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用于化纤维制造的PEEK/PEI聚合物混合物:加工,性能和可打印性

Conor McCrickard¹, Adrian Boyd¹, Krzysztof Rodzen¹

¹School of Engineering, University of Ulster, York Street, Belfast BT15 1ED, UK.

|January 10, 2026

概括

这项研究开发了用于3D打印的聚乙乙 (PEEK) 和聚乙胺 (PEI) 混合物. 最佳的PEEK/PEI 80/20混合物显著改善了印刷能力和减少了曲面,同时保持了机械和热性能.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
添加剂制造添加剂制造添加剂制造

背景情况:

高性能聚合物如PEEK和PEI很难3D打印,原因是收缩和曲面.
聚合物混合是一种有前途的策略,可以克服这些印刷挑战.

研究的目的:

开发和鉴定聚乙烯基 (PEEK) 和聚胺 (PEI) 混合物,用于化丝制造 (FFF).
为了确定一个最佳的PEEK/PEI混合物,提高可打印性并保持机械和热完整性.

主要方法:

融挤出用于生产各种重量比的PEEK/PEI丝.
用差分扫描热量计 (DSC),机械测试,X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 进行了丝材和3D打印样品的特征.

主要成果:

所有PEEK/PEI混合物都表现出可混合性,通过DSC通过单个玻璃过渡温度表示.
PEEK/PEI 80/20混合物表现出最佳性能,保持了35%的晶度.
这种混合物实现了75.6MPa的最终抗拉强度 (UTS) 和1338MPa的扬模量,具有更好的热性能,减少曲率和增强的打印能力.

结论:

PEEK/PEI 80/20混合物为提高高性能聚合物的3D打印提供了可行的解决方案.
这种优化的混合物平衡出色的机械和热性能与增强的增材制造中的可加工性.

关键词:

通过3D打印打印3D打印.结晶性结晶性是指结晶性.机械性能机械性能机械性能聚乙烯乙烯基聚乙烯乙烯基聚乙烯胺的使用方法

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