Biodegradability and nutrients release of thermoplastic starch and poly (ε-caprolactone) blends for agricultural uses

Driven by the environmental stress caused by plastics, the interest on eco-friendly polymers has attracted the attention of researchers and industry. Thermoplastic starch (TPS) and poly (ε-caprolactone) (PCL) blends are good examples of sustainable material, exhibiting synergism between economic via...

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Veröffentlicht in:Carbohydrate polymers 2022-04, Vol.282, p.119058-119058, Article 119058
Hauptverfasser: Corrêa, Ana Carolina, de Campos, Adriana, Claro, Pedro Ivo Cunha, Guimarães, Gelton Geraldo Fernandes, Mattoso, Luiz Henrique Capparelli, Marconcini, José Manoel
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container_end_page 119058
container_issue
container_start_page 119058
container_title Carbohydrate polymers
container_volume 282
creator Corrêa, Ana Carolina
de Campos, Adriana
Claro, Pedro Ivo Cunha
Guimarães, Gelton Geraldo Fernandes
Mattoso, Luiz Henrique Capparelli
Marconcini, José Manoel
description Driven by the environmental stress caused by plastics, the interest on eco-friendly polymers has attracted the attention of researchers and industry. Thermoplastic starch (TPS) and poly (ε-caprolactone) (PCL) blends are good examples of sustainable material, exhibiting synergism between economic viability and properties. However, its biodegradability aligned to nutrients release has been less explored in agricultural applications. Herein, it is proposed the investigation of biodegradability of urea plasticized TPS and PCL blends, compatibilized with PCL grafted with maleic anhydride (PCL-g-MA), aiming fertilizers and sustainable agricultural products. The blends were prepared in a twin-screw extruder using a flat film die. The mechanical, thermal, morphological, and physical properties of TPS-PCL films were characterized, including biodegradation analysis via Bartha respirometer and nitrogen release in the soil. The films presented biodegradability and nitrogen release as a function of TPS content on blends formulation, presenting flexibility and robust mechanical properties. These findings may open a way of multifunctional agricultural products applied as fertilizer materials through economical and sustainable mulching films. [Display omitted]
doi_str_mv 10.1016/j.carbpol.2021.119058
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subjects Biodegradable blends
Mulching
Nitrogen release
Sustainable films
Urea
title Biodegradability and nutrients release of thermoplastic starch and poly (ε-caprolactone) blends for agricultural uses
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