Laser surface modification of PEEK

Riveiro, A.; Soto, R.; Comesaña, R.; Boutinguiza, M.; Val, J. del; Quintero, F.; Lusquiños, F.; Pou, J.

doi:10.1016/j.apsusc.2012.01.154

Cited by 140 publications

(88 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More recently, other laser wavelengths were studied with the aim to evaluate their effect on the surface modification of PEEK [44,47,48]. So far, surface functionalization of PEEK by means of LST has been successfully achieved using laser wavelengths ranging from UV (355 nm) to middle infrared (MIR) (10.6 µm).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Laser Surface Texturing of Polymers for Biomedical Applications

et al. 2018

View full text Add to dashboard Cite

Polymers are materials widely used in biomedical science because of their biocompatibility, and good mechanical properties (which, in some cases, are similar to those of human tissues); however, these materials are, in general, chemically and biologically inert. Surface characteristics, such as topography (at the macro-, micro, and nano-scale), surface chemistry, surface energy, charge, or wettability are interrelated properties, and they cooperatively influence the biological performance of materials when used for biomedical applications. They regulate the biological response at the implant/tissue interface (e.g., influencing the cell adhesion, cell orientation, cell motility, etc.). Several surface processing techniques have been explored to modulate these properties for biomedical applications. Despite their potentials, these methods have limitations that prevent their applicability. In this regard, laser-based methods, in particular laser surface texturing (LST), can be an interesting alternative. Different works have showed the potentiality of this technique to control the surface properties of biomedical polymers and enhance their biological performance; however, more research is needed to obtain the desired biological response. This work provides a general overview of the basics and applications of LST for the surface modification of polymers currently used in the clinical practice (e.g., PEEK, UHMWPE, PP, etc.). The modification of roughness, wettability, and their impact on the biological response is addressed to offer new insights on the surface modification of biomedical polymers.

show abstract

Section: Methodsmentioning

confidence: 99%

“…Riveiro et al compared the effect of the three ns laser irradiation wavelengths (355, 532, and 1,064 nm) on the roughness, and contact angle of PEEK substrates, properties directly related to the cell viability on implants [44]. In order to enhance its adhesion properties, an increase on the wettability was sought.…”

Section: Methodsmentioning

confidence: 99%

Laser Surface Texturing of Polymers for Biomedical Applications

et al. 2018

View full text Add to dashboard Cite

show abstract

“…During the past decades, different additives, except the modification of surface properties [21][22][23][24][25][26][27][28][29][30], were added into PEEK or PI to improve tribological properties. Many researchers conducted various experiments to investigate the friction coefficient and wear rate of various conditions, providing comprehensive mechanisms of friction and wear at different conditions.…”

Section: Introductionmentioning

confidence: 99%

Aqueous lubrication and surface microstructures of engineering polymer materials (PEEK and PI) when sliding against Si3N4

et al. 2017

View full text Add to dashboard Cite

Polyether-ether-ketone (PEEK) and polyimide (PI) are two kinds of engineering polymer materials widely used as roller bearing cages and rings under extreme environment because of their noise reduction and corrosion resistance properties. The Si 3 N 4 ceramic is the most common ball bearing material. Many current engineering applications of ball bearings require aqueous lubrication. Therefore, this study presents the aqueous lubrication of tribopairs formed by PEEK and PI material sliding against Si 3 N 4 ceramic. Experimental results show that two tribopairs exhibited the similar tribological properties under the dry condition. Water as a lubricant for the PI-Si 3 N 4 tribopair pairs effectively reduces both friction coefficients by 35.5% and wear rates by 32%. The water absorption of PI induces better tribological properties by changing the tribopair surface properties. In addition, the dimples appearing on the PI tribopair surface under water generate additional hydrodynamic lubrication and further improve the friction properties of surface. The PEEK-Si 3 N 4 tribopair shows similar friction coefficients under two kinds of environments. The wear rates under water are approximately more than two times of that under dry sliding. However, water inhibits the appearance of the crush phenomenon and enhances the carrying capacity of the tribopair. Energy dispersive spectroscopy and X-ray diffraction spectra demonstrate no chemical corrosion. The 3D profiler and SEM morphologies illustrate that the transfer film would be formed from the surface of PEEK under water but hindered under dry friction. Overall, the PI-Si 3 N 4 tribopair exhibits better properties than PEEK under water and is promising for future applications in the bearing industry.

show abstract

“…Several studies have reported that surface roughness values of around 1 lm or above increase bone bonding to the implant surface [6,7]. Experimental results have shown that moderately hydrophobic surfaces promote the adsorption of the adhesive proteins that determine the attachment and spreading of cells, whereas hydrophobic or non-ionic hydrophilic surfaces inhibit the their interaction with cells [8].…”

Section: Introductionmentioning

confidence: 97%

Effect of Electron Beam Treatment in Air on Surface Properties of Ultra-High-Molecular-Weight Polyethylene

et al. 2016

View full text Add to dashboard Cite

In this study, ultra-high-molecular-weight polyethylene (UHMWPE) was treated by an electron beam (EB) in air to obtain polar hydroxyl and carbonyl functional groups, which originated from oxidizing agents, to improve hydrophobicity and cell adhesion (NCTC clone L929). Sample characterization using Fourier transform-infrared spectroscopy revealed the presence of carbonyl oxidation products, whose intensity and surface roughness increased with increasing irradiation dose. The substitution of polar groups into the surface layers of the polymers resulted in a decreased water contact angle. The observed differences in the water contact angle of untreated polymers relative to that of the treated samples can be attributed not only to the differences in their respective molecular composition but also to their distinct roughness values. The treatment conditions affected the adhesion characteristics of fibroblasts. The untreated polymer and the surfaces treated at 10.7 kGy maintained the adhesion, spreading, and proliferation of fibroblasts. The hydrophilic polymer treated at 46.5 and 106.5 kGy maintained only the initial adhesion of fibroblasts. Thus, this study shows that EB treatment is a useful tool for modifying the surface properties of UHMWPE for particular biomedical applications. For example, the initially hydrophobic surface of UHMWPE can be made either hydrophilic or moderately hydrophobic by varying the surface treatment procedure using EB.

show abstract

Laser surface modification of PEEK

Cited by 140 publications

References 16 publications

Laser Surface Texturing of Polymers for Biomedical Applications

Laser Surface Texturing of Polymers for Biomedical Applications

Aqueous lubrication and surface microstructures of engineering polymer materials (PEEK and PI) when sliding against Si3N4

Effect of Electron Beam Treatment in Air on Surface Properties of Ultra-High-Molecular-Weight Polyethylene

Contact Info

Product

Resources

About