physical, mechanical and structural properties of poly(lactic acid) (pla)-basedfilms containing different amounts of nanoclay and cellulose prepared bysolvent casting method were examined. physical properties including thickness,transparency and color did not change significantly with addition of nanoparticles to the polymer matrix. x-ray diffraction (xrd) patterns showed that pure pla has a se...

The effects of aqueous and deuterium oxide (D2O) solutions alcohols (methanol, ethanol, 1-propanol, 2-propanol, 1-butanol) on the thermomechanical properties poly(lactic acid)—PLA—films were assessed by dynamic mechanical analysis. glass transition temperature (Tg) PLA films immersed in 25%, 50%, 75%, 100% (v/v) alcoholic compared with Tg water D2O. methanol ethanol decreased as concentration a...

In this work, polymer nanocomposite films based on poly(L-lactic acid) (PLLA) were reinforced with mesoporous silica nanoparticles, cellular foam (MCF) and Santa Barbara amorphous-15 (SBA). PLLA is a biobased aliphatic polyester, that possesses excellent thermomechanical properties, has already been commercialized for packaging applications. The aim was to utilize nanoparticles have established...

Combining a nanocomposite technique and the electrospinning process, a robust dual-porosity scaffold structure was developed for a facile transport of metabolic nutrients and wastes through the nano-sized pores and for the cell implantation and blood vessel invasion through the micro-sized pores. The montmorillonite (MMT) nano-sized platelets were incorporated into poly(L-lactic acid) (PLLA) so...

In this paper microsensing elements with thin piezoelectric films are presented. Three different materials from the basic types – ceramic, metal oxide and polymer, in microsystems for environment parameters control are used. Zinc oxide (ZnO) and lead zirconium titanate (PZT) by sputtering technology from hot targets are deposited. The optimal parameters of the process and thickness of the layer...

nanocomposite composed of organoclay(cloisite 20a-c20a) and poly lactic acid (pla) was prepared by solvent casting method. physical, mechanical, thermal, barrier and microstructure properties of the composite were studied. x-ray diffraction (xrd) patterns and scanning electron microscopy (sem) images revealed that the diffraction peak of nanoclay shifted to lower angles and the d-spacing betwee...

Ultrathin nanocomposite films were prepared on solid supports via adsorption of organic and inorganic molecules from solution. Coordination geometry for transition metal ions was preserved by embedding metal ligands into titanium oxide gel films, and porous titanium oxide films were prepared by selective removal of organic components from polymer/metal oxide composite films using oxygen plasma ...