Special cold-resistant and anti-freezing polyethylene cable material for outdoor cables and preparation method therefor

Abstract

The invention discloses a special cold-resistant and anti-freezing polyethylene cable material for outdoor cables and a preparation method therefor. The cable material is characterized by being prepared from the following raw materials in parts by weight: 90-100 parts of polyethylene, 10-15 parts of red phosphorus, 3-5 parts of paraffin, 0.5-1 part of silane coupling agent kh570, 15-25 parts of nano calcium carbonate, 0.8-1.6 parts of polyvinyl alcohol, 2-4 parts of copper powder, 5-8 parts of polystyrene resin, 1-3 parts of zinc borate, 5-10 parts of pentaerythritol stearic amide, 2-3 parts of castor oil, 2-4 parts of triglycol diisocaprylate, 3-5 parts of urea and a proper volume of anhydrous ethanol. According to the special cold-resistant and anti-freezing polyethylene cable material for the outdoor cables and the preparation method therefor, the production process is simple, the process is safe and controllable, and the product performance is high, so that the cable material is suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to a special cold-resistant and frost-resistant polyethylene cable material for outdoor cables and a preparation method thereof. Background technique [0002] Communication and electric power are the key points of national construction. No matter where the development is, the construction of communication and electric power always takes the lead, so the development of communication and electric power is very fast. The development of communication and electric power industry requires the cooperation of various aspects, among which the cable material is one aspect. The general-purpose wire and cable covering materials are mainly plastic and rubber, and the thermoplastic materials for wire and cable only need to have polyvinyl chloride, polyethylene, and polypropylene. , fluoroplastics, chlorinated polyethers and polyamides, among which polyethylene and polyvinyl chloride are widely used...

AI Technical Summary

Problems solved by technology

Polyethylene is a large variety of thermoplastics. It has the characteristics of light weight, non-toxicity, and excellent chemical corrosion resistance. However, polyethylene has a very low oxygen index and is a flammable material. Polyethylene will produce serious melting when it is burned. Dripping behavior, which brings great difficulties to flame retardancy. In addition to being flammable, polyethylene has high volume resistivity and surface resistivity, which makes it very difficult to charge static electricity during processing and use. Difficult to eliminate, the above two shortcomings have brought great safety hazards to the use of polyethylene and reduced the scope of use