Conductive film and preparation method thereof, heatable mica tube and manufacturing method thereof

A conductive film and mica tube technology, applied in the direction of heating element material, heating element shape, etc., can solve the problems of short service life, overheating, and safety hazards of heating elements, and achieve the effect of fast heating speed and uniform heating area.

Inactive Publication Date: 2020-02-14
苏州苏绝电工材料股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] A hair dryer is a small household appliance widely used in modern life. Its heating element is a heating element with a metal wire as a heating element. The metal wire is made into a spiral shape and then wound on a support made of mica board. The heating element When in use, it is often overheated due to the failure of the cold air effect, causing the metal wire to be blown instantly. Therefore, this type of heating element not only has a short service life, but also has potential safety hazards.

Method used

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  • Conductive film and preparation method thereof, heatable mica tube and manufacturing method thereof
  • Conductive film and preparation method thereof, heatable mica tube and manufacturing method thereof
  • Conductive film and preparation method thereof, heatable mica tube and manufacturing method thereof

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preparation example Construction

[0040] The invention further discloses a preparation method of the above-mentioned conductive film, which comprises mixing, stirring and drying the mica powder, metal powder and adhesive.

[0041] The present invention further provides a kind of heat-generating mica tube (for its structure see Figure 4 ), including tubular mica paper and the above-mentioned conductive film solidified on the tubular mica paper.

[0042] refer to figure 1 As shown, the present invention also provides a method for manufacturing the above-mentioned heat-resistant mica tube, comprising the following steps:

[0043] s1: To prepare an adhesive, by weight, take 20-25 parts of silicone resin with a solid content of 50-52%, and 75-80 parts of an organic solvent, and stir evenly at room temperature to obtain a silicone adhesive, wherein the solid content is the net content of the insoluble resin that removes solvent in silicone resin glue;

[0044] s2: prepare a conductive solution, take 45-60 parts ...

Embodiment 1

[0066] Take the following ingredients and mix them evenly:

[0067] 45 parts of 200-mesh mica powder, 40 parts of 300-mesh iron powder, and 15 parts of adhesive. Among them, the adhesive is prepared by stirring 20 parts of silicone resin and 80 parts of industrial alcohol at room temperature, spread on mica paper and dry to obtain a conductive film.

Embodiment 2

[0069] Get the following component raw materials and stir and mix evenly:

[0070] 45 parts of 200-mesh mica powder, 40 parts of 300-mesh iron powder, and 15 parts of adhesive. Among them, the adhesive is made by stirring 23 parts of silicone resin and 77 parts of industrial alcohol at room temperature, smeared on mica paper and dried to obtain a conductive film.

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Abstract

The invention discloses a conductive film. The conductive film comprises raw materials, by weight, 45-60 parts of mica powder, 30-40 parts of metal powder and 15-10 parts of adhesive, wherein the adhesive comprises components, by weight, 20-25 parts of organic silicon resin adhesive with the solid content of 50-52% and 75-80 parts of organic solvent. The invention further discloses a preparation method of the conductive film. The invention discloses a heatable mica tube. The mica tube comprises mica paper and the conductive film cured on the mica paper. The invention discloses a manufacturingmethod of heatable mica tube. The mica tube is characterized in that structural arrangement of the mica tube is changed, so resistivity of the mica tube can meet application conditions of heating elements of small household appliances such as electric blowers.

Description

technical field [0001] The invention belongs to the technical field of new material application, and in particular relates to a conductive film and a preparation method thereof, a heat-generating mica tube and a manufacturing method thereof. Background technique [0002] The mica tubes produced in the prior art are divided into two categories based on different binders. One is to impregnate a single piece of mica paper with a silicone resin or epoxy resin binder, and after drying and removing the solvent to roll it into shape, It is obtained by sending it into an oven for curing. The other type is obtained by applying a single sheet of mica paper to an inorganic binder, drying and rolling it into shape, and then sending it into an oven for curing. But no matter which type of mica tube is made, it has no heating function and can only be used as insulation in hair dryers or other fields. [0003] A hair dryer is a small household appliance widely used in modern life. Its heat...

Claims

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Application Information

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IPC IPC(8): H05B3/44H05B3/12
CPCH05B3/12H05B3/44
Inventor 韦钧
Owner 苏州苏绝电工材料股份有限公司
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