LLDPE is produced by polymerization of ethylene (or ethane monomer) with 1-butene and smaller amounts of 1-hexene and 1-octene, using Ziegler-Natta or metallocene catalysts. It is structurally similar to LDPE.
The structure of LLDPE has a linear backbone with short, uniform branches (unlike longer branches of LDPE). These short branches are able slide against each other upon elongation without becoming entangled like LPDE.
In the present day scenario, Linear low density polyethylene (LLDPE) has been quite successful in replacing Low Density Polyethylene.
Properties of LLDPE
Very flexible with high impact strength
Translucent and natural milky color
Excellent for mild and strong buffers, good chemical resistance
Good water vapor and alcohol barrier properties
Good stress crack and impact resistance
To make puncture, tear, and high impact resistant in toys, marine, housewares, automotive, construction, agriculture, and packaging industries.
To make Houseware, lid, bottle closures, masterbatch, powder coating, and toys industries.
Suitable for a variety of film application such as general purpose film, stretch film, garment packaging, agricultural film, etc.