Dielectric elastomer and manufacturing method thereof, and stretchable capacitor and manufacturing method thereof

A method for manufacturing a dielectric elastomer, the method comprising:

• dielectric elastomer, the method comprising:
• preparing a co-solvent;
• preparing a base source by mixing the co-solvent with a polymer precursor;
• preparing a dielectric elastomer source by mixing the base source with nanoparticles;
• and
• preparing a dielectric elastomer in which a polymer formed from the polymer precursor surrounds the nanoparticles by coating and curing the dielectric elastomer source on a support,
• wherein adjacent nanoparticles form a cluster,
• the co-solvent includes ethyl alcohol (EtOH) and dichloromethane (DCM), and
• greater than 15 wt % and less than 20 wt % of barium titanate (BaTiO3) is provided as the nanoparticles.

A method for manufacturing a dielectric elastomer, the method comprising:

• dielectric elastomer, the method comprising:
• preparing a co-solvent;
• preparing a base source by mixing the co-solvent with a polymer precursor;
• preparing a dielectric elastomer source by mixing the base source with nanoparticles;
• and
• preparing a dielectric elastomer in which a polymer formed from the polymer precursor surrounds the nanoparticles by coating and curing the dielectric elastomer source on a support,
• wherein adjacent nanoparticles form a cluster,
• the coating is performed in a rotation atmosphere of greater than 250 rpm and less than 1000 rpm for greater than 20 seconds and less than 1 minute, and
• the curing is performed at greater than 50° C. and less than 100° C. for greater than 30 minutes and less than 2 hours.

A dielectric elastomer comprising:

• nanoparticles;
• and
• a polymer surrounding the nanoparticles,
• wherein adjacent nanoparticles form a cluster,
• a capacitance is maintained upon stretching,
• the capacitance is increased upon pressurization, and
• a gauge factor (GF) is 0.

A method for manufacturing a stretchable capacitor, the method comprising:

• preparing a co-solvent;
• preparing a base source by mixing the co-solvent with a polymer precursor;
• preparing a dielectric elastomer source by mixing the base source with nanoparticles;
• preparing a dielectric elastomer including a cluster formed from adjacent nanoparticles by coating and curing the dielectric elastomer source on a support;
• detaching the dielectric elastomer from the support;
• and
• preparing a stretchable capacitor by arranging substrates on both sides of the dielectric elastomer,
• wherein a capacitance is maintained upon stretching,
• the capacitance is increased upon pressurization, and a gauge factor (GF) is 0.

A stretchable capacitor comprising:

• a dielectric elastomer including nanoparticles and a polymer surrounding the nanoparticles;
• and
• substrates arranged on both sides of the dielectric elastomer,
• wherein adjacent nanoparticles form a cluster in the dielectric elastomer,
• a capacitance is maintained upon stretching,
• the capacitance is increased upon pressurization, and
• a gauge factor (GF) is 0.