scholarly journals Physical Properties and Wood Bonding Performance of Polyvinyl Alcohol with Addition of Montmorillonite

2009 ◽  
Vol 55 (2) ◽  
pp. 85-91
Author(s):  
Hirotaka Yoshizawa ◽  
Masaaki Yamada ◽  
Kinji Taki
Keyword(s):  
Polyvinyl Alcohol ◽  
Physical Properties ◽  
Bonding Performance ◽  
Wood Bonding

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.

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".

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