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Materiale Plastice
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https://doi.org/10.37358/Mat.Plast.1964

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Materiale Plastice (Mater. Plast.), Year 2014, Volume 51, Issue 4,





Nicusor Alin SIRBU, Viorel-Aurel SERBAN, Sorin SAVU Influence of the Ultrasonic Microvibrations under the Processing of the HDPE Thermoplastic Material


Abstract:
The paper present the experimental results of a comparative research study between classical and ultrasonically processing by extrusion of the HDPE-220J (High Density Polyethylene) polymeric material. For this material, often used in engineering, have been obtained, in flow activated using ultrasonic waves, relatives increases of the flow rate up to 77% of polymer flowing through extrusion compared with the processing without ultrasounds. These results have been obtained in laminar flowing and no imperfections have been presented due to the extrusion process. The experimental results of the state transition using the differential scanning calorimetry analysis DSC (Differential Scanning Calorimeter), realized for classical and ultrasonically flow activation, confirms that ultrasonic microvibrations produced no changes in the internal structure of the polymer. The ultrasonic device used in this research is subject to a patent application registered at OSIM with number A/00979/2013. Keywords: polymeric materials, extrusion, ultrasounds, flow rate



Issue: 2014 Volume 51, Issue 4
Pages:
Publication date: 2014/12/30
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