Journal of the Australian Ceramic Society
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2023
·Vol. 59
·期 4
·915-922
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IF 1.9
Zhang Jianxiong
ZrO 2 is widely used. However, surface hydrophilicity is harmful to waterproof devices. In this work, epoxy-based polyhedral oligomeric silsesquioxane (POSS) was chemically bonded to ZrO 2 sheet surface for weather-resistant hydrophobicity and anti-adherence property. First, ZrO 2 sheet was modified with hydroxyls, followed by amino modification. Then, surface POSS modification was performed via ring-opening addition. Next, composition and micro-morphology of POSS-treated sheet were clarified. Ultimately, the dependence of water contact angle of POSS-modified sheet on POSS solution treating time was researched, and the highest contact angle of 132.6° was gained by 24-h treating. Acid corrosion, alkali corrosion, and ultraviolet radiation for 48 h were employed to verify good weather resistance with contact angles over 120°. POSS-modified sheet had good anti-adherence capacity. Cooperation of POSS and ZrO 2 was utilized to obtain low surface energy and high surface roughness. This work might help to obtain hydrophobic ceramics as catalyst supports for oil-phase reactions.
研究领域:
材料科学
·
表面化学
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DOI
高影响因子
CHEMISTRY OF MATERIALS
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2022
·
IF 10.508
Yinsong Si,Taoqing Huang,Huiqi Xie,Min Chen
Artificial brochosome-shaped microspheres closely mimicking natural brochosomes are highly desired however challenging to synthesize. Herein silica brochosome-shaped microspheres (SiO2 BMs) are successfully synthesized by simply adjusting the NH4OH/p-xylene ratio. The obtained BMs, with a diameter of 530 nm and highly accessible open pores of ∼130 nm, demonstrate high similarity to natural brochosomes in size, shape, and pores geometry. A mechanism of droplets assembly originating from the surface charge transformation of the emulsion droplets is proposed by carefully investigating the in situ dynamic evolution of BMs intermediates. The priority growth of primary particles at the interface of the adjusting droplets forms the pores wall of BMs with regular distribution. Benefiting from the unique structure, the SiO2 BMs show excellent antiadhesion (superhydrophobic) and antireflection (at least 70% reduction for vertical reflection), indicating the high functional similarity to natural brochosomes. The synthesized BMs demonstrate sufficient load capacity, suggesting great potential in energy conversion and biomedical applications.
研究领域:
材料科学
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仿生学
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纳米技术
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DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Lang Mingjiao,Luo Jianquan,Wan Yinhua,Wang Xinyan,Chen Xiangrong,Zeng Guangyong
Biofouling is inevitable when reverse osmosis (RO) membrane is applied in water treatment. The adhesion and proliferation of microorganisms on the membrane surface severely degrade the performance of RO membrane, including a sharp decrease in permeate flux, a decline in salt rejection, and a shortened service life. Based on the biofouling mechanism, we designed and prepared a dual-functional RO membrane with excellent antibacterial and anti-adhesion properties by simultaneously grafting ionic liquid and sulfonic acid monomers onto the surface of RO membrane using a simple redox radical polymerization. Compared with the pristine membrane, the water flux of the grafted membrane increased by 13.0%, and the salt rejection slightly increased. Meanwhile, the grafted membrane possessed good antibacterial activity against E. coli and S. aureus . The bacterial mortality rates increased from 20.3% and 80.0% of the pristine membrane to 98.2% and 96.1%, respectively. Comparing the changes in membrane flux and rejection before and after bacterial fouling, the grafted membrane had significant advantages over the pristine membrane. The grafted membrane also exhibited excellent antifouling ability towards bovine serum albumin (BSA), humic acid (HA), and sodium alginate (SA). After 10 h of continuous filtration experiment, the flux decline of membrane for HA and BSA solutions was about 7%, for SA solution about 14%. And the grafted membrane showed good long-term stability in the application of tap water purification. This study provides an innovative path for preparing RO membrane with excellent anti-biofouling capabilities.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2024
·
IF 3.2
Yinghui Yuan,Guangli Dong,Yinglin Liu,Lili Tian,Bingyu He,Enliang Zhou,Hong Hao
This study focuses on the surface modification of substrates using a poly(N,N-dimethyl-N-(ethoxycarbonylmethyl)-N-[2′-(methacryloyloxy) ethyl]-ammonium chloride-co-3-(trimethoxysilyl)propylmethacrylate) P(CBMAE-co-TMSPMA) and ethyl orthosilicate (TEOS). By covalently bonding the Si-OH pendant of the copolymer with hydroxyl residues on the material's surface, a stable polymer coating is formed. The properties of P(CBMAE-co-TMSPMA) coatings were evaluated using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscope (SEM), and contact angle (CA) meter. The addition of TEOS allows for the regulation of surface roughness. With the increase of TEOS content, the contact angle of underwater oil first increased and then decreased. The water contact angles were 8°, the underwater superoleophobic contact angle reached 168°, and the number of adherent platelets and Escherichia coli were significantly reduced to 7.5% and 5% on the surface of the coating, respectively. After undergoing simultaneous hydrolysis, the superoleophobic contact angle of P(CBMAE-co-TMSPMA)/SiO 2 coating further increased to 174°. These interesting and robust properties make them promising candidates for biomedical applications. Highlights The underwater superoleophobic coating (contact angles of 174°). The P(CBMAE-co-TMSPMA)/SiO 2 coating with excellent resistance to oil adhesion. Solve the hydroxyl residue problem. The coating resistance to E. coli and platelet adhesion.
