Low smoke halogen-free flame retardant material applicable to photovoltaic cable and manufacturing method thereof

Abstract

The invention discloses a low smoke halogen-free flame retardant material applicable to a photovoltaic cable, and a manufacturing method of the material. The manufacturing method is simple in process and easy for industrial popularization and production, the produced material is a low-smoke environment-friendly product, is free of halogen, heavy metal or other substances harmful to the environment, and has good surface property, good insulation and excellent water resistance, acid-base corrosion resistance and high / low temperature resistance. 3MPa water resistance tests prove that the photovoltaic cable prepared from the material disclosed by the invention has the insulation resistance retention rate being greater than 98%; after the photovoltaic cable is soaked in 5% saline water at 90 DEG C for 14 days, the physical and mechanical property retention rate e of the cable material is greater than 80%; the test if rapid aging for 100 hours at 185 DEG C shows that the physical and mechanical property retention rate of the cable material is greater than 65%, and the extrapolation prolonged service life can be 25 years.

Description

technical field [0001] The invention relates to a low-smoke, halogen-free flame-retardant material and a manufacturing method thereof, in particular to a low-smoke, halogen-free, flame-retardant material suitable for photovoltaic cables in shallow water or humid environments such as shallow beaches, tidal flats, fish ponds, and lakes, and a manufacturing method thereof . Background technique [0002] With the publication of "Several Opinions of the State Council on Promoting the Healthy Development of the Photovoltaic Industry", the average annual installed capacity of photovoltaic power generation in the country will be about 10GW from 2013 to 2015. By 2015, the total installed capacity will reach more than 35GW. "Several Opinions of the State Council on Promoting the Healthy Development of the Photovoltaic Industry" also pointed out that the domestic application market is underdeveloped and the technological innovation ability is not strong in terms of actively developing...

AI Technical Summary

Problems solved by technology

Some shallow beaches, tidal flats, fish ponds, lakes and other areas have high requirements on the water resistance, salt spray resistance, sunlight aging resistance and other weather resistance of the cables of photovoltaic power stations, while the cable materials selected for ordinary cross-linked cables have water resistance, acid resistance Poor alkalinity, long-term wet conditions or long-term immersion in water, the outer sheath and insulating layer of the cable are prone to permeation or even cracking, so it cannot meet the use in wet environments or water

To meet the water resistance requirements of ordinary cables, the cable structure must be improved, such as adding a water resistant protective layer, which will greatly increase the production cost and use cost of the cable, and is not suitable for promotion.

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