Polymer viscosity, particle coalescence and mechanical performance in high-temperature laser sintering
Polymer viscosity, particle coalescence and mechanical performance in high-temperature laser sintering
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DOI：
10.1007/s10853-016-9761-6
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发表时间：
2016-05-01
影响因子：
4.5
通讯作者：
Ghita, O. R.
中科院分区：
文献类型：
--
作者：
Berretta, S.;Wang, Y.;Ghita, O. R.
高温激光烧结 (HT-LS) 是一种增材制造技术，其潜力可能受到针对该工艺优化的材料数量有限的限制。具有不同熔体粘度值的聚醚醚酮 (PEEK) PEEK 150PF 和 PEEK 450PF 已与商业级聚醚酮 (PEK) HP3 并行使用，以研究材料粘度对 HT-LS 中制造的部件的颗粒聚结、结构和机械性能的作用。研究发现，与粘度较高的材料（PEEK 450PF 和 PEK HP3）相比，粘度较低的材料 PEEK 150PF 具有更快的聚结速度和更低的拉伸强度。
High-temperature laser sintering (HT-LS) is an additive manufacturing technology whose potential could be limited by the restricted number of materials optimised for the process. Poly ether ether ketone (PEEK) with different melt viscosity values, PEEK 150PF and PEEK 450PF, have been used in parallel with the commercial grade, poly ether ketone (PEK) HP3, to investigate the role of material viscosity on particle coalescence, structure and mechanical performance of components manufactured in HT-LS. The material with lower viscosity, PEEK 150PF, was found to exhibit faster coalescence and lower tensile strength than the grades with higher viscosities, PEEK 450PF and PEK HP3.