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.
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[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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