ACS Applied Engineering Materials
·
2025
·
IF 3.5
Qian Su,Kangli Yang,Zhiqing Yuan,Cancheng Li,Shoutong Meng,Xuyu Long,Rui He
To address the poor water resistance and dust susceptibility of carbon fiber board, a simple and efficient spraying method was used to prepare a superhydrophobic coating on the carbon fiber board that was resistant to dust and ice. First, a hydrolyzed solution of KH550 was applied and cured to the carbon fiber board. Then, a solution was prepared by mixing silicone rubber (XC-107) with γ-aminopropyltriethoxysilane (KH550) in ethyl acetate. This solution was divided into three glass beakers. The first beaker kept the original solution unchanged. Nanometer silica (Nano-SiO2) was introduced into the solution in the second glass beaker, while ethyl acetate was added to dilute the solution in the third glass beaker. Finally, the prepared solutions were sequentially sprayed onto the surface of the carbon fiber board according to the order of the glass beakers. The results indicate that the dust removal efficiency of the superhydrophobic carbon fiber board reaches 98.36%, which is an improvement of 9.45% compared to ordinary carbon fiber board, with a water contact angle (WCA) of 158°. Meanwhile, in the anti-icing test, the icing time of the superhydrophobic carbon fiber board is delayed by more than four times compared to ordinary carbon fiber board. Compared to other similar superhydrophobic carbon fiber boards, this superhydrophobic carbon fiber board features a simple and efficient preparation method, is easy to produce on a large scale, has low cost, uses commonly available materials, and offers strong scalability while possessing characteristics such as dust resistance, anti-icing, abrasion resistance, and sandstorm resistance. This indicates that the superhydrophobic carbon fiber board can be used in many different fields, such as structural components of aircraft and spacecraft, body and interior parts of vehicles, bicycle frames, badminton and tennis rackets, bridges, medical devices, enclosures, and components for electronic products, bulletproof armor, drones, and more.
研究领域:
材料科学
·
表面工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Xiaojing Su,Hongqiang Li,Xuejun Lai,Zhonghua Chen,Xingrong Zeng
Superhydrophobic materials integrating stretchability with conductivity have huge potential in the emerging application horizons such as wearable electronic sensors, flexible power storage apparatus, and corrosion-resistant circuits. Herein, a facile spraying method is reported to fabricate a durable superhydrophobic coating with excellent stretchable and electrical performance by combing 1-octadecanethiol-modified silver nanoparticles (M-AgNPs) with polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene (SEBS) on a prestretched natural rubber (NR) substrate. The embedding of M-AgNPs in elastic SEBS matrix and relaxation of prestretched NR substrate construct hierarchical rough architecture and endow the coating with dense charge-transport pathways. The fabricated coating exhibits superhydrophobicity with water contact angle larger than 160° and a high conductivity with resistance of about 10 Ω. The coating not only maintains superhydrophobicity at low/high stretch ratio for the newly generated small/large protuberances but also responds to stretching and bending with good sensitivity, broad sensing range, and stable response cycles. Moreover, the coating exhibits excellent durability to heat and strong acid/alkali and mechanical forces including droplet impact, kneading, torsion, and repetitive stretching–relaxation. The findings conceivably stand out as a new tool to fabricate multifunctional superhydrophobic materials with excellent stretchability and conductivity for flexible electronics under wet or corrosive environments.
研究领域:
材料科学
·
纳米技术
·
表面工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Magnesium and Alloys
·
2020
·
IF 7.115
Lingjie Li,Xia Li,Jinlong Chen,Lei Liu,Jinglei Lei,Nianbing Li,Gao Liu,Fusheng Pan
The robust magnesium surfaces with multi-functions are highly desirable, and the simple and scalable methods to construct such surfaces are urgently indispensable. Herein, we conducted a one-step spraying method to facilely fabricate the robust coating with multi-functions on magnesium alloys. The as-sprayed magnesium alloys surface is superhydrophobic with a static water contact angle (WCA) of 157.0° and a roll-off angle of 6.0°. Such surface has excellent mechanical, chemical and thermal stabilities, even undergoing various physical and chemical damages, including sand impact (10 g min −1 , ≥20 min), water impact (2 impacts s −1 , ≥ 180 min), abrasion (1.00 kPa, ≥25 cycles), peeling (≥2.15 kPa), high temperature (200 °C, ≥24 h), strong acidic/salty/basic media (pH = 1∼13) and organic-solvent immersion (ethanol and n-hexane, ≥24 h), demonstrating brilliant robustness. Notably, the surface displays multi-functions of corrosion protection, anti-fouling and heat insulation, which will undoubtedly promote the much wider applications of magnesium alloys.
