Journal of Materials Chemistry A
·
2017
·Vol. 5
·期 30
·15855-15861
·
IF 8.867
Chao Liu,Chunfeng Ma,Qingyi Xie,Guangzhao Zhang
Marine biofouling is one of the most challenging problems today. Silicone polymer based coatings with a low surface energy and elastic modulus can effectively inhibit or release biofouling. However, their non-repairable properties and poor antifouling ability under static conditions limit their applications. Here, we report a self-repairing coating consisting of poly(dimethylsiloxane) based polyurea (PDMS-PUa) and a small amount of organic antifoulant (4,5-dichloro-2-n-octyl-4-isothiazolin-3-one) (DCOIT). The coating can completely recover its mechanical properties after damage either in air or artificial seawater at room temperature. Such recovery can be accelerated at a higher temperature. Moreover, the release rate of DCOIT is almost constant and can be regulated by its concentration. Six-month marine field tests demonstrate that the system has a good antifouling/fouling release performance even under static conditions.
研究领域:
海洋生物学
·
材料科学
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Guangling He,Shuqing Wei,Yuhao Yue,Lei Dong,Liangmin Yu
Hydrogel is recognized as highly promising antifouling coatings. The introduction of other antifouling strategies has emerged as an essential research direction for enhancing hydrogel antifouling applications. However, simultaneous integration of multiple antifouling strategies within the same hydrogel remains challenging, while attenuation of hydrogel hydration layer antifouling effect during functionalization is still problematic. Herein, a multifunctional coating combines the hydrogel hydration layer surface with multiple antifouling mechanisms including low surface energy characteristics, cationic contact-killing structure, and fluorescence performance was developed. Through elevation of 2-(dimethylamino)ethyl methacrylate (DM) content, the hydration layer characteristics, low surface energy characteristics, cationic contact-killing effect, and fluorescence performance were simultaneously enhanced. This approach effectively overcomes antagonistic interactions between co-existing multiple antifouling mechanisms. Crucially, the fluorescence functionality was engineered in this coating without employing exogenous fluorophores through precisely designed intermolecular aggregation. Meanwhile, an enhanced dual-stage defense was imparted to the coatings through synergistic mechanism integration. First stage of antifouling defense: hydration layer, low surface energy, and fluorescence performance collectively impart enhanced fouling-resistance adhesion capability into coating. Second stage of antifouling defense: surface-adhered organisms are killed via contact-killing. Consequently, the hydrogel demonstrates excellent anti-protein adsorption performance (minimum normalized value <1 %), algal adhesion and growth inhibition performance, inhibition of bacterial growth (up to 98.27 %) and adhesion performance (up to 96.36 %). It employs absolutely no metallic antifouling agents and fluorescent agents, thereby providing important insights for eco-friendly marine antifouling coatings.
研究领域:
材料科学
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高分子化学
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表面工程
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海洋生物污损防治
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环境友好材料
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功能涂层
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
·
2019
·
IF 1.21
Ying Fu,Hui Du,Zhaojun Chen,Xin Liu,Xiaodong Zhang
New acrylate grafting epoxy antifouling resins containing benzoisothiazoline ketone (BIT) group were successfully synthesized, and their structures and performances were determined. Experimental data indicated that the new acrylate grafting epoxy antifouling resins have a strong bonding to the cured epoxy resin coating through chemical reaction and self-stratifying. And the paint prepared by using the new resin as matrix has excellent self-polishing and antifouling properties. Especially its antifouling period could be modified by changing the weight ratio of the usage of the mixed monomers and epoxy resin in the preparing process of the acrylate grafting epoxy antifouling resins.
