Analysis of asymmetric morphology evolutions in iPP molded samples induced by uneven temperature field
Mold surface temperature has a strong effect on the amount of molecular orientation and morphology developed in a non‐isothermal flowing polymer melt. In this work, a well‐characterized isotactic polypropylene was injected in a rectangular mold cavity asymmetrically conditioned by a thin electric he...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Liparoti, Sara [verfasserIn] |
|---|
| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Rechteinformationen: |
Nutzungsrecht: © 2016 American Institute of Chemical Engineers |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: AIChE journal - Hoboken, NJ : Wiley-Blackwell, 1955, 62(2016), 8, Seite 2699-2712 |
|---|---|
| Übergeordnetes Werk: |
volume:62 ; year:2016 ; number:8 ; pages:2699-2712 |
| Links: |
|---|
| DOI / URN: |
10.1002/aic.15241 |
|---|
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OLC1980789630 |
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| 520 | |a Mold surface temperature has a strong effect on the amount of molecular orientation and morphology developed in a non‐isothermal flowing polymer melt. In this work, a well‐characterized isotactic polypropylene was injected in a rectangular mold cavity asymmetrically conditioned by a thin electric heater specifically designed. The cavity surface was heated at temperatures ranging from 80 to 160°C for different times (0.5, 8, and 18 s) after the first contact with the polymer. Asymmetrical thermal conditions have a strong influence on the melt flow, by changing its distribution along the cavity thickness, and final part deformation. The morphology distribution of the molded samples was found strongly asymmetric with complex and peculiar features. Optical and Electron microscopy confirmed the complete reorganization of the crystalline structures along the sample thickness. X‐rays analysis reveals that molecular orientation of the sample surface decreases with the mold temperature and the heating time. © 2016 American Institute of Chemical Engineers AIChE J , 62: 2699–2712, 2016 | ||
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10.1002/aic.15241 doi PQ20160815 (DE-627)OLC1980789630 (DE-599)GBVOLC1980789630 (PRQ)c2152-417c307d9e7bdf0952e7229c5a2d53b01968eb4231759974077219b2184ac55a3 (KEY)0553148920160000062000802699analysisofasymmetricmorphologyevolutionsinippmolde DE-627 ger DE-627 rakwb eng 660 DNB 58.00 bkl Liparoti, Sara verfasserin aut Analysis of asymmetric morphology evolutions in iPP molded samples induced by uneven temperature field 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Mold surface temperature has a strong effect on the amount of molecular orientation and morphology developed in a non‐isothermal flowing polymer melt. In this work, a well‐characterized isotactic polypropylene was injected in a rectangular mold cavity asymmetrically conditioned by a thin electric heater specifically designed. The cavity surface was heated at temperatures ranging from 80 to 160°C for different times (0.5, 8, and 18 s) after the first contact with the polymer. Asymmetrical thermal conditions have a strong influence on the melt flow, by changing its distribution along the cavity thickness, and final part deformation. The morphology distribution of the molded samples was found strongly asymmetric with complex and peculiar features. Optical and Electron microscopy confirmed the complete reorganization of the crystalline structures along the sample thickness. X‐rays analysis reveals that molecular orientation of the sample surface decreases with the mold temperature and the heating time. © 2016 American Institute of Chemical Engineers AIChE J , 62: 2699–2712, 2016 Nutzungsrecht: © 2016 American Institute of Chemical Engineers polymer properties polymer processing Temperature Chemical engineering Polymers Morphology Titomanlio, Giuseppe oth Sorrentino, Andrea oth Enthalten in AIChE journal Hoboken, NJ : Wiley-Blackwell, 1955 62(2016), 8, Seite 2699-2712 (DE-627)129590495 (DE-600)240008-X (DE-576)015082997 0001-1541 nnns volume:62 year:2016 number:8 pages:2699-2712 http://dx.doi.org/10.1002/aic.15241 Volltext http://onlinelibrary.wiley.com/doi/10.1002/aic.15241/abstract http://search.proquest.com/docview/1801859408 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 GBV_ILN_2016 58.00 AVZ AR 62 2016 8 2699-2712 |
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10.1002/aic.15241 doi PQ20160815 (DE-627)OLC1980789630 (DE-599)GBVOLC1980789630 (PRQ)c2152-417c307d9e7bdf0952e7229c5a2d53b01968eb4231759974077219b2184ac55a3 (KEY)0553148920160000062000802699analysisofasymmetricmorphologyevolutionsinippmolde DE-627 ger DE-627 rakwb eng 660 DNB 58.00 bkl Liparoti, Sara verfasserin aut Analysis of asymmetric morphology evolutions in iPP molded samples induced by uneven temperature field 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Mold surface temperature has a strong effect on the amount of molecular orientation and morphology developed in a non‐isothermal flowing polymer melt. In this work, a well‐characterized isotactic polypropylene was injected in a rectangular mold cavity asymmetrically conditioned by a thin electric heater specifically designed. The cavity surface was heated at temperatures ranging from 80 to 160°C for different times (0.5, 8, and 18 s) after the first contact with the polymer. Asymmetrical thermal conditions have a strong influence on the melt flow, by changing its distribution along the cavity thickness, and final part deformation. The morphology distribution of the molded samples was found strongly asymmetric with complex and peculiar features. Optical and