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

0545310 - ÚMCH 2022 RIV GB eng J - Článek v odborném periodiku
Rodzeń, K. - Harkin-Jones, E. - Wegrzyn, M. - Sharma, P. K. - Zhigunov, Alexander
Improvement of the layer-layer adhesion in FFF 3D printed PEEK/carbon fibre composites.
Composites Part A-Applied Science and Manufacturing. Roč. 149, October (2021), č. článku 106532. ISSN 1359-835X. E-ISSN 1878-5840
Institucionální podpora: RVO:61389013
Klíčová slova: polymer-matrix composites (PMCs) * high-temperature properties * carbon fibres
Obor OECD: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Impakt faktor: 9.463, rok: 2021
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/pii/S1359835X21002542?via%3Dihub

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.
Trvalý link: http://hdl.handle.net/11104/0322043