- 曾建兵 研究員
- 西南大學(xué)
- 網(wǎng)址: jbzeng.polymer.cn 訪問量:572444
- 西南大學(xué)曾建兵課題組
- 四川大學(xué)陳思翀教授
- 西南大學(xué)王明教授
- 中國聚合物網(wǎng)
- 中國流變網(wǎng)
- 中國化學(xué)儀器網(wǎng)
- 化學(xué)化工論壇
- 通信地址:重慶市北碚區(qū)天生路2號(hào)
- 郵編:400715
- 電話:18580254939
- 傳真:
- Email:[email protected]
摘要:A novel biobased epoxy vitrimer (Gte-VA) with desirable mechanical properties was synthesized from glycerol triglycidyl ether (Gte) and an imine-containing hardener (VA), which was also a biobased compound from vanillin and 4-aminophenol. The biobased epoxy vitrimer shows Young’s modulus of 1.6 GPa and tensile strength of 62 MPa, which is close to the value of amine-cured bisphenol A diglycidyl ether. In addition, it shows excellent reprocessability, recyclability, and UV shielding performance and can be used as a matrix to prepare carbon fiber (CF)-reinforced composites. Based on the amine–imine reversible exchange reaction of the imine bonds, the CF fabric could be recycled without damage from the composite, after degrading the resin in an amine solution. Especially, after recombining the degraded resin with recycled carbon fiber fabric, a regenerated carbon fiber reinforced composite with similar mechanical properties to the original composite can be obtained, achieving full recycling of the carbon fiber reinforced composite. This work will open a door to the development of simple procedures of high-performance biobased epoxy vitrimer and its application in fully recycled carbon fiber reinforced composite.
全文鏈接:https://pubs.acs.org/doi/10.1021/acssuschemeng.1c00231