PE films are being used quite popularly in many different fields. Ergonomic, durable products have brought many benefits. To help you better understand this product, join us to find out right away the following article!
1. What is PE film?
PE film has the English name of PE Stretch film, in which PE stands for polyethylene or polyethene. The product is produced by melting PE plastic at the appropriate temperature in the extruder, then passing it through the top of the mold, cooled and rolled in. The thickness and thinness of the PE film can be adjusted through the elongation speed during the resin passage through the forming mold.
2. Characteristics and properties of the PE film
PE film is a transparent, odorless, slightly translucent, flexible white film
PE film does not conduct electricity, does not conduct heat, is waterproof, dustproof, anti-grease, waterproof to gases such as O2, CO2, NO2 ...
The product has high strength, good elasticity,
The melting point of the PE film is high (120 ° C), the glass chemical temperature is low (-100 ° C).
PE film has full chemical properties of saturated hydrocarbon. Typically, they do not react with any solvents, including potassium permanganate, acid, alkali or br.
Although at high temperature, PE is still poorly soluble in solvents such as xylene, amylacetate, pine oil, mineral oil ... and is not dissolved in water or fatty alcohols, esters ...
3. The uses of PE films
In the transport sector
In the transport field, PE film is definitely indispensable. People often use PE film to wrap products, bracing, and fixing products. For electronic component products, PE film is a suitable packaging because they can not only protect electronic products from scratches, impacts but also resist water, oxidation, electrical insulation ... fruit.
In addition, PE film is also commonly used in the packaging and transportation process to seal to avoid product loss in the process of reaching consumers.
In the culinary field
PE film is also known as food wrap because it is really useful in this area. Instead of having to spend too many plastic boxes, glossy bags to preserve unused, used but not finished foods, fresh foods ... now, you only need a single thin, light film.
PE film has good adhesion properties on many types of surfaces, waterproof, prevents air and bacteria from entering, so it is widely used in food preservation. In some cases, it can also be used in cooking with recipes that require thawing or the water bath.
In the industrial sector
In factories, production facilities, people often use PE film to wrap machine parts, power lines, and products that have just been manufactured or used to fix a certain machine part.
In particular, in some industrial metal products. From the production process to the consumers' hands, it takes many stages. Maybe it will take a year to be on the market. These goods always have trouble with oxidation. Because there are components O2, N2, CO2, ... in the air, which lead to oxidation, leading to product peeling and rusting. And now the PE film is an effective "savior".
PE film is inert to solvents, does not react in acidic, basic or alcohol environments, ... At the same time, it does not allow air to pass, so your goods will always be safe.
4. PE screen production method
Currently, the popular PE film production method is the extrusion method. First, the PE plastic particles are put into the extruder, the machine has a flat head or is made from a round head mold, the plastic particles will be transferred in the extruder and heated to make the molten plastic, then the plastic will be passed through the die head. , it is then passed through the mold, and cooled and then rolled in. In the process of passing the profile, it is possible to adjust the thin film thickness by the rate of expansion.
With the above sharing, hope to help you better understand PE film. The product is quite popular in the market today. Please refer to and have the best application for me!
