Some properties of PP/PE multilayer and blends films

  1. (PDF, 572 KB)
AuthorSearch for: ; Search for:
Proceedings titleFlexible Packaging Conference 2005
ConferenceFlexible Packaging Conference, March 14-16, 2005, Orlando, Florida, U.S.A.
AbstractIn this study, we investigated the structure and properties of multilayer and blends films of polypropylene (PP) and polyethylene (PE) obtained from the blown film extrusion process. Three PP's and an LLDPE were used. The oriented crystalline structure of the PP's was such that b-axis oriented in ND-TD plane and c-axis oriented in MD. PE crystalline morphologies at the interface were different for the different PP's. PP had similar crystalline orientation for blended and co-extruded films but not PE. Tensile strength was larger in MD than TD and tear resistance higher in TD than MD. The modulus and strength were lower for the blend films. Haze depended strongly on the PP used and whether it was pure, multilayer or blended, with the lowest haze obtained for the multilayer films made of copolymer PP and the highest with the multilayer films with homopolymer PP. Oxygen permeability is the lowest for the PP homo and co-polymer films, followed by their multilayer films, then the blended films and the worst is the HMS films. The thermal properties from differential scanning calorimetry will also be discussed as well as some comparison with films made with clay nanoparticles in PP layer or film.
Publication date
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedNo
NRC number54307
NPARC number18426576
Export citationExport as RIS
Report a correctionReport a correction
Record identifier2e6dff0e-9e41-4ed2-954e-f89b3cba1cfa
Record created2011-08-23
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)