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Recently, the research group of Professor Lu Yang of Hefei University of Technology and the research team of Professor Yu Shuhong of the University of Science and Technology of China adopted the two-step strategy of "deassembly-bionic assembly", using cheap natural mica powder as raw material, successfully realized the large-scale preparation of high-quality mica nanosheets, and assembled into a high-performance transparent and flexible imitation shell structure mica composite film
.
Researchers prepared single-layer or few-layer ultra-thin mica nanosheets by liquid phase exfoliation, and at the same time, using spraying technology, the ultra-thin mica nanosheets and chitosan mixed solution were successfully assembled into a mica composite film with a "brick-mud" layered structure at the micro-nano scale, and the composition and structure were optimized
.
The results show that when the mica content reaches 60%, the new composite film shows excellent mechanical strength, good visible light transmittance, and unique UV shielding
.
This achievement can be widely promoted in the research and development of polymer composite materials and transparent ultraviolet shielding coatings, and has broad
application prospects in the fields of flexible and transparent electronic devices.
