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基于W-PETG的3D打印复合材料的制造过程和颗粒分散特征用于医疗辐射屏蔽
1Department of Biomedical Engineering, School of Medicine, Keimyung University, 1095 Dalgubeol-daero, Daegu 42601, Republic of Korea.
Polymers
|January 28, 2026
概括
输入的PETG复合材料显示为3D打印的医疗辐射屏蔽有前途. 优化制造温度可以增强颗粒的分散,并改善定制设备的屏蔽性能.
科学领域:
- 材料科学 材料科学 材料科学
- 医学物理 医学物理
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 医疗辐射屏蔽对于患者和医护人员的安全至关重要.
- 传统的屏蔽材料,如 (Pb) 是重的,缺乏设计灵活性.
- 需要先进,可定制和轻量级的辐射屏蔽解决方案.
研究的目的:
- 设计和制造用于医疗辐射屏蔽的 - 聚乙烯二甲酸甘醇 (W-PETG) 复合物.
- 为了评估3D打印W-PETG注射器护罩的屏蔽性能和颗粒分散特性.
- 调查处理参数对屏蔽效率的影响.
主要方法:
- 粉被纳入PETG聚合物矩阵中,以创建W-PETG细丝 (高达70%重量%).
- 化沉积建模 (FDM) 用于3D打印10毫升注射器的3.0毫米厚的辐射屏蔽盖.
- 用99mTc源在不同距离评估屏蔽性能,将W-PETG与传统的屏蔽进行比较.
主要成果:
- 3.0毫米的W-PETG屏蔽实现了70.67%77.57%的效率,而1.0毫米的Pb屏蔽实现了92.24%95.13%.
- 160°C以上的加工温度减少了颗粒的聚合,导致更均的分散和更好的屏蔽.
- 屏蔽效率增加了大约5.48个百分点,加工温度更高.
结论:
- W-PETG复合材料为3D打印的医疗辐射屏蔽提供了一种轻量级和几何灵活的替代方案.
- 该研究量化地证明了光纤制造,颗粒分散和屏蔽性能之间的关系.
- 这些复合材料显示出在医疗应用中开发定制辐射屏蔽设备的巨大潜力.
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