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Properties and structural characterization of oxidized starch/PVA/α‐zirconium phosphate composites
Author(s) -
Yang Yajuan,
Liu Changhua,
Chang Peter R.,
Chen Yun,
Anderson Debbie P.,
Stumborg Mark
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.31099
Subject(s) - materials science , differential scanning calorimetry , zirconium phosphate , scanning electron microscope , thermogravimetric analysis , zirconium , fourier transform infrared spectroscopy , ultimate tensile strength , composite material , polyvinyl alcohol , starch , casting , phosphate , nuclear chemistry , chemical engineering , chemistry , organic chemistry , metallurgy , physics , engineering , thermodynamics
Two series of composites, i.e., polyvinyl alcohol (PVA)/oxidized starch (OST)/exfoliated α‐zirconium phosphate (POST‐ZrPn) and PVA/starch (ST)/exfoliated α‐zirconium phosphate (PST‐ZrPn), were fabricated using a casting and solvent evaporation method. The composites were characterized by Fourier transform infrared spectroscopy (FT‐IR), thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), wide‐angle X‐ray diffraction (XRD), scanning electron microscopy (SEM), tensile testing, and moisture uptake. Compared with PST‐ZrPn, POST‐ZrPn films with the same component ratio showed higher tensile strength ( σ b ), lower elongation at break ( ε b ) and improved water resistance. Additionally, in the POST‐ZrPn series, σ b and ε b increased with an increase in α‐zirconium phosphate (α‐ZrP) loading; however, higher α‐ZrP loads resulted in the aggregation of α‐ZrP particles. Compared with POST‐ZrP0, the values for σ b , ε b , and water resistance of POST‐ZrP3, containing 1.5 wt % α‐ZrP, were increased by 128.8%, 51.4%, and 30.2%, respectively. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010