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Radiation resistant metal decorated MWCNTs/PMMA nanocomposite films with enhanced thermomechanical properties
Author(s) -
Raza Ramsha,
Ali Saqib,
Ahmed Fiaz,
Abbas Syed Mustansar
Publication year - 2015
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.23020
Subject(s) - materials science , nanocomposite , thermal stability , composite material , carbon nanotube , polymer , glass transition , aqueous solution , chemical engineering , organic chemistry , chemistry , engineering
UV/O 3 radiation and chemical resistant nanocomposite films of functionalized/metal decorated multiwall carbon nanotubes (MWCNTs) with polymethylmethacrylate (PMMA) are synthesized. Silver nanoparticles are decorated on the surface of UV/O 3 functionalized MWCNTs by both reduction and in situ growth from AgNO 3 aqueous solution. Microscopic studies reflect the better dispersion of UV/O 3 functionalized/silver decorated MWCNTs in polymer matrix contributing in enhancement of thermal stability, thermomechanical strength, glass transition temperatures, and thermal conductivity of nanocomposites even at 0.25 wt% MWCNTs additions. The thermal stability of nanocomposite film (0.25 wt% loading), prepared by using a surfactant (Sodium dodecyl sulfate) is increased to about 27°C while the thermomechanical properties are raised up to 76% at 100°C. Thermal and thermomechanical behavior of pre‐ and post‐UV/O 3 irradiated nanocomposite films are compared with neat polymer. The results reveal that UV/O 3 functionalized MWCNTs can effectively disperse the radiation and have a dramatic reinforcement effect on the nature of the degradation of PMMA matrix. POLYM. COMPOS., 36:969–978, 2014. © 2014 Society of Plastics Engineers