Study on Properties of Recyclable Thermosetting Epoxy Resin and Its Dlass Fiber Reinforced Composites
To explore the distinctions between recyclable epoxy resin R and traditional epoxy resin employed in wind turbine blades,a vacuum infusion method was employed to fabricate glass fiber-reinforced recyclable thermosetting composites.A comprehensive comparison and analysis of the material properties of the resins and the mechanical properties of their respective composites were conducted.The findings revealed that the viscosity of recyclable resin R closely resembled that of the conventional resin,while exhibiting a more extended pot life,rendering it suitable for the vacuum infusion process in wind turbine blades.The onset time of the exothermic peak was slightly earlier than that of the conventional resin,which proved advantageous in reducing production time.Both the bulk and mechanical properties of the composite generally paralleled those of the conventional resin.The favorable interfacial properties between recyclable resin R and conventional resin suggested the potential for manufacturing large composite parts by pre-preparing the components and subsequently executing the overall infusion process.
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