Investigating the mechanical properties of nonfunctionalized MWCNT reinforced polymer nanocomposites

2020 ◽  
Author(s):  
Vijay Patel ◽  
Unnati Joshi ◽  
Anand Joshi
Keyword(s):  
Mechanical Properties ◽  
Polymer Nanocomposites ◽  
Reinforced Polymer

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.

scholarly journals Nanocellulose and nanoclay as reinforcement materials in polymer composites: A review

2020 ◽  
Vol 16 (2) ◽  
pp. 145-153
Author(s):  
Fathin Najihah Nor Mohd Hussin ◽  
Roswanira Abdul Wahab ◽  
Nursyafreena Attan
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Environmental Impact ◽  
Polymer Composites ◽  
Polymer Nanocomposites ◽  
High Performance ◽  
Reinforced Polymer ◽  
Low Weight ◽  
High Performance Polymer ◽  
Strength And Stiffness

The advancement of nanotechnology has opened a new opportunity to develop nanocomposites using nanocellulose (NC) and nanoclay (NCl). Researchers have regarded these nanocomposites as promising substitutes for conventional polymers because of their characteristic and useful features, which include exceptional strength and stiffness, low weight, and low environmental impact. These features of NC and NCl explain their multifarious applications across many sectors. Here we review NC and NCl as well as various reinforced polymer composites that are made up of either of the two nanomaterials. The structural and physicochemical properties of NC and NCl are highlighted, along with the mechanical behavior and thermal properties of NC. Current nanomaterial hybrid biopolymers for the production of novel high-performance polymer nanocomposites are also discussed with respect to their mechanical properties.

Fabrication and Mechanical Characterization of Polypropylene Clay Nanocomposites

2021 ◽  
Vol 882 ◽  
pp. 107-113
Author(s):  
Afshin Zamani Zakaria ◽  
Salar Salahi ◽  
Guney Guven Yapici
Keyword(s):  
Mechanical Properties ◽  
Polymer Nanocomposites ◽  
Mechanical Characterization ◽  
Clay Nanocomposites ◽  
Strain Rates ◽  
Influence Of Process Parameters ◽  
Reinforced Polymer ◽  
Tensile Performance ◽  
Extrusion Method

Investigating the influence of process parameters is vital to improve the mechanical properties of nanoparticle reinforced polymer nanocomposites. In this effort, nanocomposites of polypropylene/nanoclay are prepared by the extrusion method. In order to characterize the mechanical behavior of nanocomposites over different compounding ratios, samples are prepared with 5 and 10 wt%. Effect of re-extrusion and PP-g-MA compatibilizer on the tensile performance of nanocomposites is evaluated at different strain rates. XRD evaluation of compounds indicated that re-extrusion is an important factor in increasing the exfoliation degree.

Electric Field-Manipulation of Cellulose Whisker-Reinforced Polymer Nanocomposites

2009 ◽  
Author(s):  
Sanjay V. Kalidindi ◽  
Zoubeida Ounaies ◽  
Hamid Kaddami
Keyword(s):  
Mechanical Properties ◽  
Dielectric Constant ◽  
Electric Field ◽  
Polymer Nanocomposites ◽  
Applied Field ◽  
Chain Formation ◽  
Ac Electric Field ◽  
Reinforced Polymer ◽  
Cellulose Whisker ◽  
Future Work

Aligning cellulose whiskers can significantly enhance electrical and mechanical properties in polymer composites. Here, we report a method of sonication and stirring to disperse and stabilize CWs in solution. Applying an AC electric field led to good alignment and chain formation of CWs in the direction of the applied field. Alignment and chain formation was found to be function of electric field magnitude, frequency and time. Dielectric constant of the solutions as a function of microstructure was studied. Improvement in dielectric constant with increase in frequency was observed. Future work will focus on processing thin films with individually dispersed CWs, and improving their alignment to further increase the electrical and mechanical properties.

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