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US 9,803,065 B2Granted
Microwave shielding effectiveness based on polyvinyl alcohol/silver hybrid nanocomposites
AssigneeKing Abdulaziz University
InventorsAhmed A. Al-Ghamdi, Yusuf Al-Turki, Fahrettin Yakuphanoglu, Farid El-Tantawy
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Abstract
A composite material for electromagnetic interference shielding is provided. The composite material comprises a polymer matrix with metal nanoparticles dispersed within the matrix. Methods of characterizing the nanocomposites are provided and demonstrate commercially relevant mechanical and electrical properties, particularly an electromagnetic interference shielding effectiveness in the microwave frequency. An economical process for preparing the nanocomposites is also provided.
Claims12
A nanocomposite shielding material, comprising;
- a polyvinyl alcohol matrix,
- silver nanoplatelets dispersed in the matrix,
- wherein the nanocomposite shielding material absorbs electromagnetic radiation at a frequency of 1-12GHz, and
- wherein the silver nanoplatelets have a thickness of 4-8 nm and an average edge length of 2-8 μm.
1 more element
Dependencies are inferred from the claim text.