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Artificial neural network modeling of tablet coating in a pan coater 平板涂布机片剂涂布的人工神经网络建模
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-10-17 DOI: 10.1007/s11998-022-00683-1
Assia Benayache, Lynda Lamoudi, Kamel Daoud

Our study decided to use the new and revolutionary approach in the field of pharmaceutical coating processes called the artificial neural network (ANN) by using the neural networks toolbox derived from the Matlab® software. The experiments were performed using tablets of Alfuzosin Chlorhydrate as a model filler, and an aqueous solution of Surelease as a polymer in different contents. The various parameters that can affect coating thickness, weight gain, and the coefficient of variation CV, such as spray rate, air pressure, solid content, speed of the drum, pan loading, and time of coating, were studied. The properties of the coated tablets were evaluated using the ANN, and both the parameters of the coating process and the properties of the coated tablets were used as a basis for optimization, as well as the choice of the optimal structure of the ANN model. It was found that the best neural network architecture had 7 neurons in the hidden layer, with a mean square error of 3.515 and a determination coefficient of nearly 1. The relative importance of each independent variable was quantified using the Garson equation. In this study, spray rate was found to have the highest impact on the properties of tablets.

我们的研究决定通过使用Matlab®软件衍生的神经网络工具箱,在制药涂层工艺领域使用新的革命性方法,即人工神经网络(ANN)。实验以水合Alfuzosin片剂为模型填料,以不同含量的Surelease水溶液为聚合物。研究了喷涂速率、气压、固含量、转鼓速度、装盘速度和喷涂时间等参数对涂层厚度、增重和变异系数CV的影响。利用人工神经网络对包衣片剂的性能进行评价,并以包衣工艺参数和包衣片剂的性能作为优化的依据,选择人工神经网络模型的最优结构。结果表明,最优的神经网络结构为隐藏层7个神经元,均方误差为3.515,决定系数接近1。每个自变量的相对重要性使用Garson方程进行量化。在本研究中,发现喷雾速率对片剂性能的影响最大。
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引用次数: 1
Influence of different photoinitiatiors in the UV-LED curing of polyester acrylated varnishes 不同光引发剂对聚酯丙烯酸清漆UV-LED固化的影响
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-10-17 DOI: 10.1007/s11998-022-00679-x
Ricardo Dossin, Alessandra Lavoratti, Rodrigo Cercena, Alexandre Gonçalves Dal-bó, Matheus Vinicius Gregory Zimmermann, Ademir José Zattera

The search for environmentally friendly coatings has gained relevance in recent years. To circumvent the use of volatile organic compounds, ultraviolet light curing has attracted considerable attention, especially with the recent advances in light emitting diodes (LEDs), wherein one of the most important components is the photoinitiator. Since UV-LED curing has a narrower wavelength spectrum than regular UV curing, the choice of photoinitiator is crucial. In this study, the influence of six types of photoinitiators in the curing of polyester acrylate varnishes was investigated. The post-curing optical, thermal, mechanical, dynamic mechanical, and morphological properties of these varnishes were examined. All varnishes were completely cured, and the resins cured with LED 1711 and diphenyl (acyl) phosphine oxide exhibited the lowest post-curing photoyellowing. Satisfactory mechanical and dynamic mechanical properties were achieved for all samples. However, due to the thickness of the films, more studies are needed to optimize the surface roughness of the varnishes.

近年来,对环保涂料的研究已经取得了重大进展。为了避免挥发性有机化合物的使用,紫外光固化引起了相当大的关注,特别是随着发光二极管(led)的最新进展,其中最重要的组成部分之一是光引发剂。由于UV- led固化具有比常规UV固化更窄的波长光谱,因此光引发剂的选择至关重要。研究了六种光引发剂对聚酯丙烯酸酯清漆固化的影响。研究了光固化后的光学性能、热学性能、力学性能、动态力学性能和形态性能。所有清漆都完全固化,用LED 1711和二苯基(酰基)氧化膦固化的树脂固化后光黄化最低。所有样品均获得了令人满意的力学和动态力学性能。然而,由于膜的厚度,需要更多的研究来优化清漆的表面粗糙度。
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引用次数: 0
Thermo-chemo-mechanical influences of impingement flow on the degradation of organic coatings in the underwater zone of offshore wind turbines 冲击流对海上风力机水下区有机涂层降解的热-化学-力学影响
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-10-12 DOI: 10.1007/s11998-022-00677-z
Amin Vedadi, Al Habib Ullah, Charles Fabijanic, Jordi Estevadeordal, Yechun Wang

