The interfacial mechanical properties of functionalized graphene–polymer nanocomposites

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 66658-66664 ◽  
Author(s):  
Feng Liu ◽  
Ning Hu ◽  
Jianyu Zhang ◽  
Satoshi Atobe ◽  
Shayuan Weng ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polymer Nanocomposites ◽  
Polymer Matrix ◽  
Load Transfer ◽  
Functionalized Graphene ◽  
Transfer Capability

The interfacial mechanical properties between graphene (GR) and a polymer matrix play a key role in load transfer capability for GR/polymer nanocomposites.

Multiscale-Based Simulations of Longitudinal Mechanical Behaviors of Single-Walled Carbon Nanotubes Reinforced Polymer Nanocomposites

2013 ◽  
Author(s):  
James Han ◽  
Yu-Fu Ko ◽  
Hsien-Yang Yeh
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Mechanical Behavior ◽  
Polymer Nanocomposites ◽  
Polymer Matrix ◽  
Material Properties ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Reinforced Polymer ◽  
Walled Carbon Nanotubes

Longitudinal elastic mechanical behavior of the armchair and zigzag single-walled carbon nanotubes (SWCNTs) and the SWCNTs reinforced polymer nanocomposites are investigated. Finite element analysis (FEA) models of the SWCNTs and the SWCNTs reinforced polymer nanocomposites are developed utilizing multiscale modeling technique along with molecular structural mechanics (MSM), which provides material properties at molecular scale and establishes relations between the steric potential energy and the classic structural mechanics. Material properties of C-C bond were obtained using multiscale-based modeling method with the consideration of shear deformation. In addition, for the interphase layer interaction between the carbon molecules of SWCNTs and the molecules of polymer matrix, multiscale-based modeling method was utilized to obtain the stiffness of nonlinear spring elements representing the van der Waals interaction. It is observed that the mechanical behavior of the SWCNTs reinforced polymer nanocomposites is dictated by the mechanical behavior of the SWCNTs embedded in the polymer matrix. Furthermore, varying radius and length of the SWCNTs would affect the longitudinal elastic mechanical properties of the SWCNTs reinforced polymer nanocomposites. Specifically, the simulation results had demonstrated that longitudinal elastic mechanical properties of the SWCNTs reinforced polymer nanocomposites would vary due to different loading conditions applied, i.e., discrete and continuous loading conditions.

A Review on Effect of Nanoreinforcement on Mechanical Properties of Polymer Nanocomposites

2018 ◽  
Vol 280 ◽  
pp. 284-293 ◽  
Author(s):  
M.N. Ervina Efzan ◽  
N. Siti Syazwani
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Polymer Nanocomposites ◽  
Polymer Matrix ◽  
Functional Performance ◽  
Polymer Nanocomposite ◽  
Filled Polymers ◽  
Performance Properties ◽  
New Class ◽  
Potential Use

Polymer nanocomposites represent a new class of materials that offer an alternative to the conventional filled polymers. In this new class of materials, nanosized reinforcement are dispersed in polymer matrix offering tremendous improvement in performance properties of the polymer. The combination of nanoscale reinforcement and polymer matrix possess outstanding properties and functional performance which play an important role in many field of applications. This review addresses the types of nanoscale materials reinforced in polymer matrix such as nanocellulose, carbon nanotubes (CNTs), graphene, nanofibers and nanoclay followed by the discussion on the effect of these nanoscale reinforcement on mechanical properties of polymer nanocomposites. Besides, the potential use of polymer nanocomposite reinforced with those nanoscale reinforcements in various field of applications also discussed.

The Effect of Various Nanoclay Surface Modifications on the Thermal and Mechanical Properties of Amorphous Polyamide Nanocomposites

2020 ◽  
Vol 1010 ◽  
pp. 154-159
Author(s):  
K.A. Abdul Halim ◽  
James E. Kennedy ◽  
Joseph B. Farrell ◽  
Muhammad Salihin Zakaria
Keyword(s):  
Mechanical Properties ◽  
Thermal Analysis ◽  
Polymer Nanocomposites ◽  
Polymer Matrix ◽  
Tensile Testing ◽  
Polymer System ◽  
Surface Modifications ◽  
Mechanical Analysis ◽  
Thermal And Mechanical Properties ◽  
Scanning Calorimetry

The addition of nanoclay within polymer matrix is anticipate to enhance the properties of the polymer system. Nonetheless, one of the key elements in property enhancements of a polymer nanocomposites is the surface modifications of the nanoclay. This is due to the affinity between polymer matrix and nanoclay is of important factors should be considered. In this study, amorphous polyamide were melt blended with different nanoclay grades with different surface modifications in order to evaluate the best clay grade for the polymer system. The thermal analysis carried out on the amorphous polyamide nanocomposites were carried out by means of differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) whereas the mechanical properties were investigated using tensile testing. It was observed that there were changes in the glass transition temperature (Tg) of the nanocomposites due to clay additions. Further, the storage modulus was found to increase as a result of nanoclay incorporation. The type of clay grades significantly affects the mechanical properties of the amorphous polyamide nanocomposites.

