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Conduct disorder is a complex mental health diagnosis characterized by a repetitive and persistent pattern of behavior that violates societal norms, the rights of others, or age-appropriate rules. The diagnostic criteria for conduct disorder require the presence of at least three problematic behaviors within the past 12 months, with at least one occurring in the past six months. These behaviors are grouped into four categories: aggression toward people and animals; destruction of property;...
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Highly Stretchable and Conductive Superhydrophobic Coating for Flexible Electronics.

Xiaojing Su1, Hongqiang Li1,2, Xuejun Lai1,2

  • 1College of Materials Science and Engineering , South China University of Technology , Guangzhou 510640 , China.

ACS Applied Materials & Interfaces
|March 7, 2018
PubMed
Summary

Researchers developed a durable superhydrophobic coating with excellent stretchability and conductivity for wearable electronics. This new material maintains its properties under various conditions, enabling flexible electronics in harsh environments.

Keywords:
conductivitydurabilityflexible electronicsstretchabilitysuperhydrophobic coating

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Surface Chemistry

Background:

  • Superhydrophobic materials are crucial for applications like wearable sensors and corrosion resistance.
  • Integrating stretchability and conductivity in these materials remains a significant challenge.

Purpose of the Study:

  • To develop a facile method for fabricating a superhydrophobic coating with enhanced stretchability and electrical conductivity.
  • To explore the potential of this coating in flexible electronic applications.

Main Methods:

  • A spraying method was employed using 1-octadecanethiol-modified silver nanoparticles (M-AgNPs) and polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene (SEBS) on a natural rubber (NR) substrate.
  • Hierarchical rough architecture was constructed by embedding M-AgNPs in SEBS and utilizing a prestretched NR substrate.

Main Results:

  • The fabricated coating achieved superhydrophobicity (water contact angle > 160°) and high conductivity (resistance ~10 Ω).
  • The material maintained superhydrophobicity and demonstrated sensitive, stable responses to stretching and bending.
  • Excellent durability was observed against heat, acid/alkali, and mechanical stresses.

Conclusions:

  • The study presents a novel approach for creating multifunctional superhydrophobic materials with superior stretchability and conductivity.
  • This technology offers a promising solution for flexible electronics operating in demanding wet or corrosive conditions.