Biodegradable Epoxy Thermosets Prepared by Mixing Diglycidyl Ether of Bisphenol A and Epoxidized Soybean Oil and Their Electrical and Mechanical Properties
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2025
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| _version_ | 1867009002301292544 |
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| author | Jae‐Jun Park Sangmin Lee |
| author_facet | Jae‐Jun Park Sangmin Lee Jae‐Jun Park Sangmin Lee |
| collection | Wiley Open Access |
| contents | Biodegradable Epoxy Thermosets Prepared by Mixing Diglycidyl Ether of Bisphenol A and Epoxidized Soybean Oil and Their Electrical and Mechanical Properties Jae‐Jun Park Sangmin Lee Journal of Applied Polymer Science ABSTRACTTo 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. 10.1002/app.56739 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/app.56739 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_app_56739 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Biodegradable Epoxy Thermosets Prepared by Mixing Diglycidyl Ether of Bisphenol A and Epoxidized Soybean Oil and Their Electrical and Mechanical Properties Jae‐Jun Park Sangmin Lee Journal of Applied Polymer Science Biodegradable Epoxy Thermosets Prepared by Mixing Diglycidyl Ether of Bisphenol A and Epoxidized Soybean Oil and Their Electrical and Mechanical Properties Jae‐Jun Park Sangmin Lee Journal of Applied Polymer Science ABSTRACTTo 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. 10.1002/app.56739 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Biodegradable Epoxy Thermosets Prepared by Mixing Diglycidyl Ether of Bisphenol A and Epoxidized Soybean Oil and Their Electrical and Mechanical Properties |
| topic | Journal of Applied Polymer Science |
| url | https://onlinelibrary.wiley.com/doi/10.1002/app.56739 |