Most offshore wind turbines use monopile structures anchored to seabed. In the underwater zone of these structures, water attacks the surface of the steel monopiles which is protected by organic coatings. The influence of applied stresses due to the water flow on the degradation of organic coatings is the focus of this study. For this purpose, an impingement flow chamber was employed to resemble the situation of monopile structures exposed to the shallow water currents in underwater zone. Electrochemical impedance spectroscopy was utilized to measure the changes of barrier properties of coatings exposed to the impingement flow of a 3.5 wt% NaCl solution with a variety of flow rates. Computational fluid dynamics (CFD) modeling as well as the particle image velocimetry measurements were employed to calculate and validate the magnitude of applied stresses on the surface of the coated samples. Thermal activation theory, thermal elasticity laws, and the Fick’s laws were utilized to investigate and analyze the influence of stresses on coating properties. The comparison among the obtained electrochemical parameters under different flow rates shows the direct influence of stresses on the degradation of the coatings. The utilized methods, in addition to the developed analytical procedure, can potentially predict the behavior of organic coatings applied on offshore wind turbines in underwater zone. It was concluded that the applied stresses do not influence the apparent diffusion coefficient of water in coatings, but a higher flow rate increases the volume fraction of water and coating capacitance significantly.

大多数海上风力涡轮机使用锚定在海底的单桩结构。在这些结构的水下区域,水侵蚀由有机涂层保护的钢单桩表面。本文重点研究了水流作用下的外加应力对有机涂层降解的影响。为此,采用冲击流室模拟单桩结构暴露在水下浅水流中的情况。采用电化学阻抗谱法测定了不同流速下3.5 wt% NaCl溶液冲击流对涂层阻挡性能的影响。采用计算流体力学(CFD)建模和粒子图像测速方法计算并验证了涂层样品表面的外加应力大小。利用热活化理论、热弹性定律和菲克定律研究和分析了应力对涂层性能的影响。不同流速下得到的电化学参数的比较表明,应力对涂层的降解有直接影响。所采用的方法,加上开发的分析程序,可以潜在地预测用于海上风力涡轮机的水下区域的有机涂层的行为。结果表明,施加应力对水在涂层中的表观扩散系数没有影响,但较高的流速可显著提高水的体积分数和涂层电容。
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引用次数: 1
One-step synthesis of epoxy-based silicon prepolymers and its application in UV-curable coating 一步法合成环氧基硅预聚物及其在紫外光固化涂料中的应用
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-10-11 DOI: 10.1007/s11998-022-00672-4
Fuping Bian, Xiaoquan Li, Jihe Zhao, Jiwen Hu, Xuefeng Gui, Shi Li, Shudong Lin

As described herein, a simple one-step hydrosilylation reaction was employed to synthesize alicyclic epoxy silicone prepolymers by using poly(dimethylsiloxane-co-methylhydrosiloxane) (PDMS-PHMS) with different hydrogen contents and 4-vinyl-1-cyclohexene-1,2 epoxide (VCHO) as precursors. The structures of the synthesized epoxy polysiloxane oligomer was characterized by Fourier-transform infrared (FTIR) and proton nuclear magnetic resonance (1H-NMR) spectroscopy techniques, thus confirming the successful synthesis of the prepolymers. With the addition of an appropriate amount of cationic photoinitiator, the epoxy polysiloxane prepolymers undergo cationic polymerization under ultraviolet light irradiation and were quickly cured to yield series of epoxy polysiloxane resin films. The performances of these cured films were tested and characterized by various techniques such as UV transmittance, thermal weight loss analysis, and contact angle and pencil hardness measurements. The results revealed that the surfaces of these films were uniform and transparent, and these films had excellent heat resistance, acid resistance, hydrophobicity, and ink removal properties. In addition, the influence of the cycloaliphatic epoxy monomer content on the curing behavior and network performance is explored. This study reveals that the curing rate increases as the amount of grafted cycloaliphatic epoxy monomer is increased and that a denser crosslinking network provides the resultant film. Finally, the photocurable silicone material investigated herein is simple to prepare and has excellent performance, and has potential applications in the field of anti-smudge coatings.

