Summary
Against the backdrop of reducing reliance on petroleum resources in epoxy resin production and achieving enhanced performance, the development of thermosetting epoxy resins that combine sustainability with excellent overall properties has emerged as a key research direction.In this study, a magnolol-based epoxy monomer (DGEM) was synthesized using biomass-derived magnolol as the primary raw material and cured with 4,4′diaminodiphenylmethane (DDM). DGEM was then blended with bisphenol A epoxy resin
Read more Read less(E51), and the resulting blends were cured and systematically evaluated in terms of thermal stability, mechanical properties, and dielectric performance.The results indicate that, at a
DGEM/E51 ratio of 50:50, the flexural strength and tensile strength increased by 55.2% and 20.7%, respectively, compared with those of pure E51 resin. As the DGEM content further increased, the dielectric properties of the blends improved significantly. At a ratio of 60:40, the dielectric constant and dielectric loss at power frequency (50 Hz) decreased by 18.3% and 44.8%, respectively.DGEM exhibits a dual modification effect—simultaneously enhancing toughness and reducing dielectric loss—in the E51 system, thereby providing a reliable experimental basis and theoretical support for its potential application in electrical insulation materials.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | D1_11569_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | China, People's Republic of |
| Study committees | |
| File size | 2 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
ZHANG Pengfei; HUANG Zhengyong; ZHAO Chen; XU Weiwei
Keywords
Magnolol epoxy; Mixed resin; Enhance toughness; Reduce dielectric loss
