Fabrication and Characterization of Sb₂O₃/Carboxymethyl Cellulose Sodium and the Properties of Plasticized Starch Composite Films

Abstract

Sb2O3 nanoparticles were prepared using CMC as the stabilizing agent. The nanocomposite was fabricated with Sb2O3/CMC nanoparticles as the filler in a GPS matrix. Characterization of Sb2O3/CMC nanoparticles revealed that Sb2O3 (about 84 wt.‐%) was encapsulated by CMC (about 16 wt.‐%) with the size of about 30–50 nm. Because there was good interaction between the Sb2O3/CMC filler and the GPS matrix, Sb2O3/CMC nanoparticles could be uniformly dispersed in the GPS matrix at a low filler loading level, resulting in obvious improvement in tensile strength and UV absorbance, and in the resistance of water vapor permeability. However, introduction of the nanoparticles into the matrix, decreased the elongation at break and the thermal stability of the nanocomposites.magnified image

Advanced Nano-biocomposites Based on Starch

“…-Thermal stability: a decrease in the thermal decomposition temperature but an increase in the residual weight at the end of thermal decomposition was observed for nano-biocomposites reinforced by ZrO 2 ·nH 2 O , CdS (Radhakrishnan et al 2007), CdSe (Božanić et al 2009), and Sb 2 O 3 ). While Liu et al (2011a) and Chang et al (2009) ascribed this to the poor thermal stability of the CMC in the nanoparticles, Radhakrishnan et al (2007) and Božanić et al (2009) explained that the increased hydroxyl groups (due to the presence of the nanoparticles which broke the intermolecular interactions of the starch matrix) Polysaccharides DOI 10.1007/978-3-319-03751-6_50-1 # Springer International Publishing Switzerland 2014 could result in thermal condensation between them, which could consequently direct the reaction toward carbonization instead of the formation of volatile components (Zhang et al 2002), -UV-visible light absorbance/transmittance: compared to the pure starch matrix, nanobiocomposites reinforced by ZnO Yu et al 2009) and Sb 2 O 3 ) displayed increased UV-Vis absorbance due to the quantum confinement effect of the nanofiller, and both the starch-CdS (Radhakrishnan et al 2007) and starch-CdSe (Božanić et al 2009) nano-biocomposite films showed improved light transparency.…”

Synthesis and investigation of the electrical and dielectric properties of Co3O4/(CMC+PVA) nanocomposite films

“…These fillers include Sb 2 O 3 [5], hydroxyapatite (HA) [6], zirconium hydroxide [8], Ag [9], and ZnO [10], cellulose nanocrystals (CNC) [28], and nanoclay [29]. Yadava et al [11] prepared graphene oxide (GO, at 1wt.%)/CMC/alginate composite with improved tensile strength and Young's modulus by 40 and 1128 %, respectively.…”

“…Polymers or blends having nano-sized fillers exhibits markedly improved mechanical, thermal, and optical properties when compared to pure polymers or their traditional composites. Also, improving the electrical and magnetic properties of the polymeric materials is the subject that attracts many investigators [5][6][7][8][9][10][11][12][13][14][15][16].…”

Oxidized starch films reinforced with natural halloysite

“…Usually, when the amount of inorganic fillers is increased, the E value decreases and the TS value increases. 31 In the OStH films, the PEG macromolecules on the halloysite nanotubes can act as bridges to connect the fillers in the matrix. The two phases showed good compatibility.…”