The Role of a Succinyl Fluorescein-Succinic Anhydride Grafted Atactic Polypropylene on the Dynamic Mechanical Properties of Polypropylene/Polyamide-6 Blends at the Polypropylene Glass Transition
| Autor: | Emilia P. Collar, Jesús María García-Martínez |
|---|---|
| Přispěvatelé: | Ministerio de Economía y Competitividad (España) |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers and Plastics Interfacial agents 02 engineering and technology DMA aPP-SFSA Article lcsh:QD241-441 chemistry.chemical_compound 020401 chemical engineering lcsh:Organic chemistry 0204 chemical engineering Composite material Wastes Polypropylene chemistry.chemical_classification Succinic anhydride Chemical modification PA6/iPP General Chemistry Polymer Dynamic mechanical analysis 021001 nanoscience & nanotechnology chemistry Polymerization Blends Polyamide Compatibilizers 0210 nano-technology Glass transition |
| Zdroj: | Polymers, Vol 12, Iss 1216, p 1216 (2020) Polymers Digital.CSIC. Repositorio Institucional del CSIC instname Volume 12 Issue 6 |
| Popis: | The present article adequately supports a twofold objective. On one hand, the study of the dynamic mechanical behavior of polypropylene/polyamide-6 blends modified by a novel compatibilizer was the objective. This was previously obtained by chemical modification of an atactic polypropylene polymerization waste. On the other hand, the accurate predictions of these properties in the experimental space scanned was the objective. As a novelty, this compatibilizer contains grafts rather than just maleated ones. Therefore, it consists precisely of an atactic polymer containing succinic anhydride (SA) bridges and both backbone and terminal grafted succinyl-fluorescein groups (SFSA) attached to the atactic backbone (aPP-SFSA). Therefore, it contains 6.2% of total grafting (2.5% as SA and 3.7% as SF), which is equivalent to 6.2· × 10&minus 4 g· mol&minus 1. This interfacial agent was uniquely designed and obtained by the authors themselves. Essentially, this article focuses on how the beneficial effect of both PA6 and aPP-SFSA varies the elastic (E&rsquo ) and the viscous (E&rsquo &rsquo ) behavior of the iPP/aPP-SFSA/PA6 blend at the iPP glass transition. Thus, we accurately measured the Dynamic Mechanical Analysis (DMA) parameters (E&rsquo E&rsquo ) at this specific point considering it represents an extremely unfavorable scenario for the interfacial modifier due to mobility restrictions. Hence, this evidences the real interfacial modifications caused by aPP-SFSA to the iPP/PA6 system. Even more, and since each of the necessary components in the blend typically interacts with one another, we employed a Box&ndash Wilson experimental design by its marked resemblance to the &ldquo agent-based models&rdquo In this manner, we obtained complex algorithms accurately forecasting the dynamic mechanical behavior of the blends for all the composition range of the iPP/aPP-SFSA/PA6 system at the glass transition of iPP. |
| Databáze: | OpenAIRE |
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