A novel sustainable luminescent ABS composite material for 3D printing

The development of 3D printing composites with good photoluminescence and mechanical properties is a necessary condition for its practical application. Here, the long persistent phosphors Sr2MgSi2O7: Eu2+, Dy3+ were modified with 3-aminopropyltriethoxysilane(KH550), and the phosphors were grafted with ABS with peptide condensation reagent 0-(7-Azabenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate(HATU). The effects of phosphors on their photoluminescence and mechanical properties were evaluated. The structure and morphology of the phosphor were determined by X-ray diffraction and scanning electron microscopy, and the successful grafting of the phosphor with ABS was verified by Fourier transform infrared spectroscopy. The optical properties of the composites were evaluated by fluorescence spectroscopy and afterglow decay curve, and the mechanical properties were determined by tensile test. The results show that the luminescence properties and tensile strength of ABS are greatly enhanced with the increase of phosphor content. When 3 wt% grafted phosphor is doped, the luminescence strength, tensile load and tensile strength reach the maximum.