Characteristics of Biodegradable Polylactide/Thermoplastic Starch/Nanosilica Composites: Effects of Plasticizer and Nanosilica Functionality

The effect of plasticizer (polydimethylsiloxanol) and neat (SiO2) or modified (having amine functional groups) silica (A-SiO2) on morphology, thermal, mechanical, and rheological properties of PLA/TPS blends compatibilized by maleated PLA (MPLA) was investigated. Toughened PLA/MPLA/TPS (60/10/30) bl...

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Main Authors: Regina Jeziorska, Agnieszka Szadkowska, Ewa Spasowka, Aneta Lukomska, Michal Chmielarek
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2018/4571368
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author Regina Jeziorska
Agnieszka Szadkowska
Ewa Spasowka
Aneta Lukomska
Michal Chmielarek
author_facet Regina Jeziorska
Agnieszka Szadkowska
Ewa Spasowka
Aneta Lukomska
Michal Chmielarek
author_sort Regina Jeziorska
collection DOAJ
description The effect of plasticizer (polydimethylsiloxanol) and neat (SiO2) or modified (having amine functional groups) silica (A-SiO2) on morphology, thermal, mechanical, and rheological properties of PLA/TPS blends compatibilized by maleated PLA (MPLA) was investigated. Toughened PLA/MPLA/TPS (60/10/30) blend containing 3 wt.% of plasticizer and various contents (1, 3, or 5 wt.%) of silica were prepared in a corotating twin-screw extruder. From SEM, it is clear that plasticized PLA/MPLA/TPS blend continuous porous structure is highly related to the silica content and its functionality. The results indicate that polydimethylsiloxanol enhances ductility and the initial thermal stability of the plasticized blend. DSC and DMTA analyses show that nucleation ability and reinforcing effect of A-SiO2 on plasticized blend crystallization are much better than those of SiO2. Silica practically had no effect on the thermo-oxidative degradation. However, the composites with A-SiO2 had better thermal stability than those with SiO2. Moreover, silica significantly improved the elongation at break.
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institution Kabale University
issn 1687-8434
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language English
publishDate 2018-01-01
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record_format Article
series Advances in Materials Science and Engineering
spelling doaj-art-8956b1a9b3f3485ab55ccfb8140af0bd2025-02-03T07:24:21ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/45713684571368Characteristics of Biodegradable Polylactide/Thermoplastic Starch/Nanosilica Composites: Effects of Plasticizer and Nanosilica FunctionalityRegina Jeziorska0Agnieszka Szadkowska1Ewa Spasowka2Aneta Lukomska3Michal Chmielarek4Department of Polymer Technology and Processing, Industrial Chemistry Research Institute, Rydygiera 8 St., 01-793 Warsaw, PolandDepartment of Polymer Technology and Processing, Industrial Chemistry Research Institute, Rydygiera 8 St., 01-793 Warsaw, PolandDepartment of Polymer Technology and Processing, Industrial Chemistry Research Institute, Rydygiera 8 St., 01-793 Warsaw, PolandDepartment of Biomedical Technology, Cosmetic Chemicals and Electrochemistry, Industrial Chemistry Research Institute, Rydygiera 8 St., 01-793 Warsaw, PolandFaculty of Chemistry, Warsaw University of Technology, Koszykowa 75 St., 00-662 Warsaw, PolandThe effect of plasticizer (polydimethylsiloxanol) and neat (SiO2) or modified (having amine functional groups) silica (A-SiO2) on morphology, thermal, mechanical, and rheological properties of PLA/TPS blends compatibilized by maleated PLA (MPLA) was investigated. Toughened PLA/MPLA/TPS (60/10/30) blend containing 3 wt.% of plasticizer and various contents (1, 3, or 5 wt.%) of silica were prepared in a corotating twin-screw extruder. From SEM, it is clear that plasticized PLA/MPLA/TPS blend continuous porous structure is highly related to the silica content and its functionality. The results indicate that polydimethylsiloxanol enhances ductility and the initial thermal stability of the plasticized blend. DSC and DMTA analyses show that nucleation ability and reinforcing effect of A-SiO2 on plasticized blend crystallization are much better than those of SiO2. Silica practically had no effect on the thermo-oxidative degradation. However, the composites with A-SiO2 had better thermal stability than those with SiO2. Moreover, silica significantly improved the elongation at break.http://dx.doi.org/10.1155/2018/4571368
spellingShingle Regina Jeziorska
Agnieszka Szadkowska
Ewa Spasowka
Aneta Lukomska
Michal Chmielarek
Characteristics of Biodegradable Polylactide/Thermoplastic Starch/Nanosilica Composites: Effects of Plasticizer and Nanosilica Functionality
Advances in Materials Science and Engineering
title Characteristics of Biodegradable Polylactide/Thermoplastic Starch/Nanosilica Composites: Effects of Plasticizer and Nanosilica Functionality
title_full Characteristics of Biodegradable Polylactide/Thermoplastic Starch/Nanosilica Composites: Effects of Plasticizer and Nanosilica Functionality
title_fullStr Characteristics of Biodegradable Polylactide/Thermoplastic Starch/Nanosilica Composites: Effects of Plasticizer and Nanosilica Functionality
title_full_unstemmed Characteristics of Biodegradable Polylactide/Thermoplastic Starch/Nanosilica Composites: Effects of Plasticizer and Nanosilica Functionality
title_short Characteristics of Biodegradable Polylactide/Thermoplastic Starch/Nanosilica Composites: Effects of Plasticizer and Nanosilica Functionality
title_sort characteristics of biodegradable polylactide thermoplastic starch nanosilica composites effects of plasticizer and nanosilica functionality
url http://dx.doi.org/10.1155/2018/4571368
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