- CARBON-BASED HIGH ASPECT RATIO POLYMER NANOCOMPOSITES

2013 ◽  
pp. 106-145
Keyword(s):  
Aspect Ratio ◽  
Polymer Nanocomposites ◽  
High Aspect Ratio ◽  
Carbon Based

scholarly journals Mechanically Improved and Multifunctional CFRP Enabled by Resins with High Concentrations Epoxy-Functionalized Fluorographene Fillers

2021 ◽  
Author(s):  
Junhua Wei
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Elastic Modulus ◽  
Carbon Fiber ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Reinforcing Particles ◽  
Thermoset Resin ◽  
High Concentrations ◽  
Carbon Based

To meet the maximum potential of the mechanical properties of carbon fiber reinforced plastics (CFRP), stress transfer between the carbon fibers through the polymer matrix must be improved. A recent promising approach reportedly used reinforcing particles as fillers dispersed in the resin. Carbon based fillers are an excellent candidate for such reinforcing particles due to their intrinsically high mechanical properties, structure and chemical nature similar to carbon fiber and high aspect ratio. They have shown great potential in increasing the strength, elastic modulus and other mechanical properties of interest of CFRPs. However, a percolation threshold of ~1% of the carbon-based particle concentration in the base resin has generally been reported, beyond which the mechanical properties deteriorate due to particle agglomeration. As a result, the potential for further increase of the mechanical properties of CFRPs with carbon-based fillers is limited. We report a significant increase in the strength and elastic modulus of CFRPs, achieved with a novel reinforced thermoset resin that contains high loadings of epoxy-reacted fluorographene (ERFG) fillers. We found that the improvement in mechanical performance of CFRPs was correlated with increase in ERFG loading in the resin. Using a novel thermoset resin containing 10 wt% ERFG filler, CFRPs fabricated by wet layup technique with twill weaves showed a 19.6% and 17.7% increase in the elastic modulus and tensile strength respectively. In addition, because of graphene’s high thermal conductivity and high aspect ratio, the novel resin enhanced CFRPs possessed 59.3% higher through-plane thermal conductivity and an 81-fold reduction in the hydrogen permeability. The results of this study demonstrate that high loadings of functionalized particles dispersed in the resin is a viable path towards fabrication of improved, high-performance CFRP parts and systems.

Layered Clay Rubber Composites

2013 ◽  
Vol 571 ◽  
pp. 197-213 ◽  
Author(s):  
Wilson Runcy ◽  
Chandran Nithin ◽  
Thomas Sabu
Keyword(s):  
Aspect Ratio ◽  
Polymer Nanocomposites ◽  
High Aspect Ratio ◽  
Gas Permeability ◽  
Layered Silicate ◽  
High Strength ◽  
Polymer Science ◽  
Layered Clays ◽  
Layered Clay ◽  
The Many

The field of nanotechnology is one of the most popular areas for current research and development in virtually all technical disciplines. This obviously includes polymer science and technology. In recent year, researchers have been working on a new scale of reinforcement by incorporating a fine dispersion of clay silicatelayers in the polymer matrix to obtain polymer nanocomposites. Nanoscale layered clays, due to their high aspect ratio and high strength, can play an important role in forming effective polymer nanocomposites. Polymer nanocomposites have received much attention due to its large surface area and very high aspect ratio. Polymer nanocomposites especially rubber based nanocomposites is one of the many composite materials in which researchers and engineers have shown great interest due to their potential to be used in critical applications. Polymer layered silicate (PLS) nanocomposites often exhibit remarkable improvement in materials properties when compared with the virgin polymer or conventional micro and macro composites. These improvements can include high moduli and tear strength, improved heat resistance and electrical properties, decreased gas permeability, swelling to solvents and flammability.

New Age of Polymer Nanocomposites Containing Dispersed High-Aspect-Ratio Silicate Nanolayers

2008 ◽  
Vol 20 (6) ◽  
pp. 2242-2246 ◽  
Author(s):  
Kenji Tamura ◽  
Shingo Yokoyama ◽  
Chelo S. Pascua ◽  
Hirohisa Yamada
Keyword(s):  
Aspect Ratio ◽  
Polymer Nanocomposites ◽  
High Aspect Ratio ◽  
New Age

Preparation of New Polymer Nanocomposites with High Aspect Ratio Nanolayers by Use of Nonexpandable Fluoromica

2009 ◽  
Vol 38 (1) ◽  
pp. 48-49 ◽  
Author(s):  
Shingo Yokoyama ◽  
Kenji Tamura ◽  
Hirohisa Yamada
Keyword(s):  
Aspect Ratio ◽  
Polymer Nanocomposites ◽  
High Aspect Ratio

Improvement in thermal conductivity of paraffin by adding high aspect-ratio carbon-based nano-fillers

2013 ◽  
Vol 377 (19-20) ◽  
pp. 1358-1361 ◽  
Author(s):  
Hasan Babaei ◽  
Pawel Keblinski ◽  
J.M. Khodadadi
Keyword(s):  
Thermal Conductivity ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Carbon Based
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