150 DGE C irradiation crosslinking low-smoke halogen-free antiflaming polyolefin sheathing compound for locomotive thin-walled line as well as preparation and application thereof

A technology of polyolefin sheathing and irradiation, which is applied in the direction of conductors, electrical components, circuits, etc., and can solve the problems of no industrialization, difficult control of extrusion process, and inability to extrude with ordinary extrusion equipment.
CN102295794BActive Publication Date: 2013-04-10SHANGHAI KAIBO SPECIAL CABLE FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI KAIBO SPECIAL CABLE FACTORY
Publication Date
2013-04-10

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Abstract

The invention relates to a 150 DGE C irradiation crosslinking low-smoke halogen-free antiflaming polyolefin sheathing compound for a locomotive thin-walled line. The sheathing compound is prepared from the following raw material components in parts by weight: 60-90 parts of substrate, 10-40 parts of compatilizer, 50-100 parts of halogen-free flame retardant, 5-30 parts of halogen-free antiflamingauxiliary, 2-4 parts of antioxidant, 0.5-2 parts of lubricant, 1-4 parts of crosslinking sensitizing agent and 1-5 parts of powder dispersing agent. The 150 DGE C irradiation crosslinking low-smoke halogen-free antiflaming polyolefin sheathing compound has the advantages that the cost is relatively low, the whole system dose not contain halogen, and the sheathing compound has scraping resistance,oil resistance, low fuming amount in burning and the like and completely meets the requirement of a cable for the 150 DGE C locomotive thin-walled line.
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Description

technical field

[0001] The invention relates to a polymer material for wires and cables, in particular to a 105°C irradiation cross-linked low-smoke, halogen-free, flame-retardant polyolefin sheath material suitable for thin-walled wires of locomotives. Background technique

[0002] The intelligence and automation of rail transit rolling stock is increasing day by day, which requires the installation of a large number of various cables. However, the available space on rail transit rolling stock is limited, so there is a limit to the thickness of the insulation layer of some cables. The thin-wall wire is designed to meet such application requirements, and the wall thickness of the thin-wall wire insulation material is usually around 0.25mm.

[0003] The speed of modern rail transit locomotives is getting higher and higher, and it has exceeded 300km / h at present. The locomotive runs at such a high speed for a long time, and severe vibration is unavoidable, and at this time, f...

Claims

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