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Physicomechanical, dynamic mechanical, and morphological properties of Polyurethane/NCC/AgNP nanocomposites and their application in removal of heavy metals from wastewater
Author(s) -
Pashaei Shahryar,
MohammadiAghdam Sarvin,
Hosseinzadeh Soleyman
Publication year - 2019
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.25261
Subject(s) - adsorption , nanocomposite , materials science , silver nanoparticle , ultimate tensile strength , chemical engineering , polyurethane , dynamic mechanical analysis , nuclear chemistry , nanoparticle , transmission electron microscopy , polymerization , cellulose , composite material , polymer , chemistry , nanotechnology , organic chemistry , engineering
Silver nanoparticles (AgNPs) were rapidly synthesized using sugar beet leaf extract, and the formation of nanoparticles was observed within 3 h. AgNPs uniformly were reacted onto the surface of nanocrystal cellulose (NCC) via complexation leading to NCC/AgNPs, (NCC/Ag) nanohybrids with varying concentration of AgNPs (0, 1, 4, 8, and 10%) along with 2 wt% of NCC. Polyurethane (PU) and PU/NCC/AgNPs were synthesized via in situ polymerization by varying the concentration of AgNPs (0, 1, 4, 8, and 10%) along with 2 wt% of NCC. The results recorded from transmission electron microscopy and X‐ray diffraction support the biosynthesis and characterization of AgNPs. The effects of NCC/AgNP content on the physicomechanical properties involving density, tensile behavior, and surface hardness of the nanocomposites have been measured. The effects of the NCC/AgNP content on the viscoelastic properties of PU were investigated using dynamic mechanical analysis (DMA). From DMA analysis, it has been noted that the incorporation of NCC/AgNPs leads to a change in T g . The PU and PU/NCC/AgNP nanocomposites were employed as an excellent adsorbent for the adsorption of nickel (II) and lead (II) ions. The results indicated that ion adsorption basically relies on adsorbing time, solution pH, initial nickel and lead concentration, and adsorbent dosage. POLYM. COMPOS., 40:4004–4012, 2019. © 2019 Society of Plastics Engineers