Valorization of Biomass Pulping Waste as Effective Additive for Enhancing the Performance of Films Based on Liquid Crystal Hydroxypropyl-Cellulose Nanocomposites

2021 ◽  
Author(s):  
Altaf H. Basta ◽  
Vivian F. Lotfy ◽  
Aya M. Salem
Keyword(s):  
Liquid Crystal ◽  
Hydroxypropyl Cellulose ◽  
Cellulose Nanocomposites ◽  
Effective Additive

scholarly journals Cellulose Ether-Based Liquid Crystal Materials: Review Article

2021 ◽  
Vol 10 ◽  
pp. 69-83
Author(s):  
Altaf H. Basta ◽  
◽  
Vivian F. Lotfy ◽  
Jehane A. Micky ◽  
Aya M. Salem
Keyword(s):  
Liquid Crystal ◽  
Synergistic Effect ◽  
Ethyl Cellulose ◽  
Hydroxypropyl Cellulose ◽  
Review Article ◽  
Cellulose Ether ◽  
Material Chemistry ◽  
Cellulose Nanocomposites ◽  
Liquid Crystal Materials

The development of liquid crystal materials via nanotechnology has become an interesting subject of research in optical material chemistry. One of the significant nanomaterials is cellulose-based nanoparticles. In this review article, we highlighted the classification of liquid crystal materials (LCs), and types of cellulose-NPs and their characterization as LCs materials. Finally, we present our promising data on the synergistic effect of cellulose-NPs on liquid crystal behavior of ethyl cellulose- and hydroxypropyl cellulose- nanocomposites.

scholarly journals Valorization of Biomass Pulping Waste As Effective Additive For Enhancing The Performance of Liquid Crystal Hydroxypropyl Cellulose Nanocomposite Film

2021 ◽  
Author(s):  
Altaf H. Basta ◽  
Vivian F. Lotfy ◽  
Aya Salem
Keyword(s):  
Liquid Crystal ◽  
Nanocomposite Film ◽  
Film Formation ◽  
Polarized Light ◽  
Carbon Oxide ◽  
Carbon Quantum Dots ◽  
Hydroxypropyl Cellulose ◽  
Mechanical Tests ◽  
Paper Making ◽  
Effective Additive

Abstract Utilization of wastes from some biomass-based industries in production of nanomaterials is vital in the green chemistry field. This work deals with valorization of lignin from paper making by-product for synthesizing lignin nanoparticles (LNPs) and evaluating its role on performance of hydroxypropyl cellulose (HPC) film as liquid crystal nanocomposite development, in comparison with different carbon nanoallotropes. In this respect LNPs, graphene oxide (GO) and bagasse-based carbon quantum dots (CQD) and carbon oxide (CO) were synthesized and incorporated with HPC during film formation. The effective behavior of LNPs, especially that produced from using highly polar solvent (PEG), on performance of HPC film was evidenced, from examining polarized light microscope together with TEM, SEM, XRD, FTIR, TGA as well as mechanical tests. The results showed that LNPs provided the HPC-nanocomposite film with acceptable thermal stability and mechanical properties, together with distinct complex mixed colorful texture, lines nearly like Grandjean-Cano lines aligned (PO images) and the planar layered morphology.

scholarly journals Valorization of Biomass Pulping Waste As Effective Additive For Enhancing The Performance of Liquid Crystal Hydroxypropyl Cellulose Nanocomposite Film

2021 ◽  
Keyword(s):  
Liquid Crystal ◽  
Full Text ◽  
Nanocomposite Film ◽  
Hydroxypropyl Cellulose ◽  
Effective Additive

Abstract The full text of this preprint has been withdrawn by the authors as it was submitted and made public without the full consent of all the authors. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author.

Controlling the Selective Light Reflection of a Cholesteric Liquid Crystal of (Hydroxypropyl)cellulose by Electrical Stimulation

1998 ◽  
Vol 31 (7) ◽  
pp. 2384-2386 ◽  
Author(s):  
Yoshiyuki Nishio ◽  
Toshinori Kai ◽  
Noritaka Kimura ◽  
Kazuhiro Oshima ◽  
Hidematsu Suzuki
Keyword(s):  
Electrical Stimulation ◽  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Hydroxypropyl Cellulose ◽  
Light Reflection

scholarly journals Applications of Natural Purple from Dolabella auricularia: Colouration of Cholesteric Liquid Crystals

2016 ◽  
Vol 50 ◽  
pp. 1-6
Author(s):  
Yuki Kudo ◽  
Hiromasa Goto
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Cholesteric Liquid Crystal ◽  
Optical Microscope ◽  
Hydroxypropyl Cellulose ◽  
Cholesteric Liquid Crystals ◽  
Optical Texture ◽  
Sea Hare ◽  
Crystal Mixture

Hydroxypropyl cellulose (HPC) as a cholesteric liquid crystal was coloured with purple ink from Dolabella auricularia as a sea hare. Optical texture of the liquid crystal mixture was confirmed with a polarising optical microscope.

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