High frequency electromagnetic interference shielding response of mixtures and multilayer films based on conducting polymers

2000 ◽  
Vol 88 (1) ◽  
pp. 513-518 ◽  
Author(s):  
J. Joo ◽  
C. Y. Lee
Keyword(s):  
Conducting Polymers ◽  
Electromagnetic Interference ◽  
High Frequency ◽  
Multilayer Films ◽  
Electromagnetic Interference Shielding

Electromagnetic interference shielding efficiency of polyaniline mixtures and multilayer films

1999 ◽  
Vol 102 (1-3) ◽  
pp. 1346-1349 ◽  
Author(s):  
C.Y. Lee ◽  
H.G. Song ◽  
K.S. Jang ◽  
E.J. Oh ◽  
A.J. Epstein ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
Multilayer Films ◽  
Electromagnetic Interference Shielding

scholarly journals Review of electromagnetic interference shielding materials fabricated by iron ingredients

2019 ◽  
Vol 1 (5) ◽  
pp. 1640-1671 ◽  
Author(s):  
Vineeta Shukla
Keyword(s):  
Conducting Polymers ◽  
Electromagnetic Interference ◽  
Dielectric Materials ◽  
Carbonaceous Materials ◽  
Electromagnetic Interference Shielding ◽  
Insulating Polymers

Iron with carbonaceous materials, conducting polymers, dielectric materials or insulating polymers is reviewed.

scholarly journals Conducting Polymeric Composites Based on Intrinsically Conducting Polymers as Electromagnetic Interference Shielding/Microwave Absorbing Materials—A Review

2021 ◽  
Vol 5 (7) ◽  
pp. 173
Author(s):  
Bluma Guenther Soares ◽  
Guilherme M. O. Barra ◽  
Tamara Indrusiak
Keyword(s):  
Conducting Polymers ◽  
Electromagnetic Interference ◽  
Electromagnetic Shielding ◽  
Human Beings ◽  
Shielding Effectiveness ◽  
Electromagnetic Interference Shielding ◽  
Preparation Methods ◽  
Microwave Absorbing Materials ◽  
Microwave Absorbing ◽  
Intrinsically Conducting Polymers

The development of sophisticated telecommunication equipment and other electro-electronic devices resulted in a kind of electromagnetic pollution that affects the performance of other equipment as well as the health of human beings. Intrinsically conducting polymers (ICP), mainly polyaniline and polypyrrole, have been considered as promising candidates for applications in efficient electromagnetic interference shielding (EMI) due to their ease of preparation, light weight, good conductivity and corrosion resistance. One of the important advantages of these materials is the capability to interact with the EM radiation through both absorption and reflection mechanisms thus enlarging the field of application. In this context, this review article describes a recent overview of the existing methods to produce intrinsically conducting polymers and their blends for electromagnetic shielding application. Additionally, it highlights the relationship between preparation methods reported in the literature with the structure and properties, such as electrical conductivity, electromagnetic shielding effectiveness (EMI SE), complex permittivity and permeability of these materials. Furthermore, a brief theory related to the electromagnetic mechanism and techniques for measuring the microwave absorbing properties are also discussed.

Medical Building Materials of Structural Properties and Electromagnetic Interference Shielding in the Quartz Crystal Plane Coated Ni Based Thin Film

2014 ◽  
Vol 599-601 ◽  
pp. 67-76
Author(s):  
Fei Shuo Hung
Keyword(s):  
Thin Film ◽  
Electromagnetic Interference ◽  
High Frequency ◽  
Electromagnetic Waves ◽  
Building Materials ◽  
Electromagnetic Shielding ◽  
Shielding Effect ◽  
Coating Film ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding

Medical use quartz components for electromagnetic shielding materials research topics very rarely, therefore, intend to systematic development of coated quartz glass materials. The considerations for against electromagnetic waves (Electromagnetic Interference Shielding, EMI), one conductive coating film is required. The anti-high-frequency electromagnetic waves also need magnetic coating film. The thin film is translucent with a poor crystallinity, must be heat-treated to have good crystallization and conductivity, and therefore finds the feasible of Ni-based coating and interface effects also have the academic importance. This program is to deposit Ni-based thin film on different quartz planes (Ni/SiO2), and explores the effect of heat treatment on the structure. That contains crystalline characteristics (doping concentration: the Ni-base matrix doping Fe, 10at%~ 50at.%), optical properties and electrical conductivity. Finally, the electromagnetic shielding effect (EMI) of the coating structure is assessed. So, the application data for the characteristics of interface layer and anti-electromagnetic (EMI) properties are obtained. building materials extended to the health care system materials systems. The results show that Sn-40Al-xNi film increased the electromagnetic interference (EMI) shielding after annealed. For the Sn-40Al-10Ni films with higher Ni atomic concentration, the low frequency EMI shielding could be improved. For the sputtering films the annealed treatment not only had higher electric conductivity but also increased the high frequency EMI shielding.

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