| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.459 |
| 발표분야 | 의료용 고분자 부문위원회 |
| 제목 | Preparation and characterization of acrylic bone cement with poly(mehtylmethacrylate)/montmorillonite nanocomposite beads |
| 초록 | Polymer/montmorillonite nanocomposite have been studied extensively because these composite are more effectively reinforced than conventional ones by adding a small amount. In this study, Poly(methyl methacrylate)/montmorillonite nanocomposites were incorporated into acrylic bone cement in order to improve the mechanical properties and reduce the exotherm of acrylic bone cement. The nanocomposites were prepared using a suspension polymerization and characterized by scanning electron microscope, gel permeation chromatography, particle analyzer and electron dispersive spectroscopy. The acrylic bone cements with poly(methyl methacrylate)/montmorillonite nanocomposites were prepared by the hand-mixing and their thermal and mechanical properties were characterized. The maximum setting temperature of the acrylic bone cements decreased from 98 ℃ to 81～87 ℃. The mechanical strengths and moduli of the acrylic bone cement with 0.1 wt% MMT were increased, compared to that without MMT. However, the mechanical properties were generally decreased with increasing incorporated MMT amounts. The fractured surfaces of polymerized bone cement were observed by SEM. It is presumably due to the bubbles in nanocomposite beads generated during polymerization. Figure 1) The maximum temperature of bone cements with the different contents of organophilic MMT. |
| 저자 | 임진숙1, 손은희1, 황성주1, 이성재2, 김정구2, 김승수3 |
| 소속 | 1충남대, 2인제대, 3한국화학(연) |
| 키워드 | acrylic bone cement; montmorillonite; nanocomposite |
