scholarly journals Characterization of Physical Properties for Multi-Scale Polymer Composites Under Various Processing Conditions

2012 ◽  
Author(s):  
Anne C. Lederer ◽  
David I. Bigio ◽  
Hugh A. Bruck ◽  
Betel T. Sime ◽  
Harry R. Brown ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Polymer Composites ◽  
Polymer Composite ◽  
Microstructural Evolution ◽  
Processing Conditions ◽  
Thermal And Mechanical Properties ◽  
Structure Property ◽  
Multi Scale

There is great interest in using microscale and nanoscale ingredients as fillers to create composites with enhanced physical properties. To further explore the improvement these fillers offer, a combination of both micro and nano ingredients was used to make a multi-scale polymer composite. Therefore we have engaged in an investigation to see how the physics of mixing these ingredients affects microstructural evolution of the extruded composites, as well as the associated thermal and mechanical properties. This data can then be used to develop fundamental processing-structure-property models of these multi-scale composites across different concentrations of microscale and nanoscale ingredients in order to optimize their development.

scholarly journals Computational characterization of thermal and mechanical properties of single and bilayer germanene nanoribbon

2021 ◽  
Vol 190 ◽  
pp. 110272 ◽  
Author(s):  
Md. Habibur Rahman ◽  
Emdadul Haque Chowdhury ◽  
Didarul Ahasan Redwan ◽  
Sungwook Hong
Keyword(s):  
Mechanical Properties ◽  
Thermal And Mechanical Properties

Effect of graphite and silicon carbide fillers on mechanical properties of PA6 polymer composites

2017 ◽  
Vol 37 (6) ◽  
pp. 547-557 ◽  
Author(s):  
Sekaran Sathees Kumar ◽  
Ganesan Kanagaraj
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Polymer Composites ◽  
Interfacial Adhesion ◽  
Hybrid Composites ◽  
Fracture Morphology ◽  
Tensile Fracture ◽  
Injection Molded ◽  
The Individual

Abstract In this paper, the combined effect of different weight percentages of silicon carbide (SiC) and graphite (Gr) reinforcement on the mechanical properties of polyamide (PA6) composite is studied. Test specimens of pure PA6, 85 wt% PA6+10 wt% SiC+5 wt% Gr and 85 wt% PA6+5 wt% SiC+10 wt% Gr are prepared using an injection molding machine. The tensile, impact, hardness, morphology and thermal properties of the injection molded composites were investigated. The obtained results showed that mechanical properties, such as tensile and impact strength and modulus of the PA6 composites, were significantly higher than the pure PA6, and hybridization with silicon carbide and graphite further enhanced the performance properties, as well as the thermal resistance of the composites. The tensile fracture morphology and the characterization of PA6 polymer composites were observed by scanning electron microscope (SEM) and Fourier transform infrared spectroscopic methods. SEM observation of the fracture surfaces showed the fine dispersion of SiC and Gr for strong interfacial adhesion between fibers and matrix. The individual and combined reinforcing effects of silicon carbide and graphite on the mechanical properties of PA6 hybrid composites were compared and interpreted in this study. Improved mechanical properties were observed by the addition of small amount of SiC and Gr concurrently reinforced with the pure PA6. Finally, thermogravimetric analysis showed that the heat resistance of the composites tended to increase with increasing silicon carbide and graphite content simultaneously.

Recent Development in Multiscale Simulation of Mechanical Properties at Material Interface

2010 ◽  
Vol 146-147 ◽  
pp. 491-494
Author(s):  
Ning Bo Liao ◽  
Miao Zhang ◽  
Rui Jiang
Keyword(s):  
Mechanical Properties ◽  
Multiscale Model ◽  
Multiscale Simulation ◽  
Material Interfaces ◽  
Material Interface ◽  
Multi Scale ◽  
Simulation Techniques ◽  
Hierarchical Nature ◽  
Feature Scale

For nanoscale devices and structures, interface phenomena often dominate their overall thermal behavior. The feature scale of material interfaces usually originate from nanometer length and present a hierarchical nature. Considering to the limitations of the continuum mechanics on the characterization of nano-scale, the multiscale model featuring the interface could be very important in materials design. The purpose of this review is to discuss the applications of multiscale modeling and simulation techniques to study the mechanical properties at materials interface. It is concluded that a multi-scale scheme is needed for this study due to the hierarchical characteristics of interface.

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