研究领域:
材料科学
·
生物医学工程
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Huajun Zhai,Xiangyu Li,Yue Liu,Jiujiang Ji,Ye Tian,Bin Wang,Yen Wei,Na Liu,Lin Feng
As an alternative approach to superhydrophobic surfaces, slippery lubricant-infused porous surface (SLIPS) is a promising solution to undesirable adhesion. Nonetheless, it is highly expected yet still challenging to exploit a method featured substrate-independence, time-saving property and long-term stability. In this study, different from the common preparation process of SLIPS, the di-particles-derived slippery lubricant-infused porous surface (DPD-SLIPS) was successfully fabricated derived from strategically inverted construction of highly stable and superhydrophobic di-particles framework for locking lubricant via successively-two-step spraying polyacrylate adhesive nanoparticles (NPs) and fluorinated SiO 2 NPs, followed by perfluoropolyether (PFPE) infiltration. This substrate-independent procedure is time-saving and adaptable for a variety of materials with distinct morphologies and dimensions. The resultant surface hierarchy exhibited excellent mechanical robustness and lubricant-locking ability when subjected to adhesive tape peeling, abrasion, and shearing tests. Furthermore, the anti-adhesion performance of the created surface was investigated under diverse conditions, exhibiting remarkable ultra-slipping, drag reduction, anti-biofouling, self-cleaning, and anti-icing properties. In particular, the construction of such low surface energy base with micro/nano hierarchical structure via a facile spraying method is an advanced candidate for real applications in reducing ship drag, marine antifouling, preventing biological invasion, among others.
研究领域:
材料科学
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界面化学
·
生物医学工程
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产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Zhongying Xu,Xuewen Cao,Junyi Jiang,Xuerui Zang,Pengshen Wang,Haopeng Zhang,Michal Slaný,Jiang Bian
Addressing the urgent need to mitigate pipeline obstruction caused by natural gas hydrate adhesion we present a novel approach utilizing a spin coating/spray coating technique to develop an effective anti-adhesion coating. Drawing inspiration from the three-layer structure of cat claws, this coating was meticulously characterized alongside modified nanoparticles using XRD , XPS, SEM , and AFM. Assessment of cyclopentane hydrate adhesion employed micromechanical force technique, while the stability of the coating underwent rigorous scrutiny through sand washing tests. Additionally, the proportion of the buffer layer was fine-tuned using Abaqus finite element simulation software. Furthermore, electrochemical methods were employed to evaluate the coating's corrosion resistance . Moreover, we propose a molecular dynamics model for the developed TBPC coating, dissecting its anti-adhesion and anti-corrosion properties. Comparative analysis revealed a remarkable 99.2 % reduction in adhesion force compared to the bare steel surface of X65. Following a 70-day immersion in a 3.5 wt% NaCl solution, the impedance value was measured at 5.5 × 10 6 Ω·cm 2 . Notably, the coating exhibited exceptional superhydrophobic characteristics, with a contact angle of 166.4° and a rolling angle of 6.9° under ambient temperature and pressure conditions. This innovative strategy promises to enhance pipeline hydrodynamic efficiency, reduce energy consumption and ensure the safe transport of hydrates.
