Journal of Coatings Technology and Research最新文献_第6页

Corrosion behavior and antibacterial adhesion of superhydrophobic composite coatings on AZ31 magnesium alloys AZ31 镁合金上超疏水复合涂层的腐蚀行为和抗菌附着力

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-05-06 DOI: 10.1007/s11998-024-00923-6

Huanlin Zhang, Shu Cai, Hang Zhang, Lei Ling, You Zuo, Hao Tian, Tengfei Meng, Guohua Xu, Xiaogang Bao, Mintao Xue

{"title":"Corrosion behavior and antibacterial adhesion of superhydrophobic composite coatings on AZ31 magnesium alloys","authors":"Huanlin Zhang, Shu Cai, Hang Zhang, Lei Ling, You Zuo, Hao Tian, Tengfei Meng, Guohua Xu, Xiaogang Bao, Mintao Xue","doi":"10.1007/s11998-024-00923-6","DOIUrl":"10.1007/s11998-024-00923-6","url":null,"abstract":"<div><p>To improve the corrosion resistance and antibacterial adhesion properties of AZ31 magnesium alloy as an orthopedic implant material, superhydrophobic hydroxyapatite/lauric acid composite coatings (HA/LA) were successfully fabricated on AZ31 magnesium alloy utilizing the hydrothermal method and followed by immersion treatment in lauric acid solution. The underlying HA coating synthesized by hydrothermal technique presents a micro-/nanohierarchical structure, appearing superhydrophilic, while the composite coatings (HA/LA) obtained by subsequent treatment with lauric acid exhibited excellent superhydrophobic properties with a contact angle of 152.5 ± 1.2° and a rolling angle of 1.5 ± 0.3°. Electrochemical measurements and long-term corrosion resistance test conducted in simulated body fluid (SBF) indicate a significant enhancement in the corrosion resistance of the HA/LA composite coating. Meanwhile, in vitro bacterial experiments demonstrated that the superhydrophobic composite coating surface was able to reduce the adhesion of adherent <i>Escherichia coli</i> and <i>Staphylococcus aureus</i> by more than 98%, showing excellent antibacterial adhesion properties, indicating that the superhydrophobic HA/LA composite coating in this work grants magnesium alloy with excellent corrosion resistance and antibacterial properties.</p></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":"21 5","pages":"1663 - 1675"},"PeriodicalIF":2.3,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140885703","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

Coatings with high solar reflectivity: heat build-up in laboratory and real conditions 高太阳反射率涂层：实验室和实际条件下的热量积累

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-05-06 DOI: 10.1007/s11998-024-00935-2

Ewa Langer, Małgorzata Zubielewicz, Bartosz Kopyciński

引用次数: 0

Evaluation of hydrophobic/hydrophilic and antireflective coatings for photovoltaic panels 光伏电池板疏水/亲水涂层和抗反射涂层的评估

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-05-03 DOI: 10.1007/s11998-024-00929-0

Yadav Narendra Kumar Rajbahadur, Avinash Kumar, Sushant Negi, Simanchal Kar

{"title":"Evaluation of hydrophobic/hydrophilic and antireflective coatings for photovoltaic panels","authors":"Yadav Narendra Kumar Rajbahadur, Avinash Kumar, Sushant Negi, Simanchal Kar","doi":"10.1007/s11998-024-00929-0","DOIUrl":"https://doi.org/10.1007/s11998-024-00929-0","url":null,"abstract":"<p>Photovoltaic modules have emerged as a crucial technology for generating electricity from renewable sources to advance toward achieving neutrality in carbon emissions. Nevertheless, the efficacy and overall effectiveness of solar PV cells are significantly affected by various aspects, including ecological conditions and operation and maintenance practices. These factors directly impact the outcome, energy utilization efficacy, productivity, and lifespan of the PV cells, ultimately influencing the economic aspects of power generation. A highly effective method for mitigating ecological factors is applying a self-cleaning and antireflective coating, which utilizes micro–nano structures and surface wettability to facilitate cleaning and enhance light transmission. This study investigates the influence of ecological and operational factors on solar PV cell effectiveness. Further, a brief summary of the basic principles and development of self-cleaning and antireflective coating is presented by examining recent research. The review reveals that soiling, humidity, and temperature negatively influence the performance of PV modules. In humid conditions, dust deposition leads to the formation of adhesive mud on PV cells, resulting in a reduction of power generation by as high as ~ 70%. In addition, it is also suggested that the application of self-cleaning and antireflection coating on PV modules enhances its efficiency by ~ 11% compared to uncoated modules. Lastly, a comparative analysis of hydrophobic and hydrophilic coatings, various coating methods, and their durability and life expectancy are summarized, and a few effective processes are highlighted for their promising research outcomes.</p>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":"22 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140886113","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

