各种功能性单体反应对聚乙乙基表面特征和结合性能的影响
Huei-Yu Huang1,2, Sheng-Wei Feng2, Kuan-Yu Chiang3
1Department of Dentistry, Taipei Medical University Shuang Ho Hospital, New Taipei City, Taiwan.
Journal of prosthodontic research
|August 13, 2023
概括
化学原料增强了聚乙基 (PEEK) 与牙科水泥的结合. 使用尿二甲酸盐 (UDMA) 和甲基甲酸盐 (MMA) 的原料提供优越的结合强度和耐久性.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 牙科材料 牙科材料
背景情况:
- 聚乙基 (PEEK) 为牙科应用提供了出色的机械性能,生物相容性和美学特性.
- 在牙科中使用PEEK的一个显著限制是它与其他材料的粘合性能不足.
- 改善PEEK的表面特性对于增强牙科修复至关重要.
研究的目的:
- 通过使用各种功能性单体或聚合物的原料来研究PEEK的表面变化.
- 评估这些化学处理对PEEK表面性能的影响.
- 为了评估PEEK在化后对牙科水泥的粘合性能.
主要方法:
- 使用牙磨削和氧化喷射来准备PEEK样品.
- 样品用含有不同功能单体或聚合物的原料进行处理.
- 使用显微镜和光谱仪进行了表面分析.
- 使用通用测试机器,对牙科水泥的剪接强度 (SBS) 进行了测试,有或没有热循环,使用通用测试机.
主要成果:
- 化学原料成功地将功能性单体/聚合物与PEEK表面结合在一起,增加了水友性和表面自由能量.
- 在热循环之前,含甲三烯酸的原料产生了最高的SBS (13.89 MPa).
- 含有尿二甲酸盐 (UDMA) 和甲基甲酸盐 (MMA) (HC组) 的原料在热循环后显示出最高的SBS和最低的减少 (25.51%).
- 所有测试组都符合ISO10477标准 (5MPa),HC组在热循环后显示出主要的凝聚力失败.
结论:
- 化学原料显著提高了PEEK和牙科水泥之间的剪接强度.
- 一种含有UDMA和MMA的原料配方为PEEK在牙科应用中提供了优质和持久的粘合.
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