Why can titanium nanopolymer coatings prevent scaling

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This post was last edited by Wang Wei2 on 2024-6-9 at 10:36. Why can titanium nanopolymer coatings prevent scaling? On rough surfaces, they increase the resistance to fluid flow, reducing the flow velocity and increasing the thickness of the near-wall flow layer; this leads to the formation of more scaling nuclei, which facilitates the deposition and growth of dirt. The titanium nanopolymer coating has a very high surface smoothness due to the filling of tiny nanoparticles, and its thin near-wall flow layer makes scaling less likely. The unique magnetic properties and chemical structure of titanium nanopolymers result in an oil-loving and water-repelling surface; this allows dirt particles to be shaped and arranged neatly, preventing the formation of hard deposits caused by interlaced dirt molecules ； On the other hand, it repels dirt particles, preventing them from adhering to the surface of the coating, thereby achieving anti-scaling functionality. Those who have worked with water treatment using electric or magnetic fields to prevent scaling know that when water is treated with such fields, the ability of calcium carbonate crystals to adhere to surfaces is temporarily reduced, which prevents scaling from forming on the heat transfer surfaces of heat exchangers. When treated with an electric or magnetic field, water does not absorb any pollutants, and its chemical composition remains unchanged. The physical properties of water treated with electric or magnetic fields remain essentially unchanged; for example, its boiling point, freezing point, and colligative properties (the degree of influence by solute concentration) do not change, nor do its density, viscosity, and sensitivity to temperature. Additionally, water’s heat absorption and heat transfer capabilities remain unchanged ； Water’s ability to dissolve, absorb substances, and achieve mutual solubility also remains unchanged. However, the scaling substances in water change from forming hard scales to creating non-adherent flocs. The scale on the coating also forms non-adherent flocs, which clearly demonstrates that titanium nanopolymers enable the coating to generate special magnetic energy, providing an effective anti-scaling effect. In the Shengli Oilfield, injection pipes at a depth of 3,300 meters typically accumulate 3–6 mm of scale per year, along with severe pitted corrosion. After using titanium-nanopolymer-coated injection pipes for anti-corrosion and anti-scale protection, these pipes were removed after 20 months without any signs of scaling or corrosion. The dirt deposition rate and dirt coefficient are measured by the Technical Center of Anshan Iron and Steel Group using an FJ corrosion and scaling monitor. The conclusion is that the scale deposition rate is only one-seventieth of that of plain stainless steel, which is far below the **standard value. The dirt coefficient is only one thirty-third that of plain stainless steel, which is far below the **standard value.