PEEK Matrix Research Articles

Characterization and Assessment of PEEK/Silicon Dioxide Composite.

In the domain of dentistry, PEEK materials have been utilised as removable partial denture frameworks, implant substances, and fixed dental prostheses. Even though PEEK polymer has a low modulus of elasticity, its mechanical attributes could be fine-tuned by integrating various inorganic filler materials. The study intends to characterise and assess Nano SiO2/PEEK composite prepared by using the melt blend approach. The design of this study uses 3% SiO2 and PEEK composite made using the melt blend technique and studies their characteristics with reference to pure PEEK. The following assessments are conducted: SEM and EDX assessment with AFM investigation in addition to tensile strength test, transverse strength test, and wettability test. All data were scrutinised by SPSS software version 24 and the statistical analyses included the mean, standard deviation, and the independent sample t-test. The outcomes of this investigation pertain to the differences in characteristics of a composite of SiO2/PEEK compared with pure PEEK. The outcomes indicate that there is a statistically highly significant increase in the mean value of transverse strength was seen with the PEEK/SiO2 composite (3503.02 MPa) versus PEEK (2694.61 MPa), while there is a statistically significant decrease in the mean value of the tensile strength for PEEK/SiO2 (63.69 MPa) versus PEEK (97.62 MPa). Moreover, improvement in hydrophobic characteristics and surface roughness of PEEK/SiO2 (81.78°), (0.66 nm) versus PEEK (71.01°), (1.23 nm), respectively, thus giving more chance to composite to be investigated in human bone/implant substitution. Furthermore, the results of EDX and SEM images exhibited adequate distribution of Nano SiO2 within the PEEK matrix. There was also a statistically substantial decrease in the surface roughness and tensile strength obtained from the AFM investigation. As far as this study is concerned, a conclusion can be made that we can use 3% Nano SiO2 to prepare a composite of SiO2/PEEK by using the melt blend approach. Nano SiO2 can alter the SiO2/PEEK composite's transverse strength and reduce the hydrophobic characteristics of the surfaces with proper distribution of nanoparticles within the matrix of PEEK with less surface roughness.

Thermoelectric Properties of N-Type Poly (Ether Ether Ketone)/Carbon Nanofiber Melt-Processed Composites.

The thermoelectric properties, at temperatures from 30 °C to 100 °C, of melt-processed poly(ether ether ketone) (PEEK) composites prepared with 10 wt.% of carbon nanofibers (CNFs) are discussed in this work. At 30 °C, the PEEK/CNF composites show an electrical conductivity (σ) of ~27 S m-1 and a Seebeck coefficient (S) of -3.4 μV K-1, which means that their majority charge carriers are electrons. The origin of this negative Seebeck is deduced because of the impurities present in the as-received CNFs, which may cause sharply varying and localized states at approximately 0.086 eV above the Fermi energy level (EF) of CNFs. Moreover, the lower S, in absolute value, found in PEEK/CNF composites, when compared with the S of as-received CNFs (-5.3 μV K-1), is attributed to a slight electron withdrawing from the external layers of CNFs by the PEEK matrix. At temperatures from 30 °C to 100 °C, the σ (T) of PEEK/CNF composites, in contrast to the σ (T) of as-received CNFs, shows a negative temperature effect, understood through the 3D variable-range hopping (VRH) model, as a thermally activated hopping mechanism across a random network of potential wells. Moreover, their nonlinear S (T) follows the same behavior reported before for polypropylene composites melt-processed with similar CNFs at the same interval of temperatures.

Improvement of the interfacial properties of CF/PEEK composites by introducing aminated polyphenylene sulphide (PPS‐NH2) as a sizing agent

AbstractThe resin matrix and CF fibers itself of CF/PEEK composites exhibit surface inertness, resulting in poor interface bonding between CF and PEEK matrix. This phenomenon seriously affects the mechanical properties of CF/PEEK composites especially the interlaminar shear strength (ILSS). In order to improve the interfacial properties of CF/PEEK composites, a novel sizing agent of CF fibers namely PPS‐NH2 was synthesized, and its influence on the fibers–matrix interface interaction and properties of CF/PEEK composites was investigated by using scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis, atomic force microscopy. The results showed that the interface of CF/PEEK composite was improved by coating PPS‐NH2 sizing agent on the surface of CF. When the amination degree of PPS‐NH2 reaches 31.25%, the ILSS, flexural strength and modulus of CF/PEEK Composites reach 73.9 MPa (119%), 671.4 MPa (63%) and 32.8GPa (51%) and, respectively. At the same time, the main failure mechanism of CF/PEEK composites changes from fibers–matrix debonding into interface layer deformation and resin fracture. This method can effectively improve the interface defects between CF/PEEK composites.

