Processing and structure of HDPE/glassy carbon composite suitable for 3D printing

• Autorzy: Olesik Piotr , Kozioł Mateusz , Jała Jakub

Warianty tytułu

PL

Właściwości przetwórcze i struktura kompozytów HDPE/węgiel szklisty przeznaczonych do druku 3D

• Języki publikacji: EN

Abstrakty

EN

The following paper discusses the studies of high-density polyethylene (HDPE) reinforced with glassy carbon (GC) particles. The conducted research focused on the processing properties of the material. Samples were made from extruded HDPE filament reinforced with GC. The granulate for extrusion was made by depositing GC particles on the surface of HDPE granules in ethylene alcohol. The granulate was subsequently extruded in the form of a filament (1.6 mm in diameter). The filament was cut into smaller pieces, which were then prepared and examined using a light microscope. Density measurements and quantitative analysis were performed to examine the amount of glassy carbon in the samples. The measurements showed about a 1% volume of glassy carbon in the reinforced filament. The melt flow index was measured for the HDPE filament and HDPE filament reinforced with GC. The viscosity curves for the neat HDPE and the composite filament were determined. The reinforced HDPE filament was characterized by slightly lower flow parameters; however, the difference between the results was insignificant for material processing. The maximum feed rate of the prepared filament for the FDM 3D printing process was evaluated by mathematical modeling. The results show that both the prepared materials have a similar printing capability as commonly used PLA, only the composite filament should have a 1.4% lower feed rate than the neat HDPE.

PL

Przedstawiona praca dotyczy wstępnych badań nad polietylenem wysokiej gęstości (HDPE) zbrojonym cząstkami węgla szklistego (GC). Przeprowadzone badania skupiały się wokół struktury oraz właściwości przetwórczych uzyskanego kompozytu. Próbki zostały wytworzone z wytłoczonego filamentu HDPE zawierającego węgiel szklisty. Granulat do wytłaczania został przygotowany poprzez osadzanie cząstek GC na powierzchni granul HDPE w alkoholu etylowym, a następnie po wysuszeniu wytłoczony w postaci filamentu o średnicy ok. 1,6 mm. Przygotowany filament został poddany regranulacji, a następnie poddany obserwacji na mikroskopie świetlnym. Za pomocą pomiarów gęstości oraz analizy obrazu zdjęć z mikroskopu oceniono udział węgla szklistego w osnowie HDPE. Pomiary wykazała udział objętościowy zbrojenia na poziomie 1%. Właściwości przetwórcze zostały ocenione poprzez pomiary MFI oraz wyznaczonych na ich podstawie krzywych lepkości. Kompozytowy filament wykazywał nieznacznie mniejsze płynięcie w porównaniu do bazowego tworzywa. Ostatecznie oceniono maksymalny feed rate w procesie drukowania 3D (FDM) za pomocą modeli analitycznych dla wytworzonych filamentów. Wyniki modelowania pokazują, że oba przygotowane materiały mógłby być drukowane przy podobnych prędkościach jak popularne PLA.

Słowa kluczowe

EN

HDPE; glassy carbon; composite; extrusion; 3D printing; FDM technology

PL

HDPE; węgiel szklisty; kompozyty; wytłaczanie; druk 3D; FDM

• Wydawca: Polskie Towarzystwo Materiałów Kompozytowych
• Czasopismo: Composites Theory and Practice
• Rocznik: 2020
• Tom: R. 20, nr 2
• Strony: 72--77
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Olesik Piotr

• Silesian University of Technology, Faculty of Materials Engineering, ul. Z. Krasińskiego 8, 40-019 Katowice, Poland

autor

Kozioł Mateusz

• Silesian University of Technology, Faculty of Materials Engineering, ul. Z. Krasińskiego 8, 40-019 Katowice, Poland

autor

Jała Jakub

• Silesian University of Technology, Faculty of Materials Engineering, ul. Z. Krasińskiego 8, 40-019 Katowice, Poland

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