表面处理对聚乙烯基和复合树脂和聚甲酸之间的粘附强度的影响
Yongcheng Ge1, Ting Zhao2, Sizheng Fan1
1Department of Geriatric Stomatology, Hospital of Stomatology, Jilin University, Changchun, 130021, China.
BMC oral health
|June 7, 2025
概括
使用酸 (NaBH4) 和硫酸 (H2SO4) 的表面处理显著改善了聚乙烯基 (PEEK) 和牙树脂之间的结合强度. 顺序应用NaBH4和H2SO4产生了最强,最耐用的PEEK粘合剂,符合生物相容性标准.
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料 牙科材料
- 表面化学 表面化学
背景情况:
- 聚乙烯 (PEEK) 是一种用于牙科应用的高性能聚合物.
- 改善PEEK和牙科树脂 (复合树脂和PMMA) 之间的结合强度对于长期修复至关重要.
- 现有的PEEK表面处理方法在增强粘附性方面存在局限性.
研究的目的:
- 为了评估缩硫酸 (H2SO4),博化物 (NaBH4) 和它们的组合在PEEK表面的有效性.
- 确定这些处理对PEEK和复合树脂/PMMA之间的剪接强度 (SBS) 的影响.
- 评估经过处理的PEEK表面的化学和形态变化,机械性能和生物相容性.
主要方法:
- PEEK标本用NaBH4,H2SO4或其连续组合进行处理.
- 切割键强度 (SBS) 测量了原始,经过处理和老化的标本.
- 分析了表面形态 (SEM),化学修饰 (XPS,ATR-FTIR),机械强度 (三点曲) 和细胞毒性 (CCK-8,DAPI).
主要成果:
- NaBH4产生了纤维表面,H2SO4产生了毛孔,连续处理产生了密集的,透的毛孔.
- XPS证实NaBH4降低了碳基到基;ATR-FTIR显示了西兰接种.
- 两种NaBH4和H2SO4治疗都显著增加了SBS. 连续的NaBH4/H2SO4处理提供了最高的SBS,即使在老化后,也符合生物相容性标准.
结论:
- NaBH4引入化学键,而H2SO4增强了PEEK表面上的微机械互锁.
- 通过顺序NaBH4和H2SO4处理的联合物理化学修饰显著加强PEEK对复合树脂和PMMA的粘附性.
- 这些优化的表面处理为持久的基于PEEK的牙科修复提供了有希望的策略.
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