화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.15, No.7, 808-813, November, 2004
Export Citation
실리카 나노 필러가 분산된 치아수복용 고분자 복합체의 치과적 물성에 관한 연구
Dental Properties of Silica Nanofiller Dispersed Polymeric Dental Restorative Materials
김오영†, 한상혁, 공명선1
  • 단국대학교 공과대학 공학부 고분자공학전공, 서울 140-714
  • 1단국대학교 첨단과학대학 화학전공, 충남 330-714
Ohyoung Kim†, Sanghyuk Han, and Myoung-Seon Gong1
  • Department of Polymer Science & Engineering, Dankook University, Seoul 140-714, Korea
  • 1Department of Chemistry, Dankook University, Cheonan, Chungnam 330-714, Korea
E-mail:
초록
전치부는 물론 구치부 수복에 적용 가능하도록 실리카계 나노 필러가 분산된 치아수복용 고분자 복합체(polymeric dental restorative materials, PDRM)를 제조하고 이들의 치과적 물성을 고찰하였다. PDRM 제조용 필러로는 평균 입경이 1 μm인 바륨 실리케이트와 40 nm 및 7 nm 크기의 fumed 실리카를 혼성화시켜 사용하였다. Bisphenol A glycerolate methacrylate와 triethyleneglycol dimethacrylate (60/40 wt%)으로 구성되는 resin matrix와의 혼화성 증가를 위해 필러는 실란으로 표면을 소수성으로 처리하여 사용하였으며 광중합에 필요한 광개시제는 camphorquinone을, 광증감제는 2-(dimethylamino)ethyl methacrylate을 사용하였다. 제조된 PDRM의 치과적 물성은 중합전환률, 중합깊이, 그리고 기계적 물성을 측정하여 분석하였다.
Silica nanofiller dispersed polymeric dental restorative materials (PDRM) were designed to be useful for anterior and posterior restoration. Three component hybrid-filler composed of barium silicate (avg. dia.: 1 μm) and fumed silica (avg. dia: 40 and 7 nm) was adopted as a filler system. To improve the interfacial behavior with the resin matrix of bisphenol A glycerolate methacrylate/triethyleneglycol dimethacrylate (60/40 wt%), filler's surface was hydrophobically treated with a functional silane coupling agent. A visible light system of camphorquinone photo-initiator and 2-(dimethylamino)ethyl methacrylate photo-accelerator was utilized to activate the resin matrix in the polymer composites. Dental properties of PDRM prepared herein were investigated by measuring the degree of conversion, depth of cure, and mechanical strength.
Keywords:silica;nanofiller;dental;restorative;camphorquinone
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