Materials Research Express
·
2014
·Vol. 2
·期 1
·015501
·
IF 0
Guijuan Wei,Zhaojie Wang,Xixia Zhao,Juan Feng,Shutao Wang,Jun Zhang,Changhua An
In the present study, we have fabricated superhydrophobic CuO nanostructured surfaces by a simple solution-immersion process and a subsequent chemical modification with various thiol groups. The morphology of the CuO nanostructures on the copper foil could be easily controlled by simply changing the reaction time. The influences of reaction time and the thiol groups on hydrophobic properties have been discussed in detail. It is shown that the chemically modified CuO nanostructured surfaces present remarkable superhydrophobic performance and non-sticking behaviour. Furthermore, a lower corrosion current density (icorr) and a higher corrosion potential (Ecorr) of the prepared superhydrophobic surface was observed in comparison with the bare Cu foil by immersing in a 3.5 wt% NaCl solution, indicating a good corrosion resistance capability. Our work provides a general, facile and low-cost route towards the preparation of superhydrophobic surface, which has potential applications in the fields of self-cleaning, anti-corrosion, and oil–water separation.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
MATERIALS SCIENCE AND TECHNOLOGY
·
2017
·
IF 1.538
Sirong Yu,Hao Li
In this work, a simple method, including electrodeposition and chemical modification, for fabrication of a superhydrophobic and oleophobic coating on steel substrate is reported. The surface morphology of this coating showed concave structure, and the contact angles of water and glycerol on this coating surface were about 153.57° and 149.32°, respectively. In addition, the water droplet was easy to roll on this coating surface, and the sliding angle was smaller than 10°. The contact angle of the water/ethanol droplet with different surface tension, from 56 to 36 mN m−1, was also >130° on this coating surface, indicating this as superhydrophobic and oleophobic coating surface with good lyophobicity. Moreover, this coating surface had excellent non-sticking property for the water droplet under a certain external pressure, self-cleaning property and long-term stability.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2018
·
IF 2.906
Jiaoyuan Zhang,Rongrong Chen,Jingyuan Liu,Qi Liu,Jing Yu,Hongsen Zhang,Xiaoyan Jing,Milin Zhang,Jun Wang
In this work, superhydrophobic and superoleophilic nickel foam loaded with ZnO@Co 3 O 4 hierarchical structure was successfully fabricated via a simplified one-pot hydrothermal method , followed by a brief calcination process and, finally, superhydrophobically modification with hexadecyltrimethoxysilan (HDTMS). The as-prepared nickel foam showed excellent abrasion resistance , chemical stability and high oil-water separation efficiency. The chemical composition and morphologies were characterized by means of Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The sample we have manufactured proves to be a potential material for the separation of oil-water mixtures.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2018
·
IF 3.849
Mengyu Li,Ning Liu,Jinhang Chen,Qiaoling Li
Based on biological inspiration, we proposed a simple method for preparing anti-corrosion and super-hydrophobic coating. The modified TiO 2 compounded ZnO and epoxy resin were prepared by one-pot method. The surface morphology, resistance, super-hydrophobicity, repairability, impedance, wear resistance, etc. of the prepared material were performed by SEM, FTIR, electrochemical workstation, contact angle, rolling angle measuring instrument and simple homemade devices. As a result, it was found that the coating had full-thickness hydrophobicity, its WCA was up to 155.6°, and its repairability was good. Even in a harsh environment, it still had a long working life. At the same time, it had been found that the key to prolonging the anti-corrosion life of the coating lies in the reduction of the volume of the free polymer, the degree of cross-linked curing of the metal-polymer interior and its bonding with the metal substrate.
