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Composite insulation paper containing tencel fiber used for transformer

A technology of tencel fiber and composite insulation, which is applied in the field of transformers to achieve the effects of improving insulation performance, good adhesion, and improving flame retardancy

Inactive Publication Date: 2016-02-24
TONGLING SANJIA TRANSFORMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using inorganic fillers to modify insulating paper can obtain insulating paper with better performance, but there are few researches on this aspect at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A composite insulating paper for transformers containing tencel fibers, prepared from the following raw materials in parts by weight (kg): nano-titanium dioxide 13, phenolic resin 2, pulp board 500, sodium carboxymethyl cellulose 1, carbon nanotubes 2 , Tencel fiber 3, aluminum metaphosphate 1.3, dimethyl sulfoxide 0.3, barium stearate 0.4, cristobalite powder 0.6, appropriate amount of deionized water.

[0014] The composite insulating paper for transformers containing tencel fibers is prepared by the following specific steps:

[0015] (1) Dry nano-titanium dioxide and carbon nanotubes in an oven at 100°C for 30 minutes, add them to 0.5Wt% silane coupling agent kh550 absolute ethanol solution after cooling, and then reflux the solution to condense, take it out and bake dry milling for use;

[0016] (2) Mix the phenolic resin with a solid content of 15% and the product prepared in step (1) evenly, then heat it to 80°C and stir for 0.5h, keep it at a constant temperatur...

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Abstract

The invention discloses composite insulation paper containing tencel fibers used for a transformer. The composite insulation paper is prepared from the following raw materials in parts by weight: 13-15 parts of nano-titanium dioxide, 2-3 parts of phenolic resin, 500-550 parts of pulp boards, 1-1.3 parts of sodium carboxymethylcellulose, 2-3 parts of carbon nano tube, 3-4 parts of tencel fibers, 1.3-1.5 parts of aluminum metaphosphate, 0.3-0.4 part of dimethyl sulfoxide, 0.4-0.5 part of barium stearate, 0.6-0.8 part of cristobalite powder, and a proper amount of deionized water. The composite insulation paper is simple in preparation method, low in cost, good in product stability and long in service life, has excellent performance of all aspects, can serve as insulating materials of transformers, motors and the like, and has good application prospect.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to composite insulating paper for transformers containing tencel fibers. Background technique [0002] Insulating paper is widely used as insulating material for equipment such as motors, cables, capacitors and transformers, and is also the main component material of insulating materials such as laminated products, composite materials and prepreg materials. Due to the special use of insulating paper, it is required to have some characteristics different from other paper types, mainly including mechanical properties, electrical properties and thermal stability. Moreover, due to the different environments in which various types of electrical equipment are used, such as motors operating under hot and humid conditions, motors in chemical plants that are often exposed to high concentrations of corrosive chemical media, and motors operating under radioactive radiation, the insulating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/52H01B19/00H01F27/32
Inventor 李新满
Owner TONGLING SANJIA TRANSFORMER
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