Transparent, thermal stable and hydrophobic coatings from fumed silica/fluorinated polyacrylate composite latex via in situ miniemulsion polymerization

Zhao, Fuchun; Guan, Jie; Bai, Wanna; Gu, Tingting; Liao, Shuangquan

doi:10.1016/j.porgcoat.2019.02.013

Cited by 19 publications

(9 citation statements)

References 41 publications

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“…The C 1 speak was disassembled into six components: CF 3 at 292.5 eV, CF 2 at 290.3 eV, CO at 287.7 eV, C–O at 285.6 eV, C–C(H) at 284.6 eV, and C–Si at 293.4 eV. The high-resolution spectrum of C 1s further verified that the attached FAS molecules were the major contents of the laser-induced IN304 surface after the fluorination process, which accounts for the formation of superhydrophobicity: the functional groups CF 3 , CF 2 , and C–C(H) on FAS molecules vastly lowered the surface energy …”

Section: Resultsmentioning

confidence: 77%

“…Chemical Composition. As shown in Figure 3a and b, the X-ray photoelectron spectroscopy (XPS) spectra of both 51 Surface Wettability. As shown in Figure 4, WCAs and WSAs were used to evaluate the wetting performances of primary IN304 steel samples, stearic acid-modified superhydrophobic surface, and FAS-modified superhydrophobic surface.…”

Section: ■ Experimental Methodsmentioning

confidence: 99%

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A Contrastive Investigation on the Anticorrosive Performance of Stearic Acid and Fluoroalkylsilane-Modified Superhydrophobic Surface in Salt, Alkali, and Acid Solution

et al. 2020

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Stearic acid and fluoroalkylsilane are widely used in chemical modification to fabricate superhydrophobic surfaces in corrosion-resistant exploration. However, extensive works have just explored their anticorrosive performance in salt solution. Very rare work has focused on comparing their corrosion-resistant performance in corrosive solution (salt, alkali, and acid) systematically. In this study, two kinds of superhydrophobic surfaces were obtained on laser-processed rough IN304 surface after the stearic acid and FAS modification processes, respectively. The investigation and comparison of anticorrosion performance in salt, alkali, and acid electrolyte were carried out via potentiodynamic polarization and electrochemical impedance spectroscopy measurements. The promotion mechanism or impairing mechanism was further proposed based on the results of surface wettability, surface morphology, and X-ray photoelectron spectroscopy. Besides, the long-term anticorrosion performance and the stability of surface wettability were also investigated. It is hoped that these research findings could provide an explicit guidance of suitable anticorrosion methods selection for metals in different kinds of corrosive solution (salt, alkali, and acid), which will further raise the promising prospect of functional surfaces for practical applications in industry.

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Section: Resultsmentioning

confidence: 77%

Section: ■ Experimental Methodsmentioning

confidence: 99%

A Contrastive Investigation on the Anticorrosive Performance of Stearic Acid and Fluoroalkylsilane-Modified Superhydrophobic Surface in Salt, Alkali, and Acid Solution

et al. 2020

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“…Zheng Chao et al used in situ surface modification technology to prepare a series of nano‐SiO 2 by surface modification with silane coupling agent HMDS and hexadecyltrimethoxysilane. Comparative study the effects of nano‐SiO 2 modified by silane coupling agent on the thermal stability, apparent viscosity and oil displacement performance of polyacrylamide 18 ; Fuchun Zhao et al prepared nanometer SiO 2 /fluorinated polyacrylate latex particles through in‐situ emulsion polymerization using HMDS modified commercial hydrophilic silica, and investigated the effect of emulsifier on reaction stability and compound latex stability 19 …”

Section: Introductionmentioning

confidence: 99%

“…Comparative study the effects of nano-SiO 2 modified by silane coupling agent on the thermal stability, apparent viscosity and oil displacement performance of polyacrylamide 18 ; Fuchun Zhao et al prepared nanometer SiO 2 /fluorinated polyacrylate latex particles through in-situ emulsion polymerization using HMDS modified commercial hydrophilic silica, and investigated the effect of emulsifier on reaction stability and compound latex stability. 19 The current methods for preparing superhydrophobic composite materials include the etching method, 20 chemical deposition, 21 optical coating method, 22 layer-by-layer assembly, 23 plasma technology method, 24 and so forth.…”

Section: Introductionmentioning

confidence: 99%

Preparation and study of stable fluorine‐free superhydrophobicity of cotton fibers