本文以不同氢含量的聚二甲基硅氧烷-共甲基氢硅氧烷(PDMS-PHMS)和4-乙烯基-1-环己烯-1,2环氧化物(VCHO)为前驱体,采用简单的一步硅氢化反应合成了脂环环氧有机硅预聚物。采用傅里叶红外(FTIR)和质子核磁共振(1H-NMR)技术对合成的环氧聚硅氧烷低聚物进行了结构表征,证实了预聚物的成功合成。在加入适量阳离子光引发剂的条件下,将环氧聚硅氧烷预聚物在紫外光照射下进行阳离子聚合,快速固化得到系列环氧聚硅氧烷树脂薄膜。通过紫外线透射率、热失重分析、接触角和铅笔硬度测量等多种技术对固化膜的性能进行了测试和表征。结果表明,薄膜表面均匀透明,具有优异的耐热、耐酸、疏水性和脱墨性能。此外,还探讨了环脂肪族环氧单体含量对固化行为和网络性能的影响。研究表明,随着环脂肪族环氧单体接枝量的增加,固化速率也随之提高,所得到的膜具有更致密的交联网络。最后,本文研究的光固化有机硅材料制备简单,性能优异,在防污涂料领域具有潜在的应用前景。
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引用次数: 2
Development of nano–magnesium oxide modified hybrid resin system for antimicrobial coating 纳米氧化镁改性复合树脂抗菌涂层体系的研制
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-10-11 DOI: 10.1007/s11998-022-00650-w
Ujjal Kumar Dey, Pradipta Sankar Maiti, Tapas Koley, Tapan Kumar Dhar, Tirthankar Jana

A novel organic-inorganic nanohybrid resin was synthesized through sol-gel process using nano magnesium oxide and specially designed acrylic resin. The uniqueness of this process is incorporation as well as dispersion of nano magnesium oxide into acrylic resin matrix where nano magnesium oxide is functional component. Magnesium oxide nanoparticles were successfully synthesized by sol-gel technique using magnesium nitrate as a precursor. Characterization of synthesized magnesium oxide nanoparticles and their distribution in acrylic resin matrix has been confirmed by spectroscopic, X-ray diffraction and SEM analysis. The coating based on such hybrid resin exhibited excellent anti-microbial activity. Such resin system has potential for application in antimicrobial coating.

以纳米氧化镁和特殊设计的丙烯酸树脂为原料,采用溶胶-凝胶法制备了一种新型的有机-无机纳米杂化树脂。该工艺的独特之处在于将纳米氧化镁掺入和分散到丙烯酸树脂基体中,其中纳米氧化镁是功能组分。以硝酸镁为前驱体,采用溶胶-凝胶法制备了氧化镁纳米颗粒。通过光谱、x射线衍射和扫描电镜分析,证实了合成的氧化镁纳米颗粒的表征及其在丙烯酸树脂基体中的分布。该复合树脂涂层具有良好的抗菌活性。该树脂体系在抗菌涂料中具有潜在的应用前景。
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引用次数: 2
Performance of different water-based resins in the formulation of intumescent coatings for passive fire protection 不同水性树脂在被动防火膨胀涂料配方中的性能
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-09-29 DOI: 10.1007/s11998-021-00597-4
D. Strassburger, M. R. Silveira, A. F. Baldissera, C. A. Ferreira

In civil construction, intumescent coatings are widely used in steel structures, because in a fire, this material loses approximately half of its elastic modulus at 500°C. The use of these paints is essential to ensure the structural safety of the construction as well as that of humans. The phenomenon of intumescence in paints occurs when they are subjected to high temperatures forming a carbonaceous layer that expands on the surface of the coating, with the main purpose of serving as a thermal insulator of the substrate. The development of paints with low impact on the environment has been stimulated due to restrictions on the emission of volatile organic compounds imposed by government agencies. Therefore, the development of water-based intumescent paints has become essential to meet these guidelines. In the present work, intumescent coatings were developed with different water-based resins: epoxy, acrylic and alkyd. The paints were formulated using expandable graphite as a blowing agent and expanded char source, ammonium polyphosphate as an acid source and lignin as a carbon source. The formulations were applied to steel substrates and exposed to burning tests to verify fire resistance, and in addition, the samples were characterized by combustion microcalorimetry, thermogravimetric analysis and pyrolysis coupled with gas chromatography and mass spectrometry. The carbonaceous layers were characterized by optical microscopy, scanning electron microscopy with dispersive energy spectroscopy, X-ray diffraction and Raman spectroscopy. The results of combustion microcalorimetry showed that the formulations containing lignin released less heat than the others. No toxic gases were detected in the pyrolysis of epoxy and acrylic system paints. The X-ray diffraction and Raman analyses proved the formation of thermally stable compounds in the carbonaceous layer.

