Multivariate identification of extruded PLA samples from the infrared spectrum
| Autor: | Rosa Cantero, Jordi-Roger Riba, Jonathan Cailloux, Violeta García-Masabet, Trini Canals, Maria Lluisa Maspoch |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica, Universitat Politècnica de Catalunya. Doctorat en Ciència i Enginyeria dels Materials, Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Universitat Politècnica de Catalunya. MCIA - Motion Control and Industrial Applications Research Group, Universitat Politècnica de Catalunya. e-PLASCOM - Plàstics i Compòsits Ecològics |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers Feature extraction Espectroscòpia d'infraroigs Infrared spectroscopy Enginyeria dels materials::Materials plàstics i polímers [Àrees temàtiques de la UPC] 02 engineering and technology Reactive extrusion Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica [Àrees temàtiques de la UPC] Light scattering Polylactic acid chemistry.chemical_compound General Materials Science Thermal stability Polylactid acid 020502 materials Mechanical Engineering Classification Polímers Enginyeria elèctrica::Dispositius magnètics [Àrees temàtiques de la UPC] Statistical classification Pilot plant 0205 materials engineering chemistry Àcid polilàctic Mechanics of Materials Process control Biological system |
| Zdroj: | Repositorio Abierto de la UdL Universitad de Lleida UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
| DOI: | 10.1007/s10853-019-04091-6 |
| Popis: | This is a post-peer-review, pre-copyedit version of an article published in Journal of materials science. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10853-019-04091-6 Polylactic acid (PLA) is a biodegradable thermoplastic polymer that is presented as a good alternative to petroleum-derived plastics. Some of the major drawbacks of this material are its lack of thermal stability and rapid degradation in large-scale production; thus, special care must be taken during processing. To improve their properties, a reactive extrusion with a multi-epoxy chain extender (SAmfE) has been performed at pilot plant scale. The induced topological modifications produce a mixture of several types of non-uniform structures. Conventional chromatographic (SEC—static light scattering) or spectroscopic (nuclear magnetic resonance) techniques usually fail in characterizing non-uniform structures. A method for the classification of modified PLA samples based on a multivariate treatment of the spectral data obtained by Fourier-transform infrared spectroscopy, jointly with the application of feature extraction and classification algorithms, was applied in this study. The results of this work show the potential of the methodology proposed to improve quality control during manufacturing. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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