Ionenes based on polyvinyl alcohol and the rheological properties of their solutions

1991 ◽  
Vol 33 (11) ◽  
pp. 2189-2194
Author(s):  
V.V. Ryabenko ◽  
D.O. Timoshenko ◽  
A.N. Dudka ◽  
I.A. Uskov
Keyword(s):  
Polyvinyl Alcohol ◽  
Rheological Properties

scholarly journals Studying the Rheological Properties of Non-Newtonian Fluids Under the Addition of Different Chemical Additives

2020 ◽  
Vol 23 (1) ◽  
pp. 68-80
Author(s):  
Douaa Hussein Ali ◽  
Muhannad A.R. Mohammed
Keyword(s):  
Sodium Chloride ◽  
Polyvinyl Alcohol ◽  
Rheological Properties ◽  
Apparent Viscosity ◽  
Xanthan Gum ◽  
Methyl Cellulose ◽  
Carboxy Methyl Cellulose ◽  
Chemical Additives ◽  
Low Viscosity ◽  
Carboxy Methyl

This research study the rheological properties ( plastic viscosity, yield point and apparent viscosity) of non-Newtonian fluids under the addition of different chemical additives with different concentrations, such as (xanthan gum (xc-polymer) , carboxy methyl cellulose ( high and low viscosity ) ,polyacrylamide, polyvinyl alcohol, starch, quebracho, chrome lignosulfonate, and sodium chloride (NaCl). Fann viscometer model 800 with 8-speeds was used to measure the rheological properties of these samples, that have already been prepared. All samples were subjected to Bingham plastic model. It was concluded that the plastic viscosity, yield point and apparent viscosity should be increased with increasing the concentrations of (xanthan gum (xc-polymer) , carboxy methyl cellulose ( high and low viscosity ) ,polyacrylamide, polyvinyl alcohol, starch and sodium chloride (NaCl), while the opposite is true for quebracho, chrome lignosulfonate.

scholarly journals Rheological Properties of Compositions Based on Modified Polyvinyl Alcohol

2017 ◽  
Vol 11 (3) ◽  
pp. 304-309 ◽  
Author(s):  
Volodymyr Krasinskyi ◽  
Oleh Suberlyak ◽  
Antonuk Viktoria ◽  
Tomasz Jachowicz
Keyword(s):  
Polyvinyl Alcohol ◽  
Rheological Properties

Stabilization and regulation of the rheological properties of electroconducting solutions of polyvinyl alcohol

1984 ◽  
Vol 26 (11) ◽  
pp. 2523-2529
Author(s):  
N.K. Kireyeva ◽  
Yu.D. Semchikova ◽  
D.N. Yemel'yanov
Keyword(s):  
Polyvinyl Alcohol ◽  
Rheological Properties

Rheological properties of interphase adsorption layers of polyvinyl alcohol on liquid boundaries

1975 ◽  
Vol 17 (9) ◽  
pp. 2422-2428
Author(s):  
V.N. Izmailova ◽  
I.G. Alekseyeva ◽  
Z.D. Tulovskaya
Keyword(s):  
Polyvinyl Alcohol ◽  
Rheological Properties ◽  
Adsorption Layers

scholarly journals Effect of Polyvinyl Alcohol on the Rheological Properties of Cement Mortar

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 754
Author(s):  
Fang Liu ◽  
Baomin Wang ◽  
Yunqing Xing ◽  
Kunkun Zhang ◽  
Wei Jiang
Keyword(s):  
Polyvinyl Alcohol ◽  
Rheological Properties ◽  
Yield Stress ◽  
Cement Mortar ◽  
Chemical Properties ◽  
Degree Of Polymerization ◽  
Plastic Viscosity ◽  
Water Soluble ◽  
Water Soluble Polymer ◽  
Hydrolysis Degree

Polyvinyl alcohol (PVA) is a kind of water-soluble polymer, which has been widely used in different industries due to its excellent mechanical and chemical properties. In this paper, the effects of polyvinyl alcohol with different hydrolysis and polymerization degrees on the rheological properties of cement mortar are studied. The results show that the rheological properties of PVA-modified cement mortar can be described by the modified Bingham model. The yield stress of modified cement mortar is less than that of unmodified mortar when the degree of polymerization and the content of PVA are small. With the increase of polyvinyl alcohol content and polymerization degree, the yield stress and plastic viscosity of modified cement mortar increase sharply, which are larger than those of the unmodified cement mortar. However, the effect of hydrolysis degree of PVA on yield stress and plastic viscosity of modified cement mortar is not obvious.

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