{"title":"柠檬酸环氧化蚕蛹油及环保型软钢防腐油涂层的优化分析","authors":"Dhanavel Nandhini, Meenakshi Halada Nandakrishnan, Ramarao Viswanatha","doi":"10.1002/aocs.12940","DOIUrl":null,"url":null,"abstract":"<p>Silkworm pupae oil (SPO) with high amount of unsaturation due to rich in oleic acid and α-linolenic acids has been chosen for this investigation. Epoxidized silkworm pupae oil (ESPO) was produced by in situ generated peroxycitric with citric acid (CA) and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). Literature covering the topic of epoxidation, including the catalytic aspect, is vast. No review articles have been written on the synthesis of epoxides from SPO without the catalyst to the best of our knowledge. Here, CA itself behaves as an oxygen carrier without any catalyst and H<sub>2</sub>O<sub>2</sub> as an oxygen donor, which favors the epoxidation reaction. The epoxidation process was optimized by factors like temperature, time, and CA ratio. Fourier transform infrared (FTIR) analysis confirmed the presence of epoxy groups and the absence of (<span></span>CC<span></span>) bonds in ESPO. Optimal conditions for epoxidation were 70 °C, 0.75 mol/L CA, and 7 h, resulting in 92.1% double bond conversion (DBC) and 84.7% relative oxirane conversion (RC). The polymerized ESPO coated on mild steel (MS) exhibited enhanced corrosion resistance, with inhibition efficiency rising from 83.86% to 99.42% due to effective pore prevention and ion modification during curing.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 5","pages":"941-956"},"PeriodicalIF":1.9000,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimization analysis of epoxidation of silkworm pupae oil with citric acid and eco-friendly oil coating on mild steel for corrosion protection\",\"authors\":\"Dhanavel Nandhini, Meenakshi Halada Nandakrishnan, Ramarao Viswanatha\",\"doi\":\"10.1002/aocs.12940\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Silkworm pupae oil (SPO) with high amount of unsaturation due to rich in oleic acid and α-linolenic acids has been chosen for this investigation. Epoxidized silkworm pupae oil (ESPO) was produced by in situ generated peroxycitric with citric acid (CA) and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). Literature covering the topic of epoxidation, including the catalytic aspect, is vast. No review articles have been written on the synthesis of epoxides from SPO without the catalyst to the best of our knowledge. Here, CA itself behaves as an oxygen carrier without any catalyst and H<sub>2</sub>O<sub>2</sub> as an oxygen donor, which favors the epoxidation reaction. The epoxidation process was optimized by factors like temperature, time, and CA ratio. Fourier transform infrared (FTIR) analysis confirmed the presence of epoxy groups and the absence of (<span></span>CC<span></span>) bonds in ESPO. Optimal conditions for epoxidation were 70 °C, 0.75 mol/L CA, and 7 h, resulting in 92.1% double bond conversion (DBC) and 84.7% relative oxirane conversion (RC). The polymerized ESPO coated on mild steel (MS) exhibited enhanced corrosion resistance, with inhibition efficiency rising from 83.86% to 99.42% due to effective pore prevention and ion modification during curing.</p>\",\"PeriodicalId\":17182,\"journal\":{\"name\":\"Journal of the American Oil Chemists Society\",\"volume\":\"102 5\",\"pages\":\"941-956\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2025-02-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the American Oil Chemists Society\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/aocs.12940\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Oil Chemists Society","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/aocs.12940","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Optimization analysis of epoxidation of silkworm pupae oil with citric acid and eco-friendly oil coating on mild steel for corrosion protection
Silkworm pupae oil (SPO) with high amount of unsaturation due to rich in oleic acid and α-linolenic acids has been chosen for this investigation. Epoxidized silkworm pupae oil (ESPO) was produced by in situ generated peroxycitric with citric acid (CA) and hydrogen peroxide (H2O2). Literature covering the topic of epoxidation, including the catalytic aspect, is vast. No review articles have been written on the synthesis of epoxides from SPO without the catalyst to the best of our knowledge. Here, CA itself behaves as an oxygen carrier without any catalyst and H2O2 as an oxygen donor, which favors the epoxidation reaction. The epoxidation process was optimized by factors like temperature, time, and CA ratio. Fourier transform infrared (FTIR) analysis confirmed the presence of epoxy groups and the absence of (CC) bonds in ESPO. Optimal conditions for epoxidation were 70 °C, 0.75 mol/L CA, and 7 h, resulting in 92.1% double bond conversion (DBC) and 84.7% relative oxirane conversion (RC). The polymerized ESPO coated on mild steel (MS) exhibited enhanced corrosion resistance, with inhibition efficiency rising from 83.86% to 99.42% due to effective pore prevention and ion modification during curing.
期刊介绍：
The Journal of the American Oil Chemists’ Society (JAOCS) is an international peer-reviewed journal that publishes significant original scientific research and technological advances on fats, oils, oilseed proteins, and related materials through original research articles, invited reviews, short communications, and letters to the editor. We seek to publish reports that will significantly advance scientific understanding through hypothesis driven research, innovations, and important new information pertaining to analysis, properties, processing, products, and applications of these food and industrial resources. Breakthroughs in food science and technology, biotechnology (including genomics, biomechanisms, biocatalysis and bioprocessing), and industrial products and applications are particularly appropriate.
JAOCS also considers reports on the lipid composition of new, unique, and traditional sources of lipids that definitively address a research hypothesis and advances scientific understanding. However, the genus and species of the source must be verified by appropriate means of classification. In addition, the GPS location of the harvested materials and seed or vegetative samples should be deposited in an accredited germplasm repository. Compositional data suitable for Original Research Articles must embody replicated estimate of tissue constituents, such as oil, protein, carbohydrate, fatty acid, phospholipid, tocopherol, sterol, and carotenoid compositions. Other components unique to the specific plant or animal source may be reported. Furthermore, lipid composition papers should incorporate elements of yeartoyear, environmental, and/ or cultivar variations through use of appropriate statistical analyses.
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