Physical Properties of Blends of Various Melt Index LDPEs and LLDPE, 1996 Polymers, Laminations & Coatings Conference Proceedings
For many years, linear low density polyethylene (LLDPE) and low density polyethylene (LDPE) have been blended to improve either the physical properties of LDPE films or the processibility of LLDPE films. This report documents a study done to examine the affect that LDPE concentration and melt index have on the processing properties and physical properties of ethylene / 1-octene LLDPE copolymer blown films. It was found that both the LDPE concentration and melt index affected the processing properties and most of the physical properties of the LLDPE. A significant synergistic relationship was discovered with the hot tack and heat seal properties.