Switchable Liquid Crystal Composite Windows Using Bacterial Cellulose (BC) Mat Substrates

Performance properties were investigated for transparency switching devices fabricated with nematic LC filled bacterial cellulose (BC) mats as electro-optical components. Biobased BC is a nanoporous bicontinuous network of cellulose fibers produced by bacteria and cultured to form mats of desired thickness. Devices made from BC mats with thicknesses of 6, 20, and 40 μm were compared. Furthermore, the electro-optical response of the devices provides insight into the ordering of the nematic LC within the bicontinuous BC matrix.

[1]  R. Gross,et al.  Grown Ultrathin Bacterial Cellulose Mats for Optical Applications. , 2018, Biomacromolecules.

[2]  G. Cui,et al.  Biomass-derived materials for electrochemical energy storages , 2015 .

[3]  Huijuan Liu,et al.  Ionic liquid assisted electrospun cellulose acetate fibers for aqueous removal of triclosan. , 2015, Langmuir : the ACS journal of surfaces and colloids.

[4]  Alain Dufresne,et al.  Cellulose nanocrystals and related nanocomposites: Review of some properties and challenges , 2014 .

[5]  Gregory P. Crawford,et al.  Liquid crystals in complex geometries : formed by polymer and porous networks , 2014 .

[6]  Y. Davoudpour,et al.  Production and modification of nanofibrillated cellulose using various mechanical processes: a review. , 2014, Carbohydrate polymers.

[7]  Y. Huang,et al.  Recent advances in bacterial cellulose , 2014, Cellulose.

[8]  K. O’Connor,et al.  Current progress on bio-based polymers and their future trends , 2013, Progress in Biomaterials.

[9]  Chuanjian Zhang,et al.  Renewable and superior thermal-resistant cellulose-based composite nonwoven as lithium-ion battery separator. , 2013, ACS Applied Materials and Interfaces.

[10]  David Plackett,et al.  Microfibrillated cellulose and new nanocomposite materials: a review , 2010 .

[11]  Arild Gustavsen,et al.  Properties, Requirements and Possibilities of Smart Windows for Dynamic Daylight and Solar Energy Control in Buildings: A State-of-the-Art Review , 2010 .

[12]  Dieter Klemm,et al.  Alteration of bacterial nanocellulose structure by in situ modification using polyethylene glycol and carbohydrate additives , 2009 .

[13]  Weihua Tang,et al.  The influence of fermentation conditions and post-treatment methods on porosity of bacterial cellulose membrane , 2009 .

[14]  L. R. Evangelista,et al.  Adsorption phenomena and anchoring energy in nematic liquid crystals , 2005 .

[15]  S. Faetti,et al.  Elastic, dielectric and optical constants of 4'-pentyl-4-cyanobiphenyl , 2001 .

[16]  O. Lavrentovich,et al.  Scientific Note: Nematic Structures in Composite Materials , 1995 .