Influence of manufacturing shrinkage and microstructural features on the strength properties of carbon fibers/PEEK composite material

This research discusses the micromechanical modelling for thermoplastic composite material. Elastoplastic and damage model for PEEK matrix composite with the dependency of properties to stress state is presented. Plasticity initiation conditions and failure criterion are analyzed. The influence of manufacturing residual stresses is considered. All typical engineering experiments for neat PEEK under different stress state are good predicted by the model. Numerical experiment for macro-properties estimation based on micromechanical model is conducted and the results are compared with the test data.

Calcium Silicate Whiskers-Enforced Poly(Ether-Ether-Ketone) Composites with Improved Mechanical Properties and Biological Activities for Bearing Bone Reconstruction.

Poly (ether-ether-ketone) (PEEK) displays promising potential application in bone tissue repair and orthopedic surgery due to its good biocompatibility and chemical stability. However, the bio-inertness and poor mechanical strength of PEEK greatly limit its application in load-bearing bones. In this study, calcium silicate whiskers (CSws) are synthesized and then compounded with PEEK to fabricate the PEEK/CSw composites with excellent mechanical properties, biological activity. Compared with PEEK, the PEEK/CSw composites exhibited higher hydrophilicity and ability to deposit hydroxyapatite on the surface. CSws are evenly dispersed in the PEEK matrix at 10wt% content and the mechanical strength of the PEEK/CSw composite is ≈96.9±2.4MPa, 136.3±2.4MPa, and 266.0±3.2MPa, corresponding to tensile strength, compressive strength, and bending strength, respectively, which is 20%, 18%, and 52% higher than that of pure PEEK. The composites improve the adhesion, proliferation, and osteogenic differentiation of BMSCs. Furthermore, PEEK/CSw composite remarkably improves bone formation and osteointegration, which has higher bone repair capacity than PEEK. These results demonstrate that the PEEK/CSw scaffolds display superior abilities to integrate with the host bone and promising potential in the field of load bearing bone repair.

Synthesis and characterization of engineered PEEK‐based composites for enhanced tribological and mechanical performance

AbstractWe report the synthesis and characterization of engineered PEEK‐based composites by using biochar (DDGS500—pyrolyzed Distiller's dried grains with soluble (DDGS)), metal (Mo), and PEEK‐ceramic (Xonotlite) as reinforcements. A systematic study was done to understand the effect of these additives on functional and mechanical properties. Initially, these composites were synthesized by hot pressing. Microstructure analysis of reinforcement powders by scanning electron microscopy (SEM). Detailed microstructure study of the composites showed that DDGS500 powder particulates were well dispersed within the PEEK matrix after the addition of 5 vol%. However, at higher concentration of 10 and 20 vol%, the particles segregated at the phase boundaries and PEEK rich cores were observed in the microstructure. Mo and Xonotlite particles were segregated at the phase boundaries even at 5 vol% concentration, which was more prominent at higher concentrations of 10 and 20 vol% reinforcements. Differential scanning calorimetry (DSC) showed lowering in melting point (Tm) and crystallization temperature (Tc) and increase in crystallization in all the composites. The addition of DDGS500 and Mo enhanced the plasticity and Ultimate Compressive Strength (UCS) (5 vol% additions of DDGS500 and Mo enhanced the UCS by 12.6% and 32.2%, respectively) of the composites whereas Xonotlite additions increased brittleness of the composites. The addition of DDGS500, PEEK‐Mo, and PEEK‐Xonotlite particulates lowered the wear rate until 10 vol% by several orders of magnitude and stabilized the friction coefficient (μ) versus distance profile. However, significant increase in wear rate at 20 vol% of Xonotlite was observed due to third body abrasion. All the composites showed hydrophobic behavior except PEEK‐20 vol% Xonotlite, which showed hydrophilic behavior with a decrease in contact angle as a function of time, which shows that Xonotlite can be a promising additive for increasing hydrophilicity of PEEK‐based composites for biomedical applications.