研究领域:
材料科学
·
海洋生物学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2023
·Vol. 140
·期 38
·e54440
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IF 3
Quan Xuan Duong,Nguyen Hanh Do,Hien Thanh Pham,Thu Hong Anh Ngo
This study endeavors to augment the antibacterial and anti-biofouling properties of thin-film composite polyamide membranes by subjecting them to modification with antibacterial chitosan and silver nanoparticle materials through the UV-induced graft polymerization technique. Various surface assessment methods were employed, and the efficiency of the membrane performance was demonstrated through the flux and the retention of the filtration process, which used calcium chloride as the foulant. Antibacterial, antifouling, and anti-biofouling capabilities were assessed through several tests. The findings revealed that the chitosan/silver nanoparticles-grafted membranes exhibited superior antibacterial and anti-biofouling abilities with consistent flux and enhanced retention, underscoring the prospective implementation of this approach in filtration systems to curtail biofouling and bolster overall efficacy.
研究领域:
材料科学
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环境工程
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生物学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Coatings Technology and Research
·
2025
·
IF 2.8
He Chengtian,Chen Rongrong,Liu Xin,Wang Chao,Liu Qi,Liu Jingyuan,Liu Peili,Wang Jun
Marine biofouling has caused huge economic and energy losses, and the application of marine antifouling coatings is one of the effective solutions to this problem. Sily-acrylate based self-polishing coatings are favored because of excellent antifouling performance. However, weak static antifouling performance restricts the development of sily-acrylate based antifouling coatings. To solve this problem, an eugenol ester-based sily-acrylate polymer (EMSPs) is synthesised, which showed both self-polishing and antifouling performance. The highest content of eugenol (EMSP-16) inhibits Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) up to 62.2% and 76.3%, respectively, and inhibits the adhesion of Halamphora sp. and Nitzschia closterium (N. closterium) up to 85.1% and 90.8%, respectively. Mussel adhesion experiments show that mussels tend to avoid coatings with high eugenol content. The eugenol ester-based sily-acrylate polymer provides a new way to develop new environmentally friendly marine antifouling coatings and alleviate heavy metal pollution in the marine environment.
研究领域:
材料科学
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海洋生物学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2022
·Vol. 12
·期 4
·447
·
IF 3.236
Yingxiang Ma,Dan Jiang,Yuping Yang,Li Ma,Jian Zhou,Guosheng Huang
In this study, the urea-formaldehyde (UF)-tung oil solution of phenolic amide (PA) microcapsules to realize anti-fouling and anti-corrosion integration was synthesized by the in situ polymerization method. The compounds and structures were optimized by investigating six kinds of different emulsifiers. The results showed that high-core-content and narrow-particle-size-distribution microcapsules could be synthesized with sodium dodecyl benzene sulfonate (SDBS)/polyvinyl alcohol (PVA), and the core content of the microcapsules was 75 wt% at microcapsule sizes from 24.07 to 71.33 µm. The results of self-healing coatings showed that when the content of microcapsules in the coating exceeded 10 wt%, the healing agent released from the scratched surface could cover the naked metal effectively, which could pass a 7 day neutral salt spray test without rust at the scratched area. A sufficient dose anti-fouling agent can be provided to prevent diatoms and mussels from adhering. The present work shows that the complex emulsifier can better control the particle size distribution and microstructure of the microcapsules, and the admixture of the microcapsules into the resin epoxy coating can realize excellent anti-corrosion and anti-fouling functions.Keywords:self-healing;microcapsules;anti-corrosion;anti-fouling
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
Case Studies in Construction Materials
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2025
·
IF 6.6
Miaomiao Ma,Jingyao Ma
To address the issue of insufficient mechanical properties in conventional hydrogels that limit their marine antifouling applications, we innovatively proposed a construction strategy of titanium dioxide (TiO 2 ) nanoparticles reinforced polyethylene glycol (PEG) hydrogels. The TiO 2 -PEG hydrogel with uniformly dispersed nanoparticles were successfully prepared by in-situ polymerization, and the material showed excellent mechanical properties. When the content of TiO 2 is 0.5 wt%, the tensile strength of the TiO 2 -PEG hydrogel can reach 0.97 MPa, which is 68.5 % higher than that of the PEG hydrogel. CLSM analysis shows that TiO 2 nanoparticles effectively enhance the mechanical properties of hydrogels by inducing crack deflection and energy dissipation mechanism. Notably, TiO 2 -PEG hydrogel also has a broad-spectrum antifouling performance, which can effectively resist protein adsorption and adhesion of Escherichia coli, Staphylococcus aureus and diatoms. The structure-property relationship demonstrated that TiO 2 enhanced the TiO 2 -PEG mechanical properties, which inhibited its detachment from the substrate and thereby significantly improved the antifouling durability. This study not only provides new ideas for the design of high-performance marine anti fouling materials, but also provides theoretical basis and practical support for achieving synergistic enhancement of anti fouling performance and mechanical performance.
