Crystallization and melting behavior of nanoclay-containing polypropylene/poly(trimethylene terephthalate) blends
This contribution concerns preparation and characterization of polypropylene (PP)/poly(trimethylene terephthalate) (PTT) melt-mixed blends in the presence of organically-modified montmorillonite nanoclays and functional compatibilizers. Immiscibility and nanocomposite formation were confirmed via tr...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology and Economics
2012-02-01
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| Series: | eXPRESS Polymer Letters |
| Subjects: | |
| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0002637&mi=cd |
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| author | S. H. Jafari A. Kalati-vahid H. A. Khonakdar A. Asadinezhad U. Wagenknecht D. Jehnichen |
| author_facet | S. H. Jafari A. Kalati-vahid H. A. Khonakdar A. Asadinezhad U. Wagenknecht D. Jehnichen |
| author_sort | S. H. Jafari |
| collection | DOAJ |
| description | This contribution concerns preparation and characterization of polypropylene (PP)/poly(trimethylene terephthalate) (PTT) melt-mixed blends in the presence of organically-modified montmorillonite nanoclays and functional compatibilizers. Immiscibility and nanocomposite formation were confirmed via transmission electron microscopy. An intercalated structure was observed by wide angle X-ray diffraction technique. Crystallization, and melting characteristics were studied by differential scanning calorimetry in both isothermal and non-isothermal modes, supplemented by temperature modulated DSC (TMDSC). A concurrent crystallization was found for both polymeric components in the blends. Whereas blending favored PP crystallizability, it interrupted that of PTT. The addition compatibilizers interfered with rate, temperature, and degree of crystallization of PP and PTT. On the contrary, nanoclays incorporation increased crystallizability of each individual component. However, as for blend nanocomposite samples, the way the crystallization behavior changed was established to depend on the type of nanoclay. Based on kinetic analysis, isothermal crystallization nucleation followed athermal mechanism, while that of non-isothermal obeyed thermal mode. Addition of nanoclays shifted nucleation mechanism from athermal to thermal mode. |
| format | Article |
| id | doaj-art-a59294573fd44decaccbe082ebdbd538 |
| institution | Kabale University |
| issn | 1788-618X |
| language | English |
| publishDate | 2012-02-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-a59294573fd44decaccbe082ebdbd5382025-08-20T03:36:58ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2012-02-016214815810.3144/expresspolymlett.2012.16Crystallization and melting behavior of nanoclay-containing polypropylene/poly(trimethylene terephthalate) blendsS. H. JafariA. Kalati-vahidH. A. KhonakdarA. AsadinezhadU. WagenknechtD. JehnichenThis contribution concerns preparation and characterization of polypropylene (PP)/poly(trimethylene terephthalate) (PTT) melt-mixed blends in the presence of organically-modified montmorillonite nanoclays and functional compatibilizers. Immiscibility and nanocomposite formation were confirmed via transmission electron microscopy. An intercalated structure was observed by wide angle X-ray diffraction technique. Crystallization, and melting characteristics were studied by differential scanning calorimetry in both isothermal and non-isothermal modes, supplemented by temperature modulated DSC (TMDSC). A concurrent crystallization was found for both polymeric components in the blends. Whereas blending favored PP crystallizability, it interrupted that of PTT. The addition compatibilizers interfered with rate, temperature, and degree of crystallization of PP and PTT. On the contrary, nanoclays incorporation increased crystallizability of each individual component. However, as for blend nanocomposite samples, the way the crystallization behavior changed was established to depend on the type of nanoclay. Based on kinetic analysis, isothermal crystallization nucleation followed athermal mechanism, while that of non-isothermal obeyed thermal mode. Addition of nanoclays shifted nucleation mechanism from athermal to thermal mode.http://www.expresspolymlett.com/letolt.php?file=EPL-0002637&mi=cdNanocompositespolymer blendscrystallizationpolypropylenePoly(trimethylene terephthalat |
| spellingShingle | S. H. Jafari A. Kalati-vahid H. A. Khonakdar A. Asadinezhad U. Wagenknecht D. Jehnichen Crystallization and melting behavior of nanoclay-containing polypropylene/poly(trimethylene terephthalate) blends eXPRESS Polymer Letters Nanocomposites polymer blends crystallization polypropylene Poly(trimethylene terephthalat |
| title | Crystallization and melting behavior of nanoclay-containing polypropylene/poly(trimethylene terephthalate) blends |
| title_full | Crystallization and melting behavior of nanoclay-containing polypropylene/poly(trimethylene terephthalate) blends |
| title_fullStr | Crystallization and melting behavior of nanoclay-containing polypropylene/poly(trimethylene terephthalate) blends |
| title_full_unstemmed | Crystallization and melting behavior of nanoclay-containing polypropylene/poly(trimethylene terephthalate) blends |
| title_short | Crystallization and melting behavior of nanoclay-containing polypropylene/poly(trimethylene terephthalate) blends |
| title_sort | crystallization and melting behavior of nanoclay containing polypropylene poly trimethylene terephthalate blends |
| topic | Nanocomposites polymer blends crystallization polypropylene Poly(trimethylene terephthalat |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0002637&mi=cd |
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