PEEK Filament 1.75mm Natural Color

Catalog	ACMA00031295
Appearance	Natural Color
Application	FDM 3D Printer
Fiber Diameter	1.75mm
Material	PEEK
Packaging	NW: 0.5kg/roll GW: 1.0kg/roll

Case Study

How PEEK Filament Moisture Content Affects the Quality of 3D Printed Products

Wang, Zezheng, et al. Discover Applied Sciences, 2024, 6(8), 394.

The medical field is seeing the development of complex polyetheretherketone (PEEK) products made through 3D printing technologies. PEEK materials possess certain hygroscopic properties that can affect the quality of products made through 3D printing. This study examined how various storage durations affect the moisture absorption levels of PEEK filaments and analyzed the subsequent impact on the performance of products printed from these filaments.
Key Findings
· After storing PEEK filament in a simulated room temperature environment for a set duration researchers found its maximum moisture content reached approximately 0.2 wt%. PEEK filament reached its highest moisture content of 0.26 wt% when humidity levels experienced a significant increase.
· Studies of surface morphology along with density hardness and tensile strength evaluations for both extruded PEEK and 3D printed products made through fused filament fabrication (FFF) showed that moisture absorption harms PEEK filament properties.
· Higher moisture content leads to worse quality extruded materials which produces 3D printed specimens with poor surface morphology. Weak interlayer bonding leads to a reduction in both specimen density and hardness. Moisture interference with crystallinity also led to reduced tensile performance of the material.

PEEK Extrusion-Based Additive Manufacturing for Biomedical Applications

Vaezi, Mohammad, et al. Virtual and Physical Prototyping, 2015, 10(3), 123-135.

The medical device industry shows increasing interest in polyetheretherketone (PEEK) for device construction because of its outstanding biocompatibility and mechanical properties including an elastic modulus matching that of cortical bone. The research demonstrated a successful cost-efficient method of producing PEEK structures using filament-based extrusion in 3D printing technology.
· 3D Printing Parameters
Maintaining the right temperature throughout printing ensured strong connections between PEEK layers and between PEEK and the substrate, while preventing warping and delamination. The thermal environment surrounding the 3D printed PEEK part affected its crystalline structure. The printing process operated optimally when nozzle temperatures were maintained between 400-430°C alongside an ambient temperature of 80°C and a heated build plate temperature of up to 130°C which enabled an extrusion rate of 2.2 mg/s.
· Performance of 3D Printed Porous PEEK
The compressive performance of 3D-printed porous PEEK renders it applicable for both load-bearing and non-load-bearing uses. The solid specimens showed compressive yield strengths of 102.38 MPa and 29.34 MPa and yield strains of 0.056 and 0.044 when porosities were 0% and 38%. The ultimate tensile strength of 75.06 MPa in 100% infill samples shows a 33% decline from the strength of injection-molded PEEK. Printed PEEK samples demonstrated a flexural modulus of 2.43 GPa together with a flexural strength of 132.37 MPa which exceeded the flexural strength of specimens produced with acrylate-based resin, ABS, polyamide, and alumide using other additive manufacturing methods.