Graphene-based self-temperature-limiting electrothermal slurry and preparation method and application in electric heating floor system thereof
A graphene-based, electric heating floor technology, applied in electric heating systems, heating systems, applications, etc., can solve the problem that the coating range is limited to one side of the base material, the heat conduction function is not fully utilized, and the heat cannot be transferred to the floor. Surface and other problems, to achieve the effects of excellent mechanical properties, good electrical conductivity and long service life
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Embodiment 1
[0065] Graphene materials were prepared by electrochemically swelling graphite electrodes. The thickness of graphene is 1-3 nm, the lateral dimension is about 10-20 μm, and the crystal structure is complete. See the attached figure 1 a, 1b, graphene microsheets are soft, transparent, well maintained in crystal form, and have excellent electrical and thermal transport properties.
[0066] Take 1 mass part of graphene powder and disperse it in 10 mass parts of water, mechanically stir to form a dispersion, add 10 mass parts of water-based acrylic resin emulsion (resin), 0.2 mass parts of carbon nanotubes, 0.3 mass parts of conductive carbon black, 1 mass part Barium carbonate-based ceramic PTC powder (self-limiting temperature filler), 0.1 mass part of titanium dioxide (functional filler), 0.1 mass part of sodium dodecylbenzenesulfonate (dispersant), 0.05 mass part of polyether modified polydisiloxane Alkane (defoaming and leveling agent), sand milled after stirring for 1 hour, ...
Embodiment 2
[0069] Graphene powder materials are prepared by electrochemically swelling graphite electrodes. The thickness of graphene is 3-5 nm, the lateral dimension is about 30-50 μm, the crystal structure is complete, the graphene microsheets are soft, transparent, and the crystal form is well maintained.
[0070] Take 10 parts by mass of graphene powder and disperse it in 200 parts by mass of water, mechanically stir to form a dispersion, add 50 parts by mass of water-based acrylic resin emulsion (resin), 2 parts by mass of carbon nanotubes, 3 parts by mass of conductive carbon black, 10 parts by mass of Barium carbonate-based ceramic PTC powder (self-limiting temperature filler), 5 parts by mass of non-photocatalyst (functional filler), 0.3 parts by mass of sodium dodecylbenzenesulfonate (dispersant), 0.2 parts by mass of polyether-modified polydisilicate Oxane (defoaming and leveling agent), sand milled after stirring for 3 hours, and finally sieved with 400 mesh to obtain a homogen...
Embodiment 3
[0073] Graphene powder materials are prepared by electrochemically swelling graphite electrodes. The thickness of graphene is 1-5 nm, the lateral size is about 50-100 μm, the crystal structure is complete, the graphene microsheets are soft, transparent, and the crystal form is well maintained.
[0074] Take 20 parts by mass of graphene powder and ultrasonically disperse it in 500 parts by mass of ethanol to form a dispersion, add 50 parts by mass of water-based polyurethane resin emulsion (resin), 3 parts by mass of carbon nanotubes, 5 parts by mass of conductive carbon black, and 20 parts by mass of Barium carbonate-based ceramic PTC powder (self-limiting temperature filler), 1 mass part of magnesium hydroxide (functional filler), 0.5 mass part of sodium dodecylbenzenesulfonate (dispersant), 0.5 mass part of polyether modified poly Siloxane (defoaming and leveling agent), sand milled after stirring for 3 hours, and finally sieved to 300 mesh to obtain a homogeneous graphene el...
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