JOURNAL OF MEMBRANE SCIENCE
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2024
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IF 8.4
Ting Chen,Peng Xu,Minghui Qiu,Xianfu Chen,Zhaoxiang Zhong,Yiqun Fan
The challenge of membrane fouling persistently hinders the advancement of membrane technology . The construction of patterned membrane surfaces is anticipated to mitigate the effects of membrane fouling significantly. In this study, ceramic microfiltration membranes with corrugated patterns were fabricated by 3D printing combined with the dip-coating process. To assess the impact of surface patterning on ceramic membrane performance , we initially compared the pore size and pure water flux between straight and corrugated membrane tubes. Both configurations exhibited similar parameters: a support pore size of approximately 1 μm, a membrane layer pore size of about 110 nm, and a pure water permeance of around 950 L m −2 h −1 ·bar −1 . The corrugated ceramic membranes demonstrated superior anti-fouling properties compared to their straight counterparts during the filtration of nanoparticle suspensions, oil-in-water emulsions, and bacterial suspensions . Specifically, under a nanoparticle suspension concentration of 2000 ppm, a transmembrane pressure of 0.2 MPa, and a flow rate of 1.0 m s −1 , the corrugated membrane achieved a stable flux of approximately 1.7 times greater than that of the straight membrane. Furthermore, we explored the effects of surface patterning on fluid dynamics through numerical simulations. The enhanced turbulence dissipation rate in the patterned membrane tubes suggests increased surface turbulence and an improved capacity to remove contaminants. This research offers novel insights into the development of ceramic membranes with enhanced anti-fouling capabilities for water treatment.
研究领域:
材料科学
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环境工程
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高影响因子
ChemistrySelect
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2024
·Vol. 9
·期 44
·e202404251
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IF 1.9
Zichao Yin,Zhenhua Sun,Junyi Li,Haigang Zhou,Jingjing Qi,Weidong Wang
Graphical A multifunctional coating composed of PTFE, PDMS, and nano silica was successfully prepared via deposition coating and heating treatment in this study, which possessed excellent anti-corrosion, anti-scaling, anti-fouling, anti-icing, and self-cleaning properties. This superhydrophobic coating can be loaded onto various facilities and equipment as top finish, protecting the substrates from water containing contaminants. This coating may have broad applications in the field of metal substrate protection. PTFE-based superhydrophobic coatings have received increasing research and the fabricated coatings exhibited excellent anti-corrosion, anti-scaling, anti-fouling, and anti-icing properties. In order to further enhance the hydrophobicity of PTFE coating, a PTFE-based coating consisted of nano-silica and polydimethylsiloxane (PDMS) was fabricated by deposition coating and annealing treatment. The water contact angle and sliding angle of the coating achieved 160.65° and 3.02°, respectively, demonstrating it possessed superhydrophobic property. Due to its excellent surface feature, the coating exhibited resistance to milk, coffee, and mud water, and could be easily cleaned by water flow. Besides, the water droplet on the coating had a longer freezing time and the ice droplet could be easily removed from the coating. Ascribed to the abundant nonpolar groups and the air cushion formed under water, the prepared coating had outstanding anti-scaling and anti-corrosion properties. The electrochemical impedance of the steel plate with the coating (above 9000 Ω·cm 2 ) increased by two orders of magnitude compared with the non-coating one (78.2 Ω·cm 2 ), and the anti-scaling rates of the coating towards BaSO 4 and SrSO 4 were all above 80%. It is promising that the coating will be a competitive candidate in many application fields.
研究领域:
材料科学
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表面工程
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高影响因子
Biomimetics
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2022
·Vol. 7
·期 2
·50
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IF 3.743
Xutao Ma,Xiaohui Fu,Jing Sun
As awareness of environmental protection increases, environmentally friendly coatings have been receiving great interest. Zwitterionic polymers are considered promising candidates due to their biocompatibility and excellent antifouling properties. In this paper, a type of polypeptoid containing zwitterions on the side chain was synthesized via ring-opening polymerization (ROP) and post-modification. This obtained polypeptoid was subsequently grafted onto the surface of polydimethylsiloxane (PDMS) via plasma and UV-induced surface polymerization. Surface morphology and protein adsorption tests of the resulting coating were systematically carried out. The results show that the modified coating has excellent antifouling properties and thus has great potential for environmentally friendly coating applications.Keywords:zwitterionic polymers;antifouling coatings;ring-opening polymerization
研究领域:
材料科学
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环境科学
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DOI
PubMed
高影响因子
Advanced Science
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2025
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IF 14.1
Tong Zhang,Tian Liang,Qichao Pan,Shouyan Zhang,Shuhua Zhang,Zhi Geng,Bo Zhu
Blood-contacting catheters are highly susceptible to thrombus formation, making heparin coating essential for reducing clinical complications. However, the limitations of heparin coatings have spurred significant efforts to develop alternative strategies. This study demonstrates a cost-efficient, mechanically viable, and universal zwitterion coating approach for long and complex catheters with near-zero fouling, super anticoagulation, and selective biocapturing. Leveraging the synergistic action of side groups, a wet-adhesive initiator-bearing polymer rapidly assembles on catheter surfaces in aqueous environments, facilitating the grafting of superhydrophilic and zwitterionic polymers onto catheter inner walls. This strategy demonstrates broad adaptability, successfully applying to ten substrates and showing exceptional versatility in modifying catheters and joints of various shapes and sizes. These coatings exhibit near-zero protein fouling across a broad pH range, and superior resistance to blood cells and bacteria. Furthermore, they maintain excellent stability under simulated bloodstream without compromising anticoagulant performance. Beyond antifouling properties, this method enables the construction of highly selective bio-interaction networks on catheter inner walls, allowing precise capture of circulating tumor cells from blood. This zwitterion coating technique, with its rapid modification, robust anticoagulant properties, and customizable bio-functionality, provides an attractive solution for, beyond catheters, a wide range of medical devices that must perform in challenging biological environments.