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
Sensor Letters
·
2016
·Vol. 14
·期 4
·369-375
·
IF 0
Youwang Hu,Chengzhi Xu,Ji'an Duan,Jiwen Xiang,Shu Wang,Xiaoyan Sun
Surface Acoustic Wave (SAW) sensors have received great attention because of their compact design and excellent sensing performance, including high sensitivity, low detection limits. However, SAW sensors generally suffer from low quality of the solid thin films which has a significant
effect to the detection performance of the sensors. To solve this problem, three different methods (spin coating, drop coating and spray coating) for fabricating thin films have been investigated for gaseous nitrogen dioxide (NO2) SAW sensors in this work. Spray coating method showed
its advantages in improving the solid film quality of the sensing layer and the performance of the sensors. SEM characterization shows that the spray coating films are more uniform and poly-porous. Sensors with spray coating film can detect NO2 range from sub ppm to hundreds ppm
with high sensibility and stability. Its sensitivity is 42.31 Hz/ppm and its sensing limit is down to 57.2 ppb.
研究领域:
材料科学
·
环境监测
·
传感器技术
✓ 已验证
DOI
JOURNAL OF MEMBRANE SCIENCE
·
2019
·
IF 7.015
Ji-Hao Zuo,Yi-Hang Gu,Chao Wei,Xi Yan,Yan Chen,Wan-Zhong Lang
Janus membrane is an emerging separation material due to its unique separation performance. The asymmetric surface wettability on its two surfaces is crucial for a Janus membrane. In this work, robust Janus polyvinylidene fluoride (PVDF) membranes were prepared via thermal induced phase separation (TIPS) accompanied with spray-coating method. The two surfaces of TIPS-prepared PVDF membranes were rapidly deposited with polydopamine/polyethyleneimine (PDA/PEI) and micro-/nano-scale silica particles crosslinking with diphenyldichlorosilane respectively. The spray-coating endows the Janus membranes with superhydrophilicity and superhydrophobicity on its opposite surfaces. The optimized membrane of M-A0.9B0.2 presents an asymmetric surface wettability. Its hydrophilic surface has a water contact angle (WCA) of 11.2°, while the hydrophobic surface has a WCA of 169.9° as well as a sliding angle of <1°. The superhydrophilic surface allows water to quickly pass through the membrane and oil phase is trapped; while oil can penetrate through the membrane and water is rejected by the superhydrophobic surface. The Janus membranes show excellent separation performance with the highest permeation of 2060.5 L m −2 h −1 ·bar −1 accompanied with above 94.0% oil rejection for toluene-in-water emulsion and the highest permeation of 1769.0 L m −2 h −1 ·bar −1 accompanied with above 97.0% water rejection for water-in-toluene emulsion using the opposite surfaces.
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
SURFACE AND INTERFACE ANALYSIS
·
2018
·
IF 1.263
Changquan Li,Chan Xie,Junfei Ou,Mingshan Xue,Fajun Wang,Sheng Lei,Xinzuo Fang,Haoyu Zhou,Wen Li
The attachment of microbial biomass on solid surfaces, also referred to as biofouling, is a universal phenomenon that occurs in natural and engineering systems. However, traditional antibiofouling surfaces based on either the release of biocidal compounds or surface chemical/physical design have some drawbacks, such as the high cost, the complicated process, the low accuracy, and the limitation to achieve coatings over large area. Herein, to overcome these problems, a superhydrophobic coating is fabricated via spraying the mixture of hydrophobized zinc oxide nanoparticles and epoxy resin. The zinc oxide nanoparticles form a multiscale roughness, and the epoxy resin promotes the robustness of the coating. The so-formed superhydrophobic coating resists the attachment of protein, bacteria, and marine algae. It is expected that the so-developed superhydrophobic coating can be applied in the fields of biomedical instruments, antimicrobial material, marine platform, and ships.