研究领域:
材料科学
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表面工程
·
能源工程
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产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2019
·
IF 3.42
Haifang Li,Yuming Zhou,Man He,Haiyong Yang,Saichun Hu,Qiang Liao
A series of fluorine-silicon block urethane acrylates (PSi-FMPG-IPDI-HEMA) were synthesized from hydroxypropyl-terminated polysiloxane (PSi), newly-prepared fluorodiol (FMPG), isophorone diisocyanate (IPDI) and hydroxyethyl methacrylate (HEMA). Their molecular structures were characterized by Fourier transform infrared and gel permeation chromatography. The compatibility of the oligomers with HFMA was validated using UV–vis transmittance analysis. The thermal stability, water and chemical resistance, contact angles and anti-adhesive performance of the films were measured. It was found all the films had good thermal properties, and excellent water and chemical resistance. The FMPG content affected the surface energy and anti-adhesive performance of the films. The films with more FMPG presented lower surface energy, lower peel strength, and higher residual adhesion. More importantly, the release films designed based on the fluorine-silicon block urethane acrylates had tremendous application potential.
研究领域:
材料科学
·
高分子化学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2019
·
IF 5.107
Yuhuan Lv,Yajie Ding,Jianqiang Wang,Bing He,Simin Yang,Kai Pan,Fu Liu
Fouling issue is the key obstacle that limited the practical applications of superwetting oil/water separation membrane. Dispersed oil phase and soluble surfactants in the emulsion are the primary foulants during separation of oil/water mixtures. Therefore, developing membranes with anti-adhesion property towards both dispersed phase and surfactant is of great importance. In this study, a superhydrophilic, underwater superoleophobic composite membrane with excellent antifouling property for separating oil-in-water emulsions stabilized by anionic surfactants was fabricated. Briefly, carboxylated carbonaceous microspheres were synthesized and loaded on nanofibrous membrane through a facile hydrothermal strategy. Acrylic acid was introduced to the hydrothermal process to manipulate the surface charge of carbonaceous microspheres. The fabricated membrane showed excellent anti-adhesion property towards dispersed phase (toluene) due to the improved surface wettability and hydration property. Underwater oil contact angle was up to 160 ± 1° (e.g., M8-2 membrane). Meanwhile, the fabricated membrane exhibited excellent anti-adhesion performance for oil-in-water emulsions stabilized by anionic surfactants (e.g. sodium laurylsulfonate) due to electrostatic repulsion. Therefore, the membrane can maintain the permeability as high as 41,020 ± 805 L m -2 h -1 bar −1 even after ten times of usage. The construction strategy and the antifouling analysis presented in the current study may give more opportunities for the understanding of superwetting oil/water separation process.
研究领域:
材料科学
·
环境工程
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产品关联
DOI
高影响因子
Journal of Materials Chemistry B
·
2021
·Vol. 9
·期 27
·5476-5483
·
IF 6.331
Pei Liu,Hongyao Du,Zhuoli Wu,Hua Wang,Juan Tao,Lianbin Zhang,Jintao Zhu
Porous polymer microneedles (MNs) with interconnected structures demonstrate great potential in dermal interstitial fluid (ISF) extraction. However, the fluid extraction rate and the recovery of the extracted ISF by the porous MNs are limited by the poor hydrophilicity and the adhesion of porous MNs. Herein, we present a facile and mild polydopamine (PDA) and poly(ethylene glycol) (PEG) coating strategy for hydrophilic and anti-adhesive modification of porous polymer MNs from a phase inversion method. As a proof-of-concept, taking polysulfone (PSF) as an example, PDA and PEG-coated MNs (PSF@PDA@PEG) are fabricated through the self-polymerization of dopamine and PEG anchoring. Thanks to the hydrophilicity and anti-adhesion of PEG, the resulting PSF@PDA@PEG MNs demonstrate improved hydrophilicity, fast fluid extraction speed, and low target molecular adhesion. Besides, this method can be extended to hydrophobic polymers generally used in medical fields, including polylactic acid (PLA), polyvinylidene fluoride (PVDF), etc. This investigation provides a new road for MN-based off-line analysis in point-of-care testing (POCT).
