화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.29, No.1, 102-105, January, 2005
Export Citation
광중합형의 치아수복용 고분자 나노복합체의 심미 특성
Esthetic Properties of Photoinitiated Polymeric Dental Restorative Nanocomposites
김오영†, 한상혁, 김창근1
  • 단국대학교 공과대학 공학부 고분자공학전공
  • 1중앙대학교 공과대학 화학공학과
Ohyoung Kim†, Sanghyuk Han, and Chang-Keun Kim1
  • Department of Polymer Science & Engineering, Dankook University, Seoul 140-714, Korea
  • 1Department of Chemical Engineering, Chung-Ang University, Seoul 156-756, Korea
E-mail:
초록
다양한 치아 수복이 가능한 광중합형의 치아수복용 고분자 나노복합체(polymeric dental restorative nanocomposites, PDRNC)를 제조하고 이들의 심미적 물성을 고찰하였다. PDRNC 제조에 사용한 충전제는 평균 입경이 1μm인 바륨실리케이트와 40 nm 및 7 nm 크기의 나노실리카를 혼성화시켜 사용하였는데 bisphenol A glycerolate methacrylate와 triethyleneglycol dimethacrylate (60/40 wt%)으로 구성되는 기재와의 혼화성 증가를 위해 실란으로 표면을 소수성으로 처리하였다. 가시광선을 이용한 PDRNC의 광중합에 필요한 광개시제는 camphorquinone을, 광증감제는 2-(dimethylamino)ethyl methacrylate을 사용하였다. 제조된 PDRNC의 심미적 물성을 Hunter L, a, b 값으로 평가한 결과, 7nm 크기의 나노 충전제가 첨가될수록 PDRNC의 투명성이 증가되어 심미적 특성이 향상됨을 알 수 있었다.
Photoinitiated polymeric dental restorative nanocomposites (PDRNC) were designed to be useful for the variety of dental restoration. Hybrid-filler composed of barium silicate (avg. dia.:1 μm) and nano-sized 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%), the surface of the filler was hydrophobically treated with a silane coupling agent. A visible light system of camphorquinone photo-initiator and 2-(dimethylamino)ethyl methacrylate photo-accelerator was utilized to activate the PDRNC. Esthetic properties of PDRNC was investigated by measuring the Hunter L, a, b values and it was discovered that PDRNC produced in this work showed excellent esthetic properties with an increase in 7 nm nanofiller content.
Keywords:nanocomposite;nanofiller;esthetic;dental;Hunter value;photo-initiator
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