Xiao

Wang

Huang

2021

J of Applied Polymer Sci

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This paper proposes a method of directly modifying the surface of cotton fiber to achieve super‐hydrophobic properties. The process was directly utilized the long‐chain alkyl siloxane and the nano‐SiO2 modified cotton cloth, which was simple to operate, low in cost and environmentally friendly. This study discussed the influence of solvent ratio, reactant content and ammonia content on hydrophobicity. The solvent ratio had the greatest influence, and the maximum water contact angle (CA) changes were70° ± 1°. The maximum water CA of the superhydrophobic cotton fabric prepared after process selection was 162 ± 1.5°; it had good acid, alkali and salt resistance. After 24 h in a solution with a pH of 1–14, CA remained almost unchanged; After 144 h in a 3.5% salt solution, CA stabilized above 132°; it had self‐cleaning properties; it had good selective adsorption performance, which can quickly separate oil and water; it had good mechanical stability. After 300 times abrasion of sandpaper, which still shows hydrophobic properties.

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“…Nanosilica-latex is compounded from organic latex and inorganic nano-SiO 2 . Therefore, the nanosilica-latex has both characteristics of latex and SiO 2 and is also a rapidly developing field in polymer material science in recent years. − On the basis of above analyses, in order to further improve the corrosion resistance of oil well cement, this study designed and synthesized soap-free latex (PSAC), which combined the advantages of SiO 2 and latex by using SSS and nano-SiO 2 (SSS/SiO 2 ) as ionic copolymer composite emulsifiers and using styrene (St), butyl acrylate (BA), and methyl methacrylate (MMA) as monomers. In terms of the latex performance, nano-SiO 2 could improve the chemical stability and thermal stability of latex.…”

Section: Introductionmentioning

confidence: 99%

Study on the Preparation and Anti-CO₂ Corrosion Performance of Soap-Free Latex for Oil Well Cement

et al. 2020

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To improve the resistance to CO 2 corrosion of oil well cement, soap-free emulsion polymerization was used to prepare a soap-free latex (PSAC) with sodium styrene sulfonate (SSS) and nano-SiO 2 (SSS/SiO 2 ) as the ionic copolymer emulsifier. The effects of SSS/SiO 2 on the performance, thermal stability, and latex particle morphology of the PSAC were investigated through zeta potential, TGA, and TEM measurements, respectively. The carbonation resistance properties of cement with PSAC were evaluated, and the anticorrosion mechanism of the PSAC cement was determined by SEM, EDS, XRD, and 29 Si NMR analyses. The results showed that the PSAC particle size was uniform, the particles were monodispersed, and they had a typical core–shell structure and good heat resistance. The carbonation resistance test results showed that after 60 days of corrosion, the corrosion depth of the cement with 12.0% PSAC content was only 2.16 mm, the permeability was 0.0018 mD, and the decrease in the compressive strength was 6.65%. The porosity in the cement was reduced significantly, and the pore volume (>50 nm) of the cement was reduced by 0.24 times. The PSAC film formation decreased the contact between hydration products and CO 2 . In addition, the nano-SiO 2 in the PSAC reacted with Ca(OH) 2 to reduce the free Ca(OH) 2 content in the cement and generate C–S–H gel with a low Ca/Si ratio and high polymerization, which did not react as readily with CO 2 .

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Transparent, thermal stable and hydrophobic coatings from fumed silica/fluorinated polyacrylate composite latex via in situ miniemulsion polymerization

Cited by 19 publications

References 41 publications

A Contrastive Investigation on the Anticorrosive Performance of Stearic Acid and Fluoroalkylsilane-Modified Superhydrophobic Surface in Salt, Alkali, and Acid Solution

A Contrastive Investigation on the Anticorrosive Performance of Stearic Acid and Fluoroalkylsilane-Modified Superhydrophobic Surface in Salt, Alkali, and Acid Solution

Preparation and study of stable fluorine‐free superhydrophobicity of cotton fibers

Study on the Preparation and Anti-CO₂ Corrosion Performance of Soap-Free Latex for Oil Well Cement

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Transparent, thermal stable and hydrophobic coatings from fumed silica/fluorinated polyacrylate composite latex via in situ miniemulsion polymerization

Cited by 19 publications

References 41 publications

A Contrastive Investigation on the Anticorrosive Performance of Stearic Acid and Fluoroalkylsilane-Modified Superhydrophobic Surface in Salt, Alkali, and Acid Solution

A Contrastive Investigation on the Anticorrosive Performance of Stearic Acid and Fluoroalkylsilane-Modified Superhydrophobic Surface in Salt, Alkali, and Acid Solution

Preparation and study of stable fluorine‐free superhydrophobicity of cotton fibers

Study on the Preparation and Anti-CO2 Corrosion Performance of Soap-Free Latex for Oil Well Cement

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Product

Resources

About

Study on the Preparation and Anti-CO₂ Corrosion Performance of Soap-Free Latex for Oil Well Cement