Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Dispersion Stability and Mechanical Properties of ZrO2/High-temp Composite Resins by Nano- and Micro-particle Ratio for Stereolithography 3D Printing

나노 및 마이크로 입자 비율에 따른 광조형 3D 프린팅용 ZrO2/High-temp 복합 수지의 분산 안정성 및 기계적 특성

  • Song, Se Yeon (Energy Storage Materials Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Park, Min Soo (Department of Mechanical System and Design Engineering, Seoul National University of Science and Technology) ;
  • Yun, Ji Sun (Energy Storage Materials Division, Korea Institute of Ceramic Engineering and Technology)
  • 송세연 (한국세라믹기술원 에너지저장소재센터) ;
  • 박민수 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 윤지선 (한국세라믹기술원 에너지저장소재센터)
  • Received : 2019.02.23
  • Accepted : 2019.03.18
  • Published : 2019.04.27
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Abstract

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 $ZrO_2$ 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 $ZrO_2$ particles are observed by FE-TEM and FT-IR. The rheological properties of VTES-coated $ZrO_2/High-temp$ 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 $ZrO_2$ 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.

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References

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