The Üç Boyutlu Yazım İçin Kompozit Filamentlerin Üretimi ve Karakterizasyonu
Bu çalışmada, yoğunluk, yüzey alanı, saflık ve parçacık morfolojisi gibi farklı özelliklere sahip çeşitli nano ve mikro parçacıklar, 3D baskıda kullanılacak polimer kompozit filamentlerin üretimi için takviye parçacıkları olarak kullanılmıştır. Akrilonitril Bütadien Stiren (ABS) matris malzemesi iken, MWCNTs, SiO2, ZrB2, Al partikülleri takviye olarak kullanılmıştır. Kompozit filamentlerin üretimi ikiz vidalı bir ekstrüder kullanılarak gerçekleştirilmiştir. Üretilen kompozit filamentler Diferansiyel Taramalı Kalorimetri (DSC), Taramalı Elektron Mikroskopu (SEM), Dispersif X-ışını Spektroskopisi (EDS), çekme testi ve yüzey pürüzlülük testleri ile karakterize edilmiştir. Sonuçlar, ABS matrise mikro/nano parçacıklarının eklenmesinin, takviyesiz ABS ile karşılaştırıldığında kopma gerilmesini yaklaşık %16 oranında geliştirdiğini göstermiştir. ZrB2 ve Al mikro parçacıklarının takviye edilmesi sonucunda, katkısız ABS filamentin çekme gerinimi sırasıyla %17.8 ve %40 kadar yükselmiştir.
Production and Characterization of Composite Filaments for 3D Printing
In this study, various nano and micro particles with different properties, including density, surface area, purity and particle morphology were used as reinforcement particles for the production of polymer composite filaments to be used for 3D printing. Acrylonitrile Butadiene Styrene (ABS) was matrix material and Multi wall carbon nanotubes (MWCNTs), SiO2, ZrB2, and, Al particles were reinforcements. Production of the composite filaments was carried out by using a twin screw extruder. Produced composite filaments were characterized via Differential Scanning Calorimeter (DSC), Scanning Electron Microscope (SEM), Energy-Dispersive X-ray Spectroscopy (EDS), tensile test and surface roughness tests. Results showed that addition of micro/nano particles into ABS matrix improved the Ultimate Tensile Strength (UTS) of the composites by around 16% compared to non-reinforced one. As a result of reinforcing with micro particles, ZrB2 and Al, the tensile strain of neat-ABS filament increased by 17.8% and 40%, respectively.
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