Anti-125 DEG C-level low smoke halogen free-flame retardant single-core cable insulation rubber for railway locomotive

Abstract

The invention discloses anti-125 DEG C-level low smoke halogen free-flame retardant single-core cable insulation rubber for a railway locomotive. The insulation rubber formulation comprises the following ingredients in parts by weight: 100 parts of cross-linked polyolefin, 2-5 parts of organic peroxide vulcanizer, 1 to 4 parts of sulfur-acid agent and 1 to 4 parts of stabilizer, wherein the cross-linked polyolefin is preferably selected from ethylene-vinyl acetate copolymer EVA-40L-03 produced by DuPont, the organic peroxide vulcanizer is preferably selected from dicumyl peroxide (DCP), the sulfur-acid agent is triallyl isocyanurate (TAIC), and the stabilizer is preferably selected from dibasic lead phosphate. The invention not only has excellent insulation property, but also has excellent weather resistance, ozone resistance, heat-proof aging, acid-base resistance, fuel oil resistance, low smoke zero halogen flame retardant, environment protection, safety and long service life.

Description

technical field

[0001] The invention relates to a cable insulating rubber, in particular to a 125°C-resistant low-smoke, halogen-free, flame-retardant railway locomotive single-core cable insulating rubber. Background technique

[0002] Now with the development of the localization of railway locomotives, the requirements for railway cable products are increasing day by day, and the main safety performance of cables is reflected in the outer layer insulation. The performance of the rubber specified in GB7594 can no longer meet the requirements of the localization of locomotives for the temperature resistance of cables. , environmental protection and environmental protection requirements. The railway market puts forward new requirements for locomotive cables, such as higher temperature resistance, excellent aging performance, mineral fuel oil resistance, acid and alkali corrosion resistance, and long service life. At present, there is no cable insulating rubber that meets mar...