Femtosecond laser ablation of polypropylene: A statistical approach of morphological data

Belaud, Vanessa; Valette, S.; Stremsdoerfer, G.; Beaugiraud, B.; Audouard, Éric; Benayoun, Stéphane

doi:10.1002/sca.21090

Cited by 16 publications

(8 citation statements)

References 18 publications

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“…Belaud et al created micro-and nano-sized structures on PP surfaces using fs laser pulses [57,98]. A infrared laser beam (Ti:Sapphire laser, λ = 800 nm), with a short pulse duration (130 fs in pulse length), was used in this study.…”

Section: Polypropylene (Pp)mentioning

confidence: 99%

Laser Surface Texturing of Polymers for Biomedical Applications

et al. 2018

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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.

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Section: Polypropylene (Pp)mentioning

confidence: 99%

Laser Surface Texturing of Polymers for Biomedical Applications

et al. 2018

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“…Several authors have shown that wettability is affected by the surface topography [3,24] and that wetting measurements can help to characterize surface modifications. Wetting measurements were made on PP replicas.…”

Section: Wettabilitymentioning

confidence: 99%

“…This technique can be used directly on polymer or metallic surfaces [1]. Recent studies focused on how femtosecond laser parameters affected the texturing of polymers, such as poly (ether ether ketone) (PEEK) and polypropylene (PP) [2,3]. However, surface laser texturing has a significant drawback; it is a time-consuming process.…”

Section: Introductionmentioning

confidence: 99%

Influence of the polypropylene structure on the replication of nanostructures by injection molding

Vera

Brulez

Contraires

et al. 2015

J. Micromech. Microeng.

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In this paper, an experimental study of replication by injection molding of sub-micrometer features is presented. Two polypropylenes with different melt flow rates (MFR) were used throughout this study. The used removable mold insert was textured with a femtosecond laser. Replication of these periodic structures, called ripples, is thus investigated. Despite different MFR, we show that the viscosities of the two polymers at the investigated temperatures and injection shear rates are similar. The reproducibility of the injected molded samples and the texture of the mold were analyzed. We propose a specific methodology to quantify the reproducibility quality replicas. The latter introduces morphological parameters such as anisotropy rate, power density, etc. A difference between the two replicas was noticeable. Based on rheological analysis, the viscosity was ruled out as the origin of this difference. Other properties were identified as the source such as the chain length and the stress relaxation time. Their impact on the replication quality was investigated and found interesting.

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“…The contamination of the process is easily avoided, offers high processing speed, easy automation, and the possibility to treat large areas by controlling the parameters of the laser process [18]. Therefore, laser technology has been used for surface modifications of materials, especially polymers like ultra-High-Molecular-Weight Polyethylene (UHMWPE) [19][20][21], polypropylene (PP) [22,23], Polyethylene (PE) [24,25], Polycarbonate (PC) [26,27], polytetrafluoroethylene (PTFE) [28], Polyimide (PI) [29] and PEEK, in some studies [30].…”

Section: Introductionmentioning

confidence: 99%

PEEK surface modification methods and effect of the laser method on surface properties

2020

Biointerface Res Appl Chem

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Polyether ether ketone (PEEK) is one the most interesting polymeric materials used in the industry today, such as aerospace, nuclear reactors, polymer electrolyte membranes and especially in biomedical applications like bone implants. PEEK’s desirable properties like mechanical strength, biocompatibility, chemical resistance, radiation resistance and high thermal stability in the body make this suitable polymer choice for a bone implant. Besides these useful properties, PEEK is bio-inert in the biological environment, which is a big problem in implant application. Fortunately, there are several methods to improve the surface bioactivity of such materials. Here surface modification methods of the PEEK, including laser and their effect on the surface bioactivity were studied. Laser techniques are one of the exciting methods for PEEK surface modification because of being a secure processing method, time-consuming, easy to control the laser parameter, which leads to the control of surface properties. Several kinds of laser with different settings is used for the enhancement of the surface of PEEK, were described here. Here different surface modification techniques to enhance the adhesion and wettability of the PEEK surface studied. Along with varying categories of laser were introduced and different laser methods, which used for PEEK surface treatment is collected, that is the exciting point of this review paper.

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Femtosecond laser ablation of polypropylene: A statistical approach of morphological data

Cited by 16 publications

References 18 publications

Laser Surface Texturing of Polymers for Biomedical Applications

Laser Surface Texturing of Polymers for Biomedical Applications

Influence of the polypropylene structure on the replication of nanostructures by injection molding

PEEK surface modification methods and effect of the laser method on surface properties

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