研究领域:
材料科学
·
生物学
✓ 已验证
产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2014
·
IF 2.199
Zuxin She,Qing Li,Zhongwei Wang,Cui Tan,Juncen Zhou,Longqin Li
A highly anticorrosion and self-cleaning superhydrophobic surface with hierarchical flowerlike structures fabricated on AZ91D magnesium alloy is reported in this work. The hierarchical micro/nanostructures were created through electrodeposition of Ni–Co alloy coating. Followed by modification of stearic acid, a superhydrophobic surface with a water contact angle as high as 167.3 ± 1.3° and an ultra-low sliding angle of about 1° was achieved. The anticorrosion performance of the superhydrophobic surface was studied by using a combination of potentiodynamic polarization and EIS in neutral 3.5 wt.% NaCl solutions. The superhydrophobic surface can present an excellent anticorrosion effect with the inhibition efficiency of 99.99% to the bare magnesium alloy and its corrosion rate being 0.06% of that of bare magnesium alloy. The resulting superhydrophobic surface showed excellent superhydrophobicity in a wide range of pH values from 1 to 14. Besides, the as-prepared superhydrophobic surface possessed good chemical stability and self-cleaning effect. It's believed that the highly anticorrosion and self-cleaning superhydrophobic surface can efficiently protect magnesium alloy from corrosion and expand its application scope.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
OPTICS AND LASER TECHNOLOGY
·
2017
·
IF 2.109
Yuxin Song,Cong Wang,Xinran Dong,Kai Yin,Fan Zhang,Zheng Xie,Dongkai Chu,Ji'an Duan
In this study, a facile and detailed strategy to fabricate superhydrophobic aluminum surfaces with controllable adhesion by femtosecond laser ablation is presented. The influences of key femtosecond laser processing parameters including the scanning speed, laser power and interval on the wetting properties of the laser-ablated surfaces are investigated. It is demonstrated that the adhesion between water and superhydrophobic surface can be effectively tuned from extremely low adhesion to high adhesion by adjusting laser processing parameters. At the same time, the mechanism is discussed for the changes of the wetting behaviors of the laser-ablated surfaces. These superhydrophobic surfaces with tunable adhesion have many potential applications, such as self-cleaning surface, oil–water separation, anti-icing surface and liquid transportation.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
CELLULOSE
·
2016
·Vol. 23
·期 2
·1471-1480
·
IF 3.195
Xue Chao-Hua,Zhang Lin,Wei Pengbo,Jia Shun-Tian
A flame-retardant and superhydrophobic coating was applied to cotton textiles by a conventional pad-dry-cure method, which involved the deposition of branched poly(ethylenimine), polyacrylate soap-free latex and ammonium polyphosphate. The as-coated fabrics showed superhydrophobicity with a self-cleaning effect, and the fibers could generate a char layer in the flame-burning test, giving the fabrics a self-extinguishing property. Importantly, the resulting fabrics remained superhydrophobic after 75 commercial laundering cycles. The advantages of this method are being simple, affordable and easy to use in the factory production of large quantities of multifunctional textiles.
研究领域:
材料科学
·
纺织工程
✓ 已验证
DOI
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2022
·
IF 3.898
Taoyan Mao,Runhui Xiao,Peng Liu,Jiale Chen,Junqiang Luo,Su Luo,Fengwei Xie,Cheng Zheng
Nowadays, oil contamination has become a major reason for water pollution, and presents a global environmental challenge. Although many efforts have been devoted to the fabrication of oil/water separation materials, their practical applications are still hindered by their weak durability, poor chemical tolerance, environmental resistance, and potential negative impact on health and the environment. To overcome these drawbacks, this work offers a facile method to fabricate the eco-friendly and durable oil/water separation membrane fabrics by alkaline hydrolysis and silicon polyurethane coating. The X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy results demonstrate that silicon polyurethane membrane could be coated onto the surface of hydrolyzed polyester fabric and form a micro-/nano-scaled hierarchical structure. Based on this, the modified fabric could have a stable superhydrophobic property with a water contact angle higher than 150°, even after repeated washing and mechanical abrasion 800 times, as well as chemical corrosion. Moreover, the modified fabrics show excellent oil/water separation efficiency of up to 99% for various types of oil–water mixture. Therefore, this durable, eco-friendly and cost-efficient superhydrophobic fabric has great potential in large-scale oil/water separation.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Hui Li,Sainan Miao,Wei Chen,Xixue Yang,Minhua Li,Tieling Xing,Yan Zhao,Guoqiang Chen
Fluorinated polyhedral oligomeric silsesquioxane (F-POSS) has been widely used for preparing liquid-repellent coatings. It is usually pre-synthesized and dispersed in expensive fluoro-solvent (or fluorosurfactant solution) for dip coating. Since the melting temperature of F-POSS is not high (122–140 °C), its loss during use is inevitable. However, reports on the grafting of F-POSS on substrate are rare. In this work, we report the fabrication of superhydrophobic and oleophobic cotton fabrics through the silane coupling of (heptadecafluoro-1,1,2,2-tetradecyl) trimethoxysilane (FAS) and 3-mercaptopropyltriethoxysilane (MPTES) on cotton fiber and the subsequent UV-induced thiol-ene click reaction between octavinyloctasilasesquioxane (OVPOSS) and MPTES thiols (and 1H, 1H, 2H, 2H-perfluorododecyl-1-thiol, PFDT). The as-prepared FAS/SH-F-POSS cotton fabric showed superhydrophobicity and high oleophobicity, as well as good durability and self-healing ability. It can withstand at least 15 accelerated washing cycles, 2000 abrasion cycles over sandpaper, 10 cycles of O 2 plasma etching , acid/alkaline/salt solution corrosion, and 25 cycles of UV aging/moist erosion. Such a durable superhydrophobic and oleophobic cotton fabric is useful for functional clothing and textile products in various fields.