Electron microscopy confirmed the complete reorganization of the crystalline structures along the sample thickness. X‐rays analysis reveals that molecular orientation of the sample surface decreases with the mold temperature and the heating time. © 2016 American Institute of Chemical Engineers AIChE J , 62: 2699–2712, 2016 Nutzungsrecht: © 2016 American Institute of Chemical Engineers polymer properties polymer processing Temperature Chemical engineering Polymers Morphology Titomanlio, Giuseppe oth Sorrentino, Andrea oth Enthalten in AIChE journal Hoboken, NJ : Wiley-Blackwell, 1955 62(2016), 8, Seite 2699-2712 (DE-627)129590495 (DE-600)240008-X (DE-576)015082997 0001-1541 nnns volume:62 year:2016 number:8 pages:2699-2712 http://dx.doi.org/10.1002/aic.15241 Volltext http://onlinelibrary.wiley.com/doi/10.1002/aic.15241/abstract http://search.proquest.com/docview/1801859408 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 GBV_ILN_2016 58.00 AVZ AR 62 2016 8 2699-2712 |
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Analysis of asymmetric morphology evolutions in iPP molded samples induced by uneven temperature field |
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Analysis of asymmetric morphology evolutions in iPP molded samples induced by uneven temperature field |
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Liparoti, Sara |
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Liparoti, Sara |
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10.1002/aic.15241 |
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analysis of asymmetric morphology evolutions in ipp molded samples induced by uneven temperature field |
| title_auth |
Analysis of asymmetric morphology evolutions in iPP molded samples induced by uneven temperature field |
| abstract |
Mold surface temperature has a strong effect on the amount of molecular orientation and morphology developed in a non‐isothermal flowing polymer melt. In this work, a well‐characterized isotactic polypropylene was injected in a rectangular mold cavity asymmetrically conditioned by a thin electric heater specifically designed. The cavity surface was heated at temperatures ranging from 80 to 160°C for different times (0.5, 8, and 18 s) after the first contact with the polymer. Asymmetrical thermal conditions have a strong influence on the melt flow, by changing its distribution along the cavity thickness, and final part deformation. The morphology distribution of the molded samples was found strongly asymmetric with complex and peculiar features. Optical and Electron microscopy confirmed the complete reorganization of the crystalline structures along the sample thickness. X‐rays analysis reveals that molecular orientation of the sample surface decreases with the mold temperature and the heating time. © 2016 American Institute of Chemical Engineers AIChE J , 62: 2699–2712, 2016 |
| abstractGer |
Mold surface temperature has a strong effect on the amount of molecular orientation and morphology developed in a non‐isothermal flowing polymer melt. In this work, a well‐characterized isotactic polypropylene was injected in a rectangular mold cavity asymmetrically conditioned by a thin electric heater specifically designed. The cavity surface was heated at temperatures ranging from 80 to 160°C for different times (0.5, 8, and 18 s) after the first contact with the polymer. Asymmetrical thermal conditions have a strong influence on the melt flow, by changing its distribution along the cavity thickness, and final part deformation. The morphology distribution of the molded samples was found strongly asymmetric with complex and peculiar features. Optical and Electron microscopy confirmed the complete reorganization of the crystalline structures along the sample thickness. X‐rays analysis reveals that molecular orientation of the sample surface decreases with the mold temperature and the heating time. © 2016 American Institute of Chemical Engineers AIChE J , 62: 2699–2712, 2016 |
| abstract_unstemmed |
Mold surface temperature has a strong effect on the amount of molecular orientation and morphology developed in a non‐isothermal flowing polymer melt. In this work, a well‐characterized isotactic polypropylene was injected in a rectangular mold cavity asymmetrically conditioned by a thin electric heater specifically designed. The cavity surface was heated at temperatures ranging from 80 to 160°C for different times (0.5, 8, and 18 s) after the first contact with the polymer. Asymmetrical thermal conditions have a strong influence on the melt flow, by changing its distribution along the cavity thickness, and final part deformation. The morphology distribution of the molded samples was found strongly asymmetric with complex and peculiar features. Optical and Electron microscopy confirmed the complete reorganization of the crystalline structures along the sample thickness. X‐rays analysis reveals that molecular orientation of the sample surface decreases with the mold temperature and the heating time. © 2016 American Institute of Chemical Engineers AIChE J , 62: 2699–2712, 2016 |
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| title_short |
Analysis of asymmetric morphology evolutions in iPP molded samples induced by uneven temperature field |
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http://dx.doi.org/10.1002/aic.15241 http://onlinelibrary.wiley.com/doi/10.1002/aic.15241/abstract http://search.proquest.com/docview/1801859408 |
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Titomanlio, Giuseppe Sorrentino, Andrea |
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2024-07-04T03:46:35.081Z |
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