화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.17, No.4, 403-408, August, 2006
Export Citation
소수성의 실리카 나노입자가 충진된 치아수복용 고분자 복합체 제조
Synthesis of Polymeric Dental Restorative Composite Filled with Hydrophobic Silica Nanoparticle
한상혁, 서기택, 마승재, 임상명, 김오영†
  • 단국대학교 공과대학 고분자공학전공
Sanghyuk Han, Kitaek Seo, Seung Jae Ma, Sang Myung Lim, and Ohyoung Kim†
  • Department of Polymer Science & Engineering, Dankook University, Seoul 140-714, Korea
E-mail:
초록
가시광선 중합형의 고분자계 치아수복재의 고기능화를 위해 충전제로 사용된 친수성의 실리카 나노입자 표면을 γ-methacryloxypropyltrimethoxysilane (γ-MPS) 결합제로 소수성 처리하여 치아수복용 고분자 복합체를 제조하였다. 처리된 실리카의 구조적 물성과 복합체 내에서의 분산도 및 복합체의 중합 특성 등을 실리카의 소수화도와 비교 하여 고찰하였다. 그 결과, 사용된 γ-MPS의 양이 40 wt%까지 증가함에 따라 실리카의 소수화도가 증가하였으며 그 이상에서는 큰 변화가 없었다. 또한 소수화도가 향상됨에 따라 복합체 내에서의 충전제 분산도가 양호하였으며 광중합 후 미반응 단량체는 핵자기공명 분석 결과 거의 남아 있지 않아 중합 특성이 우수함을 확인하였다.
To enhance the dental properties of polymeric dental restorative composite activated by visible-light, the surface of hydrophilic silica nanoparticle was hydrophobically treated using γ-methacryloxypropyltrimethoxysilane (γ-MPS) coupling agent. Structural properties and dispersity of silica in the composite was compared with the hydrophobicity of silica. Polymerization characteristic of the composite was also evaluated. Degree of hydrophobicity of silica nanoparticle was considerably improved with an increase of γ-MPS upto 40 wt% and converged asymptotically. Additionally, with an increase of the hydrophobicity of silica nanoparticle, the dispersity of silica was improved and the residual monomer in the composite was not detected from nuclear magnetic resonance experiment which indicated superior polymerization behavior.
Keywords:silica nanoparticle;γ-methacryloxypropyltrimethoxysilane;hydrophobicity;dental;restorative
  1. Moszner N, Salz U, Prog. Polym. Sci, 26, 535 (2001) 
  2. Eley BM, Brit. Dent. J., 183, 11 (1997)
  3. Anusavice KJ, Phillips' Science of Dental Materials, Saunders, London (1996)
  4. Elliott JE, Lovell LG, Bowman CN, Dent. Mater., 17, 221 (2001) 
  5. Kim SS, Lee JR, Lee BM, Jaegal JG, Shin BC, Comp. Mater. Korea, 15, 68 (2002)
  6. Phillips RW, Skinner 's science of dental materials, 8th ed., Igaku-Shoin/Saunders, 177 (1982)
  7. Nam YO, Park JS, Dent. Mater., 31 (1999)
  8. Kim O, Um CM, Son HH, Chun J, Polym. Sci. Technol., 12(4), 463 (2001)
  9. Kim O, Lee T, J. Korean Ind. Eng. Chem., 12(1), 65 (2001)
  10. Kim O, Han S, Seo K, Gong MS, Kim CK, Lim BS, Cho BH, J. Korean Ind. Eng. Chem., 16(3), 422 (2005)
  11. Kim O, Han S, Gong MS, J. Korean Ind. Eng. Chem., 15(7), 808 (2004)
  12. Balkenende AR, van de Boogaard HJAP, Scholten M, Willard NP, Langmuir, 14(20), 5907 (1998) 
  13. Asmussen E, Acta Odontol. Scand., 33, 337 (1975)
  14. Wolansky G, Marmur A, Colloids Surf. A: Physicochem. Eng. Asp., 156, 381 (1999) 
  15. Horr TJ, Ralston J, Smart RSC, Colloids Surf. A: Physicochem. Eng. Asp., 97, 183 (1995) 
  16. Kim S, Jang J, Kim O, Polym. Eng. Sci., 38, 1142 (1998) 
  17. Kim K, Kim C, Technical Report, Dent. Mater. Inst., Yonsei Univ., Korea (1996)