High and low temperature-resistant insulating sheath material for transformer and preparation method thereof

A technology of high and low temperature resistance, insulating sheath, applied in the direction of insulated conductors, insulated cables, rubber insulators, etc., can solve the problems of poor high and low temperature resistance, embrittlement and peeling, economic loss, etc., and achieve good flame retardant effect and good insulation performance. , Excellent effect of high and low temperature resistance

Active Publication Date: 2014-01-15
ANHUI KELIN ELECTRONICS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the existing transformer sheath materials are poor in high and low temperature resistance. They are prone to decomposition at high temperatures, and even ignited. They ar

Method used

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  • High and low temperature-resistant insulating sheath material for transformer and preparation method thereof

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Embodiment Construction

[0012] A high and low temperature resistant insulating sheath material for transformers, made of the following raw materials (kg): Fluorosilicone rubber (FE2802) 80, SG-3 type PVC20, dioctyl maleate 10, diisobutyl nylon acid Ester 8, Magnesium Hydroxide 16, Ammonium Polyphosphate 12, Molybdenum Trioxide 6, Fumed Silica 35, Zinc Oxide 5, Stearic Acid 2, Nano Cerium Oxide 1, Bis(dioctyloxypyrophosphate) B Titanate 1.5, oxidized polyethylene wax 4, brucite powder 12, nano barite 18, nano wollastonite 10, composite filler 5, dicumyl peroxide 0.8, triallyl isocyanuric acid Ester 2, accelerator TMTM1.5, antioxidant OD1, antioxidant MB1;

[0013] The preparation method of the composite filler is as follows: a. Weigh bauxite, sepiolite, illite and kaolin in a weight ratio of 5:4:3:1 and mix them uniformly, calcinate at 510°C for 4h, cool to normal temperature and put Stir in 10% sulfuric acid solution at 1500rpm for 2 hours, filter, wash until neutral, dry, pulverize, and pass throug...

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Abstract

The invention discloses a high and low temperature-resistant insulating sheath material for a transformer and a preparation method thereof. The high and low temperature-resistant insulating sheath material is prepared from 70-90 weight parts of fluorosilicone rubber, 20-30 weight parts of SG-3-type PVC, 10-15 weight parts of dioctyl maleate, 5-10 weight parts of nylon acid diisobutyl ester, 15-20 weight parts of magnesium hydroxide, 10-15 weight parts of ammonium polyphosphate, 4-8 weight parts of molybdenum trioxide, 30-40 weight parts of fumed silica, 4-6 weight parts of zinc oxide, 2-3 weight parts of stearic acid, 1-2 weight parts of nano-cerium oxide, 1-2 weight parts of bis(P,P-bis-ethylhexyl diphosphato)ethanediolato titanate, 3-6 weight parts of oxidized polyethylene wax, 10-15 weight parts of brucite powder, 15-20 weight parts of nano-barite, 8-12 weight parts of nano-wollastonite and 4-6 weight parts of a composite filling material. The high and low temperature-resistant insulating sheath material has excellent high and low temperature resistance, good insulating properties, good physical and mechanical properties, good weathering aging resistance, acid and alkali resistance, radiation resistance and oil resistance, can be used in a temperature range of -60-180 DEG C for a long time, does not deform, embrittle and crack, and is durable.

Description

technical field [0001] The invention relates to a high and low temperature resistant insulating sheathing material for a transformer 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, the existing transformer sheathing materials are poor in high and low temperature resistance. They are prone to decomposition at high temperatures, and even ignited. At ...

Claims

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Application Information

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IPC IPC(8): C08L83/08C08L27/06C08L23/30H01B3/28H01B7/17C08K13/02C08K5/11C08K3/22C08K3/32C08K3/36C08K5/09C08K3/30C08K3/34C08K5/14C08K5/3492B29C35/02
Inventor 周俊徐淑平
Owner ANHUI KELIN ELECTRONICS
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