研究领域:
生物医学工程
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材料科学
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血液学
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DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Xianglong Xiao,Lizhi Zhao,Lixian Wang,Baitao Xu,Guangyue Du,Huiqin An,Hui Ye,Qingping Xin,Yuzhong Zhang
Membrane distillation (MD) is a promising method to produce fresh water by desalination of seawater and saline industrial wastewater. Hydrophobic membranes for MD tend to scaling and fouling during operation. Herein, liquid-infused membrane (LIM) with slippery surface and gating properties is proposed for anti-scaling/fouling MD. The LIM, denoted by PTFE-2-FL, was fabricated by coating a ∼ 2 μm-pore-sized polytetrafluoroethylene (PTFE-2) with dopamine and polyethyleneimine, silica nanoparticles, and fluoride (abbreviated as F), followed by lubricant filling (abbreviated as L). The lubricant capillary-locked in micropores forms a gate that can be reversibly opened for vapor under proper pressure, but prevents water from passing through, thus achieving vapor/water separation with a maximum salt rejection of 99.99 %. Compared with the non-lubricated membrane, PTFE-2-FL exhibits more stable separation performance, indicating the excellent anti-scaling/fouling properties owing to the non-adhesive lubricant surface avoiding contact between contaminants and membrane substrate, especially when treating high-salinity feed (NaCl of 250 g·L −1 ), simulated gypsum solution (NaCl of 35 g·L −1 , Na 2 SO 4 of 20 mM and CaCl 2 of 20 mM), organic compound-contaminated solutions (humic acid or sodium alginate of 500 mg·L −1 ), and inorganic–organic mixed solutions. PTFE-2-FL also has good reusability compared to the irreversible fouling of the hydrophobic membrane in cyclic MD process.
研究领域:
材料科学
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环境工程
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Peng Wang,Baoluo He,Yixuan Du,Biwen Wang,Jingde Gao,Shujuan Liu,Qian Ye,Feng Zhou
Marine corrosion and biofouling are a major issue affecting the development of the marine industry. Traditional single-function coatings, such as those that provide either antifouling or anticorrosion, cannot meet the requirements in the current hostile conditions. In our study, block copolymer-functionalized Ti 3 C 2 T x was successful prepared and employed to synthesize a nanocomposite coating with satisfactory antifouling and anticorrosion performances, in which the anticorrosion agent poly(2-mercaptobenzothiazole) (PMBTMA) was first grafted on the Ti 3 C 2 T x surface, after which the antifouling agent poly(3-sulfopropyl methacrylate potassium (PSPMA) was grafted via surface-initiated atom transfer radical polymerization (SI-ATRP), to obtain the block copolymer (PMBTMA- co -PSPMA)-functionalized Ti 3 C 2 T x (abbreviated as TMS). An appropriate corrosion protection and antifouling mechanism in the functionalized Ti 3 C 2 T x -based epoxy nanohybrid coatings is proposed. It is noteworthy that the antibacterial activity of the proposed coating stems from the synergistic bactericidal effect of Ti 3 C 2 T x and 2-mercaptobenzothiazole (MBT). The outstanding antibacterial properties of the TMS and the strong surface hydration of the anionic polymer brushes PSPMA, endow the as-prepared TMS-based nanocomposite coating (TMS/EP) with good antifouling performance (removal of more than 55% of bacteria and removal rate of microalgae up to 71%). More importantly, the TMS/EP has excellent corrosion resistance ability, which is due to the good synergistic anticorrosion barrier effect of Ti 3 C 2 T x nanosheets and the on-demand release of corrosion inhibitor MBT during the corrosion process.