研究领域:
材料科学
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海洋技术
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高分子科学
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纳米技术
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表面工程
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 2
·317
·
IF 5
Yi Zhang,Tao Ge,Yifan Li,Jinlin Lu,Hao Du,Ling Yan,Hong Tan,Jiehua Li,Yansheng Yin
Biofilms are known to be difficult to eradicate and control, complicating human infections and marine biofouling. In this study, self-polishing and anti-fouling waterborne polyurethane coatings synthesized from gemini quaternary ammonium salts (GQAS), polyethylene glycol (PEG), and polycaprolactone diol (PCL) demonstrate excellent antibiofilm efficacy. Their anti-fouling and anti-biofilm performance was confirmed by a culture-based method in broth media, with the biofilm formation factor against Gram-positive (S. aureus) and Gram-negative bacterial strains (E. coli) for 2 days. The results indicate that polyurethane coatings have excellent anti-biofilm activity when the content of GQAS reached 8.5 wt% againstS. aureus, and 15.8 wt% againstE. coli. The resulting waterborne polyurethane coatings demonstrate both hydrolytic and enzymatic degradation, and the surface erosion enzymatic degradation mechanism enables them with good self-polishing capability. The extracts cyto-toxicity of these polyurethane coatings and degradation liquids was also systematically studied; they could be degraded to non-toxic or low toxic compositions. This study shows the possibility to achieve potent self-polishing and anti-biofilm efficacy by integrating antibacterial GQAS, PEG, and PCL into waterborne polyurethane coatings.Keywords:anti-fouling;anti-biofilm;self-polishing;waterborne polyurethane
研究领域:
材料科学
·
微生物学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Yuhua Liu,Wenyan Liu,Shuqing Wei,Yuhao Yue,Lei Dong,Liangmin Yu,Guangling He
In order to reduce the release of volatile organic compounds (VOCs), it is of great practical significance to develop water-based self-polishing antifouling coatings instead of traditional acrylic self-polishing antifouling coatings. However, when preparing film forming matrix resin emulsions for water-based antifouling coatings, the use of emulsifiers in large amounts causes film-forming defects and poor adhesion. Herein, soap-free emulsion polymerization is utilized to prepare resin emulsions by copolymerization of hydrophilic monomers, lipophilic monomers and polymerizable hydrophilic ionic monomers. The hydrophilic structure can give the water-based polymer self-emulsification function to maintain the stability of the emulsion and can promote the fusion between the latex particles by forming hydrogen bonds and coordination bonds, and its connection with the pigments and fillers in the coating can also promote the excellent film formation of the coating. The experimental results show that the water-based self-polishing antifouling resin emulsion has good storage stability and compatibility with the pigments and fillers. The coatings formulated using this emulsion as the film-forming matrix firmly adhered to substrates and displayed satisfactory antifouling performance even after being exposed to a real sea environment for 18 months. This study presents a simple approach for the development of water-based resin emulsion with good storage stability and good water-based self-polishing marine antifouling coatings.
