At present, oil and gas transmission The Conduit Most adopt epoxy resin Anticorrosion shall be carried out. For long-distance pipelines, corrosion prevention shall be strengthened by connecting cathodic protection modules. However, the epoxy resin contains a large number of epoxy groups, the cross-linking density is too high, many micropores are generated after curing, and the paint film is also hard, brittle, and has poor flexibility. In case of special soil or air pollution, it is not enough to rely solely on epoxy resin for corrosion prevention, and there are potential safety hazards. For thousands of kilometers of long-distance pipeline, it is too difficult to monitor and repair the whole line, which undoubtedly magnifies the potential safety hazard brought by epoxy resin anti-corrosion.
since nanometer After the emergence of technology, people began to try to make up for the defects of epoxy resin by adding nano materials. However, due to the surface effect of nano materials themselves, agglomeration easily occurs, and the compatibility of adding nano materials to epoxy resin is poor, this improvement approach is slow, and there is no mature and reliable scheme up to now.
In fact, if you look beyond the limitations of epoxy resin, you will find that Zhisheng Weihua ZS-711 inorganic Anticorrosive coating It is very suitable for the anti-corrosion requirements of oil and gas transmission pipelines. D-I, ZS-711 is mainly a special resin with inorganic main chain grafting functional organic side chain, which has high chemical inertia, high cross-linking degree and high UV aging resistance. Because of the inorganic properties of its main chain coating It overcomes the influence of surface tension with metal substrate, and the binding force between them is strengthened. Due to its inorganic characteristics, the temperature resistance window of the coating is expanded, and it can be used for a long time in the environment from minus 40 ℃ to high temperature 400 ℃. Secondly, in addition to the functional pigments and fillers for balancing potential, ZS-711 has a large number of flake zinc powder (zinc content ≥ 80%), which can not only provide the shielding function of "labyrinth effect", but also play the cathodic protection function of sacrificial anode. After the coating is filmed, the flake like zinc powder is stacked. When encountering external force, the flake like zinc powder can form micro sliding decomposition, weaken the deformation caused by external force without cracking. More importantly, ZS-711 showed outstanding performance in the salt fog corrosion resistance acceleration test, with the duration of more than 4000h, which is not the upper limit. The Zhisheng Weihua laboratory sample has been tested in the salt fog resistance box for more than 6000h, and the coating has not changed. The ultraviolet aging resistance of the coating is also outstanding, and the ZS-711 has not changed in eight years of application on offshore platforms (single coating bottom and surface integrated in the open air).
The coating method of ZS-711 is almost the same as that of epoxy zinc rich coating, which is simple and fast. ZS-711 is developed for the anti-corrosion of amphibious tanks. During the application of ZS-711 in the civil market for nearly 20 years, its various performances have been fully demonstrated. With the advent of the network era, more people will see this special coating fully demonstrate the surprise brought by ZS-711!
ZS-711 inorganic ceramic anti-corrosive coating has a temperature resistance of 400 ℃ and a dense and smooth surface film, which can effectively prevent seepage and reduce the impact of ocean currents on the additional load of equipment systems. Long term corrosion resistance of ZS-711 inorganic ceramic anti-corrosion coating good Under the laboratory artificial accelerated salt fog resistance test, it can achieve more than 4000 hours, and can withstand seawater immersion for a long time, and the coating is intact without change.
