Weather-resistant flexible data cable for communication

Abstract

The invention discloses a weather-resistant flexible data cable for communication. A first sheath layer of the flexible data cable wraps the outer surfaces of two copper conductors, and a second sheath layer wraps the outer surfaces of steel wires. The first sheath layer consists of a polyvinyl chloride layer located on the inner side and a thermoplastic polyurethane layer located on the outer side. The thermoplastic polyurethane layer consists of thermoplastic polyurethane elastomer 80-100 parts, low-density polyethylene 10-20 parts, ethylene acrylic ester 8-15 parts, ethylene-butylene copolymer 5-10 parts, silicon dioxide 4-8 parts, butyronitrile compound 8-20 parts, chlorinated polyethylene 5-10 parts, zinc stannate 5-15 parts, magnesium hydroxide 5-12 parts, compound molybdenum smoke suppression agent 2-8 parts, montmorillonite 1-5 parts, calcium-zinc compound stabilizer 1-3 parts, bi (3,5-tert-butyl-4-hydroxycyclohexyl phenyl ketone) thioether 1-3 parts and zinc stearate 2-4 parts. The weather resistance and flame retardant property of the weather-resistant flexible data cable for communication are improved, meanwhile a laying phenomenon is also avoided, the contact surface consistency and bonding fastness of the polyvinyl chloride layer and the thermoplastic polyurethane layer are improved, the performance reliability of a product is improved, and the service life of the product is prolonged.

Description

technical field [0001] The invention relates to a data cable, in particular to a climate-resistant flexible data cable for communication. Background technique [0002] The existing communication data cable sheath has poor insulation performance, is easy to age, and has poor mechanical performance and environmental resistance. There are mainly the following technical problems: (1) When it is required to improve multiple indicators such as insulation performance, weather resistance and flame retardant performance at the same time, it is difficult to take into account at the same time, which often leads to the decline or difficulty in improving some of the indicators; (2) the cable is subjected to When the pulling force is torn apart, the stress points will be concentrated, the cable is easily separated, and the cable core of the cable is easily damaged; (3) The thermal stability and radiation resistance are poor, and the insulation performance, surface wear resistance and surf...

AI Technical Summary

Problems solved by technology

[0002] The existing communication data cable sheath has poor insulation performance, is easy to age, and has poor mechanical performance and environmental resistance

There are mainly the following technical problems: (1) When it is required to improve multiple indicators such as insulation performance, weather resistance and flame retardant performance at the same time, it is difficult to take into account at the same time, which often leads to the decline or difficulty in improving some of the indicators; (2) the cable is subjected to When the pulling force is torn apart, the stress points will be concentrated, the cable is easily separated, and the cable core of the cable is easily damaged; (3) The thermal stability and radiation resistance are poor, and the insulation performance, surface wear resistance and surface hardness are poor. , also needs to be improved

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