UPVC pipe uses polyvinyl chloride resin as the carrier, which has the excellent characteristics of accurate temperature sensing, timing melting, and rapid absorption of the effective ingredients of additives when weakening the gravitational force between the resin molecular chains. At the same time, it adopts the world famous calcium-zinc composite heat stabilizer. When the resin is subjected to high temperature and melting, it can capture, inhibit, absorb and neutralize the removal of hydrogen chloride, carry out double bond addition reaction with the polyene structure, and replace the active and unstable chlorine atoms in the molecule. So as to effectively and scientifically control the catalytic degradation and oxidative decomposition of the resin in the molten state.
UPVC pipe is a plastic pipe made of polyvinyl chloride (PVC) resin without plasticizer. With the development of chemical industry technology, it is now possible to produce non-toxic grade pipes, so it has the properties of general polyvinyl chloride, and has added some excellent properties. Specifically, it has the advantages of good corrosion resistance and flexibility, so Especially suitable for water supply pipe network. Because it is not conductive, it is not easy to electrochemically react with acids, alkalis and salts. Acids, alkalis and salts are difficult to corrode it, so no external anticorrosive coating and lining are needed. And the flexibility is good, which overcomes the shortcomings of the brittleness of plastic pipes in the past, and can yield under load without cracking. There has been such an experiment: a DN50mm UPVC pipe was placed on the ground, and a Crown 3.0 car was driven on it. The pipe was only flat but not broken. Then we let the Dongfeng car full of cargo press over the pipe, and the pipe is just deformed and not broken.
With the continuous and in-depth development of reform and opening up, people's living standards continue to improve, and the requirements for the quality of tap water are getting higher and higher. In addition to ensuring that the factory water meets the drinking water standards, the water supply industry must also qualify the water delivered through the pipe network. People have a strong reaction to the "yellow water", "black water" and other phenomena of tap water, and the main reason for the deterioration of the water quality of the guide pipe network is the corrosion of the water supply pipeline, especially the cold galvanized pipe. The coating on the inner wall of the pipe is unstable. After a year and a half of use, it starts to rust within a short period of time, resulting in iron smell and color in the water, and the corrosion of galvanized pipes buried underground is more serious. The UPVC pipe is corrosion resistant. No fouling, can inhibit the growth of bacteria, and help protect the water quality from secondary pollution of the pipeline. Therefore, UPVC pipe has a wide range of application prospects, especially a large number of buried pipes in front of the user's water meter can use it.
