Design for Reprocessable Bismaleimide Thermosetting Resin System
발표자
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초록
내용
Bismaleimide (BMI) resins are well-known as high-performance thermosetting systems possessing excellent heat resistance, and other profound physical properties. Due to these advantages, this type of thermosetting material is widely employed in aerospace and astronautics, but it also becomes a significant source of unfriendly environmental waste. In order to address this issue, our research focuses on designing a remoldable BMI system by employing a BMI monomer, which possesses functional groups forming a covalent adaptive network that allows the resin to be reprocessed. After confirming the structure using various spectroscopic techniques, the BMI monomer is coupled with aromatic diamine via an additional aza-Michael reaction to obtain the final cured resin. Subsequently, this thermosetting material is characterized to demonstrate its thermal and physical properties, besides, the reprocessing behaviour and mechanism are discussed in detail.