STUDY OF THE EFFICIENCY OF THE USES OF POLYVINYL ALCOHOL AND GLYCEROL AS PLASTIFIERS IN POLYMERIC BLENDS CONTAINING PBAT AND STARCH

STUDY OF THE EFFICIENCY OF THE USES OF POLYVINYL ALCOHOL AND GLYCEROL AS PLASTIFIERS IN POLYMERIC BLENDS CONTAINING PBAT AND STARCH

Santos, Luis Victor Rocha dos; Galvão, Vitor Almeida de Novaes; Silveira, Marco Aurélio; Gonçalves, Ana Paula Bispo; Correia, Paulo Romano Cruz; Pisanu, Luciano

Full article:

The biodegradable polymer PBAT can form blends with natural and abundant polymers such as starch, resulting in materials suitable to produce packaging that has a reduced environmental impact upon disposal. PVOH and glycerol have shown promise as plasticizers in these blends, improving their mechanical properties and degradation rates. In the present study, through extrusion processes, injection molding, tensile mechanical and impact tests, PBAT/starch polymer blends plasticized separately with PVOH, and glycerol were produced and evaluated. The obtained data support the plasticizing capabilities of PVOH and glycerol, reducing the tensile modulus of the blends by 21 and 54%, respectively.

The biodegradable polymer PBAT can form blends with natural and abundant polymers such as starch, resulting in materials suitable to produce packaging that has a reduced environmental impact upon disposal. PVOH and glycerol have shown promise as plasticizers in these blends, improving their mechanical properties and degradation rates. In the present study, through extrusion processes, injection molding, tensile mechanical and impact tests, PBAT/starch polymer blends plasticized separately with PVOH, and glycerol were produced and evaluated. The obtained data support the plasticizing capabilities of PVOH and glycerol, reducing the tensile modulus of the blends by 21 and 54%, respectively.

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DOI: 10.5151/siintec2023-305918

Referências bibliográficas

• [1] " XU, Yongjing et al. The preparation and characterization of plasticized PVA fibres by a novel Glycerol/Pseudo Ionic Liquids system with melt spinning method. European Polymer Journal, v. 133, p. 109768, 2020. TIAN, Huafeng et al. Fabrication and properties of polyvinyl alcohol/starch blend films: Effect of composition and humidity. International Journal of Biological Macromolecules, v. 96, p. 518-523, 2017. ZHAI, Xiaosong et al. Effects of high starch content on the physicochemical properties
• [2] of starch/PBAT nanocomposite films prepared by extrusion blowing. Carbohydrate
• [3] polymers, v. 239, p. 116231, 2020.
• [4] FOURATI, Yesmine et al. PBAT/thermoplastic starch blends: Effect of
• [5] compatibilizers on the rheological, mechanical and morphological properties.
• [6] Carbohydrate polymers, v. 199, p. 51-57, 2018.
• [7] MALI, Suzana et al. Polyvinyl alcohol films with different degrees of hydrolysis and
• [8] polymerization. Semina: Ciências Exatas e Tecnológicas, v. 40, n. 2, p. 169-178,
• [9] 2019.
• [10] SOMBRIO, Bruna Regina et al. Poly (3-hydroxybutyrate) production synthesized by
• [11] Cupriavidus necator on fed-batch culture using glycerol. Polímeros, v. 27, p. 110-115,
• [12] 2017.
• [13] LIU, Bo et al. Preparation and properties of water and glycerol-plasticized sugar beet
• [14] pulp plastics. Journal of Polymers and the Environment, v. 19, p. 559-567, 2011."

Como citar:

Santos, Luis Victor Rocha dos ; Galvão, Vitor Almeida de Novaes ; Silveira, Marco Aurélio ; Gonçalves, Ana Paula Bispo ; Correia, Paulo Romano Cruz ; Pisanu, Luciano ; "STUDY OF THE EFFICIENCY OF THE USES OF POLYVINYL ALCOHOL AND GLYCEROL AS PLASTIFIERS IN POLYMERIC BLENDS CONTAINING PBAT AND STARCH", p-236-243. In: . São Paulo: Blucher, 2023.
ISSN 23577592, DOI 10.5151/siintec2023-305918