An overview of biopolymer-based nanocomposites for optics and electronics

Author(s):  
Elena Colusso ◽  
Alessandro Martucci

We summarize the recent advances in optics and electronics of biopolymer-based nanocomposites. They are emerging as new materials for high-tech applications, thanks to the sustainability of the matrix and the functionalities of the nanofillers.

Nanophotonics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 2315-2340 ◽  
Author(s):  
Junli Wang ◽  
Xiaoli Wang ◽  
Jingjing Lei ◽  
Mengyuan Ma ◽  
Cong Wang ◽  
...  

AbstractDue to the unique properties of two-dimensional (2D) materials, much attention has been paid to the exploration and application of 2D materials. In this review, we focus on the application of 2D materials in mode-locked fiber lasers. We summarize the synthesis methods for 2D materials, fiber integration with 2D materials and 2D materials based saturable absorbers. We discuss the performance of the diverse mode-locked fiber lasers in the typical operating wavelength such as 1, 1.5, 2 and 3 μm. Finally, a summary and outlook of the further applications of the new materials in mode-locked fiber lasers are presented.


2019 ◽  
Vol 35 (8) ◽  
pp. 917-927 ◽  
Author(s):  
Hao Jiang ◽  
Yongsheng Han ◽  
Qiang Zhang ◽  
Jiexin Wang ◽  
Yiqun Fan ◽  
...  

Abstract Materials-oriented chemical engineering involves the intersection of materials science and chemical engineering. Development of materials-oriented chemical engineering not only contributes to material research and industrialization techniques but also opens new avenues for chemical engineering science. This review details the major achievements of materials-oriented chemical engineering fields in China, including preparation strategies for advanced materials based on the principles of chemical engineering as well as innovative separation and reaction techniques determined by new materials. Representative industrial applications are also illustrated, highlighting recent advances in the field of materials-oriented chemical engineering technologies. In addition, we also look at the ongoing trends in materials-oriented chemical engineering in China.


2014 ◽  
Vol 926-930 ◽  
pp. 194-197
Author(s):  
Jian Quan Yang ◽  
Yong Cai Zheng ◽  
Liang Chen

The development of sports needs the use of new high - tech materials and forces human to research and make use of new materials1 It is very importent and urgent to study and summary the effects of new high - tech materials on the development of sports. New materials applied in the game equipment greatly promoted the increase of sports results. Summarizing and researching new materials in sports equipment in the role, interaction, main material and function and the production process characteristics helps accelerate the sports value and application of new materials.


2021 ◽  
Author(s):  
Yanzi Xu ◽  
Ruohan Xu ◽  
Zhi Wang ◽  
Yu Zhou ◽  
Qifei Shen ◽  
...  

Recent progress on STED fluorophores for super-resolution imaging and also their characteristics are outlined here, thus providing some guidelines to select proper probes and even develop new materials for super-resolution imaging via STED nanoscopy.


Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 334 ◽  
Author(s):  
Cristina Pavon ◽  
Miguel Aldas ◽  
Juan López-Martínez ◽  
Santiago Ferrándiz

In this work, different materials for three-dimensional (3D)-printing were studied, which based on polycaprolactone with two natural additives, gum rosin, and beeswax. During the 3D-printing process, the bed and extrusion temperatures of each formulation were established. After, the obtained materials were characterized by mechanical, thermal, and structural properties. The results showed that the formulation with containing polycaprolactone with a mixture of gum rosin and beeswax as additive behaved better during the 3D-printing process. Moreover, the miscibility and compatibility between the additives and the matrix were concluded through the thermal assessment. The mechanical characterization established that the addition of the mixture of gum rosin and beeswax provides greater tensile strength than those additives separately, facilitating 3D-printing. In contrast, the addition of beeswax increased the ductility of the material, which makes the 3D-printing processing difficult. Despite the fact that both natural additives had a plasticizing effect, the formulations containing gum rosin showed greater elongation at break. Finally, Fourier-Transform Infrared Spectroscopy assessment deduced that polycaprolactone interacts with the functional groups of the additives.


Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1596 ◽  
Author(s):  
Artemiy Aborkin ◽  
Kirill Khorkov ◽  
Evgeny Prusov ◽  
Anatoly Ob’edkov ◽  
Kirill Kremlev ◽  
...  

Aluminum matrix composites reinforced with multiwalled carbon nanotubes (MWCNTs) are promising materials for applications in various high-tech industries. Control over the processes of interfacial interaction in Al/MWCNT composites is important to achieve a high level of mechanical properties. The present study describes the effects of coating MWCNTs with titanium carbide nanoparticles on the formation of mechanical properties and the evolution of the reinforcement structure in bulk aluminum matrix nanocomposites with low concentrations of MWCNTs under conditions of solid-phase consolidation of ball-milled powder mixtures. Using high-energy ball milling and uniaxial hot pressing, two types of bulk nanocomposites based on aluminum alloy AA5049 that were reinforced with microadditions of MWCNTs and MWCNTs coated with TiC nanoparticles were successfully produced. The microstructural and mechanical properties of the Al/MWCNT composites were investigated. The results showed that, on the one hand, the TiC nanoparticles on the surface of the MWCNT hybrid reinforcement reduced the damage of reinforcement under the intense exposure of milling bodies, and on the other hand, they reduced the contact area of the MWCNTs with the matrix material (acting as a barrier interface), which also locally inhibited the reaction between the matrix and the MWCNTs.


2015 ◽  
Vol 71 ◽  
pp. 9-25 ◽  
Author(s):  
Bruno Henrique Fumes ◽  
Meire Ribeiro Silva ◽  
Felipe Nascimento Andrade ◽  
Carlos Eduardo Domingues Nazario ◽  
Fernando Mauro Lanças

Author(s):  
Carson O. Squibb ◽  
Michael K. Philen

Smart materials are unique in their ability to change properties in response to an environmental stimulus. These materials provide promising opportunities for adaptable aerospace structures, where they can be altered to suit their need. In this research, Honeycomb Polymer Composites (HPCs) were investigated as potential materials for this need. HPCs are new materials that consist of a polymer embedded in a honeycomb structure, and exhibit a significantly higher stiffness than the polymer or honeycomb alone. This stiffness amplification is due to the nearly incompressible polymer resisting the volume change within the honeycomb cells. HPC samples were fabricated using an aramid honeycomb, with either silicone or urethane rubber as the matrix materials to fill the honeycomb. Varying polymer stiffness, honeycomb geometry, and testing temperature were all tested to observe the effects on the material properties. The results indicated that the HPCs could be effectively tailored and modeled to suit the need for different effective moduli. This research provides important insight and results in the development of programmable honeycomb polymer composites (PHPCs), which rely on shape memory polymers (SMP) as the internal working polymer.


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