Tough, Yet Thin
The strengths of Linear Low-Density Polyethylene (LLDPE) make it ideal for use in a variety of packaging applications. LLDPE’s toughness means it can be used in thinner films while retaining material strength, especially compared to its similarly named polyethylene sibling, Low-Density Polyethylene (LDPE). Thinner films can mean less raw material used, and that can mean lower LLDPE plastic prices compared to other variations.
When comparing LLDPE vs. LDPE, LLDPE offers higher tensile strength and higher impact and puncture resistance than LDPE, thanks to the former’s significant number of short, uniform branches (compared to LDPE’s longer branches) that prevent the polymer chains from packing closely together. Its polymerization conditions are also less energy-intensive than LDPE, and LLDPE properties can be altered with varying types and amounts of chemical ingredients.1
Among the polyethylenes -- including LDPE and HDPE (High-Density Polyethylene) -- LLDPE is often used in rotomolding because it is durable yet forgiving.2 Polyethylenes like LLDPE have characteristics that have made them the most widely used resin powders for rotational molding after being pulverized.
What Is LLDPE Plastic Used For?
Around the world, LLDPE is the most-used material for film applications like food and non-food packaging, shrink and stretch film, and other such uses.3 LLDPE can be found in many households and around virtually every neighborhood in an assortment of everyday uses with practical applications involving food storage and preparation, child’s play, and electronics, among other uses.