scholarly journals Covalent polymer functionalized graphene oxide/poly(ether ether ketone) composites for fused deposition modeling: improved mechanical and tribological performance

RSC Advances ◽  
2020 ◽  
Vol 10 (43) ◽  
pp. 25685-25695
Author(s):  
Cheng Yang ◽  
Jing Xu ◽  
Yue Xing ◽  
Sijia Hao ◽  
Zhidong Ren
Keyword(s):  
Graphene Oxide ◽  
Fused Deposition Modeling ◽  
Tribological Performance ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Fused Deposition ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Deposition Modeling ◽  
Ether Ketone

A polymer “bridge” was designed to connect graphene oxide and poly(ether ether ketone), making stronger and tougher composites.

scholarly journals Fused deposition modeling of poly(ether ether ketone) scaffolds

2021 ◽  
Vol 40 (1) ◽  
pp. 1-11
Author(s):  
Xiaohui Song ◽  
Dengwen Shi ◽  
Pinghui Song ◽  
Xingguo Han ◽  
Qingsong Wei ◽  
...  
Keyword(s):  
Fused Deposition Modeling ◽  
Processing Parameters ◽  
Compressive Yield Strength ◽  
Fused Deposition ◽  
Human Bones ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Deposition Modeling ◽  
Ether Ketone ◽  
Scanning Electron

Abstract In this paper, poly(ether ether ketone) (PEEK) scaffold was manufactured using the fused deposition modeling (FDM) technology with a modified platform. The effect of processing parameters of FDM on the porosity and compressive strength of PEEK scaffold with uniform pores (0.8 mm of diameter) was optimized through Taguchi methodology. With the determined parameters, four kinds of PEEK scaffolds with gradient pores (0.4–0.8 mm, 0.6–1.0 mm, 0.8–1.2 mm, and 1.2–2.0 mm) were manufactured. The scaffolds were investigated using scanning electron microscopy. The results showed that the pores of scaffolds were interconnected with rough surface, which can allow the attachment, migration, and differentiation of cells for bone forming. The tensile strength, compressive max strength, and compressive yield strength of scaffolds were between 18 and 35 MPa, 197.83 and 370.42 MPa, and 26 and 36 MPa, respectively. The mechanical properties of the scaffolds can satisfy the loading requirements of human bones. Therefore, the PEEK scaffolds have a potential to be used in tissue engineering as implants.

Mechanically reinforced phosphoric acid doped quaternized poly(ether ether ketone) membranes via cross-linking with functionalized graphene oxide

2014 ◽  
Vol 50 (97) ◽  
pp. 15381-15384 ◽  
Author(s):  
Na Zhang ◽  
Baolong Wang ◽  
Yurong Zhang ◽  
Fanzhe Bu ◽  
Ying Cui ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Graphene Oxide ◽  
Phosphoric Acid ◽  
Cross Linking ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Cross Linker

Functionalized graphene oxide as a cross-linker reinforces the tensile strength of phosphoric acid doped quaternized poly(ether ether ketone) membranes.

Effect of process parameters of fused deposition modeling on mechanical properties of poly-ether-ether-ketone and carbon fiber/poly-ether-ether-ketone

2022 ◽  
pp. 095400832110673
Author(s):  
Pei Wang ◽  
Aigang Pan ◽  
Liu Xia ◽  
Yitao Cao ◽  
Hongjie Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Fused Deposition Modeling ◽  
Fused Deposition ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Raster Angle ◽  
Deposition Modeling ◽  
Ether Ketone ◽  
Nozzle Temperature

As a rapidly developing additive manufacturing technology, fused deposition modeling (FDM) has become widespread in many industry fields. It can fabricate complicated geometries using filament of thermoplastic materials such as PP, polylactic acid, acrylonitrile butadiene styrene, etc. However, poor mechanical properties of raw materials limit their application. Poly-ether-ether-ketone is a type of special engineering plastic with high performance, which could be further reinforced by adding carbon fibers (CFs). During FDM process, the mechanical properties of printed parts are largely subject to careful selection of process parameters. To improve the mechanical properties of PEEK and CF/PEEK 3D-printed parts, the effects of various process parameters including building orientation, raster angle, nozzle temperature, platform temperature, ambient temperature, printing speed, layer thickness, infill density, and number of printed parts on mechanical properties were investigated. The tensile fracture interfaces of printed parts were observed by scanning electron microscope (SEM) to explain the influence mechanism of process parameters. In the single factor experiments, flat and on-edge specimens show the best tensile and flexural strength, respectively; the specimens with raster angle ±45° and 0° show the best tensile and flexural strength, respectively. When the nozzle temperature at 500°C, platform temperature at 200°C, ambient temperature at 150°C, printing speed is 20 mm/s, layer thickness is 0.2 mm, and infill density is 100%, the printed parts exhibit the best mechanical properties.

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