Dielectric spectroscopy of SiO2, ZnO - nanoparticle loaded epoxy resin in the frequency range of 20 Hz to 2 MHz

2017 ◽  
Author(s):  
Sanketsinh Thakor ◽  
V. A. Rana ◽  
H. P. Vankar
Keyword(s):  
Epoxy Resin ◽  
Dielectric Spectroscopy ◽  
Zno Nanoparticle ◽  
Frequency Range

scholarly journals Reduction of mechanical interactions with the use of a rubber composite

2019 ◽  
Vol 97 ◽  
pp. 02029
Author(s):  
Przemysław Palacz ◽  
Maciej Major ◽  
Izabela Adamczyk
Keyword(s):  
Epoxy Resin ◽  
Polyethylene Terephthalate ◽  
Building Materials ◽  
Damping Properties ◽  
Frequency Range ◽  
Dynamic Interactions ◽  
Rubber Composite ◽  
Used Car ◽  
Composite Samples

The paper presents the results of research on the reduction of mechanical interactions of the composite produced from components resulting from the recycling of used car tires and plastic bottles (i.e. polyethylene terephthalate, colloquially called PET). Composite samples for testing were made with three thicknesses of mixtures rubber granules and PET flakes. The whole was joined together with an epoxy resin and formed into the shape of discs, which were then subjected to mechanical interactions to determine the damping properties depending on the thickness of the considered samples. The samples were subjected to evaluation on the author’s measuring stand. Obtained results of the research indicated that the developed composite well suppresses mechanical interactions resulting from dynamic interactions involving vibrations or vibrations in the analyzed frequency range. The developed composite can be used as a contribution to use in building materials that reduce mechanical interactions.

Single-Layer and Double-Layer Microwave Absorbers Based on Graphene Nanosheets/Epoxy Resin Composite

NANO ◽  
2017 ◽  
Vol 12 (07) ◽  
pp. 1750089 ◽  
Author(s):  
Dandan Min ◽  
Wancheng Zhou ◽  
Yuchang Qing ◽  
Fa Luo ◽  
Dongmei Zhu
Keyword(s):  
Absorption Band ◽  
Epoxy Resin ◽  
Microwave Absorption ◽  
Double Layer ◽  
Graphene Nanosheets ◽  
Resin Composite ◽  
Single Layer ◽  
Frequency Range ◽  
Absorption Properties ◽  
Microwave Absorption Properties

Graphene nanosheets/epoxy resin (GN/EP) composites with enhanced microwave absorption properties were prepared. The influence of GNs content on the electromagnetic and microwave-absorbing properties of single-layer GN/EP composites was investigated in the frequency range of 2–18[Formula: see text]GHz. A novel double-layer microwave absorber by combining absorbers with different contents of graphene was designed to achieve absorbers with wide absorption band and optimal microwave absorption. The calculated microwave absorption properties indicated that broader absorption band was obtained by the double-layer GN/EP composites. Reflection loss (RL) values below [Formula: see text]5[Formula: see text]dB can be obtained in the frequency range of 4.4–18[Formula: see text]GHz by the double-layer GN/EP composites at thickness of 3.9[Formula: see text]mm.

Temperature dependent dielectric relaxation of ionic liquid ([bmim][BF4])/alcohol binary mixtures

2017 ◽  
Vol 41 (17) ◽  
pp. 9330-9337 ◽  
Author(s):  
Man Yang ◽  
Liyan Ma ◽  
Kongshuang Zhao
Keyword(s):  
Ionic Liquid ◽  
Dielectric Relaxation ◽  
Binary Mixtures ◽  
Dielectric Spectroscopy ◽  
Spectroscopy Study ◽  
Frequency Range ◽  
Temperature Dependent

A dielectric spectroscopy study on the binary mixtures of the ionic liquid (IL) 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) and four kinds of alcohols as a function of temperature was carried out over a frequency range of 100 MHz to 20 GHz.

Dielectric spectroscopy of epoxy resin with and without nanometric alumina fillers

2009 ◽  
Vol 16 (5) ◽  
pp. 1481-1488 ◽  
Author(s):  
P. Maity ◽  
P. Poovamma ◽  
S. Basu ◽  
V. Parameswaran ◽  
Nandi Gupta
Keyword(s):  
Epoxy Resin ◽  
Dielectric Spectroscopy
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