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Mechanical properties of graphene oxide-polyacrylamide composites before and after swelling in water

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Date
2018
Author
Evingür, Gülşen Akin
Pekcan, Önder
Abstract
Polyacrylamide (PAAm) hydrogels have been proposed for use as promising biomaterials in biomedical and tissue engineering but their poor mechanical and water-retention properties have hindered their development. Graphene oxide (GO) an excellent nanofiller was added to PAAm to produce mechanically strong GO-PAAm composites. The free radical crosslinking copolymerization method was used with GO content varying in the range between 5 and 50 A mu l of GO. The mechanical properties of the GO-PAAm composites are measured by compressive test revealing a decrease in the shear modulus and toughness of the composites above 8 A mu l of GO by increasing GO content.

Issue

4

Volume

75

Pages

1431-1439

URI

https://hdl.handle.net/20.500.12469/1148

Collections

  • Araştırma Çıktıları / Scopus [1565]
  • Araştırma Çıktıları / WOS [1518]
  • Biyoinformatik ve Genetik / Bioinformatics and Genetics [220]

Keywords

Graphene oxide
Elasticity
Toughness
Swelling
Acrylamide

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