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Biaxial Orientation of Polylactide/Thermoplastic Starch Blends

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Published/Copyright: April 6, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 22 Issue 5

Abstract

The biaxial stretchability and film properties of polylactide/thermoplastic starch blends were investigated. Polylactide (PLA) and thermoplastic starch (TPS) were blended in various proportions. Blends containing 27, 42 and 60 wt.% TPS were prepared via a twin-screw extrusion process. Interfacial modification was performed by grafting the PLA with maleic anhydride. These blends were subsequently cast into sheets and biaxially drawn using a laboratory biaxial stretcher. The morphology of extruded strands and cast sheets was investigated using scanning electron microscopy. The compatibilized blends exhibited a much finer morphology as well as preferential minor phase size orientation along the machine direction. The addition of starch did not affect significantly the biaxial stretchability of the pure PLA. Even at high starch content (60 wt.%), the biaxial draw ratio at which the sample breaks is very similar to that of the pure PLA. At higher temperatures, all blends could be stretched at significantly much higher biaxial draw ratio and very thin films could be obtained. The starch content and processing variables affected the tensile properties.

∗ Mail address: Nathalie Chapleau, Industrial Materials Institute – National Research Council of Canada, 75, de Mortagne, Boucherville, QC, J4B 6Y4, Canada. E-mail:

References

Avérous, L., et al., “Properties of Thermoplastic Blends: Starch-Polycaprolactone”, Polymer, 41, 4157–4167 (2000)10.1016/S0032-3861(99)00636-9Search in Google Scholar

Avérous, L., Fringant, C., “Association Between Plasticized Starch and Polyesters: Processing and Performances of Injected Biodegradable Systems”, Polym. Eng. Sci., 41, 727–734 (2001)10.1002/pen.10768Search in Google Scholar

Capt, L., et al., “Morphology Development during Biaxial Stretching of Polypropylene Films”, 17th Polymer Processing Society Annual Meeting (2001)Search in Google Scholar

Fischer, E. E., et al., “Investigation of the Structure of Solution Grown Crystals of Lactide Copolymers by Means of Chemical Reactions”, Colloid Polym. Sci., 251, 980–990 (1973)Search in Google Scholar

Hegemann, B., et al., “Biaxial Deformation Behavior of PET Dependent on Temperature and Strain Rate”, J. Macromol. Sci., B41, 647–656 (2002)10.1081/MB-120013056Search in Google Scholar

Huneault, M. A., Li, H., “Morphology and Properties of Compatibilized Polylactide/Thermoplastic Starch Blends”, Polymer, 48, 270–280 (2007)10.1016/j.polymer.2006.11.023Search in Google Scholar

Kanai, T., et al., “Stretchability and Properties of Biaxially Oriented Polypropylene Films”, Int. Polym. Proc., 21, 449–456 (2006)Search in Google Scholar

Ke, T. J.-F., Sun, X., “Physical Properties of Poly(Lactic Acid) and Starch Composites with Various Blending Ratios”, Cereal. Chem., 77, 761–768 (2000)10.1094/CCHEM.2000.77.6.761Search in Google Scholar

Martin, O., Avérous, L., “Poly(lactic acid): Plasticization and Properties of Biodegradable Multiphase systems”, Polymer, 42, 6209–6219 (2001)10.1016/S0032-3861(01)00086-6Search in Google Scholar

Martin, O., et al., “Properties of Biodegradable Multilayer Films Based on Plasticized Wheat Starch”, Starch/Stärke, 53, 372–380 (2001)10.1002/1521-379X(200108)53:8<372::AID-STAR372>3.0.CO;2-FSearch in Google Scholar

Matzinos, P., et al., “Processing and Characterization of Starch/Polycaprolactone Products”, Polym. Degrad. Stab., 77, 17–24 (2002)10.1016/S0141-3910(02)00072-1Search in Google Scholar

Orchard, G. A. J., et al., “Oxygen and Water-Vapor Diffusion through Biaxially Oriented Poly(ethylene terephthalate)”, J. Polym. Sci. Part B: Polym. Phys., 28, 603–621 (1990)10.1002/polb.1990.090280502Search in Google Scholar

Park, J. W., et al., “Biodegradable Polymer Blends of Poly(L-lactic acid) and Gelatinized Starch”, Polym. Eng. Sci., 40, 2539–2550 (2000)10.1002/pen.11384Search in Google Scholar

Rodriguez-Gonzalez, F. J., et al., “High Performance LDPE/Thermoplastic Starch Blends: A Sustainable Alternative to Pure Polyethylene”, Polymer, 44, 1517–1526 (2003)10.1016/S0032-3861(02)00907-2Search in Google Scholar

Rosa, D. S., et al., “Gelatinized and Nongelatinized Corn Starch/Poly(∊-Caprolactone) Blends: Characterization by Rheological, Mechanical and Morphological Properties”, Polimeros: Ciencia e Tecnologia, 14, 181–186 (2004)Search in Google Scholar

Schwach, E., Avérous, L., “Starch-Based Biodegradable Blends: Morphology and Interface Properties”, Polym. Int., 53, 2115–2124 (2004)10.1002/pi.1636Search in Google Scholar

