EVA (ethylene-vinyl acetate) elastomer sheath material for wind power generation torsion-resistant flexible cables and preparation method thereof

Abstract

The invention discloses an EVA (ethylene-vinyl acetate) elastomer sheath material for wind power generation torsion-resistant flexible cables and a preparation method thereof. The EVA elastomer sheath material for wind power generation torsion-resistant flexible cables comprises the following components in parts by weight: 60-70 parts of EVA, 30-40 parts of CPE (chlorinated polyethylene), 20-25 parts of acetylene smoke, 10-15 parts of modified nano SiO2, 30-50 parts of talcum powder, 5-10 parts of antimony pentoxide, 1-2 parts of polytrimethyldihydroquinoline, 10-15 parts of dicyclohexyl phthalate, 2-3 parts of lead stearate, 3-5 parts of disalt-base lead phthalate, 1-2 parts of vinyltriethoxysilane and 6-8 parts of DCP (dicumyl peroxide). The sheath material disclosed by the invention has the advantages of excellent physical and mechanical properties, favorable high / low temperature resistance, favorable oil resistance, favorable solvent resistance, favorable wear resistance, favorable ozone resistance, favorable aging resistance, favorable flame retardancy, low smoke, high flexibility, torsion resistance and the like, is very durable, environment-friendly and pollution-free, and can completely satisfy the requirements for wind power generation flexible cables.

Description

technical field [0001] The invention relates to a sheathing material for cables, in particular to an EVA elastomer sheathing material for twist-resistant flexible cables for wind power generation and a preparation method thereof. Background technique [0002] Wind power is one of the most mature forms of power generation in the field of renewable energy with the most conditions for large-scale development and commercial development. Sustainable development plays an important role in promoting. With the continuous increase of new energy development in our country, the demand for wind energy special cables is increasing, but the cable accessories for wind power generation cannot keep up with the requirements of wind power generation. At present, the wind power generation cables used in the market are not very effective. The main reason is that the sheath material of the wind power generation cables is a polymer crystalline material with plastic properties such as polyethylene...

AI Technical Summary

Problems solved by technology

At present, the wind power generation cables used in the market are not very effective. The main reason is that the sheath material of the wind power generation cables is a polymer crystalline material with plastic properties such as polyethylene or polyurethane, which causes the wind power generation cables to be used outdoors. Natural low-temperature environment cracking, ultraviolet aging and brittle cracking, and physical and mechanical properties of the sheath deteriorate after acid-base corrosion, causing the cable to be scrapped and causing great losses to the user.

Therefore, the weather resistance, physical and mechanical properties, flexibility and oil resistance of the wind power cable sheaths currently on the market need to be improved