Novel luminescent PLA/MgAl2O4:Sm3+ composite filaments for 3D printing application
| Autor: | Yuranan Hanlumyuang, Nollapan Nootsuwan, Kankavee Sukthavorn, Thanawat Rimpongpisarn, Chatchai Veranitisagul, Worawat Wattanathana, Apirat Laobuthee |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering Composite number Phosphor 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound Differential scanning calorimetry Polylactic acid chemistry Chemical engineering Mechanics of Materials law Triethoxysilane Surface modification General Materials Science Crystallization 0210 nano-technology Luminescence |
| Zdroj: | Materials Letters. 237:270-273 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2018.11.066 |
| Popis: | In this work, luminescent bioplastic composite filaments for 3D printing were fabricated from polylactic acid (PLA) and samarium doped magnesium aluminate phosphor (MgAl2O4:Sm3+). The phosphor was prepared by a metal-complex decomposition method. The obtained powder was then modified by 3-aminopropyl triethoxysilane to improve compatibility with PLA matrix. Untreated and treated phosphors exhibited characteristic photoluminescent (PL) peaks of Sm3+ ion. Composite filaments of PLA with different amounts of phosphors (0, 1, 2, 3 and 4 phr) were produced by an extrusion process. Differential scanning calorimetry (DSC) scans have revealed that the phosphor fillers lowered glass-transition (Tg), crystallization (Tc), and melting (Tm) temperatures of the PLA. PL measurements have shown luminescent properties of 3D printed samples resembling those of phosphor powders. Luminescent intensity was increased with the increasing ratio of phosphors. The phosphors not only developed luminescence but also strengthened mechanical properties of the composites. Furthermore, surface modification was able to improve the mechanical properties of the composite filaments as evident in a series of mechanical tests. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect