한국분말야금학회지 Vol. 27 No. 4 (p.325-332)

고령토의 첨가가 3차원 망상 구조를 가지는 다공성 규조토-고령토 복합재의 기본 특성에 미치는 영향

The Effects of Kaolin Addition on the Properties of Reticulated Porous Diatomite-kaolin Composites
키워드 :
Reticulated porous diatomite-kaolin composite,Pore size distribution,Compressive strength

목차

Abstract
서 론
실험방법
3. 실험 결과 및 고찰
4. 결 론
References

초록

In this study, the effects of kaolin addition on the properties of reticulated porous diatomite-kaolin composites are investigated. A reticulated porous diatomite-kaolin composite is prepared using the replica template method. The microstructure and pore characteristics of the reticulated porous diatomite-kaolin composites are analyzed by controlling the PPI value (45, 60, and 80 PPI) of the polyurethane foam (which are used as the polymer template), the ball-milling time (8 and 24 h), and the amount of kaolin (0–50 wt. %). The average pore size decreases as the amount of kaolin increases in the reticulated porous diatomite-kaolin composite. As the amount of kaolin increases, it can be determined that the amount of inter-connected pore channels is reduced because the plate-shaped kaolin particles connect the gaps between irregular diatomite particles. Consequently, a higher kaolin percentage affects the overall mechanical properties by improving the pore channel connectivity. The effect of kaolin addition on the basic properties of the reticulated porous diatomite-kaolin composite is further discussed with characterization data such as pore size distribution, scanning electron microscopy images, and compressive strength.