Preparation of waterborne phosphated acrylate–epoxy hybrid dispersions and their application as coil coating primer

Yu, Jianfeng; Hong-xia, Pan; Zhou, Xiaodong

doi:10.1007/s11998-013-9556-5

Cited by 31 publications

(23 citation statements)

References 11 publications

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“…As could be seen in Figure 3, only one T g appeared in each DSC curve, and T g moved to high temperature (76.7!95.38C) as the epoxy resin content increased from 10 to 30 wt % (Figure 3: inset). The presence of only one T g indicated the whole system was very uniform, 6 and further verified that the desired chemical reaction was achieved (Scheme 1) as a supplement to FTIR analysis. Furthermore, the increase in T g with increasing epoxy resin content demonstrated that the incorporation of epoxy resin showed a positive effect on the T g of the polymeric matrix and promoted the thermal stability.…”

Section: Thermal Stability Analysismentioning

confidence: 58%

“…[1][2][3][4] To alleviate the problem, waterborne varnish has been recognized due to its environmental friendliness and low toxicity. [5][6][7][8] Owing to its high adhesion, outstanding corrosion resistance and good insulation, epoxy resin has been widely used as an important industrial raw material in metal corrosion protection, 9,10 waterproof, 11,12 adhesive, 13,14 insulation, 15,16 and other industrial fields. 17,18 Much valuable work has been done on the investigation of waterborne epoxy resin 19,20 or waterborne polymer composites based on epoxy resin.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of epoxy‐modified tung oil waterborne insulation varnish

Cao

Wang

Cai

et al. 2015

J of Applied Polymer Sci

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This work aimed to develop a novel epoxy-modified tung oil waterborne insulation varnish with blocked hexamethylene diisocyanate as a curing agent. The Diels-Alder reaction between tung oil and maleic anhydride, and the ring-opening esterification reaction of epoxy resin were confirmed. The conversion rate of epoxy was explored as a function of reaction time and temperature. The effects of epoxy resin content on the thermal stability, water absorption and insulation properties (insulation strength, volume resistivity, and surface resistivity) of films were investigated, and the resistances of films to salted water were evaluated. The increase in epoxy resin contents could improve the thermal stability and insulation properties of films, and decreased the water adsorption of films, but when the epoxy resin content reached 30% and above, the water solubility of resin became poor. After being immersed in 3.5 wt % NaCl solution, the electrical insulation strength of films were lower than that in dry state, and decreased as the immersed time prolonged. In particular, the electrical insulation strength loss of films increased significantly for epoxy resin content at 15% and below. Furthermore, the increase of epoxy resin content could improve the hardness and adhesion of films, but the flexibility of films became worse. On the basis of experimental, the epoxy resin content at 25% was appropriate to prepare waterborne epoxy-modified tung oil resin. The resulting varnish may have potential as an immersing insulation varnish for the spindle of electric motor. V C 2015Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42755.

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Section: Thermal Stability Analysismentioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Preparation and properties of epoxy‐modified tung oil waterborne insulation varnish

Cao

Wang

Cai

et al. 2015

J of Applied Polymer Sci

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“…Soluções em aço galvanizado pré-pintado são produtos existentes para atender majoritariamente dois tipos de mercado: construção civil e linha branca (EDAVAN;KOPINSKI, 2009;MOON et al, 2012;YU et al, 2014;KIM, 2016). Existem outras aplicações para o aço pré-pintado, porém em volume muito pequeno ou que ainda estão em desenvolvimento.…”

Section: Aço Pré-pintado E Suas Aplicaçõesunclassified

Proposta de redução de consumo de tintas em uma empresa produtora de aço pré-pintado

