| 초록 |
For ceramic 3D printing, Stereolithography (SLA) enables more precise fabrication of ceramic suspensions than other 3D printing methods. For densely-packed ceramic based 3D materials, the dispersion stability of ceramic particles in suspensions is important. As a simple method to improve dispersion stability in polymer matrix, surface modification of inorganic nanoparticles is widely used. The silane coupling agent which is a useful surface modifier has two functional groups, an inorganic group generates hydrolysis and forms a silane-functionalized surface in inorganic materials, and an organic group improves dispersion stability by forming the interpenetrating networks (IPNs). In this work, we modified several types of ceramic nanoparticles (NPs) with a Vinyltriethoxysilane (VTES) and prepare ceramic nanoparticle reinforced nanocomposites. The enhanced dispersity was quantitatively evaluated using rheological methods, dynamic light scattering, and morphology observation. |
