TAILIEUCHUNG - Fabrication and characterization of PMMA/ZrO2 nanocomposite 3D printing filaments

The 3D printing PMMA/ZrO2 filaments with a diameter of ± mm were fabricated by using a single-screw extruder at temperatures of four heating zones of 190, 200, 210, and 210°C. Testing samples were prepared from the extruded filaments by using a fusion deposition modeling 3D printer and a Haake MiniJet piston injection molding machine. Fourier transform infrared spectroscopy, mechanical properties, field emission scanning electron microscopy (FESEM), differential scanning calorimetry, and thermogravimetric analysis of the filaments were investigated. | Cite this paper Vietnam J. Chem. 2023 61 4 461-469 Research article DOI Fabrication and characterization of PMMA ZrO2 nanocomposite 3D printing filaments Nguyen Thi Dieu Linh1 2 Khuc Duong Huy1 Nguyen Thi Kim Dung3 Ngo Xuan Luong4 Thai Hoang2 Do Quang Tham1 2 1 Graduated University of Science and Technology Vietnam Academy of Science and Technology VAST 18 Hoang Quoc Viet Cau Giay Hanoi 10072 Viet Nam 2 Insitute for Tropical Technology Vietnam Academy of Science and Technology VAST 18 Hoang Quoc Viet Cau Giay Hanoi 10072 Viet Nam 3 National Academy of Education Management 31 Phan Dinh Giot Thanh Xuan Hanoi 10000 Viet Nam 4 Hong Duc University 565 Quang Trung Dong Ve Thanh Hoa 40100 Viet Nam Submitted November 7 2022 Revised March 20 2023 Accepted April 24 2023 Abstract The 3D printing PMMA ZrO2 filaments with a diameter of mm were fabricated by using a single-screw extruder at temperatures of four heating zones of 190 200 210 and 210 C. Testing samples were prepared from the extruded filaments by using a fusion deposition modeling 3D printer and a Haake MiniJet piston injection molding machine. Fourier transform infrared spectroscopy mechanical properties field emission scanning electron microscopy FESEM differential scanning calorimetry and thermogravimetric analysis of the filaments were investigated. It was suggested the formation of physical and molecular interactions between surface hydroxyl groups of ZrO2 nanoparticles and C-O-C groups of PMMA in the PMMA ZrO2 filaments. FESEM images of the filaments indicated the good dispersion of ZrO2 nanoparticles in the PMMA matrix nevertheless there was still the formation of clusters of ZrO 2 nanoparticles in the nanocomposite filaments. The incorporation of nano ZrO2 increased the thermal properties bending and tensile moduli of PMMA. The mechanical properties of the 3D-printed samples were lower than those of the molded samples. However the bending strength of the 3D-printed samples

• Sinh học
• 3D printing filaments
• ZrO2 nanoparticle
• Fusion deposition modeling
• Mechanical properties
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• Star poly(methyl methacrylate)
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• Electron transfer
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• Quasi static mechanical