Abstract

The blends of polylactide with ethyl cellulose and chitosan are obtained in a Brabender mixer under conditions of high temperature shear deformations at different initials ratios of reagents. The investigation of physicomechanical properties of compositions has shown that systems have high rigidity. To improve the elasticity poly(ethylene glycol) (PEG) and high-molecular polyolefin polydecene are added into compositions. It has turned out that polydecene weakly affects the mechanical characteristics, while PEG leads to noticeable increase in elongation at break. Biodegradability of compositions obtained is investigated by weight loss of samples after holding in soil, tests on fungus resistance, and analysis of film morphology by scanning electron microscopy after holding in soil. It is found that introduction of third component (PEG) leads to increase in composition biodegradability.

Highlights

  • High-impact poly(lactic acid)/poly(ethylene octene) blends prepared by reactive blending // Polym

  • Morphology and properties of polylactide modified by thermal treatment, filling with layered silicates and plasticization // Polymer. 2004

  • The blends of polylactide with ethyl cellulose and chitosan are obtained in a Brabender mixer under conditions of high temperature shear deformations at different initials ratios of reagents

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Summary

Introduction

Study of biodegradable polylactide/poly(butylene carbonate) blend // J. Feng Y., Hu Y., Yin J., Zhao G., Jiang W. High-impact poly(lactic acid)/poly(ethylene octene) blends prepared by reactive blending // Polym. Ies and mechanical properties of polylactide/thermoplastic polyurethane elastomer blends // Bitinis N., Verdejo R., Cassagnau P., Lopez-Manchado M.A. Structure and properties of polylactide/natural rubber blends // Mater.

Results
Conclusion

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