Surface-modified inorganic substance, method for manufacturing same, resin composition, thermally conductive material, and device

A resin composition comprising:

• a surface-modified inorganic substance obtained by performing surface modification on an inorganic nitride by using an aldehyde compound, wherein the inorganic nitride includes aluminum, or the inorganic nitride is boron nitride;
• and
• a monomer having a group selected from the group consisting of an oxetanyl group, an oxiranyl group, and a (meth)acrylate group,
• wherein the aldehyde compound is a compound represented by General Formula I;
• ZZ—XX—CHO General Formula I
• in the General Formula I, ZZ represents a group selected from the group consisting of an amino group, a thiol group, a hydroxyl group, an isocyanate group, a carboxyl group, a carboxylic acid anhydride group, an oxetanyl group, an oxiranyl group, and a (meth)acrylate group, and XX represents a divalent linking group.