What is polyethylene and what types of polyethylene tanks are there?
Polyethylene is the most widely used polymer material used in the rotational molding industry and has 85% of the market in this industry. It can be stated that this type of tank, including the water tank, is one of the types of fluid and chemical storage tanks. which currently has many applicants in Iran compared to other types of tanks due to its reasonable price, light weight and ease of transportation.
Types of polyethylene
1. Light polyethylene
In 1961, Aquastar Company launched light polyethylene powder with 500 micron grain size. Light polyethylene was the first member of the polyethylene family, which is used in the molding industry, and the devices and equipment of this industry were expanded with this material. Light polyethylene, similar to other polymers, is formed from long chains consisting of small molecular groups called (monomers) connected to each other. Light polyethylene contains carbon and hydrogen atoms and a large number of side branches. These branches prevent the main chains from approaching each other and cause high density, and this decrease in density in turn decreases the density of the polymer, generally to polyethylene with a density of 0.910 to 0.925 grams per cubic centimeter. Light polyethylene can be said.
2. Heavy polyethylene
Polyethylene with a density of 0.941 to 0.959 grams per cubic centimeter is called heavy polyethylene.
Heavy polyethylene, like light polyethylene, consists of hydrogen and carbon atoms, the difference is that the chain length of heavy polyethylene is 50 times longer than that of light polyethylene, and the density of side branches is ten times less than that of light type. it is Decreasing the number of side branches increases the dispersion of polymer chains and as a result increases the density of the polymer. External physical or chemical forces no longer play a role in keeping polymer molecules together, Rather, the intermolecular force called the van der Waals force keeps the polymer chains together. This force, like magnetic forces, will attract the polymers to each other and create a dense mass. In a general summary, it can be stated that increasing the degree of crystallization increases the density and shrinkage, improves the tensile and bending strength, chemical and thermal resistance of the polymer, and reduces its impact resistance and transparency. At the same time, this phenomenon reduces uniformity in the assembly of the final piece.
In what models are polyethylene tanks produced?
In terms of appearance, the polyethylene tank can be divided into horizontal, vertical, conical, cubic and adapted tanks with all types of vans and under stairs, which we will introduce some of them in this section.
1. Horizontal polyethylene tank:
The horizontal polyethylene http://azheneh.com/ProductsEN/Products-Azhenehcan be produced and used in different angles and sizes as single layer, double layer and three layer. The two-layer polyethylene tank can be used mostly for storing chemical solutions or for storing water in a buried way. The three-layer polyethylene tank is designed to prevent sunlight from entering the solution or water, which prevents the effect of sunlight on chemical solutions or prevents the proliferation of algae in the water storage tank.
2. Vertical polyethylene tank:
The volume of the polyethylene tank can be considered between 5 and 126 cubic meters (5 thousand liters and 126 thousand liters). It can be produced in single-layer, double-layer and three-layer types. The vertical polyethylene tank with reinforced walls and its ergonomic shape has the ability to store a large amount of liquids with high and low pH.
3. Cubic polyethylene tank:
The cubic polyethylene tank is designed and produced to meet the needs of customers who do not have the right space to install cylindrical polyethylene tanks. The angles of cubic polyethylene tanks are designed so that you can use and install them in the smallest places.
4. Polyethylene sprayer tank:
You can use a polyethylene water source or a plastic spray water tank to store various types of chemical products. Considering that agriculture is one of the economic poles of the Iranian people, therefore, agricultural facilities with the highest quality should be available to dear farmers.
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