Investigation on the Structure and Properties of Different PE Blown Films
-
, and
Abstract
Molecular orientation and structure development during film blowing have a major effect on mechanical and physical properties of polyethylene films. In this work the structures and morphology of three different polyethylene blown films; linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), and high density polyethylene (HDPE) were studied. A series of blown films were produced at different process conditions. The orientation of lamellae and lamellar stacks and the morphology of the films were characterized by SEM, AFM and X-ray diffraction. SEM images of the film plane surface MT (Machine-Transverse) and cross section slices in TN (Transverse- Normal) and MN (Machine-Normal) planes were made and compared with AFM images. It was observed that the surface morphology reflects a continuation of the bulk morphology for the cases studied. Changes in the blown film process parameters, such as take up ratio (TUR), blow up ratio (BUR) and frost line height (FLH) have an effect on structural parameters, crystallinity and mechanical properties.
References
Ajji, A., Zhang, X., “Correlations between orientation and some properties of polymer films and sheets”, SPE ANTEC Tech. Papers, 1651-1655(2002)Search in Google Scholar
Ajji, A., et al., “Biaxial orientation in polyethylene films: comparison of infrared spectroscopy and X-ray techniques”, SPE ANTEC Tech. Papers, 1459-1463(2003)Search in Google Scholar
Babel, K. A., et al., “Kinematics, structure and properties relationship of polyethylene blown films”, SPE ANTEC Tech. Papers, 2112–2119 (1996)Search in Google Scholar
Chai, K. C., et al., “Influence of molecular weight distribution on LLDPE blown film processing conditions and property sensitivity”, SPE ANTEC Tech. Papers, 331–335 (2000)Search in Google Scholar
Fatahi, S., et al., “Structure-Property Correlations For PE Blown Films”, SPE ANTEC Tech. Papers (2005a)Search in Google Scholar
Fatahi, S., et al., “Correlation between structural parameters and property of PE blown films”, J. Plast. Film Sheet, 21, 281–305 (2005b)10.1177/8756087905059979Search in Google Scholar
Ghaneh-Fard, A., “Effects of film blowing conditions on molecular orientation and mechanical properties of polyethylene films”, J. Plast. Film Sheet, 15, 3, 194–218 (1999)10.1177/875608799901500304Search in Google Scholar
Godshall, D., et al., “Processing-structure-property investigation of blown HDPE films containing both machine and transverse direction oriented lamellar stacks”, Polymer, 44, 18, 5397-5406 (2003)Search in Google Scholar
Haudin, M. J., et al., “Etude des relations entre mise en forme, orientation et retraction dans des films de polyéthyléne basse densité réalisés par soufelage de gaine”, Ann. Chim. Sei. Mat, 28, 1, 91–107 (2003)Search in Google Scholar
Kim, Y.-M, et al, “Morphological considerations on the mechanical properties of blown High-Density Polyethylene films”, J. Appl. Polym. Sei, 63, 3, 289–299 (1997)Search in Google Scholar
Krishnaswamy, K. R., “Structure-property relationships in HMW-HDPE blown films”, SPE ANTEC Tech. Papers, 111–115 (2001)Search in Google Scholar
Krishnaswamy, K. R., Sukhadia, M. A., “Orientation characteristics of LLDPE blown films and their implications on Elmendorf tear performance”, Polymer, 41, 26, 9205-9217 (2000)Search in Google Scholar
Krishnaswamy, K. R., Sukhadia, M. A., “The influence of solid-state morphology on the impact strength of Linear Low Density Polyethylene blown films”, SPE ANTEC Tech. Papers, 2395–2399 (2002)Search in Google Scholar
Larena, A, Pinto, G, “The effect of surface roughness and crystallinity on the light scattering of polyethylene tubular blown films”, Polym. Eng. Sei, 33, 12, 742–747 (1993)Search in Google Scholar
Lu, J, Sue, H.-J, “Morphology and mechanical property relationship in Linear Low density Polyethylene blown films”, J. Mat. Sei, 35, 20, 5169–5178 (2000)Search in Google Scholar
