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Synthesis and characterization of polypyrrole-fly-ash-adenosine composite reinforced epoxy coating for anticorrosive applications
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2023-09-08 , DOI: 10.1002/app.54685
Baburao M. Kharat 1 , Siddhant A. Vyavahare 1 , Yogita Shirapure 1 , Jainabh Kerosenewala 1 , Pradnya Desai 1 , Aarti P. More 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2023-09-08 , DOI: 10.1002/app.54685
Baburao M. Kharat 1 , Siddhant A. Vyavahare 1 , Yogita Shirapure 1 , Jainabh Kerosenewala 1 , Pradnya Desai 1 , Aarti P. More 1
Affiliation
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Polypyrrole (PPy), PPy-fly ash, and PPy-fly ash-adenosine composite in an epoxy resin system were studied for potential applications in the field of corrosion protection. The composite was prepared using a simple and cost-effective in-situ chemical oxidative method by interfacial polymerization technique. The synthesized composites were added into the epoxy coating matrix. All the studied formulations show excellent adhesion (5B) and good chemical resistance and passed flexibility test without any crack formation. Pencil hardness increases from 2H to 4H while scratch resistance increases from 1.5 to 2 kg for both PPy-Ash 3wt% and PPy-Ash-adenosine 3 wt% as compared to plain epoxy. The contact angle observed to be 80.4° for plain epoxy and with PPy-Ash-adenosine 5 wt% it is 98.75°. Anticorrosive properties of the coatings were evaluated using electrochemical impedance spectroscopy bode plot analysis and salt spray tests. There was an increase in impedance from 2.5 to 4.25 ohm, as the addition of PPy-Ash-adenosine composite. The results indicated that the composite coatings exhibited significantly higher corrosion protection properties compared to the pure epoxy coating. The enhanced corrosion protection performance of the composite coatings was attributed to the synergistic effect of PPy, fly ash, and adenosine.
中文翻译:
聚吡咯-粉煤灰-腺苷复合增强环氧防腐涂料的合成与表征
研究了环氧树脂体系中的聚吡咯(PPy)、PPy-粉煤灰和PPy-粉煤灰-腺苷复合材料在腐蚀防护领域的潜在应用。该复合材料是通过界面聚合技术采用简单且经济有效的原位化学氧化方法制备的。将合成的复合材料添加到环氧涂层基体中。所有研究的配方均表现出优异的附着力(5B)和良好的耐化学性,并通过了柔韧性测试,没有形成任何裂纹。与普通环氧树脂相比,3wt% PPy-Ash 和 3 wt% PPy-Ash-腺苷的铅笔硬度从 2H 增加到 4H,耐刮擦性从 1.5 增加到 2 kg。普通环氧树脂的接触角为 80.4°,PPy-Ash-腺苷 5 wt% 的接触角为 98.75°。采用电化学阻抗谱波特图分析和盐雾试验评价涂层的防腐性能。随着PPy-Ash-腺苷复合物的添加,阻抗从2.5欧姆增加到4.25欧姆。结果表明,与纯环氧涂层相比,复合涂层表现出明显更高的腐蚀防护性能。复合涂层防腐性能的增强归因于PPy、粉煤灰和腺苷的协同作用。
更新日期:2023-09-08
中文翻译:
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聚吡咯-粉煤灰-腺苷复合增强环氧防腐涂料的合成与表征
研究了环氧树脂体系中的聚吡咯(PPy)、PPy-粉煤灰和PPy-粉煤灰-腺苷复合材料在腐蚀防护领域的潜在应用。该复合材料是通过界面聚合技术采用简单且经济有效的原位化学氧化方法制备的。将合成的复合材料添加到环氧涂层基体中。所有研究的配方均表现出优异的附着力(5B)和良好的耐化学性,并通过了柔韧性测试,没有形成任何裂纹。与普通环氧树脂相比,3wt% PPy-Ash 和 3 wt% PPy-Ash-腺苷的铅笔硬度从 2H 增加到 4H,耐刮擦性从 1.5 增加到 2 kg。普通环氧树脂的接触角为 80.4°,PPy-Ash-腺苷 5 wt% 的接触角为 98.75°。采用电化学阻抗谱波特图分析和盐雾试验评价涂层的防腐性能。随着PPy-Ash-腺苷复合物的添加,阻抗从2.5欧姆增加到4.25欧姆。结果表明,与纯环氧涂层相比,复合涂层表现出明显更高的腐蚀防护性能。复合涂层防腐性能的增强归因于PPy、粉煤灰和腺苷的协同作用。