Cable sheath insulation material for wind turbine generator system and preparation method thereof

Abstract

The invention discloses a cable sheath insulation material for a wind turbine generator system and a preparation method thereof. The cable sheath insulation material comprises the following raw materials in parts by weight: 93-98 parts of chloroprene rubber CR121, 17-22 parts of chlorinated polyethylene, 13-20 of semi-reinforced furnace black N774, 1-1.8 parts of magnesia, 30-35 parts of mica powder, 1-2 parts of antioxidant MB, 1-2 parts of 2-mercapto benzimidazole, 5-8 parts of polyamide wax micropowder, 1-2 parts of accelerator PZ, 0.8-1 part of Bis(P,P-bis-ethylhexyl diphosphato)ethanediolato titanate, 0.8-1 part of accelerator TMTD, 8-11 parts of oxidized polyethlene wax, 1-3 parts of 4,4'-oxydibenzenesulfonyl hydrazide, 2-4 parts of zinc borate, 4-6 parts of glass frit, 0.8-1 part of isocyanate, 2-3 parts of modified calcium carbonate, 5-6 parts of diantimony trioxide, 4-6 parts of ethylene thiourea and 1-2 parts of triphenyl phosphate. The cable sheath insulation material for a wind turbine generator system produced according to the preparation method has excellent physical performance, stable size and low shrinkage ratio, and the pull strength, tearing strength and resilience performance are greatly improved.

Description

technical field [0001] The invention mainly relates to a rubber sheath material and a preparation method thereof, in particular to a cable sheath insulation material for a wind turbine and a preparation method thereof. Background technique [0002] With the rapid development of China's national economy, it will inevitably lead to a situation in which energy is in short supply, and my country's traditional coal and oil resources are not many, so the development and utilization of renewable energy should be carried out. Wind power is called "white coal in the blue sky" and is an inexhaustible clean energy source. For now, wind power generation is the power generation method with the most mature technology, the most large-scale development conditions and the most commercial development prospects in new energy. In recent years, the development of offshore wind power has further accelerated the development of large-capacity wind turbines. At the end of 2010, the single-click cap...

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Problems solved by technology

[0003] 1. Due to the long-term frequent twisting of the fan cable in a low-temperature environment during use, the metal shielding layer is easily damaged, and the damaged insulation causes partial discharge, which greatly shortens the service life of the cable.

[0004] 2. After the cable is subjected to strong impacts such as tension, pressure, bending, and friction during installation, the mechanical properties of the cable will decline;

[0005] 3. The use of this structure not only increases the outer diameter of the finished cable, resulting in waste of materials, but also limits the bending radius of the cable, and cannot be used for long-term movement.

[0006] Since the above defects cannot meet the needs of modern large-capacity wind turbines for medium-voltage torsion-resistant cables, a new type of medium-voltage torsion-resistant wind power cable is urgently sought to meet the needs of the development of my country's wind power industry.

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