Cited by 155Additive Manufacturing and 3D Printing TechnologiesPolymer crystallization and propertiesInjection Molding Process and Properties

Effects of crystallinity control on mechanical properties of 3D-printed short-carbon-fiber-reinforced polyether ether ketone composites

Open access
Yang, Dong, Cao, Yi, Zhang, Zhikun, Yin, Yifa, Li, Dichen·2021·Polymer Testing

Abstract

A change in the crystallinity of short-carbon-fiber-reinforced polyether ether ketone (CF/PEEK) composites has a significant effect on the shrinkage deformation characteristics and mechanical properties of the components that are fabricated using 3D printing of CF/PEEK composites. In this study, we propose a novel process for controlling the crystallinity of 3D-printed CF/PEEK composites. First, components of a CF/PEEK composite with low crystallinity and warping deformation were 3D printed at a normal ambient temperature (20 °C). Second, the crystallinity and mechanical properties of the composite were quantitatively controlled via a recrystallization process. Finally, the mechanical properties of the CF/PEEK composite (10 wt%) were found to be similar to those of the materials fabricated via the injection molding process. This research work is of positive significance to promote the application of 3D printed PEEK composite materials in the field of aerospace and orthopedic implants.

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Crossref · 10.1016/j.polymertesting.2021.107149

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  • Adding chopped carbon fiber can simplify the printing process by forming a more uniform heat distribution and reducing warpage caused by thermal stresses.

    “and simplify the printing process by forming a more uniform heat distribution in the part while printing, reducing the probability of warpage caused by thermal stresses [188].”

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Authors
Yang, D., Cao, Y., Zhang, Z., Yin, Y., & Li, D.
Affiliations
Xi'an Jiaotong University (CN)
Corresponding author
Cao, Yi
Venue
Polymer Testing
Publisher
Elsevier BV
Published
2021-05
Volume
97
Pages
107149
ISSN
0142-9418 (ISSN-L)
OpenAlex
W3138080596
Cited by
155
References
37
Citations by year
2026: 22 · 2025: 42 · 2024: 40 · 2023: 27 · 2022: 19 · 2021: 5
FWCI
7.39
Type
journal article
Language
en
Open access
Locations
  • Polymer Testing (publishedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China
Topics
  • Physical Sciences › Engineering › Automotive Engineering › Additive Manufacturing and 3D Printing Technologies
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
  • Physical Sciences › Engineering › Mechanical Engineering › Injection Molding Process and Properties
Keywords
crystallinity control, 3D printing, shrinkage deformation, warpage, recrystallization, mechanical properties, fiber-reinforced polymer, aerospace applications, orthopedic implants

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