Irradiation-crosslinked halogen-free flame-retardant photovoltaic cable, and preparation method and application thereof

Abstract

The invention discloses an irradiation-crosslinked halogen-free flame-retardant photovoltaic cable, and a preparation method and application thereof. The photovoltaic cable comprises a conductive core wire, an insulation layer and a sheath layer. The insulation layer and sheath layer are respectively prepared from the following raw materials: 100 parts of polyolefin resin, 5-15 parts of compatilizer, 40-100 parts of compound flame retardant, 1-3 parts of lubricant, 0.5-2.5 parts of antioxidant, 1-2.5 parts of sensitizer, 0.5-2 parts of modified silicone and 3-5 parts of titanium white. The preparation method comprises the following steps: 1) preparing the insulation layer cable material; 2) preparing the sheath layer cable material; and 3) carrying out coextrusion on the conductive core wire, insulation layer cable material and sheath layer cable material, and carrying out irradiation crosslinking. The photovoltaic cable product has the advantages of excellent flame retardancy, no halogen, environment friendliness, high / low temperature resistance, ultraviolet resistance, mold resistance, damp heat resistance, salt spray resistance, high color stability, excellent mechanical properties, excellent weather resistance, long service life, simple production technique and low production cost, and can be widely used for photovoltaic industry.

Description

technical field [0001] The invention relates to a radiation cross-linked halogen-free flame-retardant photovoltaic cable and a preparation method and application thereof, belonging to the technical field of photovoltaic cables. Background technique [0002] Since 2003, my country's photovoltaic industry has grown rapidly, and now it has become the world's largest producer of photovoltaic cell components, but more than 90% of the products are sold abroad. From January 1, 2006, my country began to implement the Renewable Energy Law, and the national ministries and local governments 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 constantly working on key materials and key technologies. By 2020, the installed capacity of photovoltaic power generation in my country is likely to exceed 30-50 million kilowatts, and the c...

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Problems solved by technology

[0004] 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 degradation, and its service life is short.

[0005] The Chinese patent with the publication number CN101295562B discloses a method for manufacturing cables 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

[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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