The Variance of the Polypropylene α Relaxation Temperature in iPP/a-PP-<i>p</i>PBMA/Mica Composites
By considering that the α relaxation related to the glass to rubber transition (obtained by dynamic mechanical analysis) of isotactic polypropylene (iPP) can be identified with the thermal history of the material (and so, with the processing step), this work deals with the changes in this transition...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Journal of Composites Science |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-477X/6/2/57 |
| _version_ | 1797479080994537472 |
|---|---|
| author | Jesús-María García-Martínez Emilia P. Collar |
| author_facet | Jesús-María García-Martínez Emilia P. Collar |
| author_sort | Jesús-María García-Martínez |
| collection | DOAJ |
| description | By considering that the α relaxation related to the glass to rubber transition (obtained by dynamic mechanical analysis) of isotactic polypropylene (iPP) can be identified with the thermal history of the material (and so, with the processing step), this work deals with the changes in this transition temperature (Tα) in polypropylene/mica composites caused by the mutual effect of the other components (mica and interfacial additive). Here, the additive used is a <i>p</i>-phenylen-bis-maleamic grafted atactic polypropylene (aPP-<i>p</i>PBMA) obtained from polymerization wastes (aPP) by the authors. This additive contains 5.0·10<sup>−4</sup> g.mol<sup>−1</sup> (15% <i>w</i>/<i>w</i>) grafted <i>p</i>PBMA. In essence, this article has two different objectives: (1) To observe and discuss the changes in Tα of the polymer matrix (iPP) caused by the combined effect of the other components (mica and aPP-<i>p</i>PBMA); and (2) predicting the values for Tα in terms of both aPP-<i>p</i>PBMA and mica content for whatever composition in the experimental space scanned. This task was undertaken by employing a Box–Wilson experimental design assuming the complex character of the interactions between the components of the iPP/aPP-<i>p</i>PBMA/mica system, which define the ultimate properties of the composite. |
| first_indexed | 2024-03-09T21:40:43Z |
| format | Article |
| id | doaj.art-f2fd6d9c0777456194a9727685908f84 |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-09T21:40:43Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-f2fd6d9c0777456194a9727685908f842023-11-23T20:32:51ZengMDPI AGJournal of Composites Science2504-477X2022-02-01625710.3390/jcs6020057The Variance of the Polypropylene α Relaxation Temperature in iPP/a-PP-<i>p</i>PBMA/Mica CompositesJesús-María García-Martínez0Emilia P. Collar1Polymer Engineering Group (GIP), Polymer Science and Technology Institute (ICTP), Spanish Council for Scientific Research (CSIC), C/Juan de la Cierva, 3, 28006 Madrid, SpainPolymer Engineering Group (GIP), Polymer Science and Technology Institute (ICTP), Spanish Council for Scientific Research (CSIC), C/Juan de la Cierva, 3, 28006 Madrid, SpainBy considering that the α relaxation related to the glass to rubber transition (obtained by dynamic mechanical analysis) of isotactic polypropylene (iPP) can be identified with the thermal history of the material (and so, with the processing step), this work deals with the changes in this transition temperature (Tα) in polypropylene/mica composites caused by the mutual effect of the other components (mica and interfacial additive). Here, the additive used is a <i>p</i>-phenylen-bis-maleamic grafted atactic polypropylene (aPP-<i>p</i>PBMA) obtained from polymerization wastes (aPP) by the authors. This additive contains 5.0·10<sup>−4</sup> g.mol<sup>−1</sup> (15% <i>w</i>/<i>w</i>) grafted <i>p</i>PBMA. In essence, this article has two different objectives: (1) To observe and discuss the changes in Tα of the polymer matrix (iPP) caused by the combined effect of the other components (mica and aPP-<i>p</i>PBMA); and (2) predicting the values for Tα in terms of both aPP-<i>p</i>PBMA and mica content for whatever composition in the experimental space scanned. This task was undertaken by employing a Box–Wilson experimental design assuming the complex character of the interactions between the components of the iPP/aPP-<i>p</i>PBMA/mica system, which define the ultimate properties of the composite.https://www.mdpi.com/2504-477X/6/2/57hybrid materialscompatibilizerscompositesnanocompositesmodelinginterfaces |
| spellingShingle | Jesús-María García-Martínez Emilia P. Collar The Variance of the Polypropylene α Relaxation Temperature in iPP/a-PP-<i>p</i>PBMA/Mica Composites Journal of Composites Science hybrid materials compatibilizers composites nanocomposites modeling interfaces |
| title | The Variance of the Polypropylene α Relaxation Temperature in iPP/a-PP-<i>p</i>PBMA/Mica Composites |
| title_full | The Variance of the Polypropylene α Relaxation Temperature in iPP/a-PP-<i>p</i>PBMA/Mica Composites |
| title_fullStr | The Variance of the Polypropylene α Relaxation Temperature in iPP/a-PP-<i>p</i>PBMA/Mica Composites |
| title_full_unstemmed | The Variance of the Polypropylene α Relaxation Temperature in iPP/a-PP-<i>p</i>PBMA/Mica Composites |
| title_short | The Variance of the Polypropylene α Relaxation Temperature in iPP/a-PP-<i>p</i>PBMA/Mica Composites |
| title_sort | variance of the polypropylene α relaxation temperature in ipp a pp i p i pbma mica composites |
| topic | hybrid materials compatibilizers composites nanocomposites modeling interfaces |
| url | https://www.mdpi.com/2504-477X/6/2/57 |
| work_keys_str_mv | AT jesusmariagarciamartinez thevarianceofthepolypropylenearelaxationtemperatureinippappipipbmamicacomposites AT emiliapcollar thevarianceofthepolypropylenearelaxationtemperatureinippappipipbmamicacomposites AT jesusmariagarciamartinez varianceofthepolypropylenearelaxationtemperatureinippappipipbmamicacomposites AT emiliapcollar varianceofthepolypropylenearelaxationtemperatureinippappipipbmamicacomposites |