共 60 条
Structural, Optical, and Thermal Properties of PVA/SrTiO3/CNT Polymer Nanocomposites
被引:9
作者:

Alshammari, Alhulw H.
论文数: 0 引用数: 0
h-index: 0
机构:
Jouf Univ, Coll Sci, Phys Dept, POB 2014, Sakaka, Saudi Arabia Jouf Univ, Coll Sci, Phys Dept, POB 2014, Sakaka, Saudi Arabia
机构:
[1] Jouf Univ, Coll Sci, Phys Dept, POB 2014, Sakaka, Saudi Arabia
来源:
关键词:
PVA polymer;
SrTiO3/CNT nanofillers;
thermal and optical characteristics;
BAND-GAP;
ORGANIC MATERIALS;
NANOPARTICLES;
COMPOSITES;
DISPERSION;
BEHAVIOR;
ENERGY;
FILMS;
ACID;
D O I:
10.3390/polym16101392
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
Successful preparation of PVA/SrTiO3/CNT polymer nanocomposite films was accomplished via the solution casting method. The structural, optical, and thermal properties of the films were tested by XRD, SEM, FTIR, TGA, and UV-visible spectroscopy. Inclusion of the SrTiO3/CNT nanofillers with a maximum of 1 wt% drastically improved the optical and thermal properties of PVA films. SrTiO3 has a cubic crystal structure, and its average crystal size was found to be 28.75 nm. SEM images showed uniform distribution in the sample with 0.3 wt% of SrTiO3/CNTs in the PVA film, while some agglomerations appeared in the samples of higher SrTiO3/CNT content, i.e., at 0.7 and 1.0 wt%, in the PVA polymer films. The inclusion of SrTiO3/CNTs improved the thermal stability of PVA polymer films. The direct and indirect optical band gaps of the PVA films decreased when increasing the mass of the SrTiO3/CNTs, while the single-oscillator energy (E-0) and dispersion energy (E-d) increased. The films' refractive indices were gradually increased upon increasing the nanofillers' weight. In addition, improvements in the optical susceptibility and nonlinear refractive indices' values were also obtained. These films are qualified for optoelectronic applications due to their distinct optical and thermal properties.
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