125 DEG C irradiation crosslinked low-smoke halogen-free flame-retardant polyolefin cable material for new energy vehicle

• Main Authors: CUI JIUDE, AN XIATIAN, REN JINLING, BU XIAOHUA, WEI SANTU
• Format: Patent
• Language: Chinese; English
• Published: 29.05.2020
• 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 125 DEG C irradiation crosslinked low-smoke halogen-free flame-retardant polyolefin cable material for a new energy vehicle. The material is composed of the following components in parts by weight: 100 parts of polyolefin elastomer, 10-18 parts of ethylene-vinyl acetate copolymer, 30-50 parts of silane modified aluminum hydroxide, 0.5-2 parts of silicone resin, 12-18 parts of silane modified magnesium hydroxide, 3-8 parts of polyethylene wax, 2-4 parts of an antioxidant, 0.5-1.5 parts of a crosslinking agent, 3-5 parts of a styrene-butadiene copolymer, 4-8 parts of polyethylene glycol distearate and 1-3 parts of N-amino phthalimide, wherein the polyolefin elastomer is prepared from 60 to 100 parts by weight of ethylene-octene copolymer, 20 to 50 parts by weight oflinear low-density polyethylene and 10 to 20 parts by weight of ethylene-propylene binary copolymer. Under the thermal aging conditions: IRM902 test oil 168h/100 +/-2 DEG C and 150 DEG C*240h, the retention rate of the tensi