研究领域:
材料科学
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海洋生物学
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化学工程
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高影响因子
Polymers
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2023
·Vol. 15
·期 19
·3983
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IF 5
Jiayi Shen,Junfei Ou,Sheng Lei,Yating Hu,Fajun Wang,Xinzuo Fang,Changquan Li,Wen Li,Alidad Amirfazli
Slippery coatings, such as the slippery liquid-infused porous surface (SLIPS), have gained significant attention for their potential applications in anti-icing and anti-fouling. However, they lack durability when subjected to mechanical impact. In this study, we have developed a robust slippery coating by blending polyurethane acrylate (PUA) with methyltriethoxysilane (MTES) and perfluoropolyether (PFPE) in the solvent of butyl acetate. The resulting mixture is homogeneous and allows for uniform coating on various substrates using a drop coating process followed by drying at 160 °C for 3 h. The cured coating exhibits excellent water repellency (contact angle of ~108° and sliding angle of ~8°), high transparency (average visible transmittance of ~90%), exceptional adherence to the substrate (5B rating according to ASTMD 3359), and remarkable hardness (4H on the pencil hardness scale). Moreover, the coating is quite flexible and can be folded without affecting its wettability. The robustness of the coating is evident in its ability to maintain a sliding angle below 25° even when subjected to abrasion, water jetting, high temperature, and UV irradiation. Due to its excellent nonwetting properties, the coating can be employed in anti-icing, anti-graffiti, and anti-sticking applications. It effectively reduces ice adhesion on aluminum substrates from approximately 217 kPa to 12 kPa. Even after 20 cycles of icing and de-icing, there is only a slight increase in ice adhesion, stabilizing at 40 kPa. The coating can resist graffiti for up to 400 cycles of writing with an oily marker pen and erasing with a tissue. Additionally, the coating allows for easy removal of 3M tape thereon without leaving any residue.Keywords:solid slippery coating;durability;anti-freezing;anti-graffiti;anti-smudge
研究领域:
材料科学
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化学工程
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PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Shilong Zhang,Shuyang Tan,Yajun Deng,Bo Wu,Yanling Yang,Jiangfan Chang,Xianhui Zhang,Baiyi Chen,Jianhua Wu
Traditional antifouling coatings often lack the combined capabilities of static antifouling and dynamic fouling-release, which are critical for marine propellers. This study addresses this limitation by developing pH-sensitive polysiloxane coatings that integrate both functionalities. Two coating systems, PS-Levo and PS-PLL, were synthesized by incorporating levofloxacin (Levo) and polylysine (PLL) as antifouling agents, respectively. PS-Levo was synthesized via an epoxy-carboxylic acid ring-opening reaction, while PS-PLL was obtained through an amine-hydrosilylation reaction, using APTES as the curing agent. A key innovation of these coatings is their pH-triggered hydrolysis. Marine microorganisms that form biofilms on the coating surface can alter the microenvironmental pH through their metabolic activities, either lowering or raising it, thereby promoting the release of antifouling agents. The coatings exhibited remarkable antifouling efficacy, achieving bactericidal and anti-algal rates of over 99% and 97%, respectively. Following a 180-day immersion of the coated panels in natural seawater, minimal marine biofouling adhered to the coated surfaces and could be effortlessly removed by simple rinsing, thereby demonstrating excellent static antifouling and dynamic fouling-release performance. Moreover, the PS-Levo and PS-PLL coatings exhibited outstanding adhesion, mechanical properties, and corrosion resistance. This research introduces an innovative strategy for combating biofouling on marine propellers and presents significant potential for practical applications in the marine antifouling industry.
研究领域:
海洋科学
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材料科学
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表面工程
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环境化学
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生物技术
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DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
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2023
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IF 6.6
Qing Chen,Jinyue Dai,Peizhan Cao,Guangming Lu,Xiaoqing Liu
Building benzoxazine coatings on large equipment is of great practical importance and challenging. In this work, a main-chain type benzoxazine (MCBZ) resin that can be quickly shaped under UV light was successfully synthesized and can be directly coated into a film. In addition, it had a wide processing window, low curing temperature, excellent static antifouling effect, and sterilization effect. The d12-DHBP-MCBZ resin was prepared from dodecamine, which ensured the sterilization effect, and 4, 4′-dihydroxy-benzophenone provided the photoinitiation sites and activated the oxazine ring. By adjusting the ratio of d12-DHBP-MCBZ to TMPTMA, hydrophilic benzoxazine coatings can be prepared, suitable for fouling-resisting coatings. The results indicated that the d12-DHBP-MCBZ resin could be quickly shaped under UV light, and the post-curing temperature was only 140 °C. In particular, the coatings' excellent hydrophilicity can effectively prevent fouling organisms' adhesion and improve the static antifouling effect. It was worth mentioning that Poly (BZ/20 %TMA) coating achieved a high sterilization performance of >99 %. These works gave us a new strategy to solve application problems of benzoxazine coatings on large equipment and antifouling coating efficiency problems.
