Characterisation of carbon fibre (Cf) - Poly Ether Ketone (PEK) composite powders for laser sintering

Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication

“…Carbon fibre pre-preg tape are available to be used for autoclave processing and recently have been used in Laser Assisted Automated Tape Placement for direct manufacturing of aerospace grade parts [ 51 , 52 , 53 ]. It has been used in both SLS and FFF processes [ 32 , 54 , 55 ]. The material trade-off shows it has a high processing temperature, high viscosity, and a higher shrinkage than PEI which makes it less suitable for FFF 3D printing applications [ 33 ].…”

Recent Advances on High‐Performance Polyaryletherketone Materials for Additive Manufacturing

“…The modification of as-received PAEK powders, which mainly includes thermal conditioning, thermally induced phase separation (TIPS), addition of fillers and additives, and gasdriven and solvent exchange methods, is therefore necessary. [29,31,[51][52][53][54] Berretta et al found that the thermal conditioning of PEEK powder (PEEK 450PF and PEEK 150PF) can significantly improve the particle morphology and increase the circularity and roundness. [29,35] Thermally conditioned PEEK 150PF showed a similar flow performance as that of the benchmark material PEK HP3.…”

“…PAEKs-based composites are mainly prepared by dry/wet mixing, melt-compounding, followed by milling, in situ synthesis, and dissolution-coating methods. [52,53,55,56] The PAEK composites prepared by physical mixing usually exhibit poor interfacial bonding and an uneven distribution of reinforcements, especially for nanomaterials. Melt-compounding and milling followed by sieving is an efficient method to prepare composite powders, where the reinforcements are uniformly embedded in the polymer matrix.…”

3D printing of carbon-based materials: A review

“…It is well understood that by adding CF in dry powder form, the spreading mechanism allows the fibers to be oriented in the x and y direction and thus improve the corresponding mechanical properties (Figure 2c), but the performance improvements, especially in the zdirection, are not as great as expected. Considering the importance of particle size and powder flow behavior for the SLS process, Chen et al [54] suggested that a milling process followed by sieving could successfully lead to a powder based on composite grains of short carbon fibers encapsulated in Polyether Ether Ketone (PEEK) (in Figure 3, the resulting fractions of 14 CF at 33, 34 and 54 wt.% are called A, B and C, respectively). As expected by the authors, a standard CF-reinforced, hot-compression molded sample showed higher modulus compared to the laser-sintered film (7297.4 and 2749.1 MPa, respectively for fraction B, measured at 100 °C).…”