在民用建筑中,膨胀涂层广泛应用于钢结构,因为在火灾中,这种材料在500℃时失去大约一半的弹性模量。这些涂料的使用对于确保建筑的结构安全以及人类的安全至关重要。当涂料在高温下形成在涂层表面膨胀的碳质层时,就会发生膨胀现象,其主要目的是作为基材的隔热层。由于政府机构对挥发性有机化合物排放的限制,对环境影响小的涂料的开发受到了刺激。因此,水性膨胀涂料的发展已成为满足这些准则的必要条件。在本工作中,用不同的水性树脂:环氧树脂、丙烯酸树脂和醇酸树脂开发了膨胀涂料。该涂料以可膨胀石墨为发泡剂、膨胀炭源、聚磷酸铵为酸源、木质素为碳源配制而成。将该配方应用于钢基体并进行燃烧测试以验证其耐火性,此外,还通过燃烧微热法、热重分析和热解结合气相色谱法和质谱法对样品进行了表征。采用光学显微镜、扫描电镜、色散能谱、x射线衍射和拉曼光谱对碳质层进行了表征。燃烧微热测定结果表明,含木质素的配方放出的热量比其他配方少。环氧、丙烯酸系涂料热解过程中未检测到有毒气体。x射线衍射和拉曼分析证实了碳质层中热稳定化合物的形成。
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引用次数: 2
Coupled effect of water absorption and ion transport in hydrated latex anti-corrosion coatings 水合乳胶防腐涂料中吸水和离子输运的耦合效应
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-09-26 DOI: 10.1007/s11998-022-00676-0
Yu Ren Zhou, Surya Effendy, Juner Zhu, Michael T. Petr, Colin D. Cwalina, Martin Z. Bazant, Bilge Yildiz, Ju Li, Michael P. Short

Water-based anti-corrosion coatings, which are environmentally-friendly replacements for organic solvent-based coatings, do not perform well enough for use in the most challenging corrosion environments. The high water absorption capacity of water-based latex films may reduce barrier performance by contributing to corrosive reactant/product transport. We seek to understand the coupled effects of water absorption and ion transport in hydrated latex films, and to propose mechanisms explaining these effects. Water absorption and ion transport in films immersed in deionized (DI) water were monitored by mass gain and electrical conductivity measurements, respectively. Despite very similar polymer compositions between films, large differences in water absorption and ion transport rates were observed and explained by percolating networks at latex particle boundaries which facilitate transport. A semi-continuum model with three-component diffusion and convection-like elastic relaxation supported the assumptions of the physical mechanisms governing water absorption and ion transport. The evidence of the coupled processes of water absorption and ion transport in hydrated latex films revealed in this study are useful for designing water-based coatings that provide high levels of corrosion resistance.

水性防腐涂料是有机溶剂型涂料的环保替代品,但在最具挑战性的腐蚀环境中表现不佳。水基乳胶膜的高吸水能力可能会通过促进腐蚀性反应物/产物的传输而降低屏障性能。我们试图了解水合乳胶膜中吸水和离子传输的耦合效应,并提出解释这些效应的机制。用质量增益法和电导率法分别监测了浸入去离子水的膜的吸水率和离子输运率。尽管膜之间的聚合物组成非常相似,但观察到吸水率和离子传输速率的巨大差异,并通过乳胶颗粒边界上的渗透网络来解释。具有三组分扩散和类对流弹性松弛的半连续介质模型支持了控制水吸收和离子输运的物理机制的假设。本研究揭示的水合乳胶膜中吸水和离子传输耦合过程的证据对设计具有高水平耐腐蚀性的水性涂料是有用的。
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引用次数: 0
Anticorrosive properties of a superhydrophobic coating based on an ORMOSIL enhanced with MCM-41-HDTMS nanoparticles for metals protection MCM-41-HDTMS纳米颗粒增强ORMOSIL超疏水涂层的防腐蚀性能
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-09-26 DOI: 10.1007/s11998-022-00675-1
Erik Uc-Fernández, Jorge González-Sánchez, Alejandro Ávila-Ortega, Yamile Pérez-Padilla, J. Manuel Cervantes-Uc, Javier Reyes-Trujeque, William A. Talavera-Pech

