Electromagnetic modulation of conductance and susceptance in electrical devices based on silicone oil with polypyrrole-magnetite particle composites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F24%3A63580160" target="_blank" >RIV/70883521:28610/24:63580160 - isvavai.cz</a>

Alternative codes found

RIV/70883521:28110/24:63580160

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02073a" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02073a</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4tc02073a" target="_blank" >10.1039/d4tc02073a</a>

Result language

angličtina

Original language name

Electromagnetic modulation of conductance and susceptance in electrical devices based on silicone oil with polypyrrole-magnetite particle composites

Original language description

This study investigates the fabrication and characterization of innovative electrical devices (EDs) subjected to an alternating electric field in the presence of static electric and magnetic fields. The EDs contain suspensions of silicone oil (SO) and micrometric aggregates of polypyrrole nanotubes decorated with various mass fractions of magnetite nanoparticles (PPyM). Our experimental findings and theoretical analyses demonstrate that the conductance and susceptance of these EDs can be coarsely adjusted by altering the mass ratios of magnetite to polypyrrole. Fine control of these electrical properties is achieved through the application of electric and magnetic fields superimposed on the alternating electric field. The findings reveal the dual responsiveness of the EDs at small values of electric and magnetic field intensities. A theoretical model is proposed that provides a qualitative description of the physical mechanisms governing the behavior of the EDs under these field conditions. Thus, the results contribute to advancing the understanding of electromagnetorheological phenomena at the microscale in this type of ED, highlighting the potential of PPyM composites dispersed within an SO matrix, in the development of sophisticated micromachines with dynamically controllable features under varying external conditions. Electrical conductance and susceptance of electrical devices with composite liquids based on silicone oil and polypyrrole-magnetite particles are finely tuned by varying electric and magnetic fields and adjusting magnetite content.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

<a href="/en/project/GA23-07244S" target="_blank" >GA23-07244S: Anisotropic Magnetorheological Elastomers with Controlled Electrical Properties</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Materials Chemistry C

ISSN

2050-7526

e-ISSN

2050-7534

Volume of the periodical

12

Issue of the periodical within the volume

34

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

13596-13608

UT code for WoS article

001281025200001

EID of the result in the Scopus database

2-s2.0-85200468856