Testing for biofilm release as a function of simulated ship speed using a calibrated water jet device 使用校准喷水装置测试生物膜释放与模拟船速的函数关系

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-04-30 DOI: 10.1007/s11998-024-00934-3

Zachary Shepard, D. M. L. Meyer, Kayla Kurtz, Asa Julien, Vinka Oyanedel-Craver, Lucie Maranda

{"title":"Testing for biofilm release as a function of simulated ship speed using a calibrated water jet device","authors":"Zachary Shepard, D. M. L. Meyer, Kayla Kurtz, Asa Julien, Vinka Oyanedel-Craver, Lucie Maranda","doi":"10.1007/s11998-024-00934-3","DOIUrl":"10.1007/s11998-024-00934-3","url":null,"abstract":"<div><p>Biofouling release coatings (BRCs) have received attention for their potential to limit the negative impacts of biofouling on marine shipping. The calibrated water jet (CWJ, patent # US 8,984,958 B1) can be used to study the effectiveness of BRCs as a function of ship speed. Using a balance of force and linear momentum, we examined the theory and application of the CWJ for simulating the effect of ship speed on biofilm release for surfaces fouled under (1) laboratory and (2) natural conditions. Greater fouling release corresponded with an increase in CWJ pressure and, therefore, simulated ship speed for the surfaces coated with HullKote. The effectiveness of the CWJ was further confirmed for biofilm release from glass fouled naturally by submersion in flow-through seawater. A scaling analysis confirms that the results of these small-scale experiments are applicable to larger-scale biofouling release from ship hulls. This study is the first to utilize the pressure of a CWJ to quantify biofouling release as a function of simulated ship speed.</p></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":"21 5","pages":"1773 - 1781"},"PeriodicalIF":2.3,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11998-024-00934-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140829088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal insulating superhydrophobic composite coating for building thermal management 用于建筑热管理的隔热超疏水复合涂层

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-04-29 DOI: 10.1007/s11998-024-00925-4

Meihui Tang, Lin Su, Zhimeng Zhao, Siyu Wu, Pengfei Li, Xiaofeng Zhao, Fei Zhou, Yuxiang Li, Shanlin Wang

引用次数: 0

Preparation and coating properties of alkyd polyol-based autoxidizable waterborne polyurethane dispersions with high fatty acid content, long storage stability, and low viscosity 具有高脂肪酸含量、长储存稳定性和低粘度的醇酸多元醇基可自氧化水性聚氨酯分散体的制备和涂料性能

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-04-29 DOI: 10.1007/s11998-024-00928-1

Zecheng Lin, Qingyuan Zeng, Yucheng Zhang, Yongbo Ding, Shuai Chen, Yongluo Qiao, Liang Shen

{"title":"Preparation and coating properties of alkyd polyol-based autoxidizable waterborne polyurethane dispersions with high fatty acid content, long storage stability, and low viscosity","authors":"Zecheng Lin, Qingyuan Zeng, Yucheng Zhang, Yongbo Ding, Shuai Chen, Yongluo Qiao, Liang Shen","doi":"10.1007/s11998-024-00928-1","DOIUrl":"10.1007/s11998-024-00928-1","url":null,"abstract":"<div><p>In order to increase the concentrations of bio-based alkyd polyols (or fatty acids) in self-crosslinking polyurethane dispersions, herein, a series of novel alkyd polyol-based autoxidizable waterborne polyurethane dispersions (AWPUDs) with different fatty acid contents, long storage stability, and low viscosity were successfully prepared by adding dimethylol propionic acid (DMPA) self-emulsifier in the late stage of their synthesis. They and their corresponding curing films were characterized by Fourier transform infrared spectroscopy (FTIR), particle size analysis, rheology measurement, storage stability evaluation, thermogravimetric analysis, dynamic thermomechanical analysis (DMA), etc. The results showed that the addition process of DMPA played a critical role for the excellent features of AWPUDs. Additionally, the crosslinking density, gel contents, and water contact angles of AWPUD films increased with the enlarged fatty acid contents, whereas their water uptake capability decreased. Moreover, a series of AWPUD coatings were prepared, and their properties like drying times, hardness development, pencil hardness, adhesion capability, impact resistance, flexibility, and water resistances were all effectively improved with the increased fatty acid contents, significantly superior to those of waterborne alkyd coatings and waterborne polyurethane coatings without fatty acids.</p></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":"21 5","pages":"1713 - 1727"},"PeriodicalIF":2.3,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140836013","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

