Preparation and Characteristic of PC/PLA/TPU Blends by Reactive Extrusion
To overcome the poor toughness of PC/PLA blends due to the intrinsic properties of materials and poor compatibility, thermoplastic urethane (TPU) was added to PC/PLA blends as a toughener; meantime, catalyst di-n-butyltin oxide (DBTO) was also added for catalyzing transesterification of components i...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/393582 |
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| author | Yueyun Zhou Lifa Luo Wenyong Liu Guangsheng Zeng Yi Chen |
| author_facet | Yueyun Zhou Lifa Luo Wenyong Liu Guangsheng Zeng Yi Chen |
| author_sort | Yueyun Zhou |
| collection | DOAJ |
| description | To overcome the poor toughness of PC/PLA blends due to the intrinsic properties of materials and poor compatibility, thermoplastic urethane (TPU) was added to PC/PLA blends as a toughener; meantime, catalyst di-n-butyltin oxide (DBTO) was also added for catalyzing transesterification of components in order to modify the compatibility of blends. The mechanical, thermal, and rheological properties of blends were investigated systematically. The results showed that the addition of TPU improves the toughness of PC/PLA blends significantly, with the increase of TPU, the elongation at break increases considerably, and the impact strength increases firstly and then falls, while the tensile strength decreases significantly and the blends exhibit a typical plastic fracture behavior. Meantime, TPU is conducive to the crystallinity of PLA in blends which is inhibited seriously by PC and damages the thermal stability of blends slightly. Moreover, the increased TPU makes the apparent viscosity of blends melt decrease due to the well melt fluidity of TPU; the melt is closer to the pseudoplasticity melt. Remarkably, the transesterification between the components improves the compatibility of blends significantly, and more uniform structure results in a higher crystallinity and better mechanical properties. |
| format | Article |
| id | doaj-art-f2d91c7020cb422faa8b900c3a2d8fc7 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-f2d91c7020cb422faa8b900c3a2d8fc72025-02-03T01:30:57ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/393582393582Preparation and Characteristic of PC/PLA/TPU Blends by Reactive ExtrusionYueyun Zhou0Lifa Luo1Wenyong Liu2Guangsheng Zeng3Yi Chen4Institute of Architecture and Urban Planning, Hunan University of Technology, Zhuzhou 412007, ChinaZhengYe Packaging Limited Company of Zhongshan, Zhongshan, ChinaKey Laboratory of Advanced Materials and Technology for Packaging, Hunan University of Technology, Zhuzhou 412007, ChinaKey Laboratory of Advanced Materials and Technology for Packaging, Hunan University of Technology, Zhuzhou 412007, ChinaKey Laboratory of Advanced Materials and Technology for Packaging, Hunan University of Technology, Zhuzhou 412007, ChinaTo overcome the poor toughness of PC/PLA blends due to the intrinsic properties of materials and poor compatibility, thermoplastic urethane (TPU) was added to PC/PLA blends as a toughener; meantime, catalyst di-n-butyltin oxide (DBTO) was also added for catalyzing transesterification of components in order to modify the compatibility of blends. The mechanical, thermal, and rheological properties of blends were investigated systematically. The results showed that the addition of TPU improves the toughness of PC/PLA blends significantly, with the increase of TPU, the elongation at break increases considerably, and the impact strength increases firstly and then falls, while the tensile strength decreases significantly and the blends exhibit a typical plastic fracture behavior. Meantime, TPU is conducive to the crystallinity of PLA in blends which is inhibited seriously by PC and damages the thermal stability of blends slightly. Moreover, the increased TPU makes the apparent viscosity of blends melt decrease due to the well melt fluidity of TPU; the melt is closer to the pseudoplasticity melt. Remarkably, the transesterification between the components improves the compatibility of blends significantly, and more uniform structure results in a higher crystallinity and better mechanical properties.http://dx.doi.org/10.1155/2015/393582 |
| spellingShingle | Yueyun Zhou Lifa Luo Wenyong Liu Guangsheng Zeng Yi Chen Preparation and Characteristic of PC/PLA/TPU Blends by Reactive Extrusion Advances in Materials Science and Engineering |
| title | Preparation and Characteristic of PC/PLA/TPU Blends by Reactive Extrusion |
| title_full | Preparation and Characteristic of PC/PLA/TPU Blends by Reactive Extrusion |
| title_fullStr | Preparation and Characteristic of PC/PLA/TPU Blends by Reactive Extrusion |
| title_full_unstemmed | Preparation and Characteristic of PC/PLA/TPU Blends by Reactive Extrusion |
| title_short | Preparation and Characteristic of PC/PLA/TPU Blends by Reactive Extrusion |
| title_sort | preparation and characteristic of pc pla tpu blends by reactive extrusion |
| url | http://dx.doi.org/10.1155/2015/393582 |
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