Highly-dielectric, elastic structure and a touch sensor including the same

A highly-dielectric, elastic structure, comprising:

• an elastic body that is highly-dielectric and comprises:
• a polymer matrix that comprises 1000 parts by weight of a polydimethylsiloxane (PDMS) base and 100 parts by weight mg of a PDMS curing agent, and has a tensile strength of 0.1 to 10 MPa;
• and 22.4 parts by weight of carbon black that is a dielectric material and a conductive filler, that is surface-treated with octadecyltrimethoxysilane (ODTMS) in an amount of at least 0.707 mmol per 22.4 parts by weight of the carbon black, and that is dispersed in the polymer matrix and cured;
• and an adhesive electrode that is adhesive and stretchable, that is disposed on the body, and that comprises:
• a polymer adhesive comprising a 500 parts by weight of a thermosetting silicone-based polymer adhesive including a curable polymer and a curing agent;
• and
• a conductive filler comprising 1500 parts by weight of silver particles and 4000 parts by weight of a carbonaceous material that is a multi-walled carbon nanotube that are dispersed in the polymer adhesive and cured.