College of Materials Science and Engineering, Beijing University of Chemical and Technology , Beijing 100029, China.
SINOPEC Beijing Research Institute of Chemical Industry , Beijing 100013, China.
Nano Lett. 2016 Oct 12;16(10):6511-6515. doi: 10.1021/acs.nanolett.6b03108. Epub 2016 Sep 30.
A new method to prepare graphene-based fibers with ultrahigh tensile strength, conductivity, and increased elongation is reported. It includes wet-spinning the mixture of GO aqueous dispersion with phenolic resin solution in a newly developed coagulation bath, followed by annealing. The introduced phenolic carbon increased densification of graphene fibers through reducing defects and increased interfacial interaction among graphene sheets by forming new C-C bonds, thus resulting in the increasing of stiffness, toughness, and conductivity simultaneously.
本文报道了一种制备具有超高拉伸强度、导电性和伸长率的石墨烯基纤维的新方法。该方法包括在新开发的凝固浴中湿法纺丝 GO 水分散体与酚醛树脂溶液的混合物，然后进行退火。引入的酚醛碳通过减少缺陷和通过形成新的 C-C 键增加石墨烯片之间的界面相互作用来增加石墨烯纤维的致密化程度，从而同时提高了刚度、韧性和导电性。
