Halogen-free, flame-retardant and environment-friendly photovoltaic cable as well as preparation method and application thereof

Abstract

The invention discloses a halogen-free, flame-retardant and environment-friendly photovoltaic cable as well as a preparation method and an application thereof. The photovoltaic cable comprises a conductive core wire, an insulated layer and a sheath layer, wherein the insulated layer and the sheath layer are prepared from raw materials as follows: 100 parts of polyolefin resin, 10-20 parts of an ethylene-vinyl acetate-maleic anhydride terpolymer, 30-70 parts of a phosphorus-nitrogen fire retardant, 5-20 parts of a flame-retardant synergist, 1-3 parts of a lubricant, 0.5-2.5 parts of an antioxidant, 1-2.5 parts of a sensitizing agent, 3-10 parts of a light stabilizer and 3-7 parts of titanium dioxide. The preparation method of the cable comprises steps as follows: 1) a cable material of the insulated layer is prepared; 2) a cable material of the sheath layer is prepared; 3) the conductive core wire, the cable material of the insulated layer and the cable material of the sheath layer are co-extruded and subjected to irradiation crosslinking. The photovoltaic cable has excellent flame retardance, weather resistance and mechanical performance, is resistant to high and low temperatures, ultraviolet rays, mildews, dampness, heat and salt mist, long in service life, low in cost, halogen-free and environment-friendly and adopts a simple production process.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant environment-friendly photovoltaic cable and a preparation method and application thereof, belonging to the technical field of photovoltaic cables. Background technique [0002] Solar energy is the cleanest, safest and most reliable energy source in the future, and the photovoltaic industry related to it is becoming another explosive development industry after IT and microelectronics industry in the world. In the past ten years, my country's photovoltaic industry has developed rapidly and has become the world's largest producer of photovoltaic cell modules. Since January 1, 2006, my country began to implement the Renewable Energy Law, and the national ministries and local governments have successively introduced measures such as financial subsidies and scientific and technological support to promote the growth of the photovoltaic industry and photovoltaic application market. The industry is also c...

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Problems solved by technology

[0004] The Chinese patent with the publication number CN101295562B discloses a method for manufacturing a cable for solar photovoltaic power generation equipment. Irradiation cross-linking treatment, the production process must go through two extrusions and two irradiations, the production process is too complicated, and the production cost and technical cost are high

[0005] The Chinese patent with the publication number CN 101845174A discloses a solar photovoltaic cable sheath material and cable. The prepared cable is resistant to high and low temperatures and has good flame retardancy, but its weather resistance is poor, it is prone to aging and degradation, and its service life is short.

[0006] To sum up, the existing photovoltaic cables cannot be popularized and used on a large scale either because their performance cannot meet the actual needs, or because the production process is complicated and the cost is high.

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