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LDPE stands for low-density polyethylene, a thermoplastic that is created from the monomer ethylene. This type of plastic is often utilised in film applications because it is relatively transparent, as well as flexible and tough. It is also used to produce some flexible bottles and lids, as well as being used in cable and wire applications. Below, we are going to explain everything you need to know about polyethylene recycling and the LDPE recycling process. Polyethylene is usually manufactured in one of two ways; Low Density or High Density. Other than the scientific differences, the most noticeable difference is their strength and weight. We will look specifically at Low-Density Polyethylene Film, something that can be commonly found in homes in the form of cling film.
While this may not be the most popular type of plastic for household supplies and food containers, LDPE is present in the home in the form of carrier bags. In the UK, low density polyethylene (LDPE) is the most common form of plastic utilised by manufacturers at 19.3%. Although these plastic bags disintegrate at a quicker rate than plastic bags made from high density polyethylene (HDPE), they still pose a threat to the environment, and recycling them effectively is imperative.
There are many benefits and drawbacks associated with this type of plastic, as is the case for all plastics on the market today. Some of the main benefits of LDPE are impact strength, chemical resistance, low specific gravity and resistance to low and high temperatures. Some of the main drawbacks of LDPE are high coefficient of thermal expansion, a very low stiffness and tensile strength in comparison to HDPE.