模型E-玻璃纤维复合材料的性能,其矩阵单体比率有所变化
Abdulrahman Alshabib1, Nikolaos Silikas2, David C Watts2
1Department of Restorative Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
概括
使用Bis-EMA/UDMA单体的新纤维增强复合材料 (FRC) 与传统的基于Bis-GMA的FRC相比,显示出更好的水解稳定性和机械性能. 这些发现表明了增强牙修复材料的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物材料工程 生物材料工程
背景情况:
- 纤维增强复合材料 (FRC) 广泛用于牙科修复.
- 传统的FRC矩阵通常使用基于Bis-GMA的单体,这些单体可能容易发生水解降解.
- 探索像Bis-EMA/UDMA这样的替代单体系统对于提高FRC耐用性至关重要.
研究的目的:
- 为了评估FRC与Bis-EMA/UDMA单体和一致的分散相的特性.
- 为了比较这些实验FRC与使用常规单体的对照组的性能.
- 评估与牙科应用相关的关键机械和物理性能.
主要方法:
- 复合材料的配方包括不同比例的Bis-EMA/UDMA单体和Bis-GMA.
- 对照组 (A) 使用了标准 Bis-GMA/TEGDMA/PMMA 混合物.
- 测量的属性包括屈曲强度 (FS),断裂性 (KIC),水吸附 (SP),溶解度 (SL) 和湿透膨胀 (HE).
- 统计分析包括双向ANOVA和Tukey后期试验.
主要成果:
- 与对照组相比,具有较高Bis-EMA含量 (B组和C组) 的FRC显著改善了水吸附和湿透扩张.
- 在大多数群体中,屈曲强度和骨折性随着时间的推移逐渐下降,但在具有较高Bis-EMA的群体中,这种情况更小.
- 对照组具有更高的溶解度,尽管所有组都保持在允许的最大值以下.
结论:
- 使用Bis-EMA/UDMA的复合材料表现出增强的水解稳定性和改善与水有关的特性.
- 这些修改后的FRC显示出作为替代矩阵材料的潜力,用于改善牙科修复的长期性能.
- 对这些基于Bis-EMA/UDMA的FRC进行进一步的研究可能会导致更耐用的牙科材料.
关键词:
乙氧化双醇-A-二甲基甲基酸.增强纤维的增强纤维是什么柔性强度 柔性强度是指柔性强度是指柔性的强度.断裂性 断裂性 断裂性宏观膨胀是指高度的膨胀.树脂复合材料 树脂复合材料UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA UDMA更多相关视频
09:38Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
Published on: November 7, 2016
8.8K
09:41Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes
Published on: May 17, 2018
13.5K
相关概念视频
Fiber Reinforced Concrete
80
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
80
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
269
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
269
Bending of Members Made of Several Materials
154
In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each...
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each...
154