研究领域:
材料科学
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海洋科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Qingqing Rao,Yulin Lu,Lina Song,Yang Hou,Xiaoli Zhan,Qinghua Zhang
Smart slippery liquid-infused porous surfaces (SLIPSs) have aroused remarkable attention owing to tremendous application foreground in biomedical instruments and industry. However, challenges still remain in fabricating durable SLIPSs. In this work, a fast and highly efficient self-repairing slippery surface (SPU-60M) was fabricated based on a polyurethane membrane and silicone oil. By introducing a great quantity of reversible disulfide bonds into the polymer backbone and hydrogen bonds in the polymer interchain, this SLIPS material could be quickly repaired in 15 min with 97.8% healing efficiency. Moreover, the self-healing efficiency could be maintained at 42.75% after the 10th cutting–healing cycle. Notably, SPU-60M showed excellent self-repairing ability not only in an ambient environment but also in an underwater environment and at ultralow temperatures. Besides, the icing delay time (DT) of SPU-60M could be prolonged to 1182 s at −15 °C, and the ice adhesion strength was only 10.33 kPa at −30 °C. In addition, SPU-60M had excellent anti-fouling performance with BSA adsorption of 2.41 μg/cm2 and Escherichia coli CFU counts of 41 × 104. These findings provide a facile way to design highly efficient self-repairing SLIPSs with multifunctionality.
研究领域:
材料科学
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生物医学工程
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表面科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MARINE POLLUTION BULLETIN
·
2024
·
IF 5.3
Wenjian Dong,Chunhua Ni,Xia Li,Liangmin Yu,Xuefeng Yan
Tin-free self-polishing antifouling coatings have the highest market share since organotin self-polishing antifouling coatings have been banned. However, its high dependence on cuprous oxide was found to have caused potential harm to the environment, making it necessary to improve the functionality of the resin. In this paper, a zinc acrylate resin with side chain hanging indole derivative structure was prepared by using N-(1H-5-bromoindole-3-methylene) (BIAM) with good biological activity as functional monomer. The functional resin with good antifouling performance was selected by antibacterial and algae inhibition experiments. The results showed that when the BIAM content was 9 %, the inhibition rates of the resin on E. coli and Prymnesium parvum reached 98 % and 90 %, respectively. Tin-free self-polishing antifouling coatings were prepared using the above resins as film-forming materials. The anti-protein adsorption performance and antifouling performance of the coating were tested by anti-protein adsorption experiment and real sea hanging plate experiment. The results showed that the coating containing indole derivative structure had good anti-protein adsorption performance and antifouling performance, and the higher the BIAM content, the better the anti-protein adsorption performance and marine antifouling performance.
研究领域:
材料科学
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生物学
·
海洋科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
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2022
·
IF 6.206
Jiating Wen,Zhe Sun,Fanglong Zhu,Haojun Fan
A fluorine-free anti-smudge waterborne polyurethane coating was constructed via the dispersion of hexamethylene diisocyanate trimer into organosilicon-grafted waterborne polyurethane. In the film-forming process, the interaction among carboxyl, hydroxyl and isocyanate groups blocked the hydrophilic groups and improved the density of the coating, thereby preventing contaminants from penetrating into it. Furthermore, the organosilicon side chain migrated onto the coating surface to form a low surface energy amphiphobic layer, which endowed the coating with superior anti-graffiti performance. The surface energy of the as-constructed coating was 24 mN m −1 . The water, diiodomethane and hexadecane contact angles were 95°, 70° and 36°, respectively, with corresponding sliding angles of 35°, 10° and 1°, thereby showing that the coating had no affinity to oil- and water-based ink graffiti. More strikingly, the anti-graffiti performance remained after 400 abrasion cycles under a pressure of 110 kPa and under harsh chemical treatment (strong acids, bases and salts). The constructed coating also showed an optical transparency as high as 93 % due to the high crosslinking degree.
研究领域:
材料科学
·
表面化学
✓ 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）