期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 39, 页码 36090-36099出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b11991
关键词
paper; vitrimer; strength; shape-memory; self-healing; recycling
资金
- National Natural Science Foundation of China [21774071]
- Natural Science Foundation of Shaanxi University of Science and Technology [2017QNBJ-07]
- Youth Hundred-Talent Program of Shaanxi Province [SXBR9227]
- National High-Level Foreign Expert Project [GDT20186100425]
- Biomass Chemistry and Materials Academician Workstation Project in SUST [134090002]
Vitrimer, the third category of polymer materials, combines the properties of traditional thermosets and thermoplastics and has gained much interest from industry since the first report in 2011. Currently, many researchers focus on the exploration of new chemistry for novel vitrimer synthesis but pay less attention to the fabrication of vitrimer composites based on known vitrimer systems. The latter can not only largely decrease the cost of vitrimers but also provide a facile way to increase the variety of vitrimer-based materials and extend the applications of vitrimers in different fields. In this study, we developed a new class of vitrimer composite using polycarbonate as a matrix and natural cellulose paper as the reinforcing framework for the first time. The resultant materials possess exceptional mechanical properties and great thermal/chemical stability, simultaneously exhibiting a series of smart properties, such as shape-memory, reshaping, self-healing, and reprocessing. Noteworthily, the two main components of the resultant materials, polycarbonate and natural cellulose, can be easily recycled under mild conditions; thus, these new vitrimer composites qualify as novel green and sustainable materials.
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