SEBS

SEBS

Styrene-Ethylene-Butylene-Styrene (SEBS) is a flexible thermoplastic elastomer that combines the elasticity of rubber with the processability of plastic.

Polymer

A polymer is a large molecule made of many repeating units called monomers. Many plastics and rubbers are polymers.

Block Copolymer

A block copolymer is a polymer made of two or more different blocks of repeating molecules that are chemically connected together.

Triblock Copolymer

A triblock copolymer contains three connected polymer blocks. In SEBS, the structure is Polystyrene–Ethylene/Butylene–Polystyrene (PS-EB-PS).

Polystyrene (PS)

The rigid outer blocks of SEBS that provide strength, shape, and mechanical stability.

Ethylene-Butylene (EB)

The soft middle block of SEBS that provides flexibility, elasticity, and stretchability.

Thermoplastic Elastomer (TPE)

A material that behaves like rubber but can be melted, reshaped, and recycled like a plastic.

Composite Material

A material made by combining two or more materials to create improved mechanical, electrical, or physical properties.

Iron Filler

Tiny iron particles added to SEBS to modify its mechanical and electrical properties.

Particle Size

The diameter of each iron particle. This study investigated 2 µm, 10 µm, and 75 µm particles.

Micrometer (µm)

One-millionth of a meter (0.000001 m). A human hair is approximately 70 µm thick.

Volume Percent (vol%)

The percentage of the composite's total volume occupied by the iron filler.

Mechanical Properties

Properties that describe how a material responds to forces such as stretching, twisting, or compression.

Electrical Properties

Properties that describe how a material behaves when exposed to an electric field.

Modulus

A measure of a material's stiffness. A higher modulus means the material is more resistant to deformation.

Storage Modulus

A measure of how much energy a material stores when it is deformed. It indicates the elastic stiffness of a material.

Rheology

The study of how materials flow and deform when forces are applied.

Melt Rheology

The study of how a material flows while in its molten state, determining how easily a material can be processed during manufacturing.

Tensile Testing

A mechanical test where a material is pulled apart to measure its strength, stiffness, and elasticity.

Tensile Modulus

A measure of how resistant a material is to stretching.

Compression Testing

A mechanical test where a material is squeezed to evaluate its resistance to compressive forces.

Compressive Modulus

A measure of how resistant a material is to being compressed.

Torsional Testing

A mechanical test where a material is twisted to evaluate its resistance to rotational forces.

Torsional Modulus

A measure of how resistant a material is to twisting.

Dielectric Material

A material that does not conduct electricity well but can store electrical energy.

Dielectric Permittivity

A measure of how well a material stores electrical energy when placed in an electric field.

Pressure Sensor

A device that converts applied pressure into an electrical signal that can be measured.

Wearable Electronics

Flexible electronic devices that can be comfortably worn on the body to monitor health or movement.

Biomedical Devices

Medical technologies used to monitor, diagnose, or treat health conditions.

Soft Electronics

Flexible electronic systems made from stretchable materials instead of rigid components.

Pressure-Sensing Applications

Future technologies that use changes in electrical properties to detect applied pressure.

Light Mineral Oil

A plasticizer added to SEBS to soften the material and improve its flexibility and processability.

Plasticizer

A substance added to a polymer to increase flexibility and reduce stiffness.

Filler Concentration

The amount of filler material added to a composite. In this study, 0, 10, and 30 vol% iron were investigated.

Elasticity

The ability of a material to return to its original shape after being stretched or compressed.

Stiffness

A material's resistance to deformation. Higher stiffness corresponds to a higher modulus.

Permittivity

A material's ability to store electrical energy within an electric field.

Microstructure

The internal arrangement of particles and polymer phases within a material that influences its properties.

Physical Crosslinks

The rigid polystyrene domains in SEBS that hold the material together without permanent chemical bonds.

Multifunctional Material

A material designed to perform multiple functions, such as providing both mechanical support and electrical response.

Capacitive Sensor

A sensor that detects pressure by measuring changes in capacitance caused by deformation of a dielectric material.

Elasticity

The ability of a material to return to its original shape after being stretched or compressed.