at different humidities. The reduction in charge may be due to the radical-scavenging property of PDA and TA. This simple general approach is ideal for coating the vast variety of materials that need to resist charging by contact electrification.