| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Daly, Michael
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Mechanical and crystallization properties of hot runner injection molded virgin and recycled polypropylenecitations
- 2021Acute and longer-term psychological distress associated with testing positive for COVID-19: longitudinal evidence from a population-based study of US adultscitations
- 2017A multi-scale correlative investigation of ductile fracturecitations
- 2017Degradation of metallic materials studied by correlative tomographycitations
- 2016Synthesis and characterization of high density polyethylene/peat ash compositescitations
- 2016Chemical surface modification of calcium carbonate particles with stearic acid using different treating methodscitations
- 2016Characteristics of the treated calcium carbonate particles with stearic acid using different treating methods. ; Chemical surface modification of calcium carbonate particles with stearic acid using different treating methods
- 2015Large volume serial section tomography by Xe Plasma FIB dual beam microscopycitations
- 2015Large volume serial section tomography by Xe Plasma FIB dual beam microscopycitations
- 2013Advanced assessment of the ductile fracture mechanism in A508 class 3 reactor pressure vessel steel using laboratory X-ray tomographycitations
- 2013Advanced assessment of ductile tearing in nuclear reactor pressure vessel steel using x-ray tomography
- 2012Advanced assessment of the integrity of ductile components
Places of action
| Organizations | Location | People |
|---|
article
Mechanical and crystallization properties of hot runner injection molded virgin and recycled polypropylene
Abstract
<jats:title>Abstract</jats:title><jats:sec><jats:label /><jats:p>As the demand for sustainable and environmentally conscious practices continues to grow, recycled plastics have become increasingly popular for plastics manufacturers. However, reprocessing these materials can result in inconsistencies in both process and product quality, leading to a loss in mechanical properties. To address this issue, this work investigates the injection molding of recycled and virgin polypropylene (PP). Using a multi‐cavity hot runner mold, correlations between processing parameters, such as melt temperature, mold temperature, pack pressure, soak time, and mechanical properties, were systematically investigated. A multivariate analysis approach was used to model the variables for each material. Results indicated significant correlations between processing, mechanical properties, and morphology. In particular, for the PP, the melt temperature affected the formation of β‐crystals and their transition to α‐crystals upon tensile testing. Different morphology was observed for the recycled polypropylene (rPP), in which crystallization was affected by polyethylene (PE) contamination. The results discuss the injection molding polymer, structure, and properties, relationship providing an approach to understanding and optimizing the mechanical properties of rPP.</jats:p></jats:sec><jats:sec><jats:title>Highlights</jats:title><jats:p><jats:list list-type="bullet"> <jats:list-item><jats:p>Polyethylene contamination in polypropylene significantly influences crystallinity.</jats:p></jats:list-item> <jats:list-item><jats:p>Recycling contamination reduces the polypropylene's ability to form β crystals.</jats:p></jats:list-item> <jats:list-item><jats:p>Virgin polypropylene mechanical properties can be tailored through processing conditions.</jats:p></jats:list-item> <jats:list-item><jats:p>Recycled polypropylene mechanical properties suffer at higher temperatures and residence times.</jats:p></jats:list-item> <jats:list-item><jats:p>Polypropylene α/β morphologies can be visualized after mechanical testing.</jats:p></jats:list-item> </jats:list></jats:p></jats:sec>