Moving Mesh Partial Differential Equation Modelling of a 5CB Nematic Liquid Crystal Confined in Symmetric and Asymmetric Pi-Cells: A Review DOI Open Access
A. Amoddeo

Symmetry, Journal Year: 2024, Volume and Issue: 17(1), P. 30 - 30

Published: Dec. 27, 2024

The switching properties of nematic liquid crystals under electrical and mechanical stresses play a fundamental role in the design fabrication electro-optical devices. Depending on stress applied to texture confined pi-cell, different configurations are allowed inside cell, while induced distortion is relaxed by means growing biaxial domains which can end with order reconstruction phenomenon, transition connecting two topologically textures occur regions pi-cell. Due space time scales involved, modelling frame Landau–de Gennes tensor theory mandatory correctly describe fast-switching mechanisms from computational point view, sophisticated numerical techniques required grasp tiny fast features be predicted mathematical modelling. In this paper, we review results obtained 5CB crystal pi-cell performed using technique based equidistribution principle, tailored for description complex physical system phenomena coupled strong distortions. After recap underneath method, focus material when subjected variable both symmetric asymmetric conditions.

Language: Английский

Crystallinity and Liquid Crystallinity of Polyurethanes: How Tailoring of Order Contributes to Customized Properties and Applications DOI Open Access
Artur Bukowczan, Konstantinos N. Raftopoulos, Krzysztof Pielichowski

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(6), P. 784 - 784

Published: March 15, 2025

Studies on polyurethane (PU) materials offer advantageous properties utilized in various applications. The complex nature of the PUs structure and morphology gives them unique properties, but at same time poses a considerable challenge for characterization design structure–property relationships. Polyurethanes with tailored crystallinity can exhibit peculiar resistance to mechanical chemical factors, allowing widening range application. Liquid crystalline polyurethanes have gained renewed interest thanks development research methodologies new possibilities modifying diol isocyanate monomers. study shows that liquid crystal phenomena be effectively used polymer compatibilization, fiber nanofibers applications, as well ‘smart’ multi-stimuli materials.

Language: Английский

Citations

0
Liquid Crystal Technology for IoT and Beyond: Advancements and Future Directions DOI
Jinfeng Li,

H. Li

Published: Feb. 11, 2025

Language: Английский

Citations

0
Liquid Crystal Research and Novel Applications in the 21st Century DOI Creative Commons
Ingo Dierking

Crystals, Journal Year: 2025, Volume and Issue: 15(4), P. 321 - 321

Published: March 28, 2025

Liquid crystals (LCs) are largely known as the materials used in flat panel displays, from simple pocket calculator displays to laptop screens, all way large TVs [...]

Language: Английский

Citations

0
Converting waste liquid crystal polyesters into microporous carbons for generating freshwater and electricity DOI

Qiannan Cheng,

Tao Peng, Jie Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 512, P. 162768 - 162768

Published: April 17, 2025

Language: Английский

Citations

0
Liquid Crystal/Carbon Nanotube/Polyaniline Composites and Their Coating Orientation Patterning Applications DOI Open Access
Fuqiang Chu,

Haikuo Zhang,

Xu Zhou

et al.

Coatings, Journal Year: 2024, Volume and Issue: 14(12), P. 1568 - 1568

Published: Dec. 13, 2024

In this work, a coating method was used to prepare liquid crystal physical gel with high orientation of molecules, excellent electrical conductivity, and mechanical stability. The matrix nematic phase (5CB), the factor polyvinyl alcohol (PVA), conductive filler carbon nanotubes/polyaniline (CNT/PANI). Chemical in situ polymerization create CNT/PANI composites, wherein polyaniline encapsulates nanotubes enhance their dispersion. At 4 mm/s, 7.2 N pressure, 72 s interval duration, shear flow-induced achieved. consistent large-area molecules realized direction parallel direction. Additionally, type stress sensor assembly based on multiple demonstrated good performance 90° bending test sensitivity 20% tensile test, 23.25. Regarding use materials flexible electronic devices, it is quite important.

Language: Английский

Citations

1
Moving Mesh Partial Differential Equation Modelling of a 5CB Nematic Liquid Crystal Confined in Symmetric and Asymmetric Pi-Cells: A Review DOI Open Access
A. Amoddeo

Symmetry, Journal Year: 2024, Volume and Issue: 17(1), P. 30 - 30

Published: Dec. 27, 2024

The switching properties of nematic liquid crystals under electrical and mechanical stresses play a fundamental role in the design fabrication electro-optical devices. Depending on stress applied to texture confined pi-cell, different configurations are allowed inside cell, while induced distortion is relaxed by means growing biaxial domains which can end with order reconstruction phenomenon, transition connecting two topologically textures occur regions pi-cell. Due space time scales involved, modelling frame Landau–de Gennes tensor theory mandatory correctly describe fast-switching mechanisms from computational point view, sophisticated numerical techniques required grasp tiny fast features be predicted mathematical modelling. In this paper, we review results obtained 5CB crystal pi-cell performed using technique based equidistribution principle, tailored for description complex physical system phenomena coupled strong distortions. After recap underneath method, focus material when subjected variable both symmetric asymmetric conditions.

Language: Английский

Citations

0