The anticorrosive properties of hexadecyltrimethoxysilane (HDTMS) functionalized MCM-41 silica particles (MCM-41-HDTMS) incorporated into a methyltriethoxysilane (MTES) sol-gel matrix coatings were studied. The MCM-41 particles were synthesized and functionalized with HDTMS, and added to a sol composed of MTES:methanol:NH4OH 7M to create a coating. The materials synthesized with and without MCM-41-HDTMS were deposited, by dip coating, on Cu and Fe sheets, and were physically characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle, surface energy using the Owens, Wendt, Rabel, and Kaelble (OWRK) method, and by electrochemical impedance spectroscopy (EIS). The addition of the MCM-41-HDTMS to the MTES matrix induced an increase of the contact angle by about 10 degrees with an augment in its dispersive component, caused by a lofty deposition of long carbon chains from HDTMS over the high surface area of the MCM-41 particles, changing from hydrophobic to superhydrophobic materials with a contact angle of 155° for the Cu-MTES-HDTMS sample. EIS results show that the addition of MCM-41-HDTMS increases the charge transfer resistance providing better protection to metals. The results show that with the addition of MCM-41-HDTMS to an MTES matrix it is possible to synthesize superhydrophobic coatings capable of limiting the corrosion degradation process.

Graphical abstract

研究了十六烷基三甲氧基硅烷(HDTMS)功能化MCM-41硅微粒(MCM-41-HDTMS)在甲基三乙氧基硅烷(MTES)溶胶-凝胶基涂层中的防腐性能。利用HDTMS合成MCM-41颗粒并将其功能化,并将其添加到MTES:甲醇:NH4OH 7M组成的溶胶中,形成涂层。采用浸渍法将MCM-41-HDTMS合成的材料沉积在Cu和Fe薄片上,并利用扫描电子显微镜(SEM)、原子力显微镜(AFM)、接触角、表面能(Owens, Wendt, Rabel, Kaelble (OWRK)法和电化学阻抗谱(EIS)对材料进行了物理表征。MCM-41-HDTMS加入到MTES基体后,接触角增加了约10度,分散成分增加,这是由于HDTMS的长碳链沉积在MCM-41颗粒的高表面积上,使cu - mes -HDTMS样品从疏水变为超疏水,接触角为155°。EIS结果表明,MCM-41-HDTMS的加入增加了电荷转移电阻,对金属有更好的保护作用。结果表明,在MTES基体中加入MCM-41-HDTMS,可以合成出限制腐蚀降解过程的超疏水涂层。图形抽象
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引用次数: 3
Design and fabrication of superhydrophobic layered double hydroxide and oxides composite coating on brass mesh with excellent anticorrosion, delay icing and oil-water separation ability 具有优异防腐、延迟结冰和油水分离能力的超疏水层状双氢氧化物与氧化物黄铜网复合涂层的设计与制备
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-09-26 DOI: 10.1007/s11998-022-00667-1
Yuanyuan Wang, Qian Zhong, Linqiu Wu, Pengfei Liu, Hangmin Guan, Yingfei Hu, Qing Lin, Wei Wang

In this work, a superhydrophobic and superoleophilic brass mesh had been prepared. The prepared sample displayed a water contact angle (WCA) of 160o and was characterized by field emission scanning electron microscope (FE-SEM), white light interferometer (WLI), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) techniques. Besides, a high-speed camera was used to study the impact process of a droplet on the surface of the prepared sample. The superhydrophobic brass mesh exhibited excellent self-cleaning ability, environmental adaptability, corrosion resistance (η = 98.9%), and delayed icing ability (~ 45 min). Furthermore, the superhydrophobic mesh could be used as a filter to fast and efficiently separate various kinds of oils (light and heavy oils) and oil pollutants in daily life and industry. The superhydrophobic filter could be reused 50 times for oil-water separation without any apparent decrease in its separation capability. Thus, the superhydrophobic brass mesh prepared by a simple method holds promise for various applications in the industrial field of oil-water separation.

