Development of high performance materials based on opaque PET packaging: Preparation of samples by melt extrusion
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REVALPET_Action 3_Deliverable 321_DV.pdf (1,255Mb) (Accés restringit)
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Inclou dades d'ús des de 2022
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hdl:2117/343798
Tipus de documentReport de recerca
Data publicació2018-03-14
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Abstract
The first step of this work is the preparation of blends by melt extrusion. The objective of this deliverable is to describe the processing conditions of these blends. We do not deal with the characterization of blends properties here: it will be the subject of two other deliverables.
The most important points of this deliverables are as follows:
- The UPV/EHU team processed blends of virgin polymers, in order to compare their properties with those of blends of recycled polymers. Blends were stabilized with both conventional stabilizers (PE-g-MA for blends containing PE and PP-g-MA for blends containing PP) and TiO2 nanoparticles, in order to compare both stabilization techniques. Blends were processed in a Collins ZK 25T co-rotative twin-screw extruder. For rheological and morphological characterization, samples were processed by compression in the molten state.
- The UPPA team worked on blends of recycled polymers. Processing was performed in a LABTECH engineering company Ltd co-rotative twin-screw extruder with L/D=40. For rheological characterization, samples were processed by compression in the molten state.
- The UPC team evaluated the degradation of opaque PET during extrusion, and compared it with the degradation of recycled, transparent PET in different conditions. The conclusion is that the degradation of opaque PET is comparable to that of transparent PET in the same extrusion conditions, and that the decrease in intrinsic viscosity (2%) is acceptable in the PET industry.
Descripció
Report describing the processing conditions used for the preparation of blends in the project REVALPET
CitacióSantana, O. Development of high performance materials based on opaque PET packaging: Preparation of samples by melt extrusion. 2018.
Fitxers | Descripció | Mida | Format | Visualitza |
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REVALPET_Action 3_Deliverable 321_DV.pdf | 1,255Mb | Accés restringit |