High-flexibility insulating sheath material for transformer and preparation method thereof

Abstract

The invention discloses a high-flexibility insulating sheath material for a transformer and a preparation method thereof. The high-flexibility insulating sheath material is prepared from 50-70 weight parts of acrylate rubber, 30-40 weight parts of polyurethane rubber, 15-20 weight parts of nylon 66, 10-15 weight parts of di(2-ethylhexyl)-4,5-epoxycyclohexane-1,2-dicarboxylate, 8-12 weight parts of nylon acid dioctyl ester, 5-10 weight parts of chlorinated paraffin, 10-15 weight parts of aluminum hydroxide, 5-10 weight parts of zinc borate, 15-25 weight parts of carbon black N660, 8-12 weight parts of magnesium carbonate, 5-10 weight parts of quartz powder, 10-15 weight parts of nanometer fluorite powder, 4-8 weight parts of mineral oil, 2-3 weight parts of zinc oxide, 1-2 weight parts of calcium stearate, 1-2 weight parts of barium stearate, 1-2 weight parts of an antiager ODA, 2-3 weight parts of an antiager DNP, 1-2 weight parts of a promoter NA-22, 1-2 weight parts of a promoter CZ, and 3-6 weight parts of a composite filling material. The high-flexibility insulating sheath material has good flexibility, high toughness and good stretching and aging resistance, can resist long-term bending motion, has excellent tension resistance, and has excellent performances such as heat resistance, weather resistance, acid and alkali corrosion resistance, electrical insulating property and tear strength.

Description

technical field [0001] The invention relates to a highly flexible insulating sheathing material for transformers and a preparation method thereof, belonging to the technical field of sealing materials. Background technique [0002] The transformer insulating sheath is used for the shielding insulation protection of the surface of the transformer bus bridge tube parent, which can effectively prevent the exposed transformer bus bridge from being accidentally touched by humans, small animals such as birds and animals or foreign objects. Electrical accidents caused by condensation flashover, pollution flashover, and icicle sticky snow, and prevent power outage accidents caused by salt spray, acid rain, and chemical gas corrosion that damage the inlet and outlet lines of transformers. However, due to the low toughness and poor tear resistance of the existing sheath materials, birds are easily damaged when they are bitten and bitten, and are easily cracked when bent, resulting in ...

AI Technical Summary

Problems solved by technology

However, due to the low toughness and poor tear resistance of the existing sheath materials, birds are easily damaged when they are bitten and bitten, and they are easily cracked when bent, resulting in accidents such as short circuits, electric leakage, and power outages, resulting in huge economic losses.

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