Effect of heat treatment on the tensile properties of incrementally processed modified polylactide/Wplyw obrobki cieplnej na wlasciwosci mechaniczne przy rozciaganiu modyfikowanego polilaktydu przetwarzanego przyrostowo

The influence of temperature (80, 95 and 110[degrees]C) and annealing time (20, 25, 30 min) on the tensile strength and elongation at break of the modified polylactide (PLA Pro) processed by 3D printing (FFF--Fused Filament Fabrication) was investigated. The properties of PLA Pro were compared with...

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Bibliographic Details
Published inPolimery Vol. 66; no. 6; p. 357
Main Authors Kozik, Bogdan, Debski, Mariusz, Bak, Piotr, Gontarz, Malgorzata, Zaborniak, Malgorzata
Format Journal Article
LanguageEnglish
Published Industrial Chemistry Research Institute 01.06.2021
Subjects
3D printing
Annealing
Comparative analysis
Mechanical properties
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Summary:The influence of temperature (80, 95 and 110[degrees]C) and annealing time (20, 25, 30 min) on the tensile strength and elongation at break of the modified polylactide (PLA Pro) processed by 3D printing (FFF--Fused Filament Fabrication) was investigated. The properties of PLA Pro were compared with properties of unmodified PLA and ABS. It was observed that the tensile strength was comparable for all annealed samples and was about 45 MPa. Moreover, the annealing process decreased the tensile strength of the modified PLA and increased the elongation at break, which may be related to a change in the degree of crystallinity. The modified PLA was characterized by tensile properties similar to ABS. Keywords: polylactide, heat treatment, tensile properties, additive manufacturing. Zbadano wplyw temperatury (80, 95 i 110[degrees]C) i czasu wygrzewania (20, 25, 30 min) na wytrzymalosc na rozciaganie i wydluzenie wzgledne przy zerwaniu modyfikowanego polilaktydu (PLA Pro) przetwarzanego metoda druku 3D (FFF--Fused Filament Fabrication). Wlasciwosci PLA Pro porownano z wlasciwosciami niemodyfikowanego PLA i ABS. Zaobserwowano, ze wytrzymalosc na rozciaganie byla porownywalna dla wszystkich probek i wynosila okolo 45 MPa. Ponadto, proces wygrzewania spowodowal zmniejszenie wytrzymalosci na rozci?ganie modyfikowanego PLA i zwiekszyl wydluzenie przy zerwaniu, co moze byc zwiazane ze zmiana stopnia krystalicznosci. Modyfikowany PLA charakteryzowal sie wlasciwosciami mechanicznymi przy rozciaganiu podobnymi do ABS. Slowa kluczowe: polilaktyd, obrobka cieplna, wlasciwosci mechaniczne przy rozciaganiu, technologie przyrostowe.
ISSN:0032-2725