Low-frequency plasma activation of nylon 6

Thompson, Richard A.; Austin, David; Wang, Chun; Neville, Anne; Lin, Long

doi:10.1016/j.apsusc.2021.148929

Cited by 30 publications

(14 citation statements)

References 56 publications

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“…It is possible to observe that the sample surface is characterized by a very irregular profile, with several peaks and valleys. Moreover, the R a value, obtained as the arithmetic average of profile points vertical distance from the mean line, is significantly higher than typical values obtained for nylon realized with traditional techniques, i.e., even below 1 µm [47]. The high measured roughness could promote cracks development and reduces the sample mechanical proprieties.…”

Section: Mechanical Testmentioning

confidence: 75%

Effect of induced plastic strain on the porosity of PA12 printed through selective laser sintering studied by X-ray computed micro-tomography

Morano

Crocco

Formoso

et al. 2023

Int J Adv Manuf Technol

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3D printing is a widespread technology in different fields, such as medicine, construction, ergonomics, and the transportation industry. Its diffusion is related to the ability of this technique to produce complex parts without needing for assembly of different components or post-processing. However, the quality of the parts produced by additive manufacturing could be affected by the fabrication process, thus leading to the development of different kinds of defects such as porosity or inclusions. Understanding the role played by these defects and promoting strategies that could help reduce their occurrence represents a key point to allow using 3D printing for structural applications. In this work, 3D printed parts have been subjected to porosity characterization by using experimental tests on Dogbones samples subjected to plastic deformation. In particular, X-ray computed micro-tomography (µ-CT) has been employed as an investigation tool for the identification of fabrication defects and for analyzing the crack growth mechanism that occurs after subjecting samples to quasi-static loading conditions.

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Section: Mechanical Testmentioning

confidence: 75%

Effect of induced plastic strain on the porosity of PA12 printed through selective laser sintering studied by X-ray computed micro-tomography

Morano

Crocco

Formoso

et al. 2023

Int J Adv Manuf Technol

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“…Plasma modification is a solvent-free method used to alter the surface chemistry of a polymer, without changing its' bulk properties. The introduction of surface functional groups, such as OH, COOH, NH 2 , and radicals, functionalizes the polymer surface, [74] altering surface properties such as wettability, polarity, protein adsorption and, in doing so, improving cellular behavior. [75] Lie et demonstrate the introduction of oxygen-containing groups to PLLA nanofibers using plasma treatment.…”

Section: Assembly Of Suspended Nanofiber Sheetsmentioning

confidence: 99%

Biobased Elastomer Nanofibers Guide Light‐Controlled Human‐iPSC‐Derived Skeletal Myofibers

et al. 2022

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“…It shows much higher efficiency than other established methods. For example, Thompson et al [83] employed the low-pressure oxygen plasma activation for surface hydrophilicity of nylon 6. The 40 s treatment time led to the WCA changing from the untreated 63.2° to oxygen plasma-treated 38.4° (Figure 5(a)) [83].…”

Section: Surface Wettability Control By Plasma Engineeringmentioning

confidence: 99%

“…For example, Thompson et al [83] employed the low-pressure oxygen plasma activation for surface hydrophilicity of nylon 6. The 40 s treatment time led to the WCA changing from the untreated 63.2° to oxygen plasma-treated 38.4° (Figure 5(a)) [83]. The enhanced surface hydrophilicity was attributed to plasma-introduced oxygen-functional groups (–C–OH, –C=O, –COOH) rather than the surface topographies.…”

Section: Surface Wettability Control By Plasma Engineeringmentioning

confidence: 99%

Plasma-controlled surface wettability: recent advances and future applications

Nikiforov

Hegemann

et al. 2022

International Materials Reviews

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Materials with the desirable surface wettability are of key importance in diverse applications. However, most of the existing chemical processes used for surface wettability control are often energy-inefficient, pollute the environment, and rely on harsh processing conditions. Therefore, highly-selective, green, and low-cost alternative fabrication techniques are in urgent demand. Low-temperature plasma processing is one such promising approach that satisfies the above requirements. In this review, we present recent advances in plasma processing to control surface wettability for diverse emerging applications in the environment, energy, and biomedicine fields. The underlying mechanisms of the plasma surface engineering, key features of the fabrication processes, and water-surface interactions are discussed. This review aims to guide further development of the plasma processing to effectively control the surface wettability of various surfaces. This effort is poised to contribute to the development of advanced functional materials targeting a broad range of applications.

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Low-frequency plasma activation of nylon 6

Cited by 30 publications

References 56 publications

Effect of induced plastic strain on the porosity of PA12 printed through selective laser sintering studied by X-ray computed micro-tomography

Effect of induced plastic strain on the porosity of PA12 printed through selective laser sintering studied by X-ray computed micro-tomography

Biobased Elastomer Nanofibers Guide Light‐Controlled Human‐iPSC‐Derived Skeletal Myofibers

Plasma-controlled surface wettability: recent advances and future applications

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