仪器滑剂对复原复合材料机械性能的影响
G Pippin1, D Tantbirojn2, M Wolfgang3
1Geoffrey Pippin, DDS, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN, USA.
Operative dentistry
|July 11, 2024
概括
使用湿树脂作为仪器滑剂不会影响复合材料的处理性能. 然而,作为滑剂的通用粘合剂提高了复合材料的强度和性,使其达到单体水平.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 牙科材料 牙科材料
背景情况:
- 仪器滑剂,如湿树脂或粘合剂系统,通常用于分层复合材料,以改善处理.
- 这些滑剂对最终复合材料恢复的物理和机械性能的影响尚未完全理解.
研究的目的:
- 研究仪器滑剂 (湿树脂和通用粘合剂) 对分层复合材料的屈曲强度,刚度和表面硬度的影响.
- 为了比较带有和没有仪器滑的分层复合材料的性能,以及与单体复合材料的性能.
主要方法:
- 复合体梁是用两步制造的,接口表面是用湿树脂,通用粘合剂或没有滑剂处理的.
- 使用四点曲试验测量了曲强度和刚度.
- 在完成/抛光程序之前和之后评估了维克尔表面硬度.
主要成果:
- 通用粘合剂显著增加了曲强度和刚度,达到单立体复合材料的值.
- 湿树脂没有影响强度或刚度.
- 表面硬度最初被滑剂降低,但在完成和抛光后恢复.
- 扫描电子显微镜显示,当使用滑剂时,界面上的孔隙较少.
结论:
- 作为仪器滑剂的湿化剂在完成和抛光时不会对复合材料的物理或表面性能产生负面影响.
- 作为滑剂使用的通用粘合剂可以提高分层复合材料的强度和刚度,使其达到单一的水平.
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