材料科学与工程学报2025，Vol.43Issue(2)：210-216,7.DOI:10.14136/j.cnki.issn1673-2812.2025.02.006
植物油改性脂环族环氧树脂绝缘复合材料
Cycloaliphatic Epoxy Resin Insulating Composites Modified by Plant Oil
摘要
Abstract
The cycloaliphatic epoxy resin(CEP)has excellent electric insulation,mechanical strength and weather resistance.If its toughness and hydrophobicity can be improved,it is expected to replace silicone rubber composite insulators,to solve the problem of sand erosion,bird pecking and trampling damage,so as to ensure the stable operation of transmission lines.In this work,a cycloaliphatic epoxy resin nanocomposite(SiO2/ESO-CE)modified by toughening of epoxidized soybean oil(ESO)was successfully prepared using bio-based ESO as a modifier and doped with silica nano-filler(SiO2).The chemical structure,mechanical properties,heat resistance,hydrophobicity and electrical insulation properties of the composites were systematically characterized and analyzed.The results show that the SiO2/ESO-CE composite has good mechanical properties,hydrophobicity and electrical insulation properties.When ESO is added at 20 phr,the synergistic effect between ESO and SiO2 is optimized,with the tensile strength and water contact angle reaching 67.37 MPa and 92.66°,an increase of 32.42％and 22.29％,respectively.At the same time,the AC breakdown strength of the composites reached 30.91 kV/mm,an increase of 59.08％compared to pure CE,and the volume resistivities were all higher than 1014 Ω·cm.关键词
脂环族环氧树脂/环氧大豆油/二氧化硅/电绝缘性/憎水性Key words
Cycloaliphatic epoxy resin/Epoxidized soybean oil/Silica/Electric insulation/Hydrophobicity引用本文复制引用
陈浩,田正波,张阳,万帅,孙其勋,吴仲岿..植物油改性脂环族环氧树脂绝缘复合材料[J].材料科学与工程学报,2025,43(2):210-216,7.基金项目
湖北省重点研发计划项目(科技创新助企纾困类)(2022BAD028),武汉理工大学襄阳技术转移中心科技产业化资金项目(WXCJ-20220010) （科技创新助企纾困类）
