Nano Polymer Composites: Mechanical Strength, Thermal Conductivity and Fractography of Date Seed Ash Reinforced Epoxy Composites

2018 ◽  
Vol 10 (7) ◽  
pp. 850-853
Author(s):  
Savita Singh ◽  
Alok Singh ◽  
Sudhir K. Sharma
Keyword(s):  
Thermal Conductivity ◽  
Mechanical Strength ◽  
Polymer Composites ◽  
Epoxy Composites ◽  
Date Seed

Tensile Properties of Epoxy Matrix Reinforced with Fique Fabric

2020 ◽  
Vol 1012 ◽  
pp. 14-19
Author(s):  
Michelle Souza Oliveira ◽  
Fabio da Costa Garcia Filho ◽  
Fernanda Santos da Luz ◽  
Artur Camposo Pereira ◽  
Luana Cristyne da Cruz Demosthenes ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Polymer Composites ◽  
Natural Fiber ◽  
Volume Fraction ◽  
Fiber Reinforced Polymer ◽  
Epoxy Composites ◽  
Synthetic Fiber ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites

Composite materials are being extensively studied for ballistic armor. Their main advantage is connected to the possibility of deeply reducing weight and costs by maintaining high performances in terms of strength and security. Epoxy composites are reinforced with natural fibers which are replacing other synthetic reinforcement materials. Composites are prepared using polymers as matrix material because of ease of production with different reinforcements. The mechanical strength of the natural fiber reinforced polymer composites has been compared with synthetic fiber reinforced polymer composites and it is found that for achieving equivalent mechanical strength of the material, the volume fraction of the natural fiber should be much higher than synthetic fiber. This work being an experimental study on untreated “as received” fique fabric-reinforced epoxy composites, to demonstrate the potential of this renewable source of natural fiber for use in a number of applications.

Graphene foam-embedded epoxy composites with significant thermal conductivity enhancement

Nanoscale ◽  
2019 ◽  
Vol 11 (38) ◽  
pp. 17600-17606 ◽  
Author(s):  
Zhiduo Liu ◽  
Yapeng Chen ◽  
Yifan Li ◽  
Wen Dai ◽  
Qingwei Yan ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Polymer Composites ◽  
Thermal Transport ◽  
Low Cost ◽  
Three Dimensional ◽  
Thermal Conductivity Enhancement ◽  
Epoxy Composites ◽  
Graphene Foam ◽  
Conductivity Enhancement ◽  
Transport Channels

A facile, low-cost and scalable method is developed to construct three-dimensional thermal transport channels like highways in polymer composites.

Contact Thermal Resistance Between Individual Multi-Wall Carbon Nanotubes

2011 ◽  
Author(s):  
Juekuan Yang ◽  
Scott W. Waltermire ◽  
Yang Yang ◽  
Deyu Li ◽  
Yunfei Chen
Keyword(s):  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Polymer Composites ◽  
Low Cost ◽  
Epoxy Composites ◽  
Materials Properties ◽  
Multi Wall Carbon Nanotubes ◽  
The Past ◽  
Volume Production ◽  
Positive Results

Carbon nanotubes (CNTs), because of their superior mechanical, electrical, and thermal properties and possible low-cost, large volume production, have been projected as promising nanostructure additives in polymer composites to achieve tunable and enhanced materials properties. Transport properties of CNT-polymer composites have been widely studied over the past decade and it is well-accepted that when the added CNTs exceed the percolation limit, the electrical conductivity of CNT-polymer composites can usually increase by several orders of magnitude. However, thermal conductivity measurements present mixed results and even for positive results, the enhancement is much lower than that expected from traditional theories. For example, Biercuk et al. [1] demonstrated that 1 wt% of single-wall CNTs (SWCNTs) in industrial epoxy could increase the thermal conductivity by 125% at room temperature, three-times higher than that from 1 wt% loading of carbon nanofibers. However, similar studies [2] showed that thermal conductivity only increased marginally for multi-wall CNT (MWCNT)-epoxy composites and more surprisingly, the thermal conductivity for SWCNT-epoxy composites was even lower than that of pure epoxy.

Core–shell Cu@rGO hybrids filled in epoxy composites with high thermal conduction

2018 ◽  
Vol 6 (2) ◽  
pp. 257-265 ◽  
Author(s):  
Shaoqing Liu ◽  
Bo Zhao ◽  
Li Jiang ◽  
Yan-Wu Zhu ◽  
Xian-Zhu Fu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Polymer Composites ◽  
Electronic Packaging ◽  
Thermal Conduction ◽  
High Thermal Conductivity ◽  
Epoxy Composites ◽  
Core Shell ◽  
Filled Polymer

3D core–shell Cu@rGO filled polymer composites with high thermal conductivity for advanced electronic packaging techniques.

Study of Transcrystallization in Polymer Composites

1989 ◽  
Vol 170 ◽  
Author(s):  
Benjamin S. Hsiao ◽  
J. H. Eric
Keyword(s):  
Thermal Conductivity ◽  
Free Energy ◽  
Carbon Fiber ◽  
Plasma Treatment ◽  
Polymer Composites ◽  
High Performance ◽  
Interfacial Strength ◽  
Fiber Surface ◽  
Semicrystalline Polymers ◽  
First Case

AbstractTranscrystallization of semicrystalline polymers, such as PEEK, PEKK and PPS, in high performance composites has been investigated. It is found that PPDT aramid fiber and pitch-based carbon fiber induce a transcrystalline interphase in all three polymers, whereas in PAN-based carbon fiber and glass fiber systems, transcrystallization occurs only under specific circumstances. Epitaxy is used to explain the surface-induced transcrystalline interphase in the first case. In the latter case, transcrystallization is probably not due to epitaxy, but may be attributed to the thermal conductivity mismatch. Plasma treatment on the fiber surface showed a negligible effect on inducing transcrystallization, implying that surface-free energy was not important. A microdebonding test was adopted to evaluate the interfacial strength between the fiber and matrix. Our preliminary results did not reveal any effect on the fiber/matrix interfacial strength of transcrystallinity.

Aluminum Borate/Boron Nitride Nanosheet Fibers for Enhancing the Thermal Conductivity of Polymer Composites

2021 ◽  
Vol 4 (2) ◽  
pp. 2136-2142
Author(s):  
Xiao Hou ◽  
Zhenbang Zhang ◽  
Xianzhe Wei ◽  
Yue Qin ◽  
Guichen Song ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Polymer Composites ◽  
Aluminum Borate ◽  
Boron Nitride Nanosheet

An investigation on thermal conductivity of constructal-filler polymer composites

2021 ◽  
Vol 126 ◽  
pp. 105411
Author(s):  
Xiaojian Wang ◽  
Wensheng Kang ◽  
Xiaohu Niu ◽  
Xiaoxue Wang ◽  
Liangbi Wang
Keyword(s):  
Thermal Conductivity ◽  
Polymer Composites
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