Detecting, characterising and assessing PEEK’s and CF-PEEK’s thermal degradation in rapid high-temperature processing

In this study, a methodology is proposed that can identify and characterise the extent of thermal degradation that takes place in rapid high-temperature processing of PEEK and CF-PEEK. Initially, their decomposition mechanisms are examined in air with thermogravimetric analysis (TGA). Then, PEEK and CF-PEEK samples are heated in static air conditions up to temperatures that are close to and above the onset of thermal degradation with heating rates up to 100 °C/min. The samples are then examined with attenuated total reflection - Fourier transform infrared (ATR-FTIR) spectroscopy and a new fluorenone peak is detected at 1711 cm-1 that is directly linked with the progress of degradation. A correlation between its intensity and the resulting thermal degradation takes place and it is shown that the 1711 cm-1 peak can be safely used as a tool for characterising the extent of thermal degradation at the examined heating conditions. Finally, an investigation with differential scanning calorimetry (DSC) is conducted to identify the extent of thermal degradation that would not induce a severe thermal damage on the two materials. In both PEEK and CF-PEEK, faster heating rates are found to have a reduced effect on their crystallinity content and a degradation around 1% of their PEEK matrix content is found tolerable.

Dynamic mechanical analysis of continuous carbon fiber‐reinforced polyetheretherketones under multi‐consecutive temperature scans

AbstractThe study analyzed the dynamics mechanical properties of carbon fiber‐reinforced polyetheretherketone (CF/PEEK) under multi‐consecutive temperature scans and establish an evaluation model of storage modulus to facilitate application in high/low temperature. The dynamic mechanical properties of CF/PEEK laminate sheets obtained via hot‐pressing procedure were subjected to a dynamic mechanical cycle test. The micromorphology and microstructure were observed with a scanning electron microscopy. The structural evolution of CF/PEEK and the interface between carbon fiber and PEEK matrix were analyzed. The characteristic variation of storage modulus, loss modulus, and loss factor are discussed and the damping properties are studied in different temperature ranges. The results show that the dynamic mechanical properties of CF/PEEK were become stabilized after the first temperature scan, while the glass transition temperature remained basically unchanged. The storage modulus of the material increased by 15.8% and the peak value of the loss factor curve increased by 14.4%. Based on the experimental data, an evaluation model of the storage modulus was formulated and validated by the test results obtained to provide an accurately predicting the dynamic mechanical properties of CF/PEEK and expand its engineering applications.

Ionic aqueous quaternized Poly(amide-imide) sizing on CF for improving interface and mechanical performance of CFRTP

With the rapid development of automotive, aviation, and aerospace, Carbon fiber reinforced thermoplastic polymer (CFRTP) has been widely used. However, massive commercial surfactants were used in present aqueous sizings for CF in high-performance CFRTP since thermoplastic polymers in sizing were all hydrophobic, which resulted in thermal instability and mechanical performance decrease. To solve this problem, herein, quaternary ammonium salt groups were introduced to poly (amide-imide)(PAI) via click-reaction, a novel quaternized PAI with excellent solubility and thermal stability was synthesized. An aqueous thermoplastic CF sizing was prepared via self-emulsifying of quaternized PAI without surfactants for the first time, which was stable after 12-month-storage. Furthermore, PAI-sized CF with appropriate processability was obtained for the manufacture of CF/PEI (polyether-imide) and CF/PEEK (polyether-ether-ketone) composites. Mechanical performances and hydrothermal aging resistance of composites were all significantly improved. Especially, quantum chemical calculations were employed to reveal the mechanisms of interface strengthening in composites, there were hydrogen bonding and π-π stacking between PAI sizing and PEI, PEEK matrix.

Carbon nanotube enhanced carbon Fibre-Poly(ether ether ketone) interfaces in model hierarchical composites

Poly (ether ether ketone) (PEEK) has a high continuous service temperature, excellent mechanical properties, and good solvent and abrasion resistance, which can be further improved through the addition of carbon nanotubes (CNTs). CNT-PEEK nanocomposites are promising matrices for continuous carbon fibre composites; powder processing can mitigate the high melt viscosities in these systems. In this study, model single fibre (hierarchical) composites were produced by embedding sized and desized carbon fibres in nanocomposite CNT-PEEK powders followed by single fibre pull-out tests to assess interfacial characteristics. Carbon fibre-PEEK interfacial shear strength is typically 40–45 MPa. Increasing CNT loadings increased fibre-matrix interfacial shear strength linearly up to ∼70 MPa at 5.0 wt%, which was attributed to the CNT-based mechanical modification of the PEEK matrix. Apparent interfacial shear strength was inversely correlated with the embedded fibre length irrespective of carbon fibre sizing or CNT loading, indicating brittle fracture of the fibre-matrix interface. Pulled out carbon fibres were still coated with the matrix, which indicated strong adhesion at the interface in all samples, likely related to a transcrystalline region. Adhesion was, however, negatively affected by the presence of epoxy sizings. Frictional shear strength was independent of embedded fibre length and CNT content for all samples.

