Roll-to roll initiated chemical vapor deposition of super hydrophobic thin films on large-scale flexible substrates

Şakalak, Hüseyin; Yılmaz, Kurtuluş; Gürsoy, Mehmet; Karaman, Mustafa

doi:10.1016/j.ces.2019.115466

Cited by 62 publications

(29 citation statements)

References 43 publications

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“…This observation is consistent with the literature on the vapor-based deposition methods. 44 Bamboo fabric is known for its superhydrophilicity, when the water was dropped on its surface, the uncoated bamboo surface exhibited superhydrophilicity and as expected its surface (Figure 7(e)). When water was dropped on the PI coated bamboo fabric, the bamboo surface did not wet due to the hydrophobic nature of PI.…”

Section: Film Structuressupporting

confidence: 57%

Vapor deposition polymerization of synthetic rubber thin film in a plasma enhanced chemical vapor deposition reactor

Gürsoy

2020

J of Applied Polymer Sci

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Rubber is one of the most commonly used industrial materials worldwide. However, there is a gap in the literature on the production of rubber thin films in nanoscale. When the rubber thin films are produced in nanoscale, they can be used in high-tech applications where bulk rubbers have never been used before. This study is one of the first investigations to focus on the vapor-based production of the polyisoprene (PI), which is an important member of the synthetic rubber class. For this purpose, a single-step, rapid and environmentally friendly method based on plasma enhanced chemical vapor deposition (PECVD) was employed to produce PI thin films using 2-methyl-1,3-butadiene (isoprene). The high-vapor pressure of isoprene makes it a promising monomer for the production of chemical vapor deposition polymers. The effect of plasma processing parameters on the PI deposition rate was investigated. The deposition rate of PI thin film as high as 40 nm/min was achieved and the contact angle of PI coated bamboo surface was found to be 146.8. The mechanical durability and laundering tests of PI thin films were performed. Based on this study results, PI thin films produced by PECVD can be used in a number of potential applications.

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Section: Film Structuressupporting

confidence: 57%

Vapor deposition polymerization of synthetic rubber thin film in a plasma enhanced chemical vapor deposition reactor

Gürsoy

2020

J of Applied Polymer Sci

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“…Compared to the control PU, both PU/PPFDA i and PU/PHFBA show higher peak intensities at 1205 cm −1 (symmetric stretching of -CF 2 ) and 1148 cm −1 (-CF 2 -CF 3 end group) [ 23 , 24 ], indicating the PU surface is successfully functionalized. Characteristic peaks belonging to HFBA such as 1385 cm −1 , 1295 cm −1 , and 964 cm −1 correspond to C-H bending and asymmetric stretching of -CF 2 and -CF vibration [ 23 , 25 ], respectively, are also observed on the PU/PHFBA. Nevertheless, it must be pointed out that these characteristics are not found in the PU/PHFBA i that is also composed of HFBA but deposited using a different technique (i.e., iCVD).…”

Section: Resultsmentioning

confidence: 99%

A Green Approach to Modify Surface Properties of Polyurethane Foam for Enhanced Oil Absorption

Roslan

Lau

et al. 2020

Polymers

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The non-selective property of conventional polyurethane (PU) foam tends to lower its oil absorption efficiency. To address this issue, we modified the surface properties of PU foam using a rapid solvent-free surface functionalization approach based on the chemical vapor deposition (CVD) method to establish an extremely thin yet uniform coating layer to improve foam performance. The PU foam was respectively functionalized using different monomers, i.e., perfluorodecyl acrylate (PFDA), 2,2,3,4,4,4-hexafluorobutyl acrylate (HFBA), and hexamethyldisiloxane (HMDSO), and the effect of deposition times (1, 5 and 10 min) on the properties of foam was investigated. The results showed that all the modified foams demonstrated a much higher water contact angle (i.e., greater hydrophobicity) and greater absorption capacities compared to the control PU foam. This is due to the presence of specific functional groups, e.g., fluorine (F) and silane (Si) in the modified PU foams. Of all, the PU/PHFBAi foam exhibited the highest absorption capacities, recording 66.68, 58.15, 53.70, and 58.38 g/g for chloroform, acetone, cyclohexane, and edible oil, respectively. These values were 39.19–119.31% higher than that of control foam. The promising performance of the PU/PHFBAi foam is due to the improved surface hydrophobicity attributed to the original perfluoroalkyl moieties of the HFBA monomer. The PU/PHFBAi foam also demonstrated a much more stable absorption performance compared to the control foam when both samples were reused for up to 10 cycles. This clearly indicates the positive impact of the proposed functionalization method in improving PU properties for oil absorption processes.

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“…In view of the shortcoming of poor dimensional stability, shrinkage, moisture swelling, and its high susceptibility to fungal degradation, several treatment methods such as heat treatment, [6][7][8] acetylation treatment 9 and surface nishing with coatings 10 have been applied so as to improve the dimensional stability and surface hydrophobicity of bamboo materials. Among which, heat treatment is an excellent method of improving integrated performance of bamboo materials.…”

Section: Introductionmentioning

confidence: 99%

“…43440 | RSC Adv., 2020,10,[43438][43439][43440][43441][43442][43443][43444][43445][43446] This journal is © The Royal Society of Chemistry 2020RSC Advances Paper Open Access Article. Published on 08 December 2020.…”

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confidence: 99%

Evaluating the comprehensive influences of heat treatment and polydimethylsiloxane on integrated performance of bamboo timber

Zhang

et al. 2020

RSC Adv.

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Roll-to roll initiated chemical vapor deposition of super hydrophobic thin films on large-scale flexible substrates

Cited by 62 publications

References 43 publications

Vapor deposition polymerization of synthetic rubber thin film in a plasma enhanced chemical vapor deposition reactor

Vapor deposition polymerization of synthetic rubber thin film in a plasma enhanced chemical vapor deposition reactor

A Green Approach to Modify Surface Properties of Polyurethane Foam for Enhanced Oil Absorption

Evaluating the comprehensive influences of heat treatment and polydimethylsiloxane on integrated performance of bamboo timber

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