Effect of adding spherical silica filler on physico-mechanical properties of resin modified glass-ionomer cement.
Effect of adding spherical silica filler on physico-mechanical properties of resin modified glass-ionomer cement.
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添加球形二氧化硅填料对树脂改性玻璃离子水门汀物理机械性能的影响
DOI：
10.4012/dmj.23.146
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发表时间：
2004
影响因子：
2.5
通讯作者：
Kazuomi Suzuki
中科院分区：
文献类型：
--
作者：
Rosalina Tjandrawinata;M. Irie;Y. Yoshida;Kazuomi Suzuki
本文研究了球形二氧化硅填料对树脂改性玻璃离子水门汀（RMGIC）物理力学性能的影响。通过将未处理的（UF）或硅烷化的（SF）球形二氧化硅填料混合到商业制备的RMGIC的粉末中来制造样品。原始RMGIC和含有20重量%球形二氧化硅填料的制剂也被检查关于其断裂表面和氟化物释放。填料的抗压强度显着增加：高达17%的情况下SF和9%的情况下UF。UF和SF都增加了高达17%的弯曲强度。SF的加入使吸水率提高到38%，但UF使吸水率降低。SF的加入改善了RMGIC的加工性能和力学性能。
This study investigated the effects of spherical silica fillers on the physical and mechanical properties of resin-modified glass-ionomer cement (RMGIC). Specimens were fabricated by mixing untreated (UF) or silanized (SF) spherical silica filler into the powder of a commercially prepared RMGIC. The original RMGIC and a preparation containing 20 wt% spherical silica filler were also examined with regard to their fractured surface and fluoride release. The fillers increased the compressive strength remarkably: up to 17% in the case of SF and 9% in the case of UF. Both UF and SF increased the flexural strength by up to 17%. The addition of SF increased the DTS up to 38%, but UF decreased the DTS. The addition of SF improved the workability and the mechanical properties of the RMGIC.