Preparation of PEEK/MWCNT nanocomposites via MWCNT-induced interfacial crystallization mediated compatibilization

Polymer nanocomposites based on high melting temperature semi-crystalline polymers are difficult to prepare because of the limited means available to achieve good nanoparticle dispersion for greatly improved properties. In this study, we demonstrate an alternative strategy for preparation of high-performance PEEK/MWCNT nanocomposites via an interfacial crystallization approach. The utilization of polyetheretherketimine (PEEKt) to prepare PEEK nanocomposites eliminates the difficult solvent issues and enables solution mixing and subsequent crystallization of PEEK on MWCNTs. This strategy facilitates a homogeneous dispersion of pristine MWCNTs into the PEEK matrix without any need of surfactant or compatibilizer. Upon drying, the PEEK/MWCNT powder were then molded into various dimensions for mechanical property measurements. As expected, significant improvements are realized. The PEEK/MWCNT nanocomposites that exhibit good dispersion of MWCNT in PEEK are ideal for applications in energy production field, electrochemical devices, and coatings under harsh conditions.

Enhanced thermal and electrical properties by Ag nanoparticles decorated GO-CNT nanostructures in PEEK composites

A nanostructure of graphene oxide (GO) and carbon nanotubes (CNTs) decorated with silver nanoparticles (AgGNT) has been prepared via a molecular-level-mixing (MLM) method followed by a subsequent freeze-drying and reduction process. The obtained well-dispersed AgGNT nanostructures were then applied as fillers to reinforce the poly(ether ether ketone) (PEEK) matrix. AgGNT-PEEK composites have then demonstrated excellent electrical and thermal conduction performances as well as high thermal durability compared with pure PEEK and its pure Ag or GO-CNT (GNT) enhanced composites. Owing to the unique morphology of AgGNT nanostructures, which made them uniformly dispersed in the PEEK matrix and formed a 3D network structure, the AgGNT-PEEK composites displayed 60% higher thermal conductivity and around 109 times better electrical conduction performance than pure PEEK, and superior thermal durability even above the melting temperature of pure PEEK. Thus, the AgGNT-PEEK composites have shown great potential for applications such as semiconductors, high-temperature electrical applications, aerospace, and automobile materials.

Effect of surface functionalization on the surface and inter-facial properties of thermoplastic-coated carbon fibers

Hydroxyl- and amino- functionalized carbon fibers (CF―OH and CF―NH2) were prepared by surface oxidation with an acid mixture (H2SO4:HNO3 of 3:1 v/v) followed by grafting with ethylenediamine. The functionalized CFs were sized with a sulfonated poly (ether ether ketone) (SPEEK) sizing agent to prepare CF―OH―SPEEK and CF―NH2―SPEEK materials. The effect of surface functionalization on the surface properties of the CFs and their interfacial properties in PEEK matrix composites were investigated. Results showed that the content of polar functional groups and wettability of the CFs increased significantly after surface functionalization. Chemical reactions between the modified CFs and the sizing agent, improved the interfacial adhesion between them. The interfacial shear strengths of CF―OH―SPEEK and CF―NH2―SPEEK reinforced PEEK matrix composites were increased by 6.2% and 14.0%, respectively, compared with that of the composites reinforced with desized-SPEEK CFs. The surface functionalization helps improve the interfacial adhesion of thermoplastic-coated CF/PEEK composites.

A new two-step modeling strategy for random micro-fiber reinforced composites with consideration of primary pores

This paper presents a novel procedure to evaluate mechanical properties of random micro-fiber reinforced composites with consideration of primary pores. To this end, micro-CT experiment is conducted first to detect micro-scale morphology of the constituent materials, including size of pores and arrangement of fibers, etc. On this basis, a two-step modeling strategy with consideration of primary pores is proposed. In the first step, the equivalent mechanical properties of the pore defects and the micro-fibers are determined by the 3D parametric finite volume directly averaging micromechanics (FVDAM), by which an equivalent ellipsoidal reinforcing phase composed of fibers and pores is constructed. In the second step, the equivalent pores and fibers are embedded into matrix materials to build an RVE of the composite to calculate the elastic modulus of the composite. In addition, the 3D parametric FVDAM is further extended to simulate plastic deformation of PEEK matrix under quasi-static tensile loading. The results obtained from the proposed two-step modeling strategy have a good agreement with the results from experiments.

