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High temperature resistant electrical soft composite material and manufacturing method thereof

A composite material and soft technology, applied in the field of electrical soft composite materials, electrical soft composite materials and their manufacturing, can solve the problems of low crosslink density, poor thermal adhesion and heat resistance, poor product quality and performance

Active Publication Date: 2012-05-30
四川东材新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low crosslinking density of this polyurethane adhesive, the heat aging resistance of the adhesive system is only 130-155 grades, its use is limited, and the thermal adhesion and heat resistance of soft composites are poor, especially for polyisophthalylene M-phenylene diamide fiber paper / polyethylene terephthalate film / poly-m-phenylene isophthalamide fiber paper soft composite material, poly-m-phenylene isophthalamide fiber paper / polyamide When the imide film / polym-phenylene isophthalamide fiber paper soft composite product is used, the product will appear delamination, foaming and flow in the thermal adhesion test at 200 °C for 48 hours or 220 °C for 3 hours. In the case of glue, the quality and performance of the product are poor

Method used

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  • High temperature resistant electrical soft composite material and manufacturing method thereof
  • High temperature resistant electrical soft composite material and manufacturing method thereof
  • High temperature resistant electrical soft composite material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0072] A high temperature-resistant polyester film polyaramid fiber paper soft composite material (i.e. a kind of electrical soft composite material), which is sequentially composed of polyaramid fiber paper layer, adhesive layer, polyester film layer, adhesive layer, polyaramid fiber Composition of paper layers.

[0073] The polyaramid fiber paper layer is polym-phenylene isophthalamide fiber paper (thickness is 0.05mm~0.13mm);

[0074] The polyester film layer is polyethylene terephthalate film (thickness is 0.025mm~0.35mm);

[0075] The adhesive composition of the adhesive layer is composed of hydroxyl-terminated polyethylene adipate polyurethane (D101 component A produced by Sichuan Dongcai Technology Group Co., Ltd.), isocyanate prepolymer synthesized by TDI and glycerin (Sichuan Dongcai Technology D101 B component produced by the Group Co., Ltd.), polyglycidyl modified diuretyl resin and acetone are mixed. See Table 2 for the amount of each component (weight, in kilogr...

Embodiment 7～12

[0082] A high temperature resistant polyimide film polyaramid fiber paper soft composite material (i.e. a kind of electrical soft composite material), which is sequentially composed of polyaramid fiber paper layer, adhesive layer, polyimide film layer, adhesive layer, Composed of polyaramid fiber paper layers.

[0083] The polyaramid fiber paper layer is polym-phenylene isophthalamide fiber paper (thickness is 0.05mm~0.25mm);

[0084] The polyimide film layer is a film processed by pyromellitic dianhydride and diaminodiphenyl ether synthetic resin (thickness is 0.025mm~0.25mm);

[0085] The adhesive composition of the adhesive layer is composed of hydroxyl-terminated polyethylene adipate polyurethane (D101 component A produced by Sichuan Dongcai Technology Group Co., Ltd.), isocyanate prepolymer synthesized by TDI and glycerin (Sichuan Dongcai Technology D101 B component produced by the Group Co., Ltd.), polyglycidyl modified diuretyl resin and acetone are mixed. The dosage ...

Embodiment 13～18

[0094] An electrical soft composite material (two-layer electrical soft composite material), consisting of: a first synthetic fiber paper layer, a first film layer, and a first adhesive layer for bonding the first film layer and one side of the first synthetic fiber paper layer composition.

[0095] The first adhesive layer is composed of an adhesive composition, and consists of 115 to 230 parts by weight of a hydroxyl-terminated prepolymer, 30 to 83 parts by weight of a multifunctional isocyanate prepolymer, and 70 parts by weight of a polyglycidyl modified diuretyl resin , mixed with 150 to 300 parts by weight of solvent;

[0096] The hydroxyl-terminated prepolymer is a polyurethane adhesive 101 glue A component;

[0097] The polyfunctional isocyanate prepolymer is the second component of the polyurethane adhesive 101;

[0098] Described solvent is any in acetone, ethyl acetate, toluene or xylene;

[0099] Component and weight (kg) composition of described adhesive compos...

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Abstract

The invention discloses a high temperature resistant electrical soft composite material and a manufacturing method thereof. The invention is characterized in that: the high temperature resistant electrical soft composite material is a two-, three- or four-layer high temperature resistant electrical soft composite material comprised of a thin film layer, an adhesive layer and a synthetic fiber paper layer; the adhesive layer is prepared by mixing 115 to 230 weight parts of hydroxy-terminated prepolymer, 30 to 83 weight parts of multifunction isocyanate prepolymer, 70 weight parts of polyglycerol-modified ureido-ene resin, 150 to 300 weight parts of solvent; after an adhesive is applied on a thin film or synthetic fiber paper, the thin film or synthetic fiber paper is delivered to a drying channel to pass through an area, an area II at and an area II at 50 to 120 DEG C respectively and at a vehicle speed of 2 to 20 m / min to remove the solvent; then the thin film or synthetic fiber paper is cooled first to room temperature and then to 80 DEG C and is combined with the synthetic fiber paper or the thin film by hot rolling; the combined product is wounded and heated to 140 DEG C from room temperature for aging for 8 to 72 hours; and thus, the product is obtained. The product of the invention, which has high performance, can be used for motor element insulation, inter-winding insulation, gasket insulation and air-immersed transformer interlayer insulation.

Description

technical field [0001] The invention belongs to layered products and a manufacturing method thereof, and relates to an electrical soft composite material and a manufacturing method thereof. In particular, it relates to a class of slot insulation materials for motor and electrical products—an electrical soft composite material with excellent thermal stability and its production that requires no delamination, no foaming, and no glue flow in the 220°C, 3h hot-state adhesive test. method. The prepared electrical soft composite material product is especially suitable as a material for electric motor slot insulation, turn-to-turn insulation, liner insulation and dry-type transformer interlayer insulation. Background technique [0002] In the prior art, the adhesive composition of electrical flexible composite materials is generally composed of 20 to 100 parts by weight of polyester polyurethane prepolymer, 10 parts by weight of multifunctional isocyanate prepolymer, with or witho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/60H01B17/66H01B19/00C09J175/04B32B7/12B32B27/02B32B37/12
Inventor 李杰霞李建学伍尚华江扬黄玉鑫
Owner 四川东材新材料有限责任公司
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