Dispersion Stability and Mechanical Properties of ZrO2/High-temp Composite Resins by Nano- and Micro-particle Ratio for Stereolithography 3D Printing

被引:1
作者
Song, Se Yeon [1 ]
Park, Min Soo [2 ]
Yun, Ji Sun [1 ]
机构
[1] Korea Inst Ceram Engn & Technol, Energy Storage Mat Div, Jinju 52851, South Korea
[2] Seoul Natl Univ Sci & Technol, Dept Mech Syst & Design Engn, Seoul 01811, South Korea
来源
KOREAN JOURNAL OF MATERIALS RESEARCH | 2019年 / 29卷 / 04期
关键词
stereolithography; zirconia; thixotropy; silane coupling agent; dispersion stability; PARTICLE-SIZE; SUSPENSIONS; CERAMICS; DENSITY;
D O I
10.3740/MRSK.2019.29.4.221
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This study examines the role of the nano-and micro-particle ratio in dispersion stability and mechanical properties of composite resins for SLA(stereolithography) 3D printing technology. VTES(vinyltriethoxysilane)-coated ZrO2 ceramic particles with different nano-and micro-particle ratios are prepared by a hydrolysis and condensation reaction and then dispersed in commercial photopolymer (High-temp) based on interpenetrating networks(IPNs). The coating characteristics of VTES-coated ZrO2 particles are observed by FE-TEM and FT-IR. The rheological properties of VTES-coated ZrO2/High-temp composite solution with different particle ratios are investigated by rheometer, and the dispersion properties of the composite solution are confirmed by relaxation NMR and Turbiscan. The mechanical properties of 3D-printed objects are measured by a tensile test and nanoindenter. To investigate the aggregation and dispersion properties of VTES-coated ZrO2 ceramic particles with different particle ratios, we observe the cross-sectional images of 3D printed objects using FE-SEM. The 3D printed objects of the composite solution with nano-particles of 80 % demonstrate improved mechanical characteristics.
引用
收藏
页码:221 / 227
页数:7
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