SOFT CONDUCTIVE MATERIAL AND PRODUCTION METHOD OF THE SAME, AS WELL AS TRANSDUCER USING SOFT CONDUCTIVE MATERIAL, CONDUCTIVE TAPE MEMBER, FLEXIBLE WIRING BOARD, ELECTROMAGNETIC WAVE SHIELD

摘要

PROBLEM TO BE SOLVED: To provide a soft conductive material which is excellent in followability to an extending and contracting substrate and of which the electric resistance scarcely increases even in extension, and a production method of the same.SOLUTION: A soft conductive material is formed by dispersing a conductive agent including at least one of graphene and flaky graphite in a matrix including a polymer formed by amide bonding or imide bonding of a polycyclic aromatic component with an oligomer component and having a glass transition temperature of 20°C or less. A production method of the soft conductive material has: a polymer synthesizing step to synthesize the polymer formed by amide bonding or imide bonding of the polycyclic aromatic component with the oligomer component by polymerizing a polycyclic aromatic compound with an oligomer having a terminal modified with an amino group; a conductive coating material preparing step to prepare the conductive coating material by adding the conductive agent including graphite powder to a polymer solution formed by dissolving the polymer in an organic solvent and dispersion treating such that the graphite is thinned; and a curing step to apply the conductive coating material to a substrate and cure the conductive coating material.SELECTED DRAWING: Figure 6