articleAdvanced MaterialsSep 6, 2022Closed access

Hydro/Organo/Ionogels: “Controllable” Electromagnetic Wave Absorbers

ZZZehao ZhaoLZLimin ZhangHWHongjing Wu

Northwestern Polytechnical University

PubMed
Indexed incrossrefpubmed

Abstract

Demand for electromagnetic wave (EMW) absorbers continues to increase with technological advances in wearable electronics and military applications. In this study, a new strategy to overcome the drawbacks of current absorbers by employing the co-contribution of functional polymer frameworks and liquids with strong EMW absorption properties is proposed. Strongly polar water, dimethyl sulfoxide/water mixtures, and highly conductive 1-ethyl-3-methylimidazolium ethyl sulfate ([EMI][ES]) are immobilized in dielectrically inert polymer networks to form different classes of gels (hydrogels, organogels, and ionogels). These gels demonstrate a high correlation between their dielectric properties and polarity/ionic…

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257
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14.74
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100%
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52
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Authors

3

Topics & keywords

Topics
Keywords
  • Materials science
  • Electromagnetic shielding
  • Self-healing hydrogels
  • Ionic liquid
  • Absorption (acoustics)
  • Dielectric
  • Chemical engineering
  • Polymer
UN Sustainable Development Goals
  • Affordable and clean energy
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