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논문 기본 정보

자료유형
학술저널
저자정보
Jin Hyung Lee (Korea Institute of Ceramic Engineering and Technology) Ji Yeon Park (Korea Institute of Ceramic Engineering and Technology) Jinyoung Chun (Korea Institute of Ceramic Engineering and Technology) Byoung Seung Jeon (Korea Institute of Ceramic Engineering and Technology) Hye Sun Lee (Korea Institute of Ceramic Engineering and Technology) Byoung-In Sang (독립연구자)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research Vol.24 No.6
발행연도
2023.12
수록면
1,066 - 1,070 (5page)

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Rice husks are a renewable source of silicon because of their high silica content. In this study, hydrophobic spherical silicaparticles, which are widely used in several industries, were synthesized using rice husk-derived silica. Silica was extracted assodium silicate using a one-pot alkali hydrothermal treatment and ball milling equipment. Spherical particles of silica weresynthesized by the precipitation of sodium silicate using acetic acid and a polyethylene glycol additive; subsequently theywere modified with triethoxyvinylsilane to obtain hydrophobic silica particles. The presence of C-H on the surface of the silicaparticles was confirmed by Fourier-transform infrared spectroscopy, which revealed the hydrophobicity of the particles. The contact angle of the modified spherical silica particles was 159°, whereas that of the unmodified silica particles was 0°. The hydrophobicity was confirmed by dispersing the particles in water. This study thus demonstrated that rice husk-derivedsilica can serve as an alternative to chemically derived silica; moreover, the material can be integrated into existing silicaprocesses and used as a polymer filler.

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