A kind of infrared heating film and preparation method thereof
An electrothermal film and infrared film technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve problems such as potential safety hazards, uncontrollable infrared radiation bands of infrared electrothermal films, etc.
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[0031] see figure 1 , figure 1 It is a flowchart of a preferred embodiment of a method for preparing an infrared electric heating film according to the present invention, as shown in the figure, which includes steps:
[0032] S10. Select resins, conductive materials, and infrared radiation materials within a predetermined infrared wavelength range according to requirements;
[0033] S20, first heating the resin to form a binder, then mixing the conductive material and the infrared radiation material with the binder respectively and calendering to prepare a conductive film layer and an infrared film layer;
[0034] S30. Lay several conductive film layers, several infrared film layers, and a second substrate on the surface of the first substrate in sequence, and heat-press and seal to form an infrared electric heating film. The side of the first substrate in contact with the conductive film layer or / At least two conductive strips are provided on the side of the second substra...
Embodiment
[0055] As we all know, infrared rays in the wavelength range of 6-14um have many good health care effects on the human body, and are called "life rays". The human body can tolerate a temperature of 40 degrees Celsius for a long time, and the temperature should be set according to this when it is close to the skin. The preparation method of the infrared electric heating film for medical care specifically includes:
[0056] 1) Under the condition of 40 degrees Celsius, scan the alternative electrothermal film preparation materials, the conductive carbon fiber has good infrared emissivity in the range of 2.5~16um, especially 6.2~14um is better; the conductive graphite is in the range of 2.5~16um All have good infrared emissivity, preferably in the range of 2.5~8um, so conductive fiber and conductive graphite can be used as both conductive materials and infrared radiation materials; EVA hot melt adhesive, infrared absorption spectrum scanning result: 6.75 ~6.92um has 40% infrared...
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