TY - JOUR
T1 - Surface-coated fly ash reinforced biodegradable poly(vinyl alcohol) composite films
T2 - Part 2-analysis and characterization
AU - Nath, D. C.D.
AU - Bandyopadhyay, S.
AU - Campbell, J.
AU - Yu, A.
AU - Blackburn, D.
AU - White, C.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - Composite films of poly(vinyl alcohol) (PVA) reinforced with 5, 10, 15, 20 and 25 wt.% surface-coated fly ash by surfactant, sodium lauryl sulphate (SLS-FA) along with 1 wt.% cross-linking agent, glutaraldehyde (GLA) were prepared by aqueous casting method. The tensile strengths of the composite films were increased proportionally with the addition of SLS-FA. The maximum 75% higher strength of the composite with 20 wt.% was achieved compared to that of neat PVA. The modulus of the composites was also increased proportionally with SLS-FA and the maximum 218% reached in composite with 20 wt.%, but the strain at break was decreased with addition of SLS-FA. Changes in FTIR spectra reflect the chemical and/or physical bonding in the ternary PVA, SLS-FA and GLA component systems. In the study of surface morphology, the connectivity was visualized in SEM images along with interstitial voids. The films with SLS-FA show 53% smoother surface calculated with AFM compared to unmodified FA composite films.
AB - Composite films of poly(vinyl alcohol) (PVA) reinforced with 5, 10, 15, 20 and 25 wt.% surface-coated fly ash by surfactant, sodium lauryl sulphate (SLS-FA) along with 1 wt.% cross-linking agent, glutaraldehyde (GLA) were prepared by aqueous casting method. The tensile strengths of the composite films were increased proportionally with the addition of SLS-FA. The maximum 75% higher strength of the composite with 20 wt.% was achieved compared to that of neat PVA. The modulus of the composites was also increased proportionally with SLS-FA and the maximum 218% reached in composite with 20 wt.%, but the strain at break was decreased with addition of SLS-FA. Changes in FTIR spectra reflect the chemical and/or physical bonding in the ternary PVA, SLS-FA and GLA component systems. In the study of surface morphology, the connectivity was visualized in SEM images along with interstitial voids. The films with SLS-FA show 53% smoother surface calculated with AFM compared to unmodified FA composite films.
KW - Composite film
KW - Interface
KW - Poly(vinyl alcohol)
KW - Sodium lauryl sulphate
KW - Surface-coated fly ash
KW - Tensile strength
UR - https://www.scopus.com/pages/publications/77957146024
U2 - 10.1016/j.apsusc.2010.08.025
DO - 10.1016/j.apsusc.2010.08.025
M3 - 文章
AN - SCOPUS:77957146024
SN - 0169-4332
VL - 257
SP - 1216
EP - 1221
JO - Applied Surface Science
JF - Applied Surface Science
IS - 4
ER -