
The main materials of plastic storage tanks
2025-06-03 08:40Plastic storage tanks are equipment used to store various liquids, and the selection of their main materials is crucial for the performance and service life of the tanks. At present, the main materials for plastic storage tanks include polypropylene (PP), polyethylene (PE), and polyvinyl chloride (PVC).
Polypropylene storage tanks have excellent corrosion resistance, able to withstand the corrosion of most organic and inorganic acids, alkalis, and salt solutions. At the same time, they have low specific gravity, high strength, good impact resistance, and high temperature resistance, and can be used in environments ranging from 110 to 120 ℃ for a long time. Polypropylene storage tanks are typically suitable for large storage tanks, with a capacity range of 30 to 120 cubic meters.
Polyethylene storage tanks are known for their lightweight, durability, and good sealing performance. Polyethylene material has good corrosion resistance and can store various chemicals such as acids, bases, salts, etc. Meanwhile, polyethylene storage tanks are lightweight, easy to transport and install, and have high strength and toughness, capable of withstanding certain impacts and pressures. The unique sealing design of polyethylene storage tanks can effectively prevent liquid leakage, ensuring the safety and reliability of the tanks. In addition, the hygiene and environmental performance of polyethylene storage tanks is also good, with a smooth interior that is not prone to bacterial growth and meets food hygiene standards.
Polyvinyl chloride storage tanks have good processing and forming performance, as well as certain strength, and good corrosion resistance, able to withstand corrosion from acids, alkalis, salts, gases, water, and other substances. However, the temperature resistance range of PVC storage tanks is relatively narrow, usually between -40 and 60 ℃.
In short, plastic storage tanks made of different materials have their own characteristics and advantages. Users can choose the appropriate tank material based on their actual needs and the characteristics of the storage medium.