Melt-Blended Multifunctional PEEK/Expanded Graphite Composites

In this work, antistatic, high-performance composites of poly (ether ether ketone) (PEEK) and concentrations of 0.5–7 vol% expanded graphite (EG) were fabricated via twin-screw extrusion and injection moulding at mould temperatures of 200°C. The morphological, electrical, rheological, thermal, mechanical, and wear properties of the composites were investigated. Scanning electron microscope (SEM) images indicate that distribution and dispersion of EG platelets in the PEEK matrix are enhanced at higher EG loadings. The electrical conductivity of the composites with 5 vol% of EG exhibits a sharp rise in the electrical conductivity range of antistatic materials because of the formation of conductive paths. The formation of a three-dimensional EG network led to a rapid increase in the storage modulus of the melt of the 2 vol% of EG-loaded composite at a frequency of 0.1 rad/s and temperature of 370°C. The neat PEEK and composites containing 0.5–5 vol% EG indicated a cold-crystallisation peak in the first heating scan of a non-isothermal differential scan calorimetry (DSC) test and their crystallinity degrees changed slightly. However, after removing their thermal and stress histories, the EG platelets promoted nucleation and increased the PEEK crystallinity remarkably, indicating that annealing of the PEEK composites can improve their mechanical performance. The neat PEEK exhibits the standard tensile and flexural stress-strain behaviour of thermoplastics, and the composites exhibit elastic behaviour initially followed by a weak plastic deformation before fracture. The addition of 5 vol% of EG to PEEK increased the tensile and flexural modulus from 3.84 and 3.55 GPa to 4.15 and 4.40 GPa, decreased the strength from 96.73 and 156.41 MPa to 62 and 118.19 MPa, and the elongation at break from 27.09 and 12.9% to 4 and 4.6%, respectively. The wear resistance of the composite containing 3 vol% EG was enhanced by 37% compared with the neat PEEK.

Structure-function integrated poly (aryl ether ketone)-grafted MWCNTs/poly (ether ether ketone) composites with low percolation threshold of both conductivity and electromagnetic shielding

In this work, a soluble poly (aryl ether ketone) with an azide-group (az-PAEK) was designed and synthesized, and poly (aryl ether ketone) was successfully grafted onto the surface of multi-walled carbon nanotubes (PAEK-g-MWCNTs) by [2 + 1] cycloaddition reaction between azide-group of az-PAEK and similar carbon-carbon double bond (CC) on MWCNTs. In addition, PAEK-g-MWCNTs were dispersed into semi-crystalline poly (ether ether ketone) (PEEK) matrix as fillers, the electrical conductivity, electromagnetic shielding performance, mechanical properties and thermal stability of PAEK-g-MWCNTs/PEEK composites with different filler contents were discussed. The results show that the excellent dispersion effect of PAEK-g-MWCNTs filler in PEEK matrix leads to the percolation threshold of conductivity and electromagnetic shielding of PAEK-g-MWCNTs/PEEK composites are only 0.372 vol% and 0.496 vol% respectively, which endows PAEK-g-MWCNTs/PEEK composites with extraordinary conductivity (1.123 S/cm) and electromagnetic shielding performance (36 GHz, 53.56 dB). At the same time, the mechanical properties (tensile strength of 118.2 MPa) and thermal stability (561 °C) of PAEK-g-MWCNTs/PEEK composite are enhanced, which is a kind of structure-function integrated composite with low percolation threshold of both conductivity and electromagnetic shielding.

