Linear Low-Density Polyethylene (LLDPE)

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 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

Applications of LLDPE: Suitable for a variety of film application such as general-purpose film, stretch film, garment packaging, agricultural film, etc.