Conductive rubber

Abstract

The invention belongs to the field of rubber, and particularly relates to conductive rubber. The conductive rubber comprises components in parts by weight as follows: 40-90 parts of natural rubber, 40-100 parts of silicone rubber, 2-10 parts of nano-zinc oxide, 1-4 parts of conductive particles, 15-50 parts of carbon black N300, 2-5 parts of conductive graphite, 4-15 parts of coumarone resin, 2-10 parts of sulfur, 1-5 parts of an anti-aging agent, 1-5 parts of rosin, 1-6 parts of hydroxyl silicone oil, 1-5 parts of a vulcanizing agent, 1-5 parts of white carbon black, 1-5 parts of simethicone, 0.5-2 parts of tetramethyl thiuram monosulfide, 0.5-2 parts of 4,4-dithiomorpholine and 0.5-2 parts of N-tert-butylbenzothiazole-2-sulphenamide. The conductive rubber has the benefits as follows: the conductive rubber prepared by adopting the formula has good conductivity and larger tensile strength, and can effectively meet requirements of military products and commercial production.

Description

technical field [0001] The invention belongs to the field of rubber, in particular to a conductive rubber. Background technique [0002] Conductive rubber usually means that the volume resistance is within 9 times of 10 ohm centimeters. Since rubber is an excellent insulator, the volume resistance is greater than about 10 times of 10. Conductive rubber is divided into anti-static grade conductive rubber, the volume resistance is between 10 to the 9th power of 10, or even as low as one or two hundred ohms, and it is very difficult to lower it to less than 50 ohm centimeters. The volume resistance of the conductive rubber filled with conductive carbon black can usually be maintained at several thousand ohms. Since a single acetylene carbon black is used in the existing formula, its tensile strength can only reach 12Mpa, which is far from meeting the actual needs. Conductive rubber is used in both military and commercial applications, where its main role is sealing and electr...