研究领域:
材料科学
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海洋生物学
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化学工程
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Wenliang Zhang,Shuyi Li,Dongsong Wei,Yafei Shi,Ting Lu,Zhen Zhang,Zhiwu Han,Yan Liu
Poor corrosion resistance limits the application of Mg alloy and it is meaningful to explore a surface coating technology for ultra-long-term corrosion protection of Mg alloy. Superhydrophobic surface (SHS) and smooth liquid-injected porous surface (SLIPS) have shown important application value in the field of Mg alloy corrosion protection. However, the unstable special interface of air layer or lubricant cannot act as stable corrosion barrier for the long term. Inspired by frog skin, a bionic fluorine-free multifunctional slippery coating (MSC) is prepared by one-step spraying a mixture of epoxy resin, silicone oil, modified nano TiO 2 and modified micron mica powder. MSC exhibits a microstructure similar to frog skin, excellent slippery (sliding angle ∼ 3°) and strong lubricant retention. Different from anticorrosion mechanism of SHS and SLIPS by their special interface, MSC, storing silicone oil on the surface and inside the coating, demonstrates ultra-long-term anticorrosion to Mg alloy (both neutral salt spray and 3.5 wt% NaCl solution immersion for 60 days) due to excellent barrier effect throughout coating, and the scratch defect area of MSC is not significantly eroded after 14 days of salt spray. Moreover, MSC exhibits excellent static/dynamic anti-icing ability and low ice adhesion in a −20℃ environment, outstanding adhesion (level 4B), high hardness (3H), antibacterial (>94 %), antifouling, chemical stability and resistance to boiling water, ice water and UV radiation. All these excellent properties can promote the application of Mg alloy in a wider range of fields.
研究领域:
材料科学
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生物医学工程
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DOI
高影响因子
Materials Today Communications
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2023
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IF 3.8
Huiting Hao,Yuanchun Mu,Guanzhou Zhen,Peicheng Yuan,Xiaoyu Li
A self-cross-linkable core-shell silicone-acrylic latex and coatings with excellent dirt pickup resistance were studied to solve the pollution problem for the exterior wall. This article focused on adding two silicon compounds with C C in the core and shell at the influence on latex and coating performance, respectively. First, the octamethylcyclotetrasiloxane (D 4 ) and tetramethyltetraethylcyclotetrasiloxaneand ( D 4 V ) were used to synthesize silicone copolymer (PVMS) by cationic ring-opening polymerization as the core. Next, in this silicone latex, butyl acrylate (BA), methyl methacrylate (MMA), methacrylic acid (MAA), and γ-methacryloxypropyltrimethoxysilane (A174) were copolymerized to form the silicone-acrylic latex (PVMS/ASI). Fourier Transform Infrared Spectrometers proved that PVMS was successfully grafted onto acrylic copolymer (ASI). The morphology of particles exhibited core-shell structure, which was clearly shown in TEM. Finally, a comprehensive study of the effect of D 4 V in the PVMS/ASI was conducted on the properties of such latexes, films, and coatings. It was found that the D 4 V content influenced quite significantly the properties of latexes and films (water absorption, contact angle, crosslinking degree) as well as the properties of coatings (dirt pickup resistance, water resistance, hardness, adhesion, water scrub resistance). Ultimately, it found that D 4 V had a positive effect on dirt pick-up. When D 4 V content was 23 wt% in PVMS/ASI, the coating had an excellent dirt pickup resistance with extremely low Δ R (2.65%).
研究领域:
材料科学
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化学工程
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DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2022
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IF 7.305
Wu-zhi Yuan,Zhixing Liao,Kui He,Si-Min Huang
Although condensation plays an important role in photovoltaic (PV) soiling, the mechanism of interaction among the condensate, dust particle, and PV surface has not been effectively elucidated. In this work, the dynamic behavior of dust/condensate during condensation and evaporation is investigated. Further, quantitative measurements are performed after drying. In addition, the effects of surface wettability and dust types on soiling are studied. A surface with a hydrophobic coating is found to have enhanced dust rearrangement/agglomeration by reducing surface coverage and particle adhesion . However, the hydrophobicity of particles is unfavorable because of the weak water-solid force. Based on these results, an explanative mechanism for the morphology and spatial distribution of dust mass after drying according to the force analysis is proposed. Two mechanisms account for surface soiling in the presence of dew: contact status between condensate and particles and condensation mode on the surface. This finding may guide the development of suitable strategies to prevent or mitigate soiling.
研究领域:
材料科学
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环境工程
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DOI
高影响因子
危险品化学品经营许可证（带存储）