The cold winter is here, and winter heating has become a top priority. There are many ways of heating, electrical appliances, natural gas, water heating, etc. are relatively common measures. However, with the development of science and technology, a novel indoor painting heating method has appeared, that is, carbon nanometer heating paint.
The working principle of this heating paint is actually very simple, that is, adding graphene/carbon nanotubes into the paint, then thinly coating it on the wall or panel, and finally covering the surface with standard wall decorative paint/paint. The paint can provide 12-24 volts of current through the copper electrode below it, and it can be heated to a certain temperature (it is said that 40°C is no problem) to provide warmth for the room, and this paint is safe and harmless to the human body.
The reason why this coating has such uses is mainly due to the carbon nanomaterials. For example, the conductive threshold of carbon nanotubes is as low as 0.1wt%, while the traditional carbon black is as high as 15wt%. Therefore, carbon nanotubes can achieve the performance of current carbon black-based conductive coatings with a very small amount of addition, avoiding a large amount of inorganic carbon. Negative impact of black addition on paint manufacturability.
For example, OCSiAl, a supplier of high-purity carbon nanotubes, once mentioned in its product promotion that only 0.5% carbon nanotubes are needed to replace the standard conductive carbon additive with a working concentration of about 25% of the total weight of the compound. Vladimir Kravchenko, vice president of development, said: "Compared with carbon black, graphite or metal parts, carbon nanotubes are easier to obtain uniform coating concentrations without affecting their actual performance. It can help manufacturers speed up production and reduce costs, while the final product. performance can also be improved."
It is reported that carbon nanomaterials can be used in almost all types of coatings, including powder coatings, heating films, automotive primers, epoxy and polyurethane coatings, linings and various gel coats, in antistatic coatings, electromagnetic shielding coatings, heavy-duty anti-corrosion coatings, etc. It has significant advantages in the field, and at the same time, it can also use its electrothermal effect, and can also prepare new energy-saving heating and thermal insulation coatings. It has great commercial prospects in new markets such as household floor heating and instrument equipment insulation.
