Irradiation-resistant, halogen-free and flame-retardant ethylene-propylene cable material and preparation method thereof

Abstract

The invention discloses an irradiation-resistant, halogen-free and flame-retardant ethylene-propylene cable material and a preparation method thereof. The cable material comprises 40-80 parts of polypropylene, 20-40 parts of ethylene propylene rubber, 0.5-1 part of dicumyl peroxide, 1-2 parts of zinc dimethyldithiocarbamate, 5-10 parts of aluminum hydroxide, 3-6 parts of magnesium hydroxide, 2-8 parts of triphenyl phosphate, 6-12 parts of p-dibenyl bisphosphate, 5-10 parts of metal fibers, 3-8 parts of silver fibers, 8-12 parts of glass fibers, 1-4 parts of 2-hydroxy-4-octyloxybenzophenone, 10-12 parts of a plasticizer, 3-6 parts of chlorinated paraffin, 0.5-1 part of an antioxidant, 1-4 parts of a cross-linking agent and 6-10 parts of a coloring agent. The cable material has the advantages of no halogen, good insulating property, good ageing resistance, good flame retardation property, good irradiation resistance, high mechanical strength and simple preparation method.

Description

Technical field [0001] The invention relates to the technical field of cable materials, in particular to a radiation-resistant halogen-free flame-retardant ethylene-propylene cable material and a preparation method thereof. Background technique [0002] The cable is mainly composed of a cable core, an insulation layer and a sheath. The main purpose of the insulation layer and the sheath is to protect the cable core in the cable to ensure normal transmission. The insulation layer and sheath of the cable are collectively referred to as the cable material, so the performance of the cable material directly affects the quality of the cable. Cable materials containing halogen are widely used in the field of power cables because of their excellent insulation and flame retardancy, which solves the problem of poor flame retardancy of traditional cable materials. However, the halogen-containing cable material will produce a lot of smoke when it is burned. A large amount of this smoke can ...

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Problems solved by technology

Halogen-containing cable materials are widely used in the field of power cables due to their excellent insulation and flame retardancy, which solves the problem of poor flame retardancy of traditional cable materials

However, the halogen-containing cable material will produce a lot of smoke when it is burned. Inhaling a large amount of this smoke can cause people to suffocate. Therefore, when a fire occurs, the halogen-containing cable material will increase the difficulty of fire escape and rescue. The raw material is used in the production process. to halogen-containing substances, causing certain poison to the body of producers

In addition, the cable materials used in some special places need to withstand high-intensity radiation, while the radiation resistance of traditional cable materials and halogen-containing cable materials is weak, which will affect the cable under radiation conditions. transmission performance

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