Biodegradable Epoxy Thermosets Prepared by Mixing Diglycidyl Ether of Bisphenol A and Epoxidized Soybean Oil and Their Electrical and Mechanical Properties
{"title":"Biodegradable Epoxy Thermosets Prepared by Mixing Diglycidyl Ether of Bisphenol A and Epoxidized Soybean Oil and Their Electrical and Mechanical Properties","authors":"Jae-Jun Park, Sangmin Lee","doi":"10.1002/app.56739","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>To develop a biodegradable epoxy resin matrix for high-voltage insulating composites, petroleum-based diglycidyl ether of bisphenol A (DGEBA) epoxy and epoxidized soybean oil (ESBO) were mixed, and their biodegradability and electrical and mechanical properties were studied. DGEBA/ESBO epoxy mixtures were in the ratios of 100/0, 90/10, 80/20, 70/30, 60/40, and 50/50, respectively. In the soil burial test, as ESBO content increased, DGEBA/ESBO thermosets disintegrated into smaller pieces by 4–6 months, while the DGEBA thermoset without any ESBO preserved its geometry throughout the degradation study for 8 months. Crosslink density was studied by a solvent swelling method and the Flory–Rehner equation, and glass transition temperature, Tg, was measured by a differential scanning calorimetry, and it was found that crosslink density and Tg were highest in the DGEBA/ESBO (80/20) thermoset. All mechanical strengths and electrical insulation breakdown strengths were obtained in the DGEBA/ESBO (80/20) thermoset, which could be used as a biodegradable matrix for high-voltage insulating composites.</p>\n </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 15","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/app.56739","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
To develop a biodegradable epoxy resin matrix for high-voltage insulating composites, petroleum-based diglycidyl ether of bisphenol A (DGEBA) epoxy and epoxidized soybean oil (ESBO) were mixed, and their biodegradability and electrical and mechanical properties were studied. DGEBA/ESBO epoxy mixtures were in the ratios of 100/0, 90/10, 80/20, 70/30, 60/40, and 50/50, respectively. In the soil burial test, as ESBO content increased, DGEBA/ESBO thermosets disintegrated into smaller pieces by 4–6 months, while the DGEBA thermoset without any ESBO preserved its geometry throughout the degradation study for 8 months. Crosslink density was studied by a solvent swelling method and the Flory–Rehner equation, and glass transition temperature, Tg, was measured by a differential scanning calorimetry, and it was found that crosslink density and Tg were highest in the DGEBA/ESBO (80/20) thermoset. All mechanical strengths and electrical insulation breakdown strengths were obtained in the DGEBA/ESBO (80/20) thermoset, which could be used as a biodegradable matrix for high-voltage insulating composites.
期刊介绍:
The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.