Freezing rain and snow have always threatened long-distance transportation Cable Security of. In recent years, the frequency and intensity of rain, snow and freezing disasters have gradually increased, which brings potential safety hazards to cables that cannot be ignored. Cable and electricity Pagoda The formation mechanism of ice formation is very complex. Temperature, humidity, wind speed, wind direction, rainfall, snowfall and other factors will cause different mechanisms of ice formation, and the adhesion strength of the formed ice will be correspondingly different. Develop a kind of coating that is simple and can effectively prevent various icing methods coating It is of great significance to the safe production of power grid.
Working mechanism
The anti ice and snow coating adopts the alternating multi block inorganic organic interpenetrating network polymer (IPN) base material and highly active anti ice and snow additives after surface modification. The composition of various substances makes the coating present a shell core double layer structure as a whole. This special structure makes the paint have certain elastic properties, and the contact angle and rolling angle are also excellent. When covered with snow and water, it actively reduces the contact area with snow and water, reducing friction. After being painted on the solid surface, a hydrophobic molecular layer with special orientation can be formed on the surface of the material to be protected, which is essentially equivalent to building a self-cleaning separation film between the protected surface and the ice crystal. The contact angle of the surface to water can reach 105 degrees, and the surface energy is less than 20x10 -8 N/M， It ensures the excellent anti ice and snow function of the coating film.
Notes on product parameters
1. Ultra low surface energy - resistance to ice and snow adhesion, so that the substrate is not under the weight load of ice and snow;
2. Ultra low friction coefficient - wear resistance, coating surface energy is very small;
3. Extremely high stability - heat and corrosion resistance, long service life;
4. High permeability - fatigue resistance, good waterproof and snow effect;
5. Ultra high aging resistance - the use of modified solution and the parallel composition of inorganic organic materials greatly improve the aging resistance of the coating.
6. Long term corrosion resistance - the coating is dense, the material is modified, and the coating shows strong corrosion resistance.
Product features
When ZS-611 anti ice and snow coating is covered by ice, snow or rain, it actively reduces the contact area with snow water and reduces the contact between molecules. According to the test, the contact angle of ZS anti ice and snow coating surface to water can reach 105 degrees, and the surface can be lower than 22x10 -3 N/m。 The anti ice and snow coating can form a hydrophobic molecular layer with special orientation on the surface of the material to be protected, which is essentially equivalent to building a self-cleaning separation film between the protected surface and ice crystals. Such ZS anti ice and snow coating is relatively common Glass Compared with materials, the sliding property of water is increased by 6 times, the sliding time is shortened by 4 times, the sliding property of snow is increased by 4 times, and the sliding time is shortened by 3 times.
application area
Anti icing, anti ice and snow; Self cleaning and antifouling to keep the surface clean; Oil and gas transportation The Conduit Drag reduction, anti wax.
Application effect
ZS-611 anti ice and snow coating is smooth, with large elevation angle, good elasticity, high adhesion and good anti icing adhesion performance. At the same time, the coating surface presents low surface energy. ZS-611 anti ice and snow coating is added with special surfactant and nano rare earth oxide. Through the interaction and synergistic effect of each component, the coating has excellent properties such as low surface energy, high corrosion resistance, strong adhesion, resistance reduction and anti wax. ZS-611 anti ice and snow coating has a good application in transmission lines of the State Grid.
The test results of ZS-611 anti ice and snow coating show that in order to reduce the adhesion of the coating surface to water and achieve the function of preventing icing, the contact angle of the coating surface to water after drying should be more than 90 °, and the coating surface energy must be less than 25x10 -3 N/m。 In the winter climate, the outdoor temperature is usually lower than zero, and that little heat will be immediately absorbed by the surrounding low temperature. When the heat release rate of the high-voltage wire is slower than the solidification rate, it will condense into ice, so the high-voltage wire will generally have the phenomenon of icing. The thickness of the ice and snow coating is 5cm around the upper surface of the wires and cables without anti ice and snow coating. The coated wires and cables are covered with 1-1.5mm thick ice and snow. When the thickness of the falling ice below is 1-2 cm, the falling ice will break away from the wires, reducing the weight of the ice and snow coating, so as to avoid the occurrence of cable breakage and tower wire breakage accidents.
This kind of coating has long existed in the product system of Zhisheng Weihua, and is mainly used in military vehicle chassis and military facilities in service in the north. After the restructuring of Zhisheng Weihua, this series of coatings has been promoted to the application of train chassis (high-speed railway chassis), some cables, wharf steel structures, high-rise cornices, and northern high chimneys to replace the tracing belt for snow and ice prevention.
