Patent ID: 8661917

Claim:
A method for manufacturing a piezoresistive material, comprising: providing a piezoresistive composition comprising: a conductive carbon material selected from a group consisting of multi-wall carbon nanotubes, single-wall carbon nanotubes, carbon nanocapsules, graphene, graphite nanoflakes, carbon black and a combination thereof; a solvent selected from a group consisting of ethyl acetate, butyl acetate, hexane, propylene glycol mono-methyl ether acetate and a combination thereof; a dispersive agent comprising an affinity functional groups containing block polymer solution; an unsaturated polyester selected from a group consisting of ortho-phthalic type unsaturated polyester, iso-phthalic type unsaturated polyester and a combination thereof; and a crosslinking agent selected from a group consisting of ethyl methyl ketone peroxide, cyclohexanone diperoxide, dibenzoyl peroxide, tert-butyl peroxybenzoate and a combination thereof, wherein the conductive carbon material has an amount of 0.1-40 parts by weight relative to 100 parts by a total weight of the unsaturated polyester and the conductive carbon material, the dispersive agent has an amount of 50-70 parts by weight relative to 100 parts by the weight of the conductive carbon material, the crosslinking agent has an amount of 0.1-5 parts by weight relative to 100 parts by the weight of the unsaturated polyester, the solvent has an amount of 10-40 parts by weight relative to 100 parts by the weight of the unsaturated polyester and the solvent; and curing the piezoresistive composition for forming a piezoresistive material.