Surface Innovations最新文献_第5页

Wetting stability of flexible superamphiphobic surfaces under stretching loading 拉伸载荷下柔性超双疏表面的润湿稳定性

4区材料科学

Surface Innovations Pub Date : 2023-02-01 DOI: 10.1680/jsuin.21.00079

Shuangshuang Xu, Qing Wang, Ning Wang, Lei Qu

{"title":"Wetting stability of flexible superamphiphobic surfaces under stretching loading","authors":"Shuangshuang Xu, Qing Wang, Ning Wang, Lei Qu","doi":"10.1680/jsuin.21.00079","DOIUrl":"https://doi.org/10.1680/jsuin.21.00079","url":null,"abstract":"Wetting stability is important for superamphiphobic surfaces used in oil–water environments. Maintaining the wetting stability of flexible superamphiphobic surfaces under stretching is challenging. Here, flexible surfaces with stable superamphiphobicity under stretching were fabricated by covering flexible polydimethylsiloxane substrates with superamphiphobic powders. Superamphiphobic powders composed of micro- and nanoparticles were prepared by a chemical substitution reaction and modification treatment. The fabricated flexible surfaces possessed contact angles for water, kerosene and peanut oil of 155, 152 and 153°, respectively, exhibiting superhydrophobicity and superoleophobicity. The self-cleaning properties of the fabricated flexible surface were studied by removing contaminants from the surfaces using water and oil droplets. Also, the wettability and morphology of the fabricated flexible surface under stretching were investigated. It was found that the fabricated flexible surface maintained stable superhydrophobicity and superoleophobicity when the stretching strain reached 60% due to the fact that it still kept micro–nano double-scale structures after being stretched. The fabricated flexible surface coated with superamphiphobic powders with wetting stability is expected to be used in the field of liquid repellency.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Award-winning paper in 2021 2021年获奖论文

4区材料科学

Surface Innovations Pub Date : 2023-02-01 DOI: 10.1680/jsuin.2023.11.1.209

引用次数: 0

Mask-assisted chemical processing methods to fabricate wettability patterns on copper substrates for liquid manipulation 掩模辅助化学处理方法在铜衬底上制造用于液体操作的润湿性图案

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2023-01-26 DOI: 10.1680/jsuin.22.01075

Wangyu Liu, Zhen Liang, Weigui Xie, Guangwen Huang, Yuanqiang Luo

{"title":"Mask-assisted chemical processing methods to fabricate wettability patterns on copper substrates for liquid manipulation","authors":"Wangyu Liu, Zhen Liang, Weigui Xie, Guangwen Huang, Yuanqiang Luo","doi":"10.1680/jsuin.22.01075","DOIUrl":"https://doi.org/10.1680/jsuin.22.01075","url":null,"abstract":"Extreme wettability-patterned surfaces have attracted great attentions due to their excellent application prospects for liquid manipulation. However, developing a simple and universal method to fabricate wettability patterns on a variety of metals remains a great challenge. In this work, we developed three specific preparation approaches to fabricate wettability patterns on copper substrate using chemical processing combined with mask technology. Surface wettability can be suitably controlled by changing the solution concentration and immersing time. The surface has good stability and low pollution under external action. Three preparation methods have differences in preparation process, wettability and mask function. On the basis of these approaches, various complex wettability patterns could be prepared on different metal substrates using designed masks. Furthermore, various wettability-patterned surfaces were successfully fabricated for liquid manipulating applications, such as controlling fluid shape and water transport. These methods proposed is expected to have promising application potential in patternable printing, water collection and heat-dissipation devices.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43401370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and corrosion resistance of KTNT-waterborne polyurethane coatings ktnt水性聚氨酯涂料的制备及其耐腐蚀性能

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2023-01-16 DOI: 10.1680/jsuin.20.00054

Xia Wang, Xiong Li, Ling Feng Xu, Q. Zhang, Yue Gu

{"title":"Preparation and corrosion resistance of KTNT-waterborne polyurethane coatings","authors":"Xia Wang, Xiong Li, Ling Feng Xu, Q. Zhang, Yue Gu","doi":"10.1680/jsuin.20.00054","DOIUrl":"https://doi.org/10.1680/jsuin.20.00054","url":null,"abstract":"In this study, titanate nanotubes (TNTs) were prepared via the hydrothermal method and then modified with γ-aminopropyltriethoxysilane (KH550) to obtain KTNTs with good dispersion properties. A KTNT-WPU composite coating was prepared by blending KTNTs with waterborne polyurethane (WPU). Fourier transform infrared spectroscopy (FT-IR) was used to characterize TNT compositions before and after modification. Thermogravimetric analysis (TGA) and electrochemical impedance spectroscopy (EIS) were used to test the thermal stability and corrosion resistance of the composite coating. The results showed that KH550 was successfully connected to the TNT surface. This improved thermal stabilities and corrosion resistances of the KTNT-WPU coatings. The fastest thermal decomposition rate for the 0.5% KTNT composite coating was 2%/min lower than that of the pure WPU coating. At the same time, the impedance of the composite coating could reach 7.58×107 Ω·cm2, the corrosion current density was 3.20×10−9 A·cm-2, and the corrosion inhibition rate reached 99.87%. The composite coating had an effective corrosion protection time of 120 h and the protective effect of the coating weakened when the immersion time exceeded 360 h.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48350485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modifying optical properties of hydrogen beam irradiated flexible PVA polymeric films 氢束辐照柔性聚乙烯醇聚合物薄膜光学性能的改性