研究领域:
材料科学
·
生物学
·
海洋工程
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Yongwei Ma,Qiang He
Paper-based materials are widely used in agriculture, industry and daily life because of their biodegradability , sustainability, biocompatibility and low cost. However, due to the hydrophilic nature of plant fibers in paper-based materials, the mechanical properties of paper will be reduced after absorbing water, thus limiting its application field. In this paper, carbon nanotubes/polydimethylsiloxane (CNT/PDMS) films with hydrophobicity and conductivity were prepared on filter paper by foam spraying method. Firstly, CNT and PDMS were added into water and stirred vigorously, and CNT/PDMS foam homogenate was prepared by foaming agent and stabilizer . Then, the homogenate was sprayed on the filter paper with a spray gun, and the multilevel rough structure was prepared on the paper. The results showed that the contact angle of the sample surface is greater than 150° when the spraying amount is 0.4-CNT, 0.6-CNT and 0.8-CNT, and the contact angle of 0.6-CNT is 156.33°, which is the largest. The drops on the surface of the sprayed sample have good bounce and self-cleaning performances. In addition, benefiting from the excellent conductivity of CNT, the particles composed of CNT and PDMS contact each other on the surface of the sample, forming a conductive network. The aforementioned properties will broaden the application scenarios of paper-based superhydrophobic materials.
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
RSC Advances
·
2016
·Vol. 6
·期 52
·47096-47100
·
IF 3.289
Kejun Lin,Duyang Zang,Xiaoguang Li,Xingguo Geng
We study the preparation of superhydrophobic polytetrafluoroethylene (PTFE) coating by a spraying method with copper mesh and aluminum plate substrates. The hydrophobicity and toughness of the resulting surfaces are investigated using water contact angles, sliding angles, rubbing tests, and impact experiments. The heat treatment is found to be the key to adjusting the microstructure as well as the wettability. Sufficient heat accumulation at 230 °C through 50 min sintering gives rise to a hierarchical structure characterised by micro spheres with lots of nanopores on their surfaces, leading to excellent water repellence proved by the large contact angle, and small sliding angle, and the complete water drop rebounce. Insufficient heat accumulation with less than 20 min sintering at 230 °C results in micro spheres without nanopores; the resulting surface presents weak water repellence in all the property tests. In addition, the porous substrate of copper mesh is proved feasible for the spraying preparation of a tough superhydrophobic surface, although it is not as good as the continuous substrate of aluminum plates.
研究领域:
材料科学
·
表面工程
·
高分子材料
·
纳米科技
·
物理化学
✓ 已验证
DOI
高影响因子
Materials Today Communications
·
2024
·
IF 3.7
Yuze Du,Yong Zheng,Xi Zhang,Yufan Li,Yuqi Huang,Zhenke Fan
Herein, a new durable superhydrophobic coating was prepared using the preset grid-spraying method which was low cost and simple. To achieve the regular continuous grid structure which had protection and support function to the coatings, the sieve mesh was preset on the substrate with hot pressing process. After spraying the superhydrophobic coating on the substrate of the preset mesh followed by curing, a superhydrophobic coating was obtained. The surface morphology of the superhydrophobic coating prepared using the preset grid-spraying method was primarily composed of the regular grid structure and island-like structure with the micro-nano scale rough structure on them. Compared with the superhydrophobic coating prepared with the traditional spraying method, the mechanical stability of the superhydrophobic coating, which was prepared using the preset grid-spraying method, was considerably higher along with good hydrophobic properties. The superhydrophobic coating demonstrated superhydrophobic properties after 170 cycles of the sandpaper abrasion test, which was about 300 % higher than the traditional superhydrophobic coating. Furthermore, the superhydrophobic coating prepared using the preset grid-spraying method had excellent self-cleaning performance and weather resistance. Self-cleaning efficiencies of this superhydrophobic coatings on kaolin and sand were 99.2 % and 98.9 %, respectively. Even after 170 cycles of the sandpaper abrasion test, the self-cleaning efficiency of superhydrophobic coatings on kaolin and sand remained over 85 % and 90 %, respectively. The coated surface still showed superhydrophobic properties after 30 days of the outdoor placement experiment. Showing excellent comprehensive properties and low cost, the superhydrophobic coating prepared using the preset grid-spraying method had a board application prospect.
