Conductive elastomer composition for grounding electrodes (and its variants), grounding extended elastomeric electrode, anode grounded and deep anode ground
The invention relates to rubber industry and electrical protection of metal objects from corrosion, in particular for cathodic protection of underground structures with variable electrical characteristics, such as pipes and cables in Reshetikhin or high-impedance electrolytic environments. The invention relates to a conductive elastomeric compositions for the manufacture of electrodes based on butadiene-nitrile rubber, chloroprene rubber, or mixtures thereof, and mixtures of butadiene-nitrile rubber and butadiene-styrene thermoplastic elastomer filled with carbon-based fillers, in combination with a different target additives (plasticizers, vulcanizing agents, antioxidants, and others), providing for a specific volume resistance of 0.05-0.5 Ohm


Claims
1. Conductive elastomer composition for grounding electrodes, including rubber, carbon black, thiuram, plasticizer, characterized in that it comprises a rubber mixture of nitrile butadiene rubber and chloroprene rubber as a plasticizer dibutyl phthalate, as a carbon black conductive fine carbon black and optionally contains zinc white, burnt magnesia, based paste of calcium naphthenate and probably contains ceresin, stearic acid, sulfur, graphite electrical, antioxidant (product 4010) N-phenyl-N1-cyclohexanediamine-1.4 and ebony dust based on butadiene-nitrile rubber, vulcanized grey in the following ratio, wt.%:On BNR rubber 22,96-37,31Chloroprene rubber (neoprene) 10,43-18,70Dibutyl 8,76-24,9Thiuram to 0.17 to 0.69Magnesium oxide burned 0,09-0,29Zinc white 0,98-1,63Pasta-based calcium naphthenate 2,48 of 5.99Highly dispersed carbon black 20,0-17,34Stearic acid 0,0-0,95Antioxidant -N-phenyl-N1-cyclohexanediamine-1,4 0,0-0,482. Conductive elastomer composition for grounding electrodes, including rubber, thiuram, sulfur, carbon black, plasticizer, characterized in that it contains as rubber on BNR rubber as a plasticizer is dibutyl phthalate as carbon black mixture is finely dispersed conductive carbon black and coarse electroconductive carbon black with respect to their 0,05:19,95-19,95:0.05 and further comprises stearic acid, zinc white, paste-based calcium naphthenate and antioxidant - N-phenyl-N1-cyclohexanediamine-1,4 in the following ratio, wt.%:On BNR rubber 36,4-36,6Thiuram 0,42-0,62Sulfur 0,35-0,55Dibutyl 8,32-charged 8.52Stearic acid 0,6-0,8Zinc white 0,98-1,18Pasta-based calcium naphthenate 5,8-6,0Fine electroconductivecarbon 2,2-43,89Coarse electroconductivecarbon 2,2-43,89Antioxidant -N-phenyl-N1-cyclohexanediamine-1,4 of 0.24 to 0.44Icesi carbon, plasticizer, characterized in that it comprises a rubber mixture on BNR rubber and the best choice of thermoplastic elastomer, as a plasticizer is dibutyl phthalate, as carbon is a mixture of highly dispersed conductive carbon black and coarse electroconductive carbon black at a ratio of about 0.05 to : 19,95 - 19,95 : 0,05, respectively, and further comprises stearic acid, zinc white, paste-based calcium naphthenate and antioxidant - N-phenyl-N1-cyclohexanediamine-1,4 in the following ratio, wt.%:On BNR rubber 32,02-32,22The best choice TPR 4,28-of 4.38Thiuram 0,35-0,55Sulfur 0,3-0,5Dibutyl 8,4-8,6Stearic acid 0,6-0,8Zinc white 0,9-1,1Pasta-based calcium naphthenate 5,8-6,0Fine electroconductivecarbon 2,21-44,0Coarse electroconductivecarbon 2,21-44,0Antioxidant -N-phenyl-N1-cyclohexanediamine-1,4 of 0.24 to 0.444. Conductive elastomer composition for grounding electrodes, including rubber, vulcanizing agent, who as a vulcanizing agent diphenylguanidine, the carbonaceous filler - short-length carbon fiber and also contains stearic acid, zinc white, burnt magnesia in the following ratio, wt.%:Chloroprene rubber 34,21-34,23Diphenylguanidine 0,15-0,17Stearic acid 0,31-0,33Magnesium oxide burned to 2.57 at 2.59Zinc white 3,21-3,23Carbon short-length fiber 59,49-to 59.515. Conductive elastomer composition for grounding electrodes based on rubber, turama, plasticizer, carbon black, characterized in that it is a product of mixing in the mill conductive elastomeric uterine composition composition, wt.%:The NBR 23,05-23,07Ebony dust based on butadiene-nitrile rubber, vulcanized grey 3,83-3,85Antioxidant -N-phenyl-N1-cyclohexanediamine-1,4 from 0.37 to 0.39Ceresin 0,75-0,77Dibutyl cent to 8.85-8,87Electrical graphite 17,23-17,25Fine electroconductivecarbon 30,75-30,77Thiuram of 0.26 and 0.28Magnesium oxide burned 0,18-0, 20Zinc white 1,52 -1,54Pasta-based calcium naphthenate to 2.57 at 2.59and electroconductive ELAS1-cyclohexanediamine-1,4 of 0.24 to 0.44Dibutyl 8,8-9,0Sulfur 0,35-0,55Coarse electroconductivecarbon 45,53-45,73Thiuram 0,4-0,6Stearic acid 0,6-0,8Zinc white 0,98-1,18Pasta-based calcium naphthenate 5,8-6,06. Grounding extended elastomeric electrode containing metal trunk conductors and a working shell containing an elastomeric material, is electrically in contact with it, characterized in that the conductors are made of stranded wire and placed inside the working sheath coaxially along the Central axis of the electrode, and a working shell consists of layers of carbon material in the form of carbon yarns, woven in a roving or ribbon of carbon fabric, applied along the length of the conductors and a flexible sheath of electrically conductive elastomeric composition with a specific volume resistance of 0.05-0.5 Ohm



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