PRESSURE-SENSITIVE VARIABLE RESISTANCE ELECTROCONDUCTIVE RUBBER

PURPOSE:The titled electroconductive rubber whose electric conductivity can vary in proportion to a pressure applied on electrodes arranged on the surface, prepared by forming a molding of a metallic particle-containing electroconductive rubber composition so as to give thereto a surface of a specif...

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1. Verfasser:	AKAKABE MICHIO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	PURPOSE:The titled electroconductive rubber whose electric conductivity can vary in proportion to a pressure applied on electrodes arranged on the surface, prepared by forming a molding of a metallic particle-containing electroconductive rubber composition so as to give thereto a surface of a specified form. CONSTITUTION:100pts.wt. rubber material (e.g., silicone rubber or NBR) is mixed with about 200-400pts.wt. metallic particles (particles of nickel, silver or stainless steel) of an average particle diameter of about 20-200mu. The resulting rubber composition is molded into a plate-like body having a surface which is a pockmarked rough surface 2 [a 10-point average roughness (JIS-B-0601) of about 7-50muRz] and has a number of about 1-100mu-high protrusions 3 to obtain a pressure-sensitive variable resistance electroconductive rubber. This rubber is used by sandwiching it between electrode plates 4, 4. It can deform according to a pressure P applied on the electrodes and continuously vary its electroconductivity.