Improvement of the layer-layer adhesion in FFF 3D printed PEEK/carbon fibre composites

Krzysztof Rodzen; Eileen Harkin-Jones; Marcin Wegrzyn; Pratikshya Sharma; Alexander Zhigunov

doi:10.1016/j.compositesa.2021.106532

Improvement of the layer-layer adhesion in FFF 3D printed PEEK/carbon fibre composites

Krzysztof Rodzen, Eileen Harkin-Jones, Marcin Wegrzyn, Pratikshya Sharma, Alexander Zhigunov

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Abstract

Improvement of the mechanical properties of FFF 3D printed CF/PEEK composites was achieved by printing under favorable crystallization conditions. It was possible to improve the layer-layer tensile strength more than fivefold from 6.96 MPa to 36.28 MPa by printing in a specially customised, low cost printer operated with a heated print chamber at 230℃. The influence of the chamber temperature on the mechanical and crystalline structure was investigated to determine the best conditions. A maximum flexural modulus of 14 946 MPa and flexural stress at break of 248.9 MPa were achieved. A proof of concept study involved the 3DP of a CF/PEEK mould tooling insert for injection moulding. This insert replaced a costly traditional metal insert to print short production runs of ABS and HIPS polymers. This work offers a low cost and rapid means to produce effective tooling inserts for the injection moulding industry.

Original language	English
Article number	106532
Number of pages	11
Journal	Composites Part A: Applied Science and Manufacturing
Volume	149
Early online date	27 Jun 2021
DOIs	https://doi.org/10.1016/j.compositesa.2021.106532
Publication status	Published (in print/issue) - 1 Oct 2021

Keywords

3-D Printing
Carbon fibres
High-temperature properties
Polymer-matrix composites (PMCs)

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10.1016/j.compositesa.2021.106532

FFF_3D_printed_PEEK_carbon_fibre_composites_Apr_25_2021Author Accepted Manuscript, 1.8 MBLicence: CC BY-NC-ND

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abstract = "Improvement of the mechanical properties of FFF 3D printed CF/PEEK composites was achieved by printing under favorable crystallization conditions. It was possible to improve the layer-layer tensile strength more than fivefold from 6.96 MPa to 36.28 MPa by printing in a specially customised, low cost printer operated with a heated print chamber at 230℃. The influence of the chamber temperature on the mechanical and crystalline structure was investigated to determine the best conditions. A maximum flexural modulus of 14 946 MPa and flexural stress at break of 248.9 MPa were achieved. A proof of concept study involved the 3DP of a CF/PEEK mould tooling insert for injection moulding. This insert replaced a costly traditional metal insert to print short production runs of ABS and HIPS polymers. This work offers a low cost and rapid means to produce effective tooling inserts for the injection moulding industry.",

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AU - Rodzen, Krzysztof

AU - Harkin-Jones, Eileen

AU - Wegrzyn, Marcin

AU - Sharma, Pratikshya

AU - Zhigunov, Alexander

PY - 2021/10/1

Y1 - 2021/10/1

N2 - Improvement of the mechanical properties of FFF 3D printed CF/PEEK composites was achieved by printing under favorable crystallization conditions. It was possible to improve the layer-layer tensile strength more than fivefold from 6.96 MPa to 36.28 MPa by printing in a specially customised, low cost printer operated with a heated print chamber at 230℃. The influence of the chamber temperature on the mechanical and crystalline structure was investigated to determine the best conditions. A maximum flexural modulus of 14 946 MPa and flexural stress at break of 248.9 MPa were achieved. A proof of concept study involved the 3DP of a CF/PEEK mould tooling insert for injection moulding. This insert replaced a costly traditional metal insert to print short production runs of ABS and HIPS polymers. This work offers a low cost and rapid means to produce effective tooling inserts for the injection moulding industry.

AB - Improvement of the mechanical properties of FFF 3D printed CF/PEEK composites was achieved by printing under favorable crystallization conditions. It was possible to improve the layer-layer tensile strength more than fivefold from 6.96 MPa to 36.28 MPa by printing in a specially customised, low cost printer operated with a heated print chamber at 230℃. The influence of the chamber temperature on the mechanical and crystalline structure was investigated to determine the best conditions. A maximum flexural modulus of 14 946 MPa and flexural stress at break of 248.9 MPa were achieved. A proof of concept study involved the 3DP of a CF/PEEK mould tooling insert for injection moulding. This insert replaced a costly traditional metal insert to print short production runs of ABS and HIPS polymers. This work offers a low cost and rapid means to produce effective tooling inserts for the injection moulding industry.

KW - 3-D Printing

KW - Carbon fibres

KW - High-temperature properties

KW - Polymer-matrix composites (PMCs)

U2 - 10.1016/j.compositesa.2021.106532

DO - 10.1016/j.compositesa.2021.106532

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JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

M1 - 106532

ER -

Improvement of the layer-layer adhesion in FFF 3D printed PEEK/carbon fibre composites

Abstract

Keywords

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