Development of high performance of silane coupling agents by nano-technology.

利用纳米技术开发高性能硅烷偶联剂。

• 批准号: 18592090
• 负责人: SHIRAI Kenichi
• 金额: $ 2.5万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18592090/
• 关键词: silane coupling agent; XPS; silanol group; filler

Dental composite contains three different phases, matrix, silane coupling and filler, Their structures and mechanical properties of each phase mainly have an impact on transformation and destructive behavior. We have established pre-silanization decontamination method at previous year that increased adsorption of silane coupling agent on filler surface. The aim of this study is to determine experimental composites produced following pre-silanization decontamination of filler using a Vickers hardness method and a diametral tensile strength after thermo-cycling.Measurement of the diametral tensile strength revealed that the immediate (no thermo-cycling) diametral tensile strength of the filler-decontaminated composite (43.1 ± 4.2 MPa) was not significantly different (p<0.05) from that of the control composite (40.9 ± 6.2 MPa). However, thermo-cycling for 10,000 cycles resulted in diametral tensile strength of 38.5 ± 4.2 MPa for the experimental composite, which were significantly higher than those of the thermo-cycled control material, being 28.8 ± 4.0 MPa.This presilanization decontamination methodology improved directly the physico-mechanical properties of composites thanks to improved and more hydrolysis-resistant filler-matrix coupling.

牙科复合材料包含基体、硅烷偶联剂和填料三种不同的相，其结构和力学性能主要影响各相的转变和破坏行为。我们在去年建立了预硅烷化去污方法，增加了硅烷偶联剂在填料表面的吸附。本研究的目的是使用维氏硬度法和热循环后的径向拉伸强度来确定在对填料进行预硅烷化去污之后产生的实验复合材料。（无热循环）填料-去污复合材料的径向拉伸强度（43.1 ± 4.2 MPa）与对照复合材料（40.9 ± 6.2 MPa）无显著差异（p<0.05）。然而，10，000次循环的热循环导致实验复合材料的径向拉伸强度为38.5 ± 4.2 MPa，其显著高于热循环对照材料的径向拉伸强度，为28.8 ± 4.0 MPa。由于改进的和更耐水解的填料-基质偶联，这种预硅烷化去污方法直接改善了复合材料的物理机械性能。

项目成果

Analysis of chemical interaction of 4-MET with hydroxyapatite using XPS

• DOI: 10.4012/dmj.25.645
• 发表时间: 2006-12-01
• 期刊: DENTAL MATERIALS JOURNAL
• 影响因子: 2.5
• 作者: Nagakane, Kouji;Yoshida, Yasuhiro;Okazaki, Masayuki
• 通讯作者: Okazaki, Masayuki

Immobilization of simulated reducing agent at the surface of SiO_2 fillers in dental composite resins

模拟还原剂在牙科复合树脂中SiO_2填料表面的固定化

• 发表时间: 2007
• 期刊: Dent. Mater. J. 24(4)
• 作者: Yuan Y;Shimada Y;Ichinose S;Tagami J.;J. De Munck;S. Shibata
• 通讯作者: S. Shibata

Munck, Microrotary fatigue resistance of a HEMA-free all-in-one adhesive bonded to dentin

Munck，一种与牙本质粘合的不含 HEMA 的一体式粘合剂的抗微旋转疲劳性

• 发表时间: 2007
• 期刊: J. Adhes. Dent 9(4)
• 作者: J.;De
• 通讯作者: De

Microrotary fatigue resistance of a HEMA-free all-in-one adhesive bonded to dentin.

与牙本质粘合的不含 HEMA 的一体式粘合剂的抗微旋转疲劳性。

• 发表时间: 2007
• 期刊: J. Adhes. Dent. 9(4)
• 作者: Yuan Y;Shimada Y;Ichinose S;Tagami J.;J. De Munck
• 通讯作者: J. De Munck

mmobilization of simulated reducing agent at the surface of SiO_2 fillers in dental composite resins

模拟还原剂在牙科复合树脂中SiO_2填料表面的固定化

• 发表时间: 2007
• 期刊: Dent. Mater. J. 24(4)
• 作者: S.;Shibata;S. Shibata
• 通讯作者: S. Shibata