A force model of high-speed dry milling CF/PEEK considering fiber distribution characteristics

Carbon fiber reinforced polyetheretherketone (CF/PEEK) is an emerging material that is widely used in the automotive and aviation industry due to its high shock resistance, thermostability, and recyclability. However, its dry-machining requirement with an unclear dynamic material removal process limits the machining efficiency and surface quality. To this end, we firstly established a two-dimensional joint probability distribution model of cutting carbon fibers based on the microstructure of CF/PEEK. Compared with previous brittle models, the plastic model is verified to be more consistent with experimental results. A high-speed dry (HSD) milling force model considering carbon fiber distribution is then developed and is proofed with a high prediction accuracy of about 92.6%. With the proposed model, the milling force can be separated into forces of cutting carbon fibers and PEEK matrix, by which the influences of high-speed dry milling process on carbon fibers and PEEK matrix can be analyzed. The results show that carbon fiber distribution exhibits a significant impact on milling force and is more easily affected by milling parameters compared with the PEEK matrix. It is also verified feasible to HSD milling CF/PEEK, and the work gives the guidance of breaking the low-speed machining limits by improving the machining process.

Lubricated sliding of CFRPEEK/AlCrN film tribo-pair and its effect on the mechanical properties and structural integrity of the AlCrN film

The tribological behavior of AlCrN film against carbon-reinforced PEEK (CFRPEEK) was investigated using pin-on-disc tribometer in simulated body fluid (SBF) lubrication. The materials were characterized using XRD, AFM, Raman spectroscopy, nanoindentation and nanoscratch tests to understand their structural make-up and mechanical behavior. Post tribotests, the worn coated surface was further analyzed using nanoindentation test, nanoscratch test and Raman spectroscopy to evaluate the effect of the lubricated sliding on the structural integrity and mechanical properties of the AlCrN film. Findings showed that the AlCrN film was composed of dominant cubic CrN structure while CFRPEEK registered intensity peak in XRD attributed to carbon introduction in the PEEK matrix. The p-h plot indicated elastoplastic nature of the AlCrN film inducing high hardness and elastic modulus while CFRPEEK had suffered significant plastic deformation. In simulated tribotest, the AlCrN film witnessed mild abrasion whereas CFRPEEK showcased deformation and fracture induced tearing and fiber pull-out. What is more, the worn AlCrN surface retained its compositional integrity and preserved its indentation hardness, scratch hardness, elastic modulus and H/E attribute as suggestive from the one-way ANOVA test with Tukey's grouping.

Improvement of interfacial interactions in CF/PEEK composites by an s‐PSF/graphene oxide compound sizing agent

AbstractThe interfacial interactions of carbon fiber (CF)‐reinforced polymer composites is a key factor affecting the overall performance of the material. In this work, we prepared a sulfonated poly(ether sulfone)–graphene oxide mixed sizing agent to modify the interface of CF/PEEK composites and improve the interfacial properties between the PEEK matrix and CF. Results showed that the mechanical and interfacial properties of CF/PEEK composites are improved by the sizing agent. Specifically, the flexural strength, flexural modulus and interlaminar shear strength of the materials reached 847.29 MPa, 63.77 GPa, and 73.17 MPa, respectively. Scanning electron microscopy confirmed markedly improved adhesion between the resin matrix and fibers. This work provides a simple and effective method for the preparation of high‐performance CF/PEEK composites, which can improve the performance of composites without degrading the mechanical property of pristine CF.

Development of Microstructure and Properties of Multicomponent MoS2/HA/PEEK Coatings on a Titanium Alloy Via Electrophoretic Deposition and Heat Treatment

In this study, molybdenum disulfide nanosheets, bioactive hydroxyapatite particles of two types in various amounts, and PEEK 704 microparticles were electrophoretically co-deposited to fabricate multicomponent coatings on Ti-13Nb-13Zr alloy substrates. A mixture of pure ethanol and cationic chitosan polyelectrolyte was used as a dispersion medium. The kinetics and mechanism of deposition were investigated. The kinetics depended significantly on the suspension’s chemical composition and the voltage used during EPD. Cationic chitosan provided the steric stabilization of the suspension and enabled cathodic co-deposition of all coating components. Green macroscopically homogeneous coatings were subsequently heat treated. The treatment densified the coatings and caused the formation of a stable semi-crystalline PEEK matrix consisting of spherulites. The MoS2 nanosheet packages, separate HA particles and their agglomerates were embedded in the coating matrix. After heat treatment, both types of coatings, differing in HA type, were characterized by excellent adhesion to the substrate and moderate scratch resistance. During surface topography investigation, it was found that coatings containing smaller HA nanoparticles had a slightly lower surface roughness. The coatings raised the corrosion resistance of the titanium alloy substrate in Ringer’s solution. The possibility of the electrophoretic co-deposition of various ceramic and PEEK particles to develop multicomponent coatings, as well as their contribution to enhancing titanium alloy surface properties, represents an important input in further developing superior bioactive titanium implants.