Recent progress of liquid crystal elastomer fibres in smart response field
Liquid crystal elastomers(LCEs)are a kind of polymer network containing slightly cross-linked liquid crystal units,which combine the soft elasticity of polymer networks with the anisotropy of liquid crystal substrates.LCEs can realize non-contact motion under the stimulation of external environment via programmed molecular orientation,which exhibit excellent elasticity and drive performances.Liquid crystal elastomer fibres,a common form of LCEs,exhibit broad application potential in many fields due to their sensitive response to various stimuli resulting from the high orientation of liquid crystal substrates within the fiber,good programmability and excellent mechanical strength.Herein,the main preparation methods and driving response mechanism of liquid crystal elastomer fibers were firstly reviewed.The liquid crystal elastomer fiber systems with different driving modes were then analyzed,with detailed introduction on the photoresponsive liquid crystal elastomers fibres.In the end,the latest research progress in the fields of flexible sensing,self-oscillatory system,bionics,artificial muscle,and soft robot of liquid crystal elastomer fibres were briefly discussed,and its development directions were also prospected.
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NSTL
万方数据
维普
