偷看
材料科学
芴
极限抗拉强度
乙醚
酮
芳基
聚合物
高分子化学
复合材料
有机化学
化学
烷基
作者
Yang Yang,Bo Jiang,Yingshuang Shang,Qingshan Xu,Junjie He,Xuefeng Li,Haibo Zhang
出处
期刊:Polymer
[Elsevier]
日期:2023-12-01
卷期号:289: 126497-126497
被引量:1
标识
DOI:10.1016/j.polymer.2023.126497
摘要
The limited diffusion and entanglement of the chains between beads cause pronounced anisotropy in the mechanical properties of 3D printed parts. Therefore, amorphous poly (aryl ether ketone) (aPAEK) containing fluorene groups with high intrinsic strength and good interfacial fusion is synthesized and employed to improve the interlayer adhesion of poly (ether ether ketone) (PEEK) parts. Herein, we designed an aPAEK with high intrinsic strength and good interfacial fusion with PEEK blends. The tensile strength of 30 mol% fluorene groups aPAEK was improved to 75 MPa, and the interlayer strength of 20 wt% blends was increased by 315 % compared to PEEK. Moreover, the selection of an appropriate molecular weight for aPAEK is crucial in maintaining the elevated tensile strength while promoting interlayer diffusion during the printing process. These results highlight a novel strategy for the design and development of blend polymers for interlayer reinforcement in 3D printing applications.
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