2023 (4) 5

https://doi.org/10.15407/polymerj.45.04.299

STUDY OF THE EFFECTIVENESS OF THE INFLUENCE OF PLASTICIZERS AND FUNCTIONAL ADDITIVES IN THE RECEIVING OF THERMOPLASTIC STARCH ON ITS FILM-FORMING AND DESTRUCTIVE PROPERTIES

T.V. Dmytrieva,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine,
ORCID: 0000-0002-3526-8395

S.K. Krymovska,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine,
ORCID: 0000-0002-9723-4633

G.E. Glieva,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine,
ORCID: 0000-0002-2916-0257

V.I. Bortnytskyi,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine,
ORCID: 0000-0003-4954-6533

S.V. Riabov,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shose, Kyiv, 02155, Ukraine,
e-mail: imcnasusr@ukr.net
ORCID: 0000-0003-2996-3794

Polym. J., 2023, 45, no. 4: 299-305.

Section: Structure and properties.

Language: Ukrainian.

Abstract:

A literature review on the production of thermoplastic starch (TPS) with various plasticizing additives as a component of biodegradable polymer compositions was conducted. Plasticizing additives with different functional groups, due to which starch modification occurs, were analyzed. In order to expand the spectrum of functional additives for the formation of TPS, the introduction of acids with different amounts of carboxyl groups: citric, oxalic, oleic, stearic was studied. The technological parameters of thermomechanical processing of starch compositions and the quantitative composition of the components are determined. Physical and mechanical tests of strength and elasticity of film samples of TPS compositions and compatible with synthetic polymer were carried out. In order to obtain the structural characteristics of TPS and TPS films with polyethylene, studies were carried out by IR-Fourier spectroscopy and mass spectrometry. Studies of the effect of UV irradiation on the degradability of TPS compositions after exposure in a climate chamber for 90 days were conducted. It was found that the loss of strength and elasticity of TPS and TPS+PE film samples is (82–90)%, elasticity (60–70)%, depending on plasticizing and structure-forming additives and their amounts.

Keywords: thermoplastic starch, structure-forming additives, film formation.

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