Materiales

Materiales

Optimal Control of Passive Cascaded Liquid Crystal Polarization Gratings
04/02/2023 - The incidence angle of a beam entering a liquid crystal variable retarder (LCVR) and the liquid crystal polarization grating (LCPG) is greater when the LCPG is utilized in the quadrature cascade,...
Liquid crystal epoxy composites based on functionalized boron nitride: Synthesis and thermal properties
24/01/2023 - Graphical abstract of f?BN/LCE4 composites.A composite was prepared by in?situ polymerization of liquid crystal epoxy (LCE4) with a low dielectric and high thermal conductivity boron nitride (BN)...
Highly Damping and Self?Healable Ionic Elastomer from Dynamic Phase Separation of Sticky Fluorinated Polymers
20/01/2023 - Inspired by the heterogeneous structure of adipose tissue, the first example of damping self?healable ionic elastomer is reported, which features a dynamic phase?separated structure with...
5G polarization converter based on low-temperature co-fired ceramic (LTCC) substrate
19/01/2023 - Abstract To meet the polarization adaptation in communication systems, it is necessary to improve the performance of polarization converters. Microwave dielectric materials are...
Covalent nanoarchitectonics: Polymer synthesis with designer structures and sequences
20/01/2023 - As a post nanotechnology concept, nanoarchitectonics integrates nanotechnology with the other research fields to create new functional materials from nanounits, where polymer chemistry plays...
Liquid Crystal-Tuned Planar Optics in Terahertz Range
21/01/2023 - Recently, terahertz waves of higher frequencies compared to microwave and radio frequency have shown great potential in radar detection and high-speed wireless communication. To spatially control the...
Structural transformations and phase transitions in hexagonal La-containing lyomesophases
- Understanding and identification of phase equilibrium in self-assembling systems like lyotropic liquid crystals (LLCs) plays a key role in their further practical applications. In this study the...
Effect of Mesogenic Phase and Structure of Liquid Crystals on Tribological Properties as Lubricant Additives
12/01/2023 - To develop a high-performance additive that can meet different operating conditions, three liquid-crystal compounds (LCs) were developed as additives for a base oil. The structures and thermal...
Orientation Behavior of Nematic Liquid Crystals at Flow-Wall Interfaces in Microfluidic Channels
12/01/2023 - This work characterizes the orientation behavior of nematic liquid crystals in pressure-driven flows of microfluidic channels at interfaces between the flow and microchannel walls. The impact of flow...
Spontaneous Twisting of Achiral Hard Rod Nematics
- Since Onsager’s seminal work, hard rods have been taken as a prototype of nematic liquid crystals, characterized by uniaxial order and a uniform director field as a ground state. Here, using...
Self-Oscillating Curling of a Liquid Crystal Elastomer Beam under Steady Light
09/01/2023 - Self-oscillation absorbs energy from a steady environment to maintain its own continuous motion, eliminating the need to carry a power supply and controller, which will make the system more...
Perspiring Soft Robotics Skin Constituted by Dynamic Polarity?Switching Porous Liquid Crystal Membrane
06/01/2023 - Secretion of functional fluids is essential for affecting surface properties, such as lubrication, and transporting biochemical elements in ecosystems[2]. The existing synthetic polymer membranes...
Elastomers grow into actuators
05/01/2023 - It is common knowledge that when an elastomer (rubber) is stretched, its length will maintain if its two ends are fixed. Here, we serendipitously find that an elastomer slowly elongated further to...
Tris(boranil) Columnar Liquid Crystalline Fluorophores: pseudo?Triphenylene Boron(III) Complexes with N3B3O3 Core
07/01/2023 - The borate complexes derived from salicylaldimine ligands, called boranils, possess a wide range of photophysical and electronic characteristics intrinsically. The unique combination of molecular...
Development of a Novel Tape-Casting Multi-Slurry 3D Printing Technology to Fabricate the Ceramic/Metal Part
06/01/2023 - Printing ceramic/metal parts increases the number of applications in additive manufacturing technology, but printing different materials on the same object with different mechanical properties will...
Self-Sustained Euler Buckling of an Optically Responsive Rod with Different Boundary Constraints
07/01/2023 - Self-sustained oscillations can directly absorb energy from the constant environment to maintain its periodic motion by self-regulating. As a classical mechanical instability phenomenon, the Euler...
Study on the Preparation and Optical Properties of Graphene Oxide@Fe3O4 Two-Dimensional Magnetically Oriented Nanocomposites
04/01/2023 - In this work, graphene oxide@Fe3O4 (GO@Fe3O4) two-dimensional magnetically oriented nanocomposites were prepared through the co-precipitation approach using graphene oxide as the carrier and...
Comparative investigation of the structural evolution of zinc stearate and calcium stearate in a polypropylene random copolymer upon heating and cooling
13/02/2023 - Zinc stearate (ZnSt2) and calcium stearate (CaSt2) are two kinds of extensively used additives in polymer industry. However, the selection principle of the two soaps in different polyolefins is...
Skin-friendly and antibacterial monodomain liquid crystal elastomer actuator
- Monodomain liquid crystal elastomers (mLCEs) are flexible and biocompatible smart materials that show unique behaviors of soft elasticity, anisotropy, and reversible shape changes above the...
Research Progress on Blue-Phase Liquid Crystals for Pattern Replication Applications
26/12/2022 - Blue-Phase Liquid Crystals (BPLCs) are considered to be excellent 3D photonic crystals and have attracted a great deal of attention due to their great potential for advanced applications in a wide...
Stability-Enhanced Emission Based on Biophotonic Crystals in Liquid Crystal Random Lasers
26/12/2022 - A new design of a bio-random laser based on a butterfly wing structure and ITO glass is proposed in this article. Firstly, the butterfly wing structure was integrated in a liquid crystal cell made of...