PE bags are a type of plastic bag widely used in many different fields. They have many outstanding advantages compared to other types of plastic bags, the most notable of which is high durability. So how durable are PE bags and thanks to what factors? This article will answer you.
The high durability of PE bags is due to its material and structure. This type of bags is made from Polyethylene plastic beads, a polymer belonging to the polyolefin group, with a long molecular structure and little branching. PE has two main forms: low density PE (LDPE) and high-density PE (HDPE), depending on the number and arrangement of molecular branches.
PE plastic bags is produced by the film blowing method. The process includes melt PE plastic beads and press them through a tubular mold, then blowing air into form a thin plastic film. After blowing, the plastic film is rolled into rolls or cut into bags as required. The film blowing process helps create tight and uniform molecular bonds in the plastic film. Thanks to that, it helps to increase the durability of the PE bag.
The durability of PE bags is expressed through its properties
– Mechanical durability: PE bags have good force, load, impact and tear resistance. PE bags can hold many different types of products. From light products such as food, clothes, books to heavy and sharp products such as electronic components, metal, wood… We also reuse PE bags many times without damage.
– Heat resistance: PE bags have quite good heat resistance, can withstand temperatures from -40°C to 120°C. However, PE bags should not be directly exposed to high heat or fire, as it will cause deformation or fire.
– Chemical resistance: PE bags have good chemical resistance, unaffected by water, steam, grease, acids, bases and most organic solvents. PE bags also have good anti-corrosion and anti-oxidation properties, and do not decompose when exposed to air or light.
However, the durability of PE bags depends on many different factors
The thickness of the PE bag is an important factor affecting the durability of the bag. Typically, PE bags have different thicknesses from 20 microns to 200 microns. Bags with greater thickness are usually more durable. This also depends on the intended use of the bag. For example, if you use PE bags to store waste, there is no need to choose a bag that is too thick because just ensuring it is leak-proof is enough.
If you use PE bags to store heavy or sharp items, be careful not to pull or tear the bag too hard to avoid tearing or puncturing the bag. In addition, when storing PE bags, avoid direct sunlight and high temperature places to avoid reducing the bag’s flexibility.
Usage time is also an important factor affecting the durability of PE bags. Normally, PE bags can be used for about 6 months to 2 years depending on the purpose of use and storage conditions.
PE bags are an indispensable type of packaging in modern life. However, to keep choosing a good PE bag, you need to choose the right type of bag for its intended use and store it properly. If you want more information about PE bags, please contact us at Hanpak for detailed advice.
For your reference, you could explore further via our website: hanpak.com.vn or mail to info@hanpak.com.vn.