Graphene Composites

2019 ◽  
Vol 23 ◽  
pp. 57-63 ◽  
Author(s):  
Chin Wei Lai

This chapter reviews recent development of graphene-based polymer composites. The formation of graphene oxide and graphene are a vital two dimensional (2D) material has received a lot of research interest in commercialization aspect due to its excellent electrical, thermal as well as mechanical properties at very low filler content. In this manner, utilization of graphene-based polymer composites with different polymer matrixes have been attracted increasing attention in recent years for both fundamental studies and applied research into industrial applications in many fields. Herein, novel properties of polymer (epoxy, polystyrene, and PANI) / graphene composites will be reviewed along with detailed examples drawn from the scientific literature. Keywords: Graphene-based polymer composites, thermo-mechanical properties, two dimensional (2D) materials

RSC Advances ◽  
2017 ◽  
Vol 7 (36) ◽  
pp. 22045-22053 ◽  
Author(s):  
Neng-Jian Huang ◽  
Jing Zang ◽  
Guo-Dong Zhang ◽  
Li-Zhi Guan ◽  
Shi-Neng Li ◽  
...  

GONR-filled H-t-PDMS nanocomposites were fabricated by using a facile solvent-free process, and the reinforcement efficiency of GONRs at low filler content is superior to those of the other carbon nano-fillers.


2021 ◽  
Vol 55 (1-2) ◽  
pp. 1-12
Author(s):  
TSHWAFO ELIAS MOTAUNG

"This review presents recent research on cellulosic materials and its latest uses, as well as scientific possibilities for more applications. Cellulose continues to display its advantages over synthetic fibers and its potential to replace fossilbased materials, which are known to harm ecosystems. Common attractive applications of cellulose include packaging, healthcare materials, electronics and printing. Most applications seem to rotate around the equilibrium of hydrophilicity, its mechanical properties and optical properties. Details on industrial applications, knowledge gaps and green innovations in cellulose conductivity, as well as limitations of its thermal degradation, are thoroughly covered. Most innovations are motivated by industrial needs, because renewability and inexpensiveness are the latest additional values to most industries. All common and innovative pretreatments are well summarized in this review. Furthermore, the paper provides interesting details on cellulose polymer composites, their applications and some recommendations for further research."


2019 ◽  
Author(s):  
Marek Jałbrzykowski ◽  
Sławomir Obidziński ◽  
Wioletta Świder ◽  
Magdalena Dołżyńska

The paper presents the research results of the impact of reduced graphene oxide (RGO) on selected mechanical and functional properties of LDPE foil. The foils were made by blow extrusion, with different amounts of RGO added to the granulate prior the extrusion process. Prepared foil samples were assessed for mechanical properties in a static tensile test and the assessment of their bacterial resistance was tested. The impact of RGO on antibacterial interactions and favorable mechanical properties of the foils were found. Analysis of the results allowed to select the most advantageous solution which was prepared for industrial applications.


2019 ◽  
Vol 1 (8) ◽  
pp. 2891-2900 ◽  
Author(s):  
Ning Liu ◽  
Mathew Becton ◽  
Liuyang Zhang ◽  
Keke Tang ◽  
Xianqiao Wang

Mechanical properties, especially negative Poisson's, of 2D sinusoidal lattice metamaterials based on 2D materials depends highly on both geometrical factors and tuned mechanical anisotropy according to our generic coarse-grained molecular dynamics simulations.


Nanoscale ◽  
2021 ◽  
Author(s):  
Yuan Cheng ◽  
Xing Wu ◽  
Zijian Zhang ◽  
Yao Sun ◽  
Yunshan Zhao ◽  
...  

Two-dimensional (2D) materials have received tremendous attention from the research community in the past decades, because of their numerous striking physical, chemical and mechanical properties and promising potential in a...


2017 ◽  
Vol 7 ◽  
pp. 184798041774230 ◽  
Author(s):  
Qiaofeng Zheng ◽  
Baoguo Han ◽  
Xia Cui ◽  
Xun Yu ◽  
Jinping Ou

Graphene, a two-dimensional monoatomic thick building block of a carbon allotrope, has emerged as nano-inclusions in cementitious materials due to its distinguished mechanical, electrical, thermal, and transport properties. Graphene nanoplatelet and its oxidized derivative graphene oxide were found to be able to reinforce and modify the cementitious materials from atomic scale to macroscale, and thereby endow them with excellent mechanical properties, durability, and multifunctionality. This article reviews the progress of fabrication, properties, mechanisms, and applications of graphene-based cementitious composites.


2012 ◽  
Vol 476-478 ◽  
pp. 1488-1495 ◽  
Author(s):  
Yong Xiu Li ◽  
Chang Yong Sun ◽  
Chang Jiang Yu ◽  
Chao Xian Wang ◽  
Yun Jun Liu ◽  
...  

Graphene, a two-dimensional carbon material, has attracted tremendous research interest in recent years due to its exceptional properties, such as excellent electrical, mechanical and thermal properties. Meanwhile, various kinds of novel functional materials based on Graphene oxide are employed in different fields like solar cell, sensor and catalysis. With the increasing number of catalysts during synthesizing graphene-based composites, the development of catalysis science and technology will surely be promoted. This paper reviews recent advances in the preparation and structure of graphene oxide, especially its applications in catalysis fields.


2019 ◽  
Vol 6 (2) ◽  
pp. 181866 ◽  
Author(s):  
Guibin Yao ◽  
Tianchen Duan ◽  
Enyi Chi ◽  
Pengran Guo ◽  
Yiguo Li ◽  
...  

It has been reported that the introduction of reduced graphene oxide (RGO) can enhance the crystallization and orientation of high-density polyethylene (HDPE) matrix and thus improve the mechanical properties of HDPE/RGO nanocomposites. In this study, the local microstructures and orientations in different regions of HDPE/RGO bars with varied RGO contents were further explored by two-dimensional small-angle X-ray scattering using a microbeam technique. It is unveiled that the orientation orderings of each position is intensified with increasing RGO amount, and of particular interest is the observation of the slight change of the ordering degrees in diverse zones of HDPE/RGO nanocomposite bars, indicating that RGO imposes a uniform enhancing effect upon HDPE matrix within different areas and consequently induces an effective increase of the mechanical properties of HDPE/RGO nanocomposites.


Author(s):  
Carmine Lucignano ◽  
Erica Anna Squeo ◽  
Alessandro Guglielmotti ◽  
Fabrizio Quadrini

This paper proposes a new foaming technology (solid-state foaming) to produce structural foams from waste thermosetting resins. The proposed technology is easy and does not require specific and expensive equipments. Solid tablets are produced by cold compaction of resin powder, and foam by heating in an oven. Composite foams can be produced by mixing fillers and resin powder before the cold compaction. In the experiment, an epoxy-polyester (EP-PE) resin powder, deriving from the waste of a manufacturer of domestic appliances, was used with montmorillonite (MMT) particles. Resulting foams with a filler content ranging from 0 to 10 wt% were characterized in terms of physical and mechanical properties (by compression tests). Although the effect of the MMT content seems to be negative for the adopted resin, the feasibility of producing composite foams by recycling waste industrial powders is shown. The properties of the unfilled foams are sufficient for many industrial applications.


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