Tensile temperature-resistant mica tape

Abstract

A tensile temperature-resistant mica tape comprises a base material, and a reinforcing layer and an organic silicon resin layer which are formed on the surface of the base material, and is characterized in that the base material comprises a first mica paper layer and a second mica paper layer, and the reinforcing layer comprises a glass fabric layer, an aluminum nitride foil layer and a PET film layer. One side of the first mica paper layer is bonded with the glass fabric layer through the organic silicon resin layer, the other side of the mica paper layer is bonded with the aluminum nitride foil layer through the organic silicon resin layer, the other side of the aluminum nitride foil layer is bonded with the second mica paper layer through the organic silicon resin layer, and the other side of the mica paper layer is bonded with the PET film layer through the organic silicon resin layer. According to the mica tape, the aluminum nitride foil and PET film composite layer is added on a traditional mica tape, so that the electrical insulation property and the high temperature resistance of the original mica tape are reserved, and the mica tape is more excellent in mechanical property, higher in toughness and resistant to puncture, friction and high temperature.

Description

TECHNICAL FIELD

[0001] The utility model relates to mica insulation material production technical field, especially relate to a kind of tensile temperature-resistant mica tape. BACKGROUND

[0002] Mica has complete chemical inertness and non-flammability, most importantly, it has the characteristics of high voltage resistance, corona resistance and radiation resistance, and has the characteristics of non-toxic, odorless, aging resistance, corrosion resistance, etc.

[0003] Mica tape products are widely used in industrial electrical, household appliances, aerospace, petrochemical, metallurgical subway, wind power nuclear power, high-speed locomotive and other fields, and some products have been used in Shenzhou series and Chang'e No. 1 aerospace engineering, Three Gorges power generation and other engineering.

[0004] With the rapid development of new energy and electric vehicles, mica tape has a wide application in new energy and electric vehicles, but the mechanical properties, tensile strength, rigidity and toughness of the original mica tape cannot meet the requirements of new energy and electric vehicles. SUMMARY

[0005] The utility model aims at overcoming the shortcomings of prior art, providing a kind of mica tape with good mechanical properties and high tensile strength to meet the needs of modern industrial development, especially to meet the needs of new energy and electric vehicle development.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:

[0007] A kind of tensile temperature-resistant mica tape, including base material and reinforcing layer and organic silicon resin layer formed on the surface of base material, characterized in that: the base material includes first mica paper layer, second mica paper layer, the reinforcing layer includes glass fiber cloth layer, aluminum nitride foil layer and PET film layer, one side of the first mica paper layer is bonded with glass fiber cloth layer through organic silicon resin layer, the other side of the mica paper layer is bonded with aluminum nitride foil layer through organic silicon resin layer, the other side of the aluminum nitride foil layer is bonded with second mica paper layer through organic silicon resin layer, the other side of the mica paper layer is bonded with PET film layer through organic silicon resin layer.

[0008] Preferably, the first mica paper layer and the second mica paper layer of the base material are "a chloron fiber mica paper".

[0009] Preferably, the thickness of the first mica paper layer (1) and the second mica paper layer (2) is 0.12mm±0.012mm, and the weight is 95g±5g / ㎡.

[0010] Preferably, the organic silicon resin is 988 silicone resin and 922 silicone resin.

[0011] Preferably, the glass cloth is a glass cloth of type EW35, with specifications of 28*12, a gram weight of 0.039, and a tensile strength of > 90MPa.

[0012] Preferably, the aluminum nitride foil layer is an aluminum nitride that is a covalent compound, belongs to a hexagonal system, has a crystal structure of a galena type, is white or off-white, has good mechanical properties, and has a toughness better than that of Al2O3 ceramic and high temperature resistance and corrosion resistance.

[0013] Preferably, the PET film is made of polyethylene terephthalate as raw material, has excellent mechanical properties, high toughness, puncture resistance, friction resistance, and high temperature resistance.

[0014] The utility model discloses the beneficial effect is:

[0015] On the traditional mica tape, by increasing the aluminum nitride foil and PET film composite layer, not only the original mica tape's electrical insulation performance, high temperature resistance are reserved, and make mica tape mechanical property more excellent, toughness is higher, puncture resistance, friction resistance, high temperature resistance.

[0016] The molding base material uses the patent product "chlorofiber mica paper and production method thereof" (patent number: ZL 201310164277.3) of the company, and the tensile strength of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of the utility model;

[0018] In the drawing: 1 - first mica paper layer, 2 - second mica paper layer, 3 - glass cloth layer, 4 - aluminum nitride foil layer, 5 - PET film layer. DETAILED DESCRIPTION

[0019] The utility model will be further explained in connection with the drawings.

[0020] Referring to Figure 1 A tensile temperature-resistant mica tape, including base material and the reinforcing layer and organic silicon resin layer shaped on the surface of base material, the base material includes first mica paper layer, second mica paper layer, the reinforcing layer includes glass cloth layer, aluminum nitride foil layer and PET film layer, one side of the first mica paper layer is bonded glass cloth layer through organic silicon resin layer, the other side of the mica paper layer is bonded aluminum nitride foil layer through organic silicon resin layer, the other side of the aluminum nitride foil layer is bonded second mica paper layer through organic silicon resin layer, the other side of the mica paper layer is bonded PET film layer through organic silicon resin layer.

[0021] Firstly, the first mica paper layer is coated with silicone resin and then compounded with glass fiber cloth on one side, and then the other side of the first mica paper layer is bonded with an aluminum nitride foil layer through a silicone resin layer, the other side of the aluminum nitride foil layer is coated with silicone resin and then bonded with a second mica paper layer, the other side of the second mica paper layer is bonded with a PET film layer through a silicone resin layer, and then the mica tape is sent into a drying machine for drying, and finally, the mica tape is formed by calendering.

Claims

1. A tensile temperature-resistant mica tape comprising a base material and a reinforcing layer and a silicone resin layer formed on the surface of the base material, characterized in that: The base material comprises a first mica paper layer (1) and a second mica paper layer (2), the reinforcing layer comprises a glass cloth layer (3), an aluminum nitride foil layer (4) and a PET film layer (5), one side of the first mica paper layer (1) is bonded with the glass cloth layer (3) through an organic silicon resin layer, the other side of the first mica paper layer (1) is bonded with the aluminum nitride foil layer (4) through an organic silicon resin layer, the other side of the aluminum nitride foil layer (4) is bonded with the second mica paper layer (2) through an organic silicon resin layer, and the other side of the second mica paper layer (2) is bonded with the PET film layer (5) through an organic silicon resin layer.

2. A tensile and temperature resistant mica tape according to claim 1, characterized in that: The first mica paper layer (1) and the second mica paper layer (2) of the base material are "a chloron fiber mica paper".

3. A tensile and temperature resistant mica tape according to claim 2, characterized in that: The thickness of the first mica paper layer (1) and the second mica paper layer (2) is 0.12mm±0.012mm, and the weight is 95g±5g / m2.

4. The tensile and temperature resistant mica tape of claim 1, wherein: The organic silicon resin is 988 silicon resin and 922 silicon resin.

5. The tensile and temperature resistant mica tape of claim 1, wherein: The glass cloth is an EW35 type glass cloth with a specification of 28×12, a gram weight of 0.039 and a tensile strength of ≥90MPa.

6. The tensile and temperature resistant mica tape of claim 1, wherein: The aluminum nitride of the aluminum nitride foil layer (4) belongs to a hexagonal system and has a crystal structure of a galena type, and is white or off-white.

7. The tensile and temperature resistant mica tape of claim 1, wherein: The PET film is made of polyethylene terephthalate as a raw material.

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