Shin, B.-Y., et al., “Rheological, Mechanical and Biodegradation Studies on Blends of Thermoplastic Starch and Caprolactone”, Polym. Eng. Sci., 44, 1429–1438 (2004)10.1002/pen.20139Search in Google Scholar

Willett, J. L., et al., “Processing and Properties of Extruded Starch/Polymer foams”, Polymer, 43, 5935–5947 (2002)10.1016/S0032-3861(02)00497-4Search in Google Scholar

Yuksekkalayci, C., et al., “Effects of Nucleating Agent and Processing Conditions on the Mechanical, Thermal, and Optical Properties of Biaxially Oriented Polypropylene Films”, Polym. Eng. Sci., 39, 1216–1222 (1999)10.1002/pen.11508Search in Google Scholar

Zhang, X., Ajji, A., “Biaxial Orientation Behavior of Polystyrene: Orientation and Properties”, J. Appl. Polym. Sci., 89, 487–496 (2003)10.1002/app.12268Search in Google Scholar

Zhang, J.-F., Sun, X., “Mechanical Properties of Poly(lactic acid)/Starch Composites Compatibilized by Maleic Anhydride”, Biomacromolecules, 5, 1446–1451 (2004)10.1021/bm0400022Search in Google Scholar PubMed

Received: 2007-5-4
Accepted: 2007-7-25
Published Online: 2013-04-06
Published in Print: 2007-12-01

© 2007, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Special Issue on Biobased Polymers
  5. Invited Papers
  6. Crystallization and Mechanical Propertiesof Poly (D, L) Lactide-based Blown Films
  7. Rheological Behavior and Modeling of Thermal Degradation of Poly(∊-Caprolactone) and Poly(L-Lactide)
  8. Rheological Evaluation and Observations of Extrusion Instabilities of Biodegradable Polyesters
  9. Biaxial Orientation of Polylactide/Thermoplastic Starch Blends
  10. Effects of Starch Types on Mechanical Properties of Poly(lactic acid)/Starch Composites
  11. Solid and Microcellular Polylactide-Carbon Nanotube Nanocomposites
  12. Tapioca Starch-poly (lactic acid)-based Nanocomposite Foams as Affected by Type of Nanoclay
  13. Injection Molded Solid and Microcellular Polylactide Compounded with Recycled Paper Shopping Bag Fibers
  14. Fabrication of Porous 3-D Structure from Poly(L-lactide)-based Nanocomposite Foam via Enzymatic Degradation
  15. The Linear Viscoelastic Behavior of a Series of 3-Hydroxybutyrate-based Copolymers
  16. New Developments in Biodegradable Starch-based Nanocomposites
  17. Viscous Properties of Thermoplastic Starches from Different Botanical Origin
  18. Thermoplastic Foams from Zein and Gelatin
  19. Improvement of the Mechanical Properties of Soy Protein Isolate Based Plastics through Formulation and Processing
  20. Biocomposites Based on Bacterial Cellulose and Apple and Radish Pulp
  21. Preparation and Properties of Metallocene-catalyzed PE/Starch Nanocomposites: Role of Nanocompatibilizer
  22. Evaluation of Properties and Biodeterioration Potential of Polyethylene and Aliphatic Polyester Blends
  23. PPS News
  24. PPP News
  25. Seikei-Kakou Abstracts
  26. Seikei-Kakou Abstracts
https://doi.org/10.3139/217.2070

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Special Issue on Biobased Polymers
  5. Invited Papers
  6. Crystallization and Mechanical Propertiesof Poly (D, L) Lactide-based Blown Films
  7. Rheological Behavior and Modeling of Thermal Degradation of Poly(∊-Caprolactone) and Poly(L-Lactide)
  8. Rheological Evaluation and Observations of Extrusion Instabilities of Biodegradable Polyesters
  9. Biaxial Orientation of Polylactide/Thermoplastic Starch Blends
  10. Effects of Starch Types on Mechanical Properties of Poly(lactic acid)/Starch Composites
  11. Solid and Microcellular Polylactide-Carbon Nanotube Nanocomposites
  12. Tapioca Starch-poly (lactic acid)-based Nanocomposite Foams as Affected by Type of Nanoclay
  13. Injection Molded Solid and Microcellular Polylactide Compounded with Recycled Paper Shopping Bag Fibers
  14. Fabrication of Porous 3-D Structure from Poly(L-lactide)-based Nanocomposite Foam via Enzymatic Degradation
  15. The Linear Viscoelastic Behavior of a Series of 3-Hydroxybutyrate-based Copolymers
  16. New Developments in Biodegradable Starch-based Nanocomposites
  17. Viscous Properties of Thermoplastic Starches from Different Botanical Origin
  18. Thermoplastic Foams from Zein and Gelatin
  19. Improvement of the Mechanical Properties of Soy Protein Isolate Based Plastics through Formulation and Processing
  20. Biocomposites Based on Bacterial Cellulose and Apple and Radish Pulp
  21. Preparation and Properties of Metallocene-catalyzed PE/Starch Nanocomposites: Role of Nanocompatibilizer
  22. Evaluation of Properties and Biodeterioration Potential of Polyethylene and Aliphatic Polyester Blends
  23. PPS News
  24. PPP News
  25. Seikei-Kakou Abstracts
  26. Seikei-Kakou Abstracts
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