Effect of mutual stabilization of polyetheretherketone and thermotropic liquid crystal polymers in polymer composites based on then for 3D printing

Gurov D.A., Tsapenko A.N., Pavlukovich N.G.
UDC
678.8
DOI
10.18577/2307-6046-2024-0-8-3-18
Article PDF (Russian) (2.43 MB)
How to cite
Gurov D.A., Tsapenko A.N., Pavlukovich N.G. Effect of mutual stabilization of polyetheretherketone and thermotropic liquid crystal polymers in polymer composites based on then for 3D printing // Proceedings of VIAM. 2024. No. 8. DOI: 10.18577/2307-6046-2024-0-8-3-18. URL: https://test.viam.ru/en/journal/2024/8/1
Keywords
additive technologies, fused deposition modeling, polyetheretherketone, semi-crystalline polymer, thermotropic liquid crystal polymers, stabilization, warpage
Abstract

The effects of mutual diffusion, expressed in the nature of the temperature dependences of viscosity and other thermophysical characteristics of the melt of a filament based on polyetheretherketone (PEEK) and liquid crystal polymers (LCP), including depending on the printing speed and the content of the LC phase, are considered and substantiated. Relaxation transitions inside the fiber itself and the film obtained from it by 3D printing are characterized. It has been shown that the introduction of LCP into a thermoplastic matrix based on PEEK can stabilize the viscous behavior of the melt of a thread during its solidification.

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