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Preparation and Application of Flame Retardant Recyclable Insulation Modified Materials, Insulation Parts

A modified material and insulating varnish technology, which is applied to organic insulators, plastic/resin/wax insulators, polyester coatings, etc., can solve the problems of unrecyclable production efficiency, non-flammability of insulating parts, heavy weight, etc., and improve leakage current Tracking index, reduced water absorption, and improved mechanical properties

Active Publication Date: 2017-07-18
JIANGSU NARI TURBOSTAR ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the shortcomings of currently used epoxy resin insulation parts such as non-flame retardancy, brittleness, heavy weight, non-recyclability and low production efficiency, so as to benefit energy saving, environmental protection and safety, the purpose of the present invention is to replace epoxy resin and provide a mechanical Performance, processing performance, insulation performance, flame retardant properties of recyclable flame retardant insulation modified materials, the insulation devices manufactured by it are used in medium and high voltage electrical equipment

Method used

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  • Preparation and Application of Flame Retardant Recyclable Insulation Modified Materials, Insulation Parts
  • Preparation and Application of Flame Retardant Recyclable Insulation Modified Materials, Insulation Parts
  • Preparation and Application of Flame Retardant Recyclable Insulation Modified Materials, Insulation Parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] According to the formula of insulating modified materials: Weigh 20.0kg of PA6 resin, 3.3kg of microencapsulated red phosphorus, and 0.1kg of additives, pre-mix for about 10 minutes, add to the feeding port of the twin-screw extruder, and initially melt at 250°C; add glass 10.0kg of fibers were melt-extruded, cooled, dried and pelletized to make granular modified materials. The modified material is pre-dried before use, and the treatment conditions are: 110°C, 6-8h. The modified material is injected into related products in the mold of the injection molding machine. The injection molding conditions are: zone 1, 250±10°C; zone 2, 245±10°C; zone 3, 245±10°C; nozzle, 255±10°C, Mold temperature, 70~80℃; back pressure 15~20MPa.

[0025] The relevant electrical performance tests were carried out on the insulating parts of PA6 modified materials, and the results are as follows:

[0026]

[0027]

[0028] Note: This test is tested by Guilin Electric Science Research Ins...

Embodiment 2

[0030] According to the formula of insulating modified materials: Weigh 20.0kg of PA66 resin, 3.3kg of microencapsulated red phosphorus, and 0.1kg of additives, pre-mix for about 10 minutes, add to the feeding port of the twin-screw extruder, and initially melt at 275°C; add glass 10.0kg of fibers were melt-extruded, cooled, dried and pelletized to make granular modified materials. The modified material is pre-dried before use, and the treatment conditions are: 110°C, 6-8h. The modified material is injected into related products in the mold of the injection molding machine. The injection molding conditions are: zone 1, 270±10°C; zone 2, 285±10°C; zone 3, 285±10°C; nozzle, 285±10°C, Mold temperature, 70~80℃; back pressure 15~20MPa.

Embodiment 3

[0032] Spray the mixed liquid containing A resin, B resin and xylene on the surface of the injection molded part in Example 1, and pre-cure at 50°C for 60 minutes, and then perform secondary curing at 160°C for 5 hours to form an insulating varnish coating with a thickness of 50 ~150μm, to obtain insulating parts with better electrical properties.

[0033] After the surface of the insulating part of the PA6 modified material is sprayed, the relevant electrical performance test is carried out, and the test results in the first and third examples are compared: the invented flame-retardant recyclable insulating material and the preparation process of the insulating part can be applied to medium-voltage equipment. In the manufacture of insulating devices, the treatment of insulating varnish on the surface of insulating parts can improve the insulating performance to a certain extent.

[0034]

[0035]

[0036] Note: This test is tested by Guilin Electric Science Research Ins...

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Abstract

The invention relates to the technical field of the production of insulating parts applied to various cabinets under an indoor medium voltage (10-20KV), particularly to a recoverable flame-retardant insulating modified material which is superior in electrical properties, such as creepage trace, and is high in mechanical strength, and preparation and application of insulating parts. A polymer with favorable thermoplasticity and favorable electrical properties, namely polyamide (nylon 6 or nylon 66), is adopted as matrix resins, and glass fibers, a fire retardant and an auxiliary agent are added in the polyamide; a melt blending modification method is adopted, so that the organic compound insulating modified material is formed; an insulating part can be formed through injection molding; after the surface of the insulating part is coated with an appropriate coating and is processed by a solidification technology, a part with a better electrical insulation property can be prepared, so that the used safety of insulating parts is improved; in addition, the insulating parts produced from the novel insulating modified material disclosed by the invention are flame-retardant, recoverable, light in weight, and high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of production of insulating devices for various cabinets with medium voltage (10-20KV) in the room, and in particular to a flame-retardant, recyclable, tracking-tracking and other excellent electrical properties and high mechanical strength flame-retardant recyclable insulating modified materials , Preparation and application of insulating parts. Background technique [0002] The continuous advancement of the national smart grid construction and the strategy of giving priority to the development of the distribution network have greatly increased the market demand for medium-voltage primary equipment. At present, most of the insulating parts in these devices use epoxy resin as the base material. At present, domestic enterprises use epoxy resin to complete the insulation protection of the solid insulation materials in primary power distribution equipment such as SF6 ring network cabinets, solid insulation rin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L77/06C08K9/10C08K3/02C08K7/14C08J7/04C09D167/02C09D161/32H01B3/30
CPCC08J7/0427C08J2377/02C08J2377/06C08K3/02C08K7/14C08K9/00C08K9/10C08K2003/026C08L2201/02C08L2203/20C09D167/02H01B3/305C08L77/02C08L77/06C08L61/32
Inventor 张明祖顾在春戴永正赵金荣董坚王鹏
Owner JIANGSU NARI TURBOSTAR ELECTRIC
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