Biodegradable Epoxy Thermosets Prepared by Mixing Diglycidyl Ether of Bisphenol A and Epoxidized Soybean Oil and Their Electrical and Mechanical Properties

IF 2.7 3区 化学 Q2 POLYMER SCIENCE
Jae-Jun Park, Sangmin Lee
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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.

Abstract Image

双酚 A 二缩水甘油醚与环氧化大豆油混合制备的可生物降解环氧热固性塑料及其电气和机械性能
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来源期刊
Journal of Applied Polymer Science
Journal of Applied Polymer Science 化学-高分子科学
CiteScore
5.70
自引率
10.00%
发文量
1280
审稿时长
2.7 months
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.
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