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
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Yuanlong Wu,Lei Dong,Qianping Ran
Transparent superhydrophobic coatings are of vital importance for various rising applications, such as photovoltaics, touch panels, smart windows, etc. However, their large-scale practical applications are severely restricted by hazardous fluorinated reagents, multistep preparation procedures, thermal treatment requirements, and poor durability. In this study, a facile one-step spraying method was proposed to fabricate transparent superhydrophobic coatings on various substrates, using an integrated fluorine-free suspension composed of siloxane-containing acrylate copolymers and SiO 2 nanoparticles. Thanks to the incorporation of siloxane groups in the copolymers, the prepared coatings can be cured at room temperature without any thermal curing procedure. The resultant coatings exhibit excellent superhydrophobicity and high transparency, with a WCA of 162.2 ± 1.8° and ∼90.83 % transmittance at 550 nm, respectively. Besides, superhydrophobic surfaces with tunable water adhesion can be achieved by adjusting spray pressure. After a series of mechanical durability tests and chemical stability tests, the obtained coatings can still maintain their superhydrophobicity and high transparency. Moreover, the water freezing time on the coated glass can be extended and the ice adhesion strength was significantly reduced, exhibiting excellent anti-icing performance. The facile, fluorine-free, and one-step spraying coating method has scalability and universality, demonstrating the promising prospect of large-scale application in industry.
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
APPLIED THERMAL ENGINEERING
·
2025
·
IF 6.9
Xianghuang Zhou,Yizhou Shen,Zhen Wang,Jiawei Jiang,Senyun Liu,Weilan Liu,Yuebin Lin
Electrothermal anti-/de-icing technology is considered to be an effective means of solving the icing problem on the composite surface of multi-electric/pure-electric vehicle in the future. The electrothermal coating with carbon nanotube concentration gradient was fabricated by the multi-step spraying method, which obviously increased the rate of electric heating by inducing directional heat transfer. The coating temperature remained above 0 ℃ under various low-temperature incoming conditions, when the electric power density as low as 0.4 W/cm 2 . Meanwhile, the concentration gradient coating’s excellent adhesion and electrothermal stability ensured its long service life. Moreover, the surface temperature of the coating on the airfoil model increased rapidly to over 50 ℃ within 180 s at an initial electrical power density of 1.2 W/cm 2 , effectively preventing ice formation on the leading edge for 60 s under −15 °C, 30 m/s flow condition. Under the same conditions, 8.5 mm-thick ice on the leading edge could be swiftly removed within 22 s with initial electrical power density of 1.8 W/cm 2 . This strategy of conductive packing gradient design will provide new insights for advanced electrothermal anti-/de-icing material manufacturing.
研究领域:
材料科学
·
航空工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2021
·Vol. 18
·期 5
·2105198
·
IF 13.281
Xiangyi Zhang,Lipei Ren,Jie Xu,Bin Shang,Xin Liu,Weilin Xu
Structural design of the solar-absorbing layer has been considered as one of the most direct and effective approaches for improving the solar steam generation performance by maximizing the absorption of sunlight, but great challenges in manipulation simplification and structure controllability still remain. Herein, a polyester (PET) fabric covered with a vertically aligned 3D tower-like ferrosoferric oxide (Fe 3 O 4 ) array via a convenient magnetically driven spray-coating method is reported, and both the spatial density and height of the Fe 3 O 4 array are tunable upon spraying time. It shows an extremely high solar absorbance (98.6%) in the entire solar spectrum, which is superior to the corresponding 2D Fe 3 O 4 structure (91.1%). Combining the obtained 3D Fe 3 O 4 /PET with a yolk-shell hydrophobic/superhydrophilic modified melamine-formaldehyde (mMF) sponge, the carefully designed and fabricated 3D Fe 3 O 4 /PET-mMF evaporator can realize a high water evaporation rate of 1.59 kg m −2 h −1 under 1 kW m −2 solar illumination, outperforming most related solar steam generation systems. With the advantages of cost-effectiveness, high evaporation rate, reliable endurance, and structural controllability, this 3D structural design provides an avenue to build up high-performance solar energy-driven water steam generation systems.
研究领域:
材料科学
·
能源科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）