ELECTROSTATIC ATTRACTION MEMBER

摘要

PURPOSE:To obtain an electrostatic attraction material capable of holding large attraction force for a long time by laminating a conductive layer wherein a specific amt. of conductive carbon black is uniformly dispersed in a resin compsn. consisting of a specific wt.% of a vinylidene fluoride resin and a specific wt.% of an acrylic ester resin to an insulating layer based on fluoroplastic. CONSTITUTION:An electrostatic attraction member is constituted by laminating a conductive layer wherein 5-60 pts.wt. of conductive carbon black is uniformly dispersed in 100 pts.wt. of a resin compsn. consisting of 65-95wt.% of a vinyliden fluoride resin and 5-35wt.% of an acrylic ester resin to an insulating layer based on fluoroplastic. When the content of the vinylidene fluoride resin in the mixture of the vinylidene fluoride resin and the acrylic ester resin becomes below 65wt.%, the electrostatic attraction member becomes flexible in a film sheet like state and the tensile strength and bending strength thereof are lowered and, when the content of the vinylidene fluoride resin exceeds 95wt.%, the electrostatic attraction member becomes fragile and the bending strength thereof lowers and the irregularity of the electric resistance value thereof becomes large.