Dry Spin Graphene Oxide Fibers: Mechanical/Electrical Properties and Microstructure Evolution.

ABSTRACT: Dry-spinning method is extensively employed in fiber industry, comparing to the counter-part of wet-spinning process, it has advantages of environmentally friendly, high yield rate and no need for purification. Here, we report the synthesis of graphene oxide (GO) fibers via dry spinning GO inks with extremely high concentrations. The proper rheology properties of such GO inks allow us to dry spin GO fiber directly. Various dry spinning conditions are investigated, and the relationship between mechanical performance and micro-structure of the obtained GO fiber are established. We found that the existence of larger GO liquid crystal domains does not necessarily result to higher mechanical properties, and it is because those large GO liquid crystal domains evolve into thick GO films during dr

SUBMITTER: Feng L 

PROVIDER: S-EPMC6050277 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature