Milestone of Insulating Resin

Conventional petroleum-based insulating resins face significant challenges including high pollution, high energy consumption, and difficult recyclability, severely hindering the advancement of the “dual carbon” goals. In response, this chapter focuses on the development of next-generation electrical insulating resins. We critically examine three cutting-edge research frontiers: Utilizing renewable feedstocks such as vegetable oils, lignin, vanillin, and furanic acids to significantly reduce carbon footprint. Incorporating dynamic covalent bonds to endow materials with intelligent damage repair capabilities, thereby extending service life. Constructing reversible networks based on dynamic bonds to enable closed-loop mechanical or solvent-based recycling, or developing catalytic degradation pathways. These synergistic strategies collectively propel insulating materials toward greener, low-carbon, sustainable, and intelligent development.