Quantification of the Interface Interactions in Polymer Nanocomposites

2010 ◽  
Vol 654-656 ◽  
pp. 2608-2611
Author(s):  
Qing Hua Zeng ◽  
Wen Xu ◽  
Ai Bing Yu ◽  
Donald R. Paul
Keyword(s):  
Mechanical Properties ◽  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Polymer Nanocomposites ◽  
Load Transfer ◽  
Interaction Strength ◽  
Dynamics Simulation ◽  
Multiphase Materials ◽  
Reinforced Polymer ◽  
Interfacial Characteristics

Interfaces are important for many properties and applications of multiphase materials. This is particular true for particle-reinforced polymer composites, where the interfacial characteristics between particle and polymer play a crucial role in load transfer and mechanical properties. In polymer nanocomposites, the adhesion strength between particle and polymer matrix is a major factor in determining their mechanical properties. In this work, we present our recent study towards the quantification of the interaction strength at the interface of clay-based polymer nanocomposites by molecular dynamics simulation.

scholarly journals Covalently functionalized graphene oxide wrapped by silicon–nitrogen-containing molecules: preparation and simultaneous enhancement of the thermal stability, flame retardancy and mechanical properties of epoxy resin nanocomposites

RSC Advances ◽  
2020 ◽  
Vol 10 (24) ◽  
pp. 13949-13959
Author(s):  
Yanlong Sui ◽  
Lijie Qu ◽  
Peihong Li ◽  
Xueyan Dai ◽  
Qiangsheng Fang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Graphene Oxide ◽  
Epoxy Resin ◽  
Polymer Matrix ◽  
Flame Retardancy ◽  
Flame Retardance ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Epoxy Resin Nanocomposites

This study provided a modification strategy for improving the flame retardance of graphene and its derivatives in a polymer matrix.

scholarly journals Synergic Effect of TiO2 Filler on the Mechanical Properties of Polymer Nanocomposites

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2017
Author(s):  
Cristina Cazan ◽  
Alexandru Enesca ◽  
Luminita Andronic
Keyword(s):  
Mechanical Properties ◽  
Polymer Nanocomposites ◽  
Polymer Matrix ◽  
Time Pressure ◽  
Volume Fraction ◽  
Interfacial Area ◽  
Polymeric Matrix ◽  
Inorganic Filler ◽  
Polymeric Nanocomposites ◽  
Technological Parameters

Nanocomposites with polymer matrix offer excellent opportunities to explore new functionalities beyond those of conventional materials. TiO2, as a reinforcement agent in polymeric nanocomposites, is a viable strategy that significantly enhanced their mechanical properties. The size of the filler plays an essential role in determining the mechanical properties of the nanocomposite. A defining feature of polymer nanocomposites is that the small size of the fillers leads to an increase in the interfacial area compared to traditional composites. The interfacial area generates a significant volume fraction of interfacial polymer, with properties different from the bulk polymer even at low loadings of the nanofiller. This review aims to provide specific guidelines on the correlations between the structures of TiO2 nanocomposites with polymeric matrix and their mechanical properties. The correlations will be established and explained based on interfaces realized between the polymer matrix and inorganic filler. The paper focuses on the influence of the composition parameters (type of polymeric matrix, TiO2 filler with surface modified/unmodified, additives) and technological parameters (processing methods, temperature, time, pressure) on the mechanical strength of TiO2 nanocomposites with the polymeric matrix.

Effect of fibre content on the mechanical properties of hemp fibre woven fabrics/polypropylene composite laminates

2021 ◽  
pp. 096739112110239
Author(s):  
Sheedev Antony ◽  
Abel Cherouat ◽  
Guillaume Montay
Keyword(s):  
Mechanical Properties ◽  
Polymer Matrix ◽  
Composite Laminates ◽  
Volume Fraction ◽  
Fibre Volume Fraction ◽  
Fibre Volume ◽  
Woven Fabrics ◽  
Fibre Content ◽  
Viscoelastic Behaviour ◽  
Hemp Fibre

Nowadays natural fibre composites have gained great significance as reinforcements in polymer matrix composites. Composite material based on a polymer matrix reinforced with natural fibres is extensively used in industry due to their biodegradability, recyclability, low density and high specific properties. A study has been carried out here to investigate the fibre volume fraction effect of hemp fibre woven fabrics/PolyPropylene (PP) composite laminates on the tensile properties and impact hammer impact test. Initially, composite sheets were fabricated by the thermal-compression process with desired number of fabric layers to obtain composite laminates with different fibre volume fraction. Uniaxial, shear and biaxial tensile tests were performed and mechanical properties were calculated. Impact hammer test was also carried out to estimate the frequency and damping parameters of stratified composite plates. Scanning Electron Microscope (SEM) analysis was performed to observe the matrix and fibre constituent defects. Hemp fabrics/PP composite laminates exhibits viscoelastic behaviour and as the fibre volume fraction increases, the viscoelastic behaviour decreases to elastic behaviour. Due to this, the tensile strength increases as the fibre content increases. On the other hand, the natural frequency increases and damping ratio decrease as the fibre volume fraction increases.

Effect of nanofillers on the crystalline and mechanical properties of EVACO polymer nanocomposites

2021 ◽  
Author(s):  
Gibin George ◽  
H. Manikandan ◽  
T.M. Anup Kumar ◽  
Sam Joshy ◽  
A.C. Sanju ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polymer Nanocomposites
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