Film Processability, Morphology, and Properties of Polyamide-6/Low Density Polyethylene Blends

The processing, morphology, and tensile properties of blown films prepared from polyamide-6 (PA6) and low density polyethylene (LDPE) blends with and without compatibilizer (Surlyn® 9020) are studied. The results indicate that the presence of PA6 and a compatibilizer has a great influence on blend rheology as well as mechanical and barrier properties of LDPE films where the morphology of the dispersed phase (PA6) plays an important role. In this study, film morphology is controlled mainly by variations in draw ratio and bubble pressure. It is shown that biaxial orientation of the films explains the anisotropic behavior of the mechanical properties and improved barrier properties due to the production of a lamellar structure.

[1]  D. Rodrigue,et al.  Effect of Freeze-Line Position and Stretching Force on the Morphology of LDPE-PA6 Blown Films , 2006 .

[2]  D. Rodrigue,et al.  The Effect of Post-extrusion Conditions in Ribbon Extrusion of Polymer Blends , 2006 .

[3]  F. Mantia,et al.  Filmability and properties of compatibilized PA6/LDPE blends , 2005 .

[4]  A. Hiltner,et al.  Effect of compatibilization on the oxygen‐barrier properties of poly(ethylene terephthalate)/poly(m‐xylylene adipamide) blends , 2005 .

[5]  H. Münstedt,et al.  Correlation between rheological behaviour in uniaxial elongation and film blowing properties of various polyethylenes , 2005 .

[6]  A. Hiltner,et al.  Improving gas barrier of PET by blending with aromatic polyamides , 2005 .

[7]  Jiann-Shing Wu,et al.  Predicting the permeability and tensile behavior of high density polyethylene/tie/polyamide 6 three-layer films , 2004 .

[8]  P. Schulz,et al.  Compatibilization of polystyrene and polyamide 6 mixtures with poly(styrene‐co‐sodium acrylate) , 2004 .

[9]  P. Carreau,et al.  Dynamics and criteria for bubble instabilities in a single layer film blowing extrusion , 2004 .

[10]  M. Huneault,et al.  Effect of Crystalline Structure on Tear Resistance of LDPE and LLDPE-Blown Films , 2004 .

[11]  Abdellah Ajji,et al.  Oriented structure and anisotropy properties of polymer blown films: HDPE, LLDPE and LDPE , 2004 .

[12]  R. Scaffaro,et al.  Morphology and mechanical properties of extruded ribbons of LDPE/PA6 blends compatibilized with an ethylene-acrylic acid copolymer , 2003 .

[13]  Jianjun Lu,et al.  Morphology and mechanical properties of blown films of a low‐density polyethylene/linear low‐density polyethylene blend , 2002 .

[14]  J. Yeh,et al.  Paint Solvent Permeation Resistance of Polyethylene, Polyethylene/Polyamide and Polyethylene/Modified Polyamide Bottles , 2002 .

[15]  D. De Kee,et al.  Barrier properties of polyamide-6/high density polyethylene blends , 2001 .

[16]  C. Iniguez,et al.  Morphological stability of postconsumer PET/HDPE blends , 2000 .

[17]  Jen-Taut Yeh,et al.  Influence of compatibilization and viscosity ratio on the barrier and impact properties of blends of a modified polyamide-6 and polyethylene , 1999 .

[18]  D. Acierno,et al.  Influence of composition on properties of nylon 6/EVOH blends , 1999 .

[19]  Seongyup Kim,et al.  Barrier property by controlled laminar morphology of LLDPE/EVOH blends , 1999 .

[20]  S. Fellahi,et al.  Morphological stability in injection-moulded high-density polyethylene/polyamide-6 blends , 1996 .

[21]  K. Walton,et al.  Investigation of processing‐structure‐properties relationships in polyethylene blown films , 1994 .

[22]  Y. Germain,et al.  Rheological and morphological analysis of compatibilized polypropylene/polyamide blends , 1994 .

[23]  C. Lavallée,et al.  The influence of interfacial interactions on the morphology and thermal properties of binary polymer blends , 1993, Journal of Materials Science.

[24]  F. Chang,et al.  STYRENE MALEIC-ANHYDRIDE AND STYRENE GLYCIDYL METHACRYLATE COPOLYMERS AS INSITU REACTIVE COMPATIBILIZERS OF POLYSTYRENE NYLON 6,6 BLENDS , 1991 .

[25]  P. M. Subramanian.  Permeability barriers by controlled morphology of polymer blends , 1985 .

[26]  C. Han,et al.  Blends of nylon 6 with an ethylene-based multifunctional polymer. II: Property-morphology relationships , 1985 .

[27]  L. Utracki,et al.  Permeability of oxygen and water vapor through polyethylene/polyamide films , 1984 .

[28]  J. M. Rallison.  The Deformation of Small Viscous Drops and Bubbles in Shear Flows , 1984 .

[29]  Frederic Neil Cogswell,et al.  Polymer Melt Rheology: A Guide for Industrial Practice , 1981 .