Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch

Abstract Cassava starch was blended with glycerol to prepare thermoplastic starch (TPS). Thermoplastic starch was premixed with sericin (TPSS) by solution mixing and then melt-blended with polyethylene grafted maleic anhydride (PEMAH). The effect of sericin on the mechanical properties, morphology,...

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Autores principales:	Thanongsak Chaiyaso, Pornchai Rachtanapun, Nanthicha Thajai, Krittameth Kiattipornpithak, Pensak Jantrawut, Warintorn Ruksiriwanich, Phisit Seesuriyachan, Noppol Leksawasdi, Yuthana Phimolsiripol, Charin Techapun, Sarana Rose Sommano, Toshiaki Ougizawa, Kamon Yakul, Kittisak Jantanasakulwong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/88bc72983b754a4e80f3abe5b04f3924
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spelling	oai:doaj.org-article:88bc72983b754a4e80f3abe5b04f39242021-12-02T18:09:03ZSericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch10.1038/s41598-021-99417-32045-2322https://doaj.org/article/88bc72983b754a4e80f3abe5b04f39242021-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99417-3https://doaj.org/toc/2045-2322Abstract Cassava starch was blended with glycerol to prepare thermoplastic starch (TPS). Thermoplastic starch was premixed with sericin (TPSS) by solution mixing and then melt-blended with polyethylene grafted maleic anhydride (PEMAH). The effect of sericin on the mechanical properties, morphology, thermal properties, rheology, and reaction mechanism was investigated. The tensile strength and elongation at break of the TPSS10/PEMAH blend were improved to 12.2 MPa and 100.4%, respectively. The TPS/PEMAH morphology presented polyethylene grafted maleic anhydride particles (2 μm) dispersed in the thermoplastic starch matrix, which decreased in size to approximately 200 nm when 5% sericin was used. The melting temperature of polyethylene grafted maleic anhydride (121 °C) decreased to 111 °C because of the small crystal size of the polyethylene grafted maleic anhydride phase. The viscosity of TPS/PEMAH increased with increasing sericin content because of the chain extension. Fourier-transform infrared spectroscopy confirmed the reaction between the amino groups of sericin and the maleic anhydride groups of polyethylene grafted maleic anhydride. This reaction reduced the interfacial tension between thermoplastic starch and polyethylene grafted maleic anhydride, which improved the compatibility, mechanical properties, and morphology of the blend.Thanongsak ChaiyasoPornchai RachtanapunNanthicha ThajaiKrittameth KiattipornpithakPensak JantrawutWarintorn RuksiriwanichPhisit SeesuriyachanNoppol LeksawasdiYuthana PhimolsiripolCharin TechapunSarana Rose SommanoToshiaki OugizawaKamon YakulKittisak JantanasakulwongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thanongsak Chaiyaso Pornchai Rachtanapun Nanthicha Thajai Krittameth Kiattipornpithak Pensak Jantrawut Warintorn Ruksiriwanich Phisit Seesuriyachan Noppol Leksawasdi Yuthana Phimolsiripol Charin Techapun Sarana Rose Sommano Toshiaki Ougizawa Kamon Yakul Kittisak Jantanasakulwong Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch
description	Abstract Cassava starch was blended with glycerol to prepare thermoplastic starch (TPS). Thermoplastic starch was premixed with sericin (TPSS) by solution mixing and then melt-blended with polyethylene grafted maleic anhydride (PEMAH). The effect of sericin on the mechanical properties, morphology, thermal properties, rheology, and reaction mechanism was investigated. The tensile strength and elongation at break of the TPSS10/PEMAH blend were improved to 12.2 MPa and 100.4%, respectively. The TPS/PEMAH morphology presented polyethylene grafted maleic anhydride particles (2 μm) dispersed in the thermoplastic starch matrix, which decreased in size to approximately 200 nm when 5% sericin was used. The melting temperature of polyethylene grafted maleic anhydride (121 °C) decreased to 111 °C because of the small crystal size of the polyethylene grafted maleic anhydride phase. The viscosity of TPS/PEMAH increased with increasing sericin content because of the chain extension. Fourier-transform infrared spectroscopy confirmed the reaction between the amino groups of sericin and the maleic anhydride groups of polyethylene grafted maleic anhydride. This reaction reduced the interfacial tension between thermoplastic starch and polyethylene grafted maleic anhydride, which improved the compatibility, mechanical properties, and morphology of the blend.
format	article
author	Thanongsak Chaiyaso Pornchai Rachtanapun Nanthicha Thajai Krittameth Kiattipornpithak Pensak Jantrawut Warintorn Ruksiriwanich Phisit Seesuriyachan Noppol Leksawasdi Yuthana Phimolsiripol Charin Techapun Sarana Rose Sommano Toshiaki Ougizawa Kamon Yakul Kittisak Jantanasakulwong
author_facet	Thanongsak Chaiyaso Pornchai Rachtanapun Nanthicha Thajai Krittameth Kiattipornpithak Pensak Jantrawut Warintorn Ruksiriwanich Phisit Seesuriyachan Noppol Leksawasdi Yuthana Phimolsiripol Charin Techapun Sarana Rose Sommano Toshiaki Ougizawa Kamon Yakul Kittisak Jantanasakulwong
author_sort	Thanongsak Chaiyaso
title	Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch
title_short	Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch
title_full	Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch
title_fullStr	Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch
title_full_unstemmed	Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch
title_sort	sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/88bc72983b754a4e80f3abe5b04f3924
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Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch

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