High Temperature Rheological Behavior and Sintering Kinetics of CF/PEEK Composites during Selective Laser Sintering
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- High Temperature Rheological Behavior and Sintering Kinetics of CF/PEEK Composites during Selective Laser Sintering
- 发表刊物：
- Composites science and technology
- 摘要：
- As a kind of high performance polymer with excellent mechanical strength, high temperature property and chemical
resistance, the polyether-ether-ketone (PEEK) and its composites are the promising candidates that can satisfy the
demands for high stiff and lightweight in aerospace industry, which makes it very attractive to fabricate these parts with
additive manufacture technology, especially the selective laser sintering (SLS), due to its advantage on the fabrication
of the parts with complex geometries and structure optimization. However, the strengths of the PEEK and its
composites prepared by SLS are obviously lower than their injection molded parts and the laser sintering kinetics of
the PEEK composites is seldom studied. In this paper, to fabricate the carbon fiber (CF) reinforced PEEK composites
with high strength by SLS, the sintering kinetics of CF/PEEK composites was thoroughly studied based on the high
temperature rheological behavior. A novel effective melting zone was defined by combining the simulated temperature
distribution with the viscosity-temperature relationship and used to predict the process planning. Finally, the calculation
results were validated by employing the simulation parameters in experiments and the tensile strength of PEEK/CF
composites reached 108.5±1.06MPa with an elasticity modulus of 7364.8±468 MPa, which is 85% higher than
injection molded pure PEEK. Therefore, methods in this work was considered as a complement to the numerical
analysis of SLS process and the reinforced CF/PEEK composites could be used in aerospace industry for the structure
optimization and lightweight design with complex geometries.
- 合写作者：
- Mengxue Yan, Xiaoyong Tian*, Gang Peng, Dichen Li, Xiaoyu Zhang
- 是否译文：
- 否
- 发表时间：
- 2018-06-22