Advancing corrosion protection in confined spaces: a solvent-free UV LED-curable coating for steel pipelines with enhanced barrier properties and harsh environment performance 推进密闭空间的防腐蚀保护：用于钢质管道的无溶剂紫外线 LED 固化涂料，具有更强的阻隔性能和恶劣环境性能

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-04-29 DOI: 10.1007/s11998-024-00950-3

Alessandro Condini, Carlo Trentalange, Angela Giuliani, Andrea Cristoforetti, Stefano Rossi

{"title":"Advancing corrosion protection in confined spaces: a solvent-free UV LED-curable coating for steel pipelines with enhanced barrier properties and harsh environment performance","authors":"Alessandro Condini, Carlo Trentalange, Angela Giuliani, Andrea Cristoforetti, Stefano Rossi","doi":"10.1007/s11998-024-00950-3","DOIUrl":"10.1007/s11998-024-00950-3","url":null,"abstract":"<div><p>This study investigates a novel solvent-free, UV LED-curable coating as a robust corrosion protection solution for the inner surface of steel pipelines. The properties of the UV-cured film were characterized in terms of reactivity, thermomechanical properties, and adhesion to metal substrates. The coating was applied to the inside steel pipelines and cured using a patented UV LED lamp designed to fit in confined spaces. Finally, electrochemical impedance spectroscopy characterization and an accelerated cyclic electrochemical technique were performed on the coated pipes to study the corrosion protection properties of the coating, both with and without the addition of inorganic fillers. The results were compared to a commercially available thermally cured coating. It was found that the UV-cured coating confers high barrier properties, effectively preventing liquid penetration even under elevated temperature conditions. Furthermore, the corrosion protection performance in harsh environments was comparable to and, in some cases, higher than standard epoxy linings.</p></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":"21 6","pages":"2009 - 2022"},"PeriodicalIF":2.3,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11998-024-00950-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140829005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crosslinking characteristics of aziridine crosslinkers in polyurethane-based clearcoats for automotive applications 氮丙啶交联剂在汽车用聚氨酯清漆中的交联特性

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-04-25 DOI: 10.1007/s11998-024-00932-5

Daegeun Oh, Junyoung Park, Young Kyu Song, Seung Man Noh, Hyun Wook Jung

{"title":"Crosslinking characteristics of aziridine crosslinkers in polyurethane-based clearcoats for automotive applications","authors":"Daegeun Oh, Junyoung Park, Young Kyu Song, Seung Man Noh, Hyun Wook Jung","doi":"10.1007/s11998-024-00932-5","DOIUrl":"10.1007/s11998-024-00932-5","url":null,"abstract":"<div><p>Crosslinking systems play a vital role in the coating industry by significantly improving the wear resistance, chemical resistance, and toughness of the coatings. In particular, polyfunctional aziridines, known for their distinctive nitrogen-containing three-membered ring structures, serve as versatile crosslinkers in automotive coatings and adhesives. These crosslinkers can effectively enhance both the physical and chemical properties of polyurethane coatings. This study focuses on investigating the impact of two different trifunctional aziridines on the thermal curing characteristics of 2K clearcoats containing free-isocyanate crosslinker and polyacrylic resin. The analysis confirmed the ring-opening reaction of the aziridine crosslinker with the carboxyl groups in the resin at room temperature, as evidenced by changes in the –NH stretching frequency in the Fourier transform infrared spectra. To assess the real-time curing performance of aziridines during thermal curing at 80 °C, rheological storage modulus and curing behavior of the formulated 2K clearcoats were measured using a rotational rheometer and a rigid-body pendulum tester. Additionally, nano-indentation and nano-scratch tests were conducted to quantitatively evaluate the surface hardness and scratch resistance of the cured clearcoat films. By examining the relationship between the curing dynamics and the final mechanical properties, this study offers insights into optimizing the amount of aziridines required to enhance the properties of clearcoat films.</p></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":"21 6","pages":"1893 - 1906"},"PeriodicalIF":2.3,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140654162","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