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2023
·
IF 7.4
Ren-Yi Sun,Fang Wang,Chun-Bo Li,Ze-Peng Deng,Fei Song,Yu-Zhong Wang
Developing flame-retardant wood with integrated anti-wetting property, self-cleaning and good weatherability, has received intensive attention, which is vital to the rapid advancements in construction and building materials. Here, a superhydrophobic and flame-retardant coating is constructed based on a trinity monocomponent intumescent flame retardant , polydimethylsiloxane resin and modified SiO 2 nanoparticles. Such a coating can endow wood materials with high flame retardancy and self-cleaning performances. In comparison to pristine woods, the surface-treated wood shows a self-extinguish behavior in the vertical burning test with an obviously increased limiting oxygen index of 31.0% and UL 94 rating of V0. The peak heat release rate is reduced by 24.4% and the total heat release after surface treatment is decreased to 24.5 MJ/m 2 . The water-repellency of sample is greatly improved with water contact angle over 154° and slide angle below 5°, exhibiting appreciable resistance to dust contamination. Due to the significant anti-wetting property, the coating can effectively protect the inner flame-retardant layer from water penetration, thereby the treated wood can preserve high flame-retardant performances even after being immersed in water for 24 h. More importantly, the modified wood material can endure different harsh environmental conditions, including high temperatures, UV light irradiation, hydrothermal environment and mechanical impact, without losing the superhydrophobicity or flame retardancy, presenting high weatherability and mechanical robustness. The findings provide an effective approach to prepare high-weatherability fire-safety wood materials that have application potential in outdoor environments.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Zhipeng Deng,Kun Lv,Gang Zhu,Xuezhi Zhao,Yujun Feng
Efficient separation of oil–water mixtures, particularly homogeneous and stable emulsions, has always been an industrial challenge. Herein, we report a facile, cost-effective procedure for fabricating superhydrophobic melamine sponges using a single solution–immersion process. The modified sponge has stable superhydrophobicity owing to the synergy of triple hydrophobic mechanisms with a maximum water contact angle of 158°. As an absorbent, the modified sponge block exhibits high porosity, outstanding absorption capacity, excellent mechanical properties, and superior physical and chemical stability, enabling its use for the separation of stratified oil–water mixtures via repeated absorption–extrusion processes with a separation efficiency of nearly 100%. Furthermore, as a filter, the crushed, modified sponge powders exhibit a demulsification efficiency ranging from 97.65 to 99.33% for the separation of ideal water-in-oil emulsions under gravity. Finally, the feasibility of these sponges for oilfield applications is established through the demonstration of the continuous separation of an emulsion of brine in crude oil using the modified sponge powders in conjunction with an in-house built apparatus. This work may open a viable pathway for the efficient separation of both stratified and emulsified oil–water mixtures via wettability, and provide a novel strategy for the reuse of waste sponges.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of the Australian Ceramic Society
·
2022
·Vol. 58
·期 5
·1509-1517
·
IF 1.741
Hu Die
Polymers can be prepared into textiles via electrospinning. However, high overall property of outdoor clothing is necessary. In this work, hybridization and electrospinning were employed to fabricate fluoropolymer@bentonite hybrid textiles. Compared with fluoropolymer textile, hybrid textiles exhibit a surface superhydrophobicity ascribed to the significantly improved surface roughness of hybrid fibers, and they display high thermal stability attributed to inorganic bentonite. After acid/alkali immersion, ultraviolet radiation, or mechanical abrasion, hybrid textiles still show high water resistance, indicating strong weathering resistance. Rational material selection and electrospinning result in low surface energy, high surface roughness, and binary micro/nano hierarchical structure. Hybrid textile (with 10 wt% bentonite) shows high overall property (water contact angle of ~ 155°; thermal stability up to ~ 400 ℃; superhydrophobicity after 48 h exposing to acid, alkali, or radiation; hydrophobicity after 100 abrasion cycles). This work might pave a road for large-scale preparation of high-performance textiles for waterproof garments.
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）