研究领域:
生物医学工程
·
药物递送
·
体外诊断
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Changhao Wu,Jixiao Wang,Meichao Lan,Zhan Wang,Zhi Wang
Thermoplastic polyurethanes (TPUs) films, widely used in industry and domestic, are required to have self/stimulate-healing ability and multifunction to achieve its recycling usage and adapt complex environment. Herein, the novel TPUs (PDMS/FA-PUDAs) were prepared by incorporation of biomass furfuryl alcohol (FA) and non-toxic polydimethylsiloxane (PDMS) through classic polymerization route accompanied by Diels-Alder (DA) reaction. This study investigated the combined effect of DA/rDA reaction and PDMS on improving TPU films' stimulate-healing, mechanical and anti-adhesion properties by adjusting PDMS additive amount. The experimental results demonstrated that 10 wt% PDMS and FA modified TPU film (10 % PDMS/FA-PUDA) still remained high stimulate-healing efficiency (73.48 %) after three times repair process, owing to the DA/rDA reaction was reversible between FA and bismaleimide (BMI). Besides, 10 % PDMS/FA-PUDA had superior pristine mechanical properties (Ts: 72.06 MPa, Eb: 162.45 %, Tt: 10.89 MJ/m 3 ) because PDMS promoted the formation of microphase separation structure. Moreover, the film surface presented low surface free energy (16.79 mJ/m 2 ) and satisfactory anti-adhesion behavior ascribed to the hydrophobicity of PDMS. This investigation might give a new perspective for designing multifunctional TPU using renewable and non-toxic materials.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Minhuan Liu,Fanghui Liu,Xiubin Xu,Danfeng Yu,Ian Wyman,Hui Yang,Jinben Wang,Xu Wu
Antiadhesion performance, stretchability, and transparency are highly desirable properties for materials and devices in numerous applications. However, the existing strategies for imparting materials with antiadhesion performance generally induce rigidity and opacity, and principle is yet to be provided for designing materials that combine these important parameters. Here, we show that four factors including a low surface energy, appropriate cross-linking, availability of a homogeneous and amorphous composite, and a smooth material surface can be used to design an intrinsically stretchable and transparent polymer film with antiadhesion performance against various liquids including water, diiodomethane, hexadecane, cooking oil, and pump oil. The film can be obtained via simply molding a waterborne polymer network at ambient temperature. Furthermore, the film can retain its antiadhesion performance and outstanding transparency even when it is subjected to large mechanical deformations reaching up to 1800%, and its maximal fracture strain exceeds 3000%. These design concepts offer a general platform for achieving multiple material functionalities, and may open new avenues for the surface functionalization of stretchable materials and devices.
研究领域:
高分子材料科学
·
表面功能化
·
柔性电子学
·
生物医学工程
·
纳米材料
·
界面科学
✓ 已验证
DOI
高影响因子
WATER RESEARCH
·
2023
·
IF 12.8
Jialin Song,Daliang Xu,Yonghui Han,Xuewu Zhu,Zihan Liu,Guibai Li,Heng Liang
Nanofiltration membranes have increasingly played a vital role in the purification of surface water and the recycling of wastewater. However, the problem of membrane biofouling, which leads to shortened service life and increased energy consumption, has hindered the widespread application of nanofiltration membranes. In this study, we developed functionalized nanofiltration membranes with anti-adhesive and anti-biofouling properties by coordinating Fe III and juglone onto commercial nanofiltration membranes in a facile and viable manner. Due to the hydrophilic nature of the Fe Ⅲ -juglone coating as well as its ultra-thin thickness and minimal impact on the membrane pores, the permeance of the optimally modified membrane even increased slightly (14 %). The outstanding anti-adhesive property of the Fe Ⅲ -juglone coating was demonstrated by a significant reduction in the adsorption of proteins and bacteria. Furthermore, the modified membranes exhibited lower flux decline amplitude and reduced biofilm deposition during dynamic fouling experiment, further supporting the outstanding anti-biofouling performance of the nanofiltration membrane after the modification with Fe Ⅲ -juglone coating. This study presents a novel and feasible approach for simultaneously improving the water permeance, anti-adhesive property and anti-biofouling property of commercial nanofiltration membranes.
研究领域:
环境工程
·
水处理
·
膜科学
·
生物技术
✓ 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）