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2023-01-11 DOI: 10.1680/jsuin.22.01078

B. M. Alotaibi, A. Atta, M. Atta, E. Abdeltwab, M. Abdel-Hamid

{"title":"Modifying optical properties of hydrogen beam irradiated flexible PVA polymeric films","authors":"B. M. Alotaibi, A. Atta, M. Atta, E. Abdeltwab, M. Abdel-Hamid","doi":"10.1680/jsuin.22.01078","DOIUrl":"https://doi.org/10.1680/jsuin.22.01078","url":null,"abstract":"In this study, Polyvinyl alcohol (PVA) films were irradiated with hydrogen beam of fluence 8x1017, 16x1017, and 24x1017 ions/cm2 using handmade cold beam ion source. The resulting changes in the structure characteristics and functional groups of irradiated PVA films were studied using XRD and FT-IR methods respectively. In addition, the optical band gaps and Urbach energies of untreated and irradiated PVA were calculated using Tauc’s equation. The tail is 1.29 eV for PVA, improved to 1.59 eV and 4.17 eV when PVA was exposed to 8x1017 and 24x1017 ions/cm2, respectively. Furthermore, the parameters including refractive index, extinction coefficient, conductivities, and permittivity for untreated and treated samples have been calculated. Furthermore, the dispersion characteristics of un-irradiated and treated films are evaluated. With increasing hydrogen fluence of 8x1017 to 24x1017 ions/cm2, the relaxation time is reduced from 2.75x10−14 sec to 0.045x10−14 sec. On the other hand, the optical susceptibility of pure and treated PVA has been calculated. The modification which induced in the optical characteristics of the irradiation films suggests these films to apply in a different uses like optoelectronics devices.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47957513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Effects of asymmetric cooling and surface wettability on the orientation of the freezing tip 非对称冷却和表面润湿性对冻结尖端取向的影响

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2023-01-10 DOI: 10.1680/jsuin.22.01081

A. Starostin, V. Strelnikov, L. Dombrovsky, S. Shoval, O. Gendelman, E. Bormashenko

{"title":"Effects of asymmetric cooling and surface wettability on the orientation of the freezing tip","authors":"A. Starostin, V. Strelnikov, L. Dombrovsky, S. Shoval, O. Gendelman, E. Bormashenko","doi":"10.1680/jsuin.22.01081","DOIUrl":"https://doi.org/10.1680/jsuin.22.01081","url":null,"abstract":"Freezing of water droplets placed on the bare and superhydrophobic surfaces of polymer wedges is studied both experimentally and computationally. Two-dimensional numerical calculations of the transient temperature field in a chilled polymer wedge show that the direction of heat flux from the droplet through the thermal contact region with the wedge differs significantly from the normal to the wedge surface. A novel approximate computational model is proposed that takes into account the variable area of the water freezing front in the droplet. This model gives a quantitative estimate of the faster freezing of the droplet on the bare surface. The obtained numerical results agree with the laboratory measurements. The velocity of the crystallization front and the droplet deformation including the so-called freezing tip formation are monitored in the experiment. The direction of the freezing cone axis appears to be noticeably different for the cases of bare and superhydrophobic wedge surfaces. This is explained by the fact that the direction of the freezing cone axis is controlled by the local direction of the heat flux. For a hydrophobic wedge surface, the deviation of the freezing tip from the vertical is smaller, because the reduced thermal contact area reduces the influence of the heat flux direction at the wedge surface.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43168096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Suppression of Leidenfrost instability of a large drop using multiple rods and rectangular mesh elements 用多杆和矩形网格单元抑制大液滴的Leidenfrost不稳定性

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2023-01-09 DOI: 10.1680/jsuin.22.01085

