Preparation method of insulating material for high-voltage direct current insulated cable

• Main Authors: YE MINGGAO, YE ZHUOJUN
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a preparation method of an insulating material for a high-voltage direct current insulated cable. The insulating material comprises raw materials by weight as follows: 22-32 parts of polypheylene ether resin, 2-9 parts of an elastomer, 6-10 parts of a compatilizer, 30-50 parts of an antioxidant I, 30-36 parts of an ethylene vinyl acetate copolymer, 12-25 parts of polyvinylidene chloride, 22-30 parts of methyl vinyl silicone rubber, 80-90 parts of GNA type neoprene, 60-70 parts of aluminum hydroxide, 20-25 parts of silicone rubber, 15-30 parts of an additive, 9-20 parts of tribasic lead sulfate, 13-19 parts of dibasic lead phosphite, 2.9-6.2 parts of paraffin, 20-30 parts of phthalate, 16-19 parts of nano-montmorillonite, 30-32 parts by mass of a nitrogen and phosphorus flame retardant, 9-20 parts by mass of an antioxidant II, 22-26 parts of a crosslinking agent and 13-26 parts of a vulcanizing agent. The insulating material is convenient to process, the cost is lower, the voltage withs