本文制备了一种超疏水、超亲油的黄铜网。制备的样品的水接触角(WCA)为160°,并通过场发射扫描电镜(FE-SEM)、白光干涉仪(WLI)、x射线衍射(XRD)和x射线光电子能谱(XPS)技术进行了表征。此外,利用高速摄像机研究了液滴对制备样品表面的冲击过程。该超疏水黄铜网具有优异的自清洁能力、环境适应性、耐腐蚀性(η = 98.9%)和延迟结冰能力(~ 45 min)。此外,超疏水网可作为一种过滤器,在日常生活和工业中快速有效地分离各种油类(轻油和重油)和油类污染物。超疏水过滤器在油水分离中可重复使用50次,其分离性能没有明显下降。因此,用一种简单的方法制备的超疏水黄铜网在油水分离工业领域具有广泛的应用前景。
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引用次数: 5
Facile fabrication of superhydrophobic nanocomposites coating materials using nanoemulsion polymerization technique and its application for protecting the petroleum carbon steel pipelines 纳米乳液聚合技术制备超疏水纳米复合涂层材料及其在石油碳素钢管道防护中的应用
IF 2.3 4区 材料科学 Q2 Chemistry Pub Date : 2022-09-09 DOI: 10.1007/s11998-022-00669-z
M. R. Noor El-Din, A. I. Hashem, R. E. Morsi, A. Abd El-Azeim, Reham H. Mohamed

This paper aims to fabricate new superhydrophobic nanocomposite coating materials to protect the inner surfaces of the petroleum pipelines from corrosion. The batch emulsification polymerization technique (BEM) was used as a facial eco-friendly technique to prepare three hydrophobic (styrene/vinyl acetate) copolymers. The sol–gel method was used to prepare SiO2 nanoparticles (SiO2-NPs) with average size ranging from 90 to 101 nm. The functionalized SiO2-NPs were prepared using hexadecyl trimethoxy silane (HDTS) as a precursor to increasing the hydrophobicity character of the unfunctionalized SiO2-NPs. Three superhydrophobic [(styrene/vinyl acetate copolymer/functionalized SiO2 nanoparticles (SiO2NPs)] nanocomposites denoted as M1, M3, and M5 were fabricated by incorporating 1, 3, and 5 wt% of the functionalized-SiO2NPs into the styrene/vinyl acetate copolymer, respectively. The effectiveness of the fabricated nanocomposite coating materials was analyzed using contact angle measurement and transmission electron and atomic force microscopies. The results showed that the highest contact angle of 161.21o was obtained by M5-nanocomposite. The highest corrosion efficiency of 99.63% was obtained at 300 ppm concentration of M5-nanocomposite-coated solution, 298 K, and 24 days.

本文旨在制备新型超疏水纳米复合涂层材料,以保护石油管道内表面免受腐蚀。采用间歇乳化聚合技术(BEM)制备了三种疏水(苯乙烯/醋酸乙烯)共聚物。采用溶胶-凝胶法制备了平均粒径为90 ~ 101 nm的SiO2纳米颗粒(SiO2- nps)。以十六烷基三甲氧基硅烷(HDTS)为前驱体制备了功能化SiO2-NPs,提高了非功能化SiO2-NPs的疏水性。通过在苯乙烯/醋酸乙烯共聚物中分别加入1、3和5 wt%的功能化SiO2纳米颗粒(SiO2NPs),制备了3种超疏水纳米复合材料,分别为M1、M3和M5。采用接触角测量、透射电子显微镜和原子力显微镜对制备的纳米复合涂层材料的有效性进行了分析。结果表明,m5纳米复合材料的接触角最高,达到161.21。当m5纳米复合涂层溶液浓度为300 ppm、温度为298 K、腐蚀时间为24 d时,腐蚀效率最高,达到99.63%。
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引用次数: 2
期刊
Journal of Coatings Technology and Research
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