Lu, J, Sue, H.-J, “Morphology and mechanical properties of blown films of a Low Density Polyethylene/Linear Low Density Polyethylene blend”, J. Polym. Sei, Part B, Polym. Phys, 40, 507–518 (2002)Search in Google Scholar
Lu, J, et al, “Phase structure characterization and processing-structure-property relationships in Linear Low Density Polyethylene Blown Films”, SPE ANTEC Tech. Papers, 1768–1774 (1999)10.1016/B978-188420776-1.50016-8Search in Google Scholar
Lu, J, et al, “Dual crystalline texture in HDPE blown films and its implication on mechanical properties”, Polymer, 42, 4635–4646 (2001)10.1016/S0032-3861(00)00719-9Search in Google Scholar
Murakami, S, et al, “Comparative study of structure and tensile properties of melt-pressed and extruded-blown films of HDPE”, J. Macro-mol. Sci.-Phys, B39 (5&6), 645–655 (2000)10.1081/MB-100102476Search in Google Scholar
Patel, M. R., et al, “Investigation of processing-structure-properties relationships in polyethylene blown films”, Polym. Eng. Sei, 34, 19, 1506–1514(1994)Search in Google Scholar
Simpson, M. D., Harrison, R. I., “The effect of processing parameters on the morphologies and mechanical properties of polyethylene blown films”, SPE ANTEC Tech. Papers, 1206–1209 (1993)Search in Google Scholar
Smith, P. F., et al, “Studies of optical haze and surface morphology of blown polyethylene films using Atomic Force Microscopy”, Polym. Eng. Sei, 36, 16, 2129–2134 (1996)Search in Google Scholar
Sukhadia, M. A., “The effects of molecular structure rheology, morphology and orientation on polyethylene blown film properties”, SPE ANTEC Tech. Papers, 160–168 (1998)Search in Google Scholar
Wang, L, et al, “Light transmission and haze of polyethylene blown thin films. Polymer Engineering and Science”, Polym. Eng. Sei, 41, 2, 358–372(2001)Search in Google Scholar
Zhang, X. M., et al, “Processing-structure-properties relationship of multilayer films. 1. Structure characterization”, Polymer, 42, 19, 8179–8195 (2001)Search in Google Scholar
Zhang, X. M., et al, “Effect of crystalline structure on tear resistance of LDPE and LLDPE blown films”, SPE ANTEC Tech. Papers, 1376–1380 (2003)Search in Google Scholar
Zhang, X. M., et al, “Oriented structure and anisotropy properties of polymer blown films: HDPE, LLDPE and LDPE”, Polymer, 45, 217–229 (2004a)10.1016/j.polymer.2003.10.057Search in Google Scholar
Zhang, X. M., et al, “Effect of cry stalline structure on tear resistance of LDPE and LLDPE-blown films”, J. Plast Film Sheet, 20, 43–52 (2004b)10.1177/8756087904044753Search in Google Scholar
© 2007, Carl Hanser Verlag, Munich
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Characteristic Curves based on 3D Non-isothermal Flow Computations in Single-screw Extruder for Non-Newtonian Fluids
- Investigation on the Structure and Properties of Different PE Blown Films
- Influence of Mold Temperature on the Internal Structure and Creep Variation in the Thickness Direction of sPS Injection Moldings
- Preparation of Foam from PVC Plastisol
- Effects of Zinc Salts of Sulfonated Natural Rubber on Mechanical Properties, Morphology and Compatibility of Natural Rubber/Chlorosulfonated Polyethylene Blends
- Polypropylene-Clay Nanocomposites Fibers Structure and Performance
- Rapid Communications
- Constant Temperature Microfeature Embossing with Slowly Crystallizing Polymers
- PPS News
- PPS News
- Seikei-Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Characteristic Curves based on 3D Non-isothermal Flow Computations in Single-screw Extruder for Non-Newtonian Fluids
- Investigation on the Structure and Properties of Different PE Blown Films
- Influence of Mold Temperature on the Internal Structure and Creep Variation in the Thickness Direction of sPS Injection Moldings
- Preparation of Foam from PVC Plastisol
- Effects of Zinc Salts of Sulfonated Natural Rubber on Mechanical Properties, Morphology and Compatibility of Natural Rubber/Chlorosulfonated Polyethylene Blends
- Polypropylene-Clay Nanocomposites Fibers Structure and Performance
- Rapid Communications
- Constant Temperature Microfeature Embossing with Slowly Crystallizing Polymers
- PPS News
- PPS News
- Seikei-Kakou Abstracts
- Seikei-Kakou Abstracts