Inspired by the nano/microscale hierarchical structure and the precise inorganic/organic interface of natural nacre, we fabricated artificial nacre-like papers based on noncovalent functionalized boron nitride nanosheets (NF-BNNSs) and poly(vinyl alcohol) (PVA) via a vacuum-assisted self-assembly technique. The artificial nacre-like papers exhibit excellent tensile strength (125.2 MPa), on a pa...

a novel starch/poly (vinyl alcohol)/nano-titanium dioxide (st/pva/nano-tio2) biodegradable nanocomposite film was prepared by homogeneously dispersed tio2 nanoparticles in different ratios of starch/pva-based materials, via a solution casting method. glycerol was used as plasticizer. the mechanical and thermal properties of films were studied using tensile and perforation strength tests and the...

A novel Starch/Poly (vinyl alcohol)/nano-Titanium dioxide (ST/PVA/nano-TiO2) biodegradable nanocomposite film was prepared by homogeneously dispersed TiO2 nanoparticles in different ratios of starch/PVA-based materials, via a solution casting method. Glycerol was used as plasticizer. The mechanical and thermal properties of films were studied using tensile and perforation strength tests and the...

In this study, chitosan (CS)/poly(vinyl alcohol) (PVA) (CS/PVA) blend nanofibers with varying weight ratios and silver (Ag)/copper (Cu)/CS/PVA composite fibers have been prepared successfully by the electrospinning process. The tip-to-collector distance was kept at 15 cm, applied voltage varied from to 25 kV. effects of on morphology diameter were investigated. resultant characterized using sca...

A series of blend films comprised 88% hydrolyzed poly(vinyl alcohol) (PVA) with native cassava starch (NCS), high-oxidized (HCS), and pre-gelatinized (PCS) was prepared via solution casting. The blends were plasticized glycerol or glycerol-sorbitol mixture. structure each film characterized by Fourier-transform infrared spectroscopy X-ray diffraction analysis. Cross-sections the PVA/HCS PVA/PCS...

Most gas barrier films produce cracks that lead to a significant loss of integrity when strain is applied. In order fabricate stretchable with low water permeability and high endurance after stretching, we used polydiallydimethylammonium (PDDA) mixed graphene oxide (GO) poly (vinyl alcohol) (PVA) montmorillonite (MMT). These were manufactured by layer-by-layer assembly on an Ecoflex/polydimethy...

This paper presents the benefits of PVA fibers in improving mechanical properties class F fly-ash-based geopolymer concrete. The activator used was 8M sodium hydroxide (NaOH) and silicate (Na2SiO3), with a mass ratio Na2SiO3 to NaOH varied from 1.5 2.5. Cylindrical specimens diameter 100 mm height 200 were prepared for strength tests. geopolymers fixed at 0.4%, 0.6%, 0.8% by total volume. Some ...

Crosslinked anion exchange membranes (AEMs) made from poly(vinyl alcohol) (PVA) as a backbone polymer and different approaches to functional group introduction were prepared by means of solution casting with thermal chemical crosslinking. Membrane characterization was performed SEM, FTIR, thermogravimetric analyses. The performance AEMs evaluated water uptake, swelling degree, ion capacity, OH-...

1. Introduction Flexible and transparent field-effect transistors (FETs) based on organic or inorganic materials are now one of the most attractive research objects because they have potential to bring innovation in conventional electronic device systems. Recently, high-performance flexible integrated circuits using carbon nanotube thin-film transistors (CNT-TFT) have been developed [1-3]. Thes...