Novel and practical low-temperature 3D printing technology composed of a machine optimized parameters was successfully developed. Under environment 0–−20 °C, poly (vinyl alcohol) (PVA) matrix hydrogels including PVA-sodium lignosulphonate (PVA-LS) hydrogel carboxymethylcellulose (PVA-CMC) exhibited specific rheology properties, building theoretical printable bases. The self-made realized machin...

We reviewed our structure studies on poly(vinyl alcohol) (PVA) gels formed in the mixtures of dimethyl sulfoxide (DMSO) and water using various scattering methods, including wide-, smalland ultra-small-angle neutron scattering and light scattering. These studies revealed the hierarchic structure of PVA gels formed in DMSO/water (60/40 v/v) in a very wide spatial scale from 1 Å to several microm...

UV-vis spectrophotometeric, transmission electron microscopy (TEM) and viscometric techniques were used for the formation, characterization and kinetics of silver sol formation using silver nitrate as source of silver, paracetamol as reducing agent and cetyltrimethylammonium bromide (CTAB) as the stabilizer in absence and presence of poly(vinyl alcohol) (PVA). The sigmoidal curve of absorbance ...

In this study, nanofibers with different ratios of poly(vinyl alcohol) and chitosan incorporated moxifloxacin hydrochloride (MH/PVA/CS) were fabricated through the blending electrospinning, morphological features tested using scanning electron microscopy (SEM). Further characterization new nanofiber was accomplished by Thermogravimetric analysis (TG), X-ray diffraction (XRD) Fourier-transform i...

Pervaporation is a membrane process that offers high separation performance and has an important potential for the treatment of saline water sources. In this study, poly(vinyl alcohol) (PVA) PVA-SiO2 nanocomposite membranes were prepared by solution-casting method, pervaporative desalination studies carried out synthetic seawater (35 g L-1) at 30, 40 50?C. Effects temperatures incorporation SiO...

We here present an effective strategy to prepare enhanced composites using poly(vinyl alcohol) (PVA) and multiwalled carbon nanotubes (MWCNT). It contains two essential steps. First, the elaboration of homogeneous aqueous MWCNT dispersions and the selection of the most effective dispersing agent. In a sequential dispersion protocol for seven common dispersants, including surfactants and polymer...

Adhesive bone pastes for dental implants and soft tissue interfaces were developed using α-tricalcium phosphate (α-TCP) α-cyclodextrin (α-CD)/nonanyl group-modified poly(vinyl alcohol) (C9-PVA) inclusion complex solution (ICS). The thixotropic of α-CD/C9-PVA ICS was prepared by mixing α-CD C9-PVA in deionized water. paste led to the highest bonding shear adhesion between commercial pure titaniu...

Abstract Nanocomposite polymer electrolyte films based on a blend of two polymers jackfruit seed starch (JSS) and poly (vinyl alcohol) (PVA) complexed with nano-particle zinc oxide (ZnO) (i.e., (50 wt% JSS/50 PVA) + x ZnO where = 0, 2, 4, 6, 8, 10, 12 14) were prepared by using the casting solution method. Electrochemical impedance spectroscopy (EIS) has been employed between frequencies 10 Hz ...

Lignin-based fibers were produced by electrospinning aqueous dispersions of lignin, poly(vinyl alcohol) (PVA), and cellulose nanocrystals (CNCs). Defect-free nanofibers with up to 90 wt % lignin and 15% CNCs were achieved. The properties of the aqueous dispersions, including viscosity, electrical conductivity, and surface tension, were examined and correlated to the electrospinnability and resu...

In batch culture for Poly(vinyl alcohol) (PVA)-degrading enzyme (PVAase) production by a mixed culture, higher pH (pH 7.5) was favorable for PVAase production at the prophase of cultivation, but lower pH (pH 7.0) was favorable at the anaphase. This situation was caused by the fact that the optimum pH for different key enzymes [PVA dehydrogenase (PVADH) and oxidized PVA hydrolase (OPH)] producti...