Physical Properties of Radiation-Crosslinked Polyvinyl Alcohol-Polyethylene Glycol Hydrogels from the Viewpoint of Their Application as Medical Dressings

2017 ◽  
Vol 62 (5) ◽  
pp. 402-412 ◽  
Author(s):  
V.B. Neimash ◽  
◽  
H.D. Kupianskyi ◽  
I.V. Olkhovyk ◽  
V.Yu. Povarchuk ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Polyvinyl Alcohol ◽  
Physical Properties

Study of Some Physical Properties for Polyvinyl Alcohol-Polyethylene Glycol Blends

2021 ◽  
Vol 19 (1) ◽  
pp. 49-56
Author(s):  
Sanaa S. Najm
Keyword(s):  
Polyethylene Glycol ◽  
Absorption Coefficient ◽  
Polyvinyl Alcohol ◽  
Physical Properties ◽  
Polymer Blends ◽  
Shear Viscosity ◽  
Acoustic Impedance ◽  
Ultrasonic Absorption ◽  
Reduced Viscosity ◽  
Polymeric Solutions

A polymer blends (PVA/PEG) have been prepared at various concentrations(6%, 8%, 10%, 12%, and 14%) g /ml by dissolving different weights from the powders{Pva and Peg}.The behavior of this mixture has been studied utilize some physical properties such as ultrasonic absorption coefficient, relaxation amplitude, specific acoustic Impedance, compression, bulk modulus, shear viscosity, and Reduced viscosity. The outcomes referenced that each of these characteristics increased with increasing concentration of polymeric solutions, "while compressibility decreased with increasing concentration solutions".

scholarly journals Physical properties and stability of quercetin loaded niosomes: Stabilizing effects of phytosterol and polyethylene glycol in orange juice model

2021 ◽  
Vol 296 ◽  
pp. 110463
Author(s):  
Neda Elmi ◽  
Babak Ghanbarzadeh ◽  
Ali Ayaseh ◽  
Samar Sahraee ◽  
Maryam Khakbaz Heshmati ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Physical Properties ◽  
Orange Juice

Electrospun Polyethylene Glycol/Polyvinyl Alcohol Composite Nanofibrous Membranes as Shape-Stabilized Solid–Solid Phase Change Materials

2020 ◽  
Vol 2 (3) ◽  
pp. 167-177 ◽  
Author(s):  
Junwen Huang ◽  
Houyong Yu ◽  
Somia Yassin Hussain Abdalkarim ◽  
Jaromir Marek ◽  
Jiri Militky ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Polyvinyl Alcohol ◽  
Phase Change ◽  
Phase Change Materials ◽  
Solid Phase ◽  
Nanofibrous Membranes

scholarly journals The Influence of Surfactant (SDS) on the Adsorption Properties of Polyvinyl Alcohol and Polyethylene Glycol in an Alumina/Solution System

2002 ◽  
Vol 20 (6) ◽  
pp. 573-582 ◽  
Author(s):  
S. Chibowski ◽  
M. Paszkiewicz ◽  
M. Wiśniewska
Keyword(s):  
Polyethylene Glycol ◽  
Polyvinyl Alcohol ◽  
Adsorption Layer ◽  
Sodium Dodecyl ◽  
Adsorption Properties ◽  
Degree Of Hydrolysis ◽  
Ionic Polymers ◽  
Solution System ◽  
Molecular Weights ◽  
Polymer Surfactant

The influence of sodium dodecyl sulphate (SDS) on the adsorption properties of non-ionic polymers, i.e. polyethylene glycol (PEG) and polyvinyl alcohol (PVA), at the Al2O3/solution interface was studied. Measurements for various molecular weights and for various amounts of functional groups on the polymer macromolecules were undertaken and the results obtained discussed in the light of these variations. Studies of the mutual interactions of the polymer–surfactant system in aqueous solution were helpful in explaining the equilibria involved in the Al2O3/polymer solution system in the presence of SDS. The thickness of the adsorption layer was determined by viscometric methods and the influence of the degree of hydrolysis of PVA on the structure of the adsorption layer demonstrated.

scholarly journals Impact of Structural Variations on Pre-Hollow/Micro-Porous Yarn's Tensile and Physical Properties

2012 ◽  
Vol 7 (1) ◽  
pp. 155892501200700 ◽  
Author(s):  
Arunangshu Mukhopadhyay ◽  
Saiyed Muzffar Ishtiaque ◽  
Devanand Uttam
Keyword(s):  
Polyvinyl Alcohol ◽  
Physical Properties ◽  
Product Quality ◽  
Tensile Behavior ◽  
Structural Variations ◽  
Yarn Strength ◽  
The Core

In the present study impact of structural variations on pre-hollow/micro-porous yarn's tensile and physical properties were investigated in view of their processing and ultimate product quality. The results show that: the core pre-hollow yarns and doubled pre-hollow yarns possessing continuous polyvinyl alcohol (PVA) filaments are better in tensile behavior than blended pre-hollow yarns which contain discrete PVA staple fibers. The doubled pre-hollow yarns were found to have the lowest unevenness, thick places, thin places and total imperfections followed by blended pre-hollow and core pre-hollow yarns, while blended pre-hollow yarns showed lowest number of neps. The core pre-hollow yarns exhibit lowest hairiness followed by blended pre-hollow yarns and doubled pre-hollow yarns. Use of double roving during spinning is beneficial for improving yarn strength, unevenness imperfections and hairiness in all the pre-hollow yarns.

Synthesis of Gamma-Alumina Nanopowders Using Waste Metal Aluminum and Stability Surfactants

2019 ◽  
Vol 19 (02) ◽  
pp. 1950014
Author(s):  
Sabereh Nazari ◽  
Sadegh Nazari ◽  
Fariba Mansourizadeh ◽  
Gholamreza Karimi
Keyword(s):  
Particle Size ◽  
Polyethylene Glycol ◽  
Polyvinyl Alcohol ◽  
Specific Surface ◽  
Pore Volume ◽  
Average Particle Size ◽  
Average Crystallite Size ◽  
Average Particle ◽  
Gamma Alumina ◽  
Metal Aluminum

In this study, high purity gamma-alumina nanopowders with crystalline structures have been prepared via a sol–gel process by waste metal aluminum, HCl, NaOH, Polyethylene glycol (PEG) and polyvinyl alcohol (PVA). Polyethylene glycol and polyvinyl alcohol have been used as stabilizing agents. The characterization of the samples has been performed utilizing XRD, FTIR, SEM, N2 adsorption/desorption techniques. Prepared samples of gamma-alumina at 800∘C with PEG has an average crystallite size of 2.58[Formula: see text]nm, average particle size of 21[Formula: see text]nm, specific surface area (SSA) of 65.55[Formula: see text]m2/g, and pore volume of [Formula: see text]0.06[Formula: see text]cm3/g. The average crystallite size of 3.07[Formula: see text]nm, average particle size of 31[Formula: see text]nm, specific surface area of 131.25[Formula: see text]m2/g, and pore volume of [Formula: see text]0.14[Formula: see text]cm3/g, were obtained using PVA surfactant.

Sign in / Sign up

Export Citation Format

Share Document