Keratin-modified waterborne polyurethane: an alternative circular economy technology for adding value to cattle hair waste from leather tanneries 角蛋白改性水性聚氨酯：皮革厂牛毛废料增值的替代循环经济技术

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-04-24 DOI: 10.1007/s11998-024-00933-4

Liu Jie, Zhang Feifei, Qiao Pengfei, Jin Liqiang, Wang Yulu, Lu Aide, Nian Xinyue

{"title":"Keratin-modified waterborne polyurethane: an alternative circular economy technology for adding value to cattle hair waste from leather tanneries","authors":"Liu Jie, Zhang Feifei, Qiao Pengfei, Jin Liqiang, Wang Yulu, Lu Aide, Nian Xinyue","doi":"10.1007/s11998-024-00933-4","DOIUrl":"10.1007/s11998-024-00933-4","url":null,"abstract":"<div><p>Waterborne polyurethane (WPU) has excellent performance because of its special soft and hard segments in polymer chains, but the relatively high cost, poor water vapor permeability, and inferior biocompatibility limit its application. The introduction of biomass materials can improve the performance of WPU. Keratin belongs to natural macro-molecule compounds which contain numerous peptide bonds and hydrophilic groups. It can make up for the shortcomings of WPU materials. In this study, keratin was extracted from the recycled cattle hair waste, and then it was chemically bonded with isocyanates, polyols, and other raw materials to prepare a keratin-modified WPU film which has excellent performance. First, polytetramethylene ether glycol (PTMEG) was reacted with 4.4-dicyclohexylmethane diisocyanate (HMDI) to form a prepolymer, then it was reacted with dimethylol propionic acid (DMPA), neopentyl glycol (NPG) and trimethylolpropane (TMP). The addition of keratin was in the emulsification process, and the structure of keratin-modified WPU was investigated. TG analysis results showed that the addition of keratin can improve the thermal stability of the WPU film with a higher residual carbon content at 600°C. The DMA analysis showed that the mechanical properties of the modified WPU film with a certain amount of keratin added (≤ 0.1%) were significantly improved. The yellowing resistance test showed that the addition of an appropriate amount (≤ 0.1%) of keratin can increase its stability to light, but the addition of an excessive amount of protein (≥ 0.2%) will result in a decrease in the yellowing resistance of the WPU film.</p></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":"21 5","pages":"1759 - 1771"},"PeriodicalIF":2.3,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140660070","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

Novel organosilicon-modified polyisocyanate crosslinkers for curing of waterborne hydroxyl acrylic resin 用于固化水性羟基丙烯酸树脂的新型有机硅改性聚异氰酸酯交联剂

IF 2.3 4区材料科学

Journal of Coatings Technology and Research Pub Date : 2024-04-22 DOI: 10.1007/s11998-024-00927-2

Yu-Ting Cao, Shuai-Wei Lu, Yu-hang Zhou, Jun Wei

{"title":"Novel organosilicon-modified polyisocyanate crosslinkers for curing of waterborne hydroxyl acrylic resin","authors":"Yu-Ting Cao, Shuai-Wei Lu, Yu-hang Zhou, Jun Wei","doi":"10.1007/s11998-024-00927-2","DOIUrl":"10.1007/s11998-024-00927-2","url":null,"abstract":"<div><p>The organosilicon intermediate with three hydroxyl groups was synthesized from isopropanol amine (MIPA) and (3-glycidoxypropyl) trimethoxy silane. Meanwhile, a polyurethane prepolymer, prepared by the polymerization of isophorone diisocyanate with 2, 2-bis(hydroxymethyl) propionic acid and polyethylene glycol (PEG-600) in sequence, was chain extended by the intermediate. Ultimately, methyl ethyl ketone oxime, a conventional isocyanate (NCO) blocking agent, was chosen to inactivate the branched polymers. Thus, a waterborne blocked crosslinker containing siloxane groups was achieved, which was further treated by a mixture of alcohol and water to obtain its hydrolyzed product, i.e., a crosslinker containing silanol groups. The structure and thermal properties of crosslinkers were analyzed by means of <sup>1</sup>H-NMR, FTIR, TG, and DTG, respectively. The gel content, hardness, and adhesion of the cured coatings were also investigated. The results confirm the crosslinker system containing silanol groups performs much better, and when the hardness reaches 0.64 or above, the adhesion can still be maintained above 1.2 MPa.</p></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":"21 5","pages":"1703 - 1711"},"PeriodicalIF":2.3,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11998-024-00927-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140674270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0