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Motion of ferroparticles inside the polymeric matrix in magnetoactive elastomers
G V Stepanov1, D Yu Borin, Yu L Raikher
1State Scientific Research Institute of Chemistry and Technology of Organoelement Compounds (GNIIChTEOC), Moscow 111123, Russia.
Summary
Smart ferroelastic composites exhibit unique magnetodeformational effects due to the reversible motion of magnetic particles within a polymer matrix. This particle structuring under an external field explains their advanced smart material properties.
Area of Science:
- Materials Science
- Polymer Science
- Magnetism
Background:
- Ferroelastic composites are advanced smart materials.
- They display significant magnetodeformational effects, elastic modulus enhancement, and magnetic shape memory.
Purpose of the Study:
- To investigate the underlying mechanisms of unique properties in ferroelastic composites.
- To model particle structuring in magnetoactive elastomers under external fields.
Main Methods:
- Mechanical testing
- Direct microscopy observations
- Magnetic measurements
Main Results:
- Identified reversible motion of magnetic particles within the polymeric matrix as the cause of observed effects.
- Demonstrated field-induced particle structuring in magnetoactive elastomers.
Conclusions:
- The reversible particle motion is the primary driver for the smart material properties of ferroelastic composites.
- A model for particle structuring under external fields provides insight into composite behavior.
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