Showalter¹,

Souza²,

Zattar³

2019

GEPROS

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O aço pré-pintado é uma solução eficiente para indústrias de construção civil e linha branca, substituindo o aço comum pintado por métodos pouco eficientes. Em uma empresa produtora de aço pré-pintado, é importante controlar o consumo de tinta aplicada sobre o produto para que suas características técnicas sejam atendidas e custos com matéria prima controlados. O presente artigo utilizou o Método de Análise e Solução de Problemas (MASP) para realizar experimentos, analisar resultados e criar ferramentas que capacitem uma empresa produtora de aço pré-pintado a reduzir o consumo de tintas. Os objetos de estudo foram o processo de aplicação de tinta em uma linha de aço pré-pintado e as variáveis que influenciam o consumo de tintas e o processo de medição de espessura de camada. Para tal, diferentes métodos de medição foram avaliados para determinar o método mais adequado. Métricas de controle de camada e consumo de tintas foram criadas e comparadas em gráficos que possibilitaram identificar anomalias técnicas e de medição de camada. O estudo gerou uma redução no consumo de tintas de mais de R$ 1 milhão em oito meses de implementação das ações na empresa estudada. Palavras-chave: Consumo de tintas. Medição de camada de tinta. Aço prépintado. Pre-painted steel is a solution for the civil construction and the home appliance industries, replacing the standard steel that, after mechanical conforming, is painted by less efficient methods. In a pre-painted steel company, it is very important for quality specifications and coating consumption and that the volume of coating applied is controlled. This paper utilized the QC Story method to design experiments, analyze results, and create tools for a pre-painted steel producer to reduce coating consumption. The main points studied were the coating process in a coil coating line, variables that influence the coatings usage, and measurement system of dry film thickness. Different methodologies for DFT (dry film thickness) measurement were evaluated to determine the most appropriate method and reduce coating usage through coating process control. Metrics for controlling film thickness and coatings consumption were created and compared in charts that identify technical irregularities. The study promoted a reduction in coating consumption, saving over US$ 350,000 in eight months of actions that were implemented in the studied company.

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“…Compared with inorganic coatings, organic ones have satisfactory toughness, adhesion, etc. Nevertheless, most organic coatings are solvent systems which are environmentally unfriendly after evaporation, non‐heat‐resistant, and hardly film‐forming, thus limiting practical applications …”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, most organic coatings are solvent systems which are environmentally unfriendly after evaporation, non-heat-resistant, and hardly filmforming, thus limiting practical applications. [10][11][12][13] To solve the problems regarding organic and inorganic coatings, it is important to develop new coating substrate materials. Guo 14 synthesized a water-based rust converter (2-hydroxypropyl 3, 4, 5trihydroxybenzoate), which exhibits excellent rust removal and anticorrosion performance without other kinds of solvent.…”

mentioning

confidence: 99%

Curing mechanism, heat resistance, and anticorrosion properties of a furan/methyl phenyl silicone coating

Zhang

Shi

et al. 2018

Polymers for Advanced Techs

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A coating composed by methyl phenyl silicone resin (PSi) and furan resin (FR) was prepared, and its curing mechanism, heat resistance, and anticorrosion properties were investigated by Fourier transform infrared spectroscopy, thermogravimetric analysis, electrochemical test, and chemical resistance test. Aldol condensation reaction between FR and PSi occurred at below 200°C, and PSi underwent self‐multidehydrogenation at above 200°C. These curing reactions gave excellent thermal stability and anticorrosion properties. Compared with pure PSi, the blended containing lower than 20 wt% FR had better thermal properties, manifested as over 390°C of 5 wt% weight loss temperature and over 40% of char yield at 800°C. The adhesion property of cured blended system on the metal surface reached the first level which exceeded that of pure PSi coating (the third level). Furthermore, the corrosion resistances of coating in acid, alkali, and salt environments were all improved compared with those of monomeric polymer coating. The impedance of blended coating in 3.5% NaCl solution decreased with increasing FR content, which was 1.8 × 106 Ω cm2 when the FR content was 40%, being higher than that of pure PSi coating (7.12 × 105 Ω cm2). This was mainly due to the formation of a cross‐linked network structure based on Si―O―C bond and the enhanced adhesion of cured blended coating. In addition, the surface roughness of cured blended coating was below 2.0 μm, which may have a positive effect on drag reduction in real applications.

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Preparation of waterborne phosphated acrylate–epoxy hybrid dispersions and their application as coil coating primer

Cited by 31 publications

References 11 publications

Preparation and properties of epoxy‐modified tung oil waterborne insulation varnish

Preparation and properties of epoxy‐modified tung oil waterborne insulation varnish

Proposta de redução de consumo de tintas em uma empresa produtora de aço pré-pintado

Curing mechanism, heat resistance, and anticorrosion properties of a furan/methyl phenyl silicone coating

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