Method of fabricating patterned cellulose nanocrystal composite nanofibers and nano thin films and their applications
AssigneeNational Tsinghua University
InventorsWei-Chih Wang, Yen-Tse Cheng
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Abstract
The present invention provides a method for fabricating patterned cellulose nanocrystal (CNC) composite nanofibers and thin films for optical and electromagnetic sensor and actuator application, comprising the following steps of: selecting materials for fabricating patterned cellulose nanocrystal (CNC) composite nanofibers; and fabricating patterned CNCs composite nanofibers by incorporating secondary phases either during electrospinning or post-processing, wherein the secondary phases may include dielectrics, electrically or magnetically activated nanoparticles or polymers and biological cells mechanically reinforced by CNCs.
Claims20
A method for fabricating patterned cellulose nanocrystal (CNC) nanofibers, comprising the steps of:
- selecting CNC materials for fabricating the patterned CNC nanofibers;
- and
- fabricating the patterned CNC nanofibers by using an electrospinning process in a multi solution electrospinning system, the fabricating steps comprising:
- dispensing at least two CNC solutions comprising the CNC materials using a multi solution feed system in the multi solution electrospinning system;
- collecting the dispensed CNC solutions with a grounded rotating collector to fabricate the patterned CNC nanofibers;
- and providing DC power from a DC power supply.
A method for fabricating patterned cellulose nanocrystal (CNC) nanofibers, comprising the steps of:
- creating a CNC preform of a concentric layer composite;
- reheating the CNC preform to a glass transition temperature;
- and
- stretching the reheated CNC preform into a strand of patterned CNC nanofibers by a fiber drawing method using an electrospinning process in a fiber extruder electrospinning system.
Dependencies are inferred from the claim text.