Enhancement of the hydrophobicity of silk fabrics by SF6 plasma

Hodak, Satreerat K.; Supasai, Thidarat; Paosawatyanyong, Boonchoat; Kamlangkla, Kanchit; Pavarajarn, Varong

doi:10.1016/j.apsusc.2008.01.110

Cited by 80 publications

(62 citation statements)

References 17 publications

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“…The plasma composition is another parameter that can strongly affect the properties of the substrate. In some cases, not only the topography but also the surface energy can be changed in a single step, by the choice of a different kind of precursor gas 30,31 . Besides being a flexible technique, the plasma treatment can also easily be extended to an industrial scale.…”

Section: Introductionmentioning

confidence: 99%

“…Unlike the oxygen treatment, a radiofrequency signal was applied to the upper electrode, with a power of 135 W while the lower electrode remained grounded. In the plasma phase, the breaking of the SF 6 molecules produces F atoms and SF x radicals 30 . On the grounded electrode, the ion bombardment is very weak, since positive ions are attracted in the opposite direction.…”

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confidence: 99%

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Morphological and Chemical Effects of Plasma Treatment with Oxygen (O2) and Sulfur Hexafluoride (SF6) on Cellulose Surface

et al. 2018

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Cellulose is a polymer widely available in nature, however its applications may be restrict due to its hydrophilic character. The creation of hierarchical structures on the surface is one of the required factors to obtain the hydrophobicity of this material. In order to compare the morphological and chemical effects caused by the action of different gases in the creation of nanostructures on the cellulose surface, samples were exposed to oxygen (O 2 ) and sulfur hexafluoride (SF 6 ) plasma treatments. The changes in morphology after treatment prove that both the gases were able to create similar nanostructures in the material. The analysis of elemental composition and identification of functional groups on the sample surface showed that chemical modifications occurred differently for each treatment. Contact angle measurements revealed that samples treated by O 2 plasma remained hydrophilic, whereas low receptivity to polar (θ > 120º) and non-polar (θ > 100º) liquids was observed for samples exposed to SF 6 plasma.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Morphological and Chemical Effects of Plasma Treatment with Oxygen (O2) and Sulfur Hexafluoride (SF6) on Cellulose Surface

et al. 2018

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“…For this purpose, great efforts have been devoted to the surface modification of silk fabrics in order to control its properties, such as crease recovery, dyeing ability, color fastness, or hydrophobicity [1][2][3][4]. A particular interesting strategy would be to graft stimuli-responsive polymers that would turn silk textiles into a smart material that responds to changes in the environment, e.g., temperature, pH or light.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Surface Modification of Mulberry Silk Fabric via PNIPAAm/Chitosan/PEO Nanofibers Coating and Cross-Linking Technology

Wang

Lin

et al. 2018

Coatings

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Abstract:Multifunctional mulberry silk fabrics with excellent temperature-and pH-sensitivity, antibacterial properties and permeability are successfully prepared by surface modification with PNIPAAm/chitosan/poly(ethylene oxide) nanofibers. The nanofibers deposited on the surface of mulberry silk fabric are produced by the electrospinning technique. The surface properties of mulberry silk fabrics were changed by coating process and glutaraldehyde vapor cross-linking technology. The PNIPAAm/chitosan/PEO nanofibers have good apparent morphology and uniform fiber diameter. The contact angle of modified mulberry silk obviously increases with the increasing temperature. The bacterial reduction rates of modification of mulberry silk against E. coli and S. aureus all reach above 80%. Permeability test results show that it can largely improve the poor permeability of coated fabric by intelligent nanofiber modification technology. The air permeability of temperature-and pH-sensitivity mulberry silk fabric modified with PNIPAAm/chitosan/PEO nanofibers, which has reached about 5.1 × 10 2 L/m 2 /s, is higher than that of the silk fabric coated with PNIPAAm/chitosan/PEO solution that reached 1.5 × 10 2 L/m 2 /s. The nanofibers coated with mulberry silk fabrics show outstanding temperature-and pH-sensitivity, antibacterial properties and permeability, and may be a potential application in medical care, intelligent materials and textiles.

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“…It was found that plasma fed with small molecules (e.g. CF 4 , C 2 F 6 ) did not result in treatments of good durability, probably for the formation of short polymer segments dangling on the treated surface [11]. For example, a coating with F/C ratio of 1.04 deposited on silk and cotton in plasma fed with C 3 F 6 shows a good hydrophobic character (water contact angle, WCA higher than 120˚), but suffers a partial loss after waterwashing and alcohol-extraction.…”

Section: Introductionmentioning

confidence: 99%

“…Several research groups investigated the hydrophobicity enhancement of polymers and fabrics using plasmas fed with fluorocompounds, e.g. tetrafluoromethane (CF 4 ) [10], sulphur exafluoride (SF 6 ) [11], exafluoroethane (C 2 F 6 ) [12], exafluoropropene (C 3 F 6 ) [13], etc. It was found that plasma fed with small molecules (e.g.…”

Section: Introductionmentioning

confidence: 99%

Plasma Treatment for Preparing Durable Water Repellent and Anti-Stain Synthetic Fabrics for Automotive Applications

Vietro¹,

Belforte²,

Lambertini³

et al. 2015

JSEMAT

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This paper describes the development of a plasma process to produce a durable water repellent and anti-stain thin film on synthetic textile, utilized for the upholstery in the automotive field. The coatings were deposited in non equilibrium low pressure plasmas fed with 1H, 1H, 2H-perfluo-ro-1-decene employing, as substrates, polyethylene terephthalate and polyethylene terephthalate thermo-coupled to polyurethane foam. It was found that the XPS F/C ratio of the deposit was higher than 1.4 and that the treated textile was always very hydrophobic (WCA > 140˚) and oil resistant (motor oil CA > 110˚), even after wear.

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Enhancement of the hydrophobicity of silk fabrics by SF6 plasma

Cited by 80 publications

References 17 publications

Morphological and Chemical Effects of Plasma Treatment with Oxygen (O2) and Sulfur Hexafluoride (SF6) on Cellulose Surface

Morphological and Chemical Effects of Plasma Treatment with Oxygen (O2) and Sulfur Hexafluoride (SF6) on Cellulose Surface

Multifunctional Surface Modification of Mulberry Silk Fabric via PNIPAAm/Chitosan/PEO Nanofibers Coating and Cross-Linking Technology

Plasma Treatment for Preparing Durable Water Repellent and Anti-Stain Synthetic Fabrics for Automotive Applications

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