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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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| 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. |
| format | Article |
| id | doaj-art-8956b1a9b3f3485ab55ccfb8140af0bd |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| 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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