INFLUENCE OF POLYVINYL ALCOHOL-BASED COPOLYMERS ON THE PHYSICO-MECHANICAL PROPERTIES OF THE THERMAL INSULATION MATERIALS
Urkimbayeva P.I. Bakytzhanuly B. Tugelbayeva L.M. Al Azzam K.M. Yespenbetova Sh.O. Mun G.A. Kenessova Z.A. Dilmukhambetov E.E. Negim E.-S.
2022University of Chemical Technology and Metallurgy
Journal of Chemical Technology and Metallurgy
2022#57Issue 61122 - 1128 pp.
The physical and chemical features of diatomite burnout and reinforcing additives (husk and perlite), modified by water-soluble copolymers based on polyvinyl alcohol, starch, and acrylic acid, are presented in this study. Depending on the polymer concentration, linear shrinkage, density, compressive and bending strength limitations, and thermal conductivity coefficients were calculated. Polymer additives have been shown to improve nearly all the stated properties of thermal insulation materials. The materials developed are useful in the production of rigid thermal insulation products for use in power engineering. The use of PVA-based polymers: starch: acrylic acid copolymers have a significant influence on the physico-mechanical characteristics of diatomaceous earth-based heat-insulating composites. When the polymer content is increased to 1 %, the linear shrinkage coefficients decrease from 14.8 to 2.5 %, the compressive strength limits increase from 1.5 to 5.6 MPa, the flexural bending strength limits increase from 0.2 to 2.4 MPa, and the thermal conductivity coefficients decrease from 0.068 to 0.0484 W/m.K
Acrylic acid , Basalt fiber , Diatomite , Polyvinyl alcohol , Rice husk , Thermal insulation material
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Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Pharmacological and Diagnostic Research Center (PDRC) Department of Pharmaceutical Sciences, Faculty of Pharmacy Al-Ahliyya Amman University, Amman, 19328, Jordan
Korkyt Ata Kyzylorda University, Kyzylorda, 120014, Kazakhstan
Kazakh National Agrarian University, Almaty, 050040, Kazakhstan
School of Petroleum Engineering, Satbayev University, 22 Satpayev Str., Almaty, 050013, Kazakhstan
Al-Farabi Kazakh National University
Pharmacological and Diagnostic Research Center (PDRC) Department of Pharmaceutical Sciences
Korkyt Ata Kyzylorda University
Kazakh National Agrarian University
School of Petroleum Engineering
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