Xiang Wang, Manjarik Mrinal, Z. Han, C. Luo

{"title":"Suppression of Leidenfrost instability of a large drop using multiple rods and rectangular mesh elements","authors":"Xiang Wang, Manjarik Mrinal, Z. Han, C. Luo","doi":"10.1680/jsuin.22.01085","DOIUrl":"https://doi.org/10.1680/jsuin.22.01085","url":null,"abstract":"Large Leidenfrost drops may be unstable when their diameters exceed a critical value. Via theoretical and experimental investigations, this study explored the feasibility of suppressing Leidenfrost instability in a large container, by meshing the container or its central portion into rectangular elements. Thin rods were used to construct these rectangular elements. Thin rods were used to construct these rectangular elements. Leidenfrost instability was considered in four rectangular configurations. They were also the rectangular mesh elements that might be used. There were two findings. First, the diameter of the largest inscribed cylinder in a rectangular configuration was the critical dimension to determine Leidenfrost instability. Second, the threshold value of this diameter in a rectangular configuration with rod(s) was 8.9 ± 0.7λ, where λ was the capillary length of water. It was larger than its counterparts in both a rectangular container (without the presence of a rod) and a circular container (with or without the presence of a rod), due to the strong effect of the rod in a rectangular configuration. Based on these two findings, a large rectangular container was meshed into rectangular elements using thin rods, with the diameter of the largest inscribed cylinder in each element below the threshold value. This mesh method suppressed the Leidenfrost instability in the large container.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46485979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Greenly prepared antimicrobial cotton fabrics using bioactive agents from Cupressaceae pods 利用柏科豆荚中的生物活性剂绿色制备抗菌棉织物

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-12-22 DOI: 10.1680/jsuin.22.01073

Murtaza H Syed, Syed Qutaba, Lubna Syed, M. A. K. Zahari, N. Abdullah, Z. Abro

{"title":"Greenly prepared antimicrobial cotton fabrics using bioactive agents from Cupressaceae pods","authors":"Murtaza H Syed, Syed Qutaba, Lubna Syed, M. A. K. Zahari, N. Abdullah, Z. Abro","doi":"10.1680/jsuin.22.01073","DOIUrl":"https://doi.org/10.1680/jsuin.22.01073","url":null,"abstract":"Antimicrobial fabrics have become essential in organizing and managing infestation and reducing odor formation by microbes. Various green sources add antimicrobial properties to fabrics, particularly cotton. However, the major problem with microbial fabrics is the reduction in antimicrobial activity after each wash. Cupressaceae pods have shown natural potential as an antimicrobial agent in herbal medicine. This study utilizes Cupressaceae for incorporating antimicrobial properties in cotton fabrics. After methanolic extraction of the Cupressaceae extract, it was applied to cotton fabrics. The application of the extract to cotton fabrics was performed by optimizing concentration, temperature and pH parameters. The extract-modified cotton showed the best performance at a 15 wt.% concentration, 140°C and pH 7.5. The treated fabrics were tested in the presence and absence of a binder using the standard washing method ISO 105-C10:2006. The mordant-treated fabric retained 16.4% more activity after 20 washes. Finally, the antimicrobial activity of the greenly developed antimicrobial cotton fabrics was checked against Staphylococcus, Escherichia coli, Bacillus and Candida albicans by using the AATCC 100-2004 test method. The study indicated that the prepared cotton fabric showed better antimicrobial activity against the earlier mentioned strains, except for C. albicans. The prepared antimicrobial fabric showed a wide range of antimicrobial activities and a lower fungal activity. Thus, the prepared fabric can be used for wound dressings, hospital staff gown material and athlete’s sportswear to prevent microbial infection.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42956170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Friction and adhesion of Johansson gauge blocks 约翰逊量块的摩擦和附着力

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-12-16 DOI: 10.1680/jsuin.22.01083

A. Breki, Michael Nosonovsky

引用次数: 0

Self-cleaning coating for exterior wall of concrete building 混凝土建筑外墙自洁涂料

IF 3.5 4区材料科学

Surface Innovations Pub Date : 2022-11-21 DOI: 10.1680/jsuin.22.01060

Guanghao Chen, Defeng Yan, Jiyu Liu, Youjiang Xu, Yuyang Zhou, Binghan Wu, Jinlong Song

{"title":"Self-cleaning coating for exterior wall of concrete building","authors":"Guanghao Chen, Defeng Yan, Jiyu Liu, Youjiang Xu, Yuyang Zhou, Binghan Wu, Jinlong Song","doi":"10.1680/jsuin.22.01060","DOIUrl":"https://doi.org/10.1680/jsuin.22.01060","url":null,"abstract":"Due to the advantages of beautiful appearance, the exterior wall real stone paint with properties of low-cost and good weather resistance has been widely applied in the concrete building for aesthetics and protection. However, the hydrophilicity of the exterior wall real stone paint make them susceptible to pollution by dust, acid rain, etc. Superhydrophobic coatings with the excellent self-cleaning property may effectively alleviate these problems, but the fabrication of the real stone paint coatings with superhydrophobicity has not been reported yet. Here, we developed a superhydrophobic exterior real stone paint coating (SEP-coating) with a water contact angle of 154 ± 3° and a rolling angle of 13 ± 2° by a simple and high-efficient physical blending method using emulsion, natural sand, low surface energy reagents and nano-SiO2. The SEP-coating possessed an excellent self-cleaning property for the pollutant including soil, dust and rust water, and had good anti-corrosion capability and outdoor time stability The SEP-coating also showed better solar reflectance characteristics than normal exterior real stone paint coating, which may contribute to lower temperatures in buildings during hot weather and save energy. In addition, a colorful SEP-coating for decorative requirements and large-area SEP-coating for practical application could be effectively fabricated, which is expected to have promising application prospects.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45085190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1