Heating pulp material and preparation method thereof
A technology of carbon nanomaterials and raw materials, applied to heating element materials, conductive materials dispersed in non-conductive inorganic materials, conductive coatings, etc., can solve the problems of low conductivity, poor dispersion, high production costs, etc., to improve adhesion , sufficient contact, and good electrical conductivity
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[0024] like figure 1 As shown, in the present invention, a preparation method of a heat-generating paste material includes the following steps:
[0025] S1: Pretreating the carbon nanomaterials at a grinding speed of 200-3000 r / min by a high-speed centrifugal mill to obtain a first raw material; preferably, the carbon nanomaterials include carbon nanotubes and carbon fibers.
[0026] Specifically, the step S1 is specifically implemented by the following steps:
[0027] Mixing carbon nanotubes and carbon fibers according to a preset ratio, and then pre-processing the mixture of carbon nanotubes and carbon fibers for 15-60 minutes with a high-speed centrifugal mill at a grinding speed of 200-3000 rpm to obtain a first raw material . Wherein, the carbon nanotubes include one or more of single-walled carbon nanotubes and multi-walled carbon nanotubes.
[0028] Preferably, some solid abrasive materials can be added to the mixture of carbon nanotubes and carbon fibers. Under the ...
Embodiment 1
[0032] Table 1:
[0033]
[0034] As shown in Table 1, in this example, the carbon nanotubes were put into a high-speed centrifugal mill, and the carbon nanotubes were pretreated for 45 minutes at a grinding speed of 3000 rpm to obtain the first raw material. The raw material and the polymer solution are stirred at a high speed at a speed of 3000 rpm, and then dispersed by ultrasonic waves for 60 minutes to obtain a heat-generating paste material, wherein the ratio of single-walled carbon nanotubes to the polymer solution is: 0.1%, multi-walled carbon nanotubes The ratio with polymer solution is: 1%. The mass fraction of each substance in the polymer solution is 1 part of acetone, 1 part of isopropanol, and 3 parts of high temperature resistant resin. The physical properties of the heat-generating paste material are detected, and its electrical conductivity meets the conductor standard, and the resistivity is 0.1-2 ohm· Meter.
Embodiment 2
[0036] Table 2:
[0037]
[0038] As shown in Table 2, in this example, carbon nanotubes and carbon fibers were put into a high-speed centrifugal mill, and the carbon nanotubes were pretreated for 45 minutes at a grinding speed of 3000 rpm to obtain the first raw material, which was The first raw material and the polymer solution are stirred at a high speed at a speed of 3000 rpm, and then dispersed by ultrasonic waves for 60 minutes to obtain a heating slurry material, wherein the ratio of single-walled carbon nanotubes to the polymer solution is: 0.05%, multi-walled carbon nanotubes The ratio of nanotube to polymer solution is 0.5%, and the ratio of carbon fiber to polymer solution is 0.1%. The mass fraction of each substance in the polymer solution is 1 part of isopropanol and 4 parts of high temperature resistant resin. The physical properties of the heat-generating paste material are detected, and the electrical conductivity meets the conductor standard, and the resist...
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