Advertisement

Journal of Polymers and the Environment

, Volume 27, Issue 2, pp 256–262 | Cite as

A Study on Mechanical and Thermal Properties of PLA/PEO Blends

  • Yoojun Eom
  • Bulim Choi
  • Su-il ParkEmail author
Original Paper
  • 36 Downloads

Abstract

Poly(lactic) acid (PLA) is recognized as one of the polymers with most potential in biodegradable packaging industries. However, PLA is too brittle to be used as thin films. To increase the flexibility of PLA, 1, 3, and 5 wt% of polyethylene oxide (PEO) having 100,000 Mw were added into PLA respectively. The blends were compounded and were extruded using a kneader and a twin-screw extruder. The mechanical and thermal properties of PLA blends were analyzed to prove the increase of ductility. In addition, hydrophilic properties, morphologies, and crystallization behaviors of PLA based films were investigated. The addition of PEO into PLA increased the elongation at break, Izod impact strength, hydrophilicity, and the degree of crystallinity, as well as decreased the glass transition temperature (Tg), melting temperature (Tm), cold crystallization temperature (Tcc), and tensile strength of PLA. Significantly, the elongation at break was increased by 4 times at 5 wt% PEO loading, while the tensile strength was decreased by 17% only. PLA based films were greatly increased in ductility by blending with PEO.

Keywords

Poly(lactic acid) Polyethlylene oxide Blend Ductility Mechanical property 

Notes

Acknowledgements

This work was supported by the Technology development Program(Grant No. S2330338) funded by the Ministry of SMEs and Startups MSS, Korea.

References

  1. 1.
    Burgos N, Tolaguera D, Fiori S, Jiménez A (2014) Synthesis and characterization of lactic acid oligomers: evaluation of performance as poly(lactic acid) plasticizers. J Polym Environ 22:227–235.  https://doi.org/10.1007/s10924-013-0628-5 CrossRefGoogle Scholar
  2. 2.
    Imran M, Revol-Junelles A-M, Martyn A et al (2010) Active food packaging evolution: transformation from micro- to nanotechnology. Crit Rev Food Sci Nutr 50:799–821.  https://doi.org/10.1080/10408398.2010.503694 CrossRefGoogle Scholar
  3. 3.
    Tien N-D, Sakurai S (2017) Hierarchical structures in poly(lactic acid)/poly(ethylene glycol) blends. Eur Polym J 89:381–398.  https://doi.org/10.1016/J.EURPOLYMJ.2017.02.012 CrossRefGoogle Scholar
  4. 4.
    Auras R, Harte B, Selke S (2004) An overview of polylactides as packaging materials. Macromol Biosci 4:835–864.  https://doi.org/10.1002/mabi.200400043 CrossRefGoogle Scholar
  5. 5.
    Kulinski Z, Piorkowska E (2005) Crystallization, structure and properties of plasticized poly(l-lactide). Polymer 46:10290–10300.  https://doi.org/10.1016/J.POLYMER.2005.07.101 CrossRefGoogle Scholar
  6. 6.
    Pivsa-Art W, Fujii K, Nomura K et al (2016) The effect of poly(ethylene glycol) as plasticizer in blends of poly(lactic acid) and poly(butylene succinate). J Appl Polym Sci.  https://doi.org/10.1002/app.43044
  7. 7.
    Chaiwutthinan P, Pimpan V, Chuayjuljit S, Leejarkpai T (2015) Biodegradable plastics prepared from poly(lactic acid), poly(butylene succinate) and microcrystalline cellulose extracted from waste-cotton fabric with a chain extender. J Polym Environ 23:114–125.  https://doi.org/10.1007/s10924-014-0689-0 CrossRefGoogle Scholar
  8. 8.
    Mohapatra AK, Mohanty S, Nayak SK (2014) Study of thermo-mechanical and morphological behaviour of biodegradable PLA/PBAT/layered silicate blend nanocomposites. J Polym Environ 22:398–408.  https://doi.org/10.1007/s10924-014-0639-x CrossRefGoogle Scholar
  9. 9.
    Chen R, Abdelwahab MA, Misra M, Mohanty AK (2014) Biobased ternary blends of lignin, poly(lactic acid), and poly(butylene adipate-co-terephthalate): the effeczt of lignin heterogeneity on blend morphology and compatibility. J Polym Environ 22:439–448.  https://doi.org/10.1007/s10924-014-0704-5 CrossRefGoogle Scholar
  10. 10.
    Jaffar Al-Mulla EA, Ibrahim NAB, Shameli K et al (2014) Effect of epoxidized palm oil on the mechanical and morphological properties of a PLA–PCL blend. Res Chem Intermed 40:689–698.  https://doi.org/10.1007/s11164-012-0994-y CrossRefGoogle Scholar
  11. 11.
    Hoidy WH, Al-Mulla EAJ, Al-Janabi KW (2010) Mechanical and thermal properties of PLLA/PCL modified clay nanocomposites. J Polym Environ 18:608–616.  https://doi.org/10.1007/s10924-010-0240-x CrossRefGoogle Scholar
  12. 12.
    Sheth M, Kumar RA, Dave V, et al (1997) Biodegradable polymer blends of poly(lactic acid) and poly(ethylene glycol). J Appl Polym Sci 66:1495–1505.  https://doi.org/10.1002/(SICI)1097-4628(19971121)66:8%3C1495::AID-APP10%3E3.0.CO;2-3 CrossRefGoogle Scholar
  13. 13.
    Li F-J, Liang J-Z, Zhang S-D, Zhu B (2015) Tensile properties of polylactide/poly(ethylene glycol) blends. J Polym Environ 23:407–415.  https://doi.org/10.1007/s10924-015-0718-7 CrossRefGoogle Scholar
  14. 14.
    Wang J, Zhai W, Zheng W (2012) Poly(ethylene glycol) grafted starch introducing a novel interphase in poly(lactic acid)/poly(ethylene glycol)/starch ternary composites. J Polym Environ 20:528–539.  https://doi.org/10.1007/s10924-012-0416-7 CrossRefGoogle Scholar
  15. 15.
    Nijenhuis AJ, Colstee E, Grijpma DW, Pennings AJ (1996) High molecular weight poly (L-lactide) and poly (ethylene oxide) blends: thermal characterization and physical properties. Polymer 37:5849–5857CrossRefGoogle Scholar
  16. 16.
    Anderson KS, Hillmyer MA (2004) The influence of block copolymer microstructure on the toughness of compatibilized polylactide/polyethylene blends. Polymer 45:8809–8823.  https://doi.org/10.1016/j.polymer.2004.10.047 CrossRefGoogle Scholar
  17. 17.
    Pasut G, Panisello A, Folch-Puy E et al (2016) Polyethylene glycols: an effective strategy for limiting liver ischemia reperfusion injury. World J Gastroenterol 22:6501–6508.  https://doi.org/10.3748/wjg.v22.i28.6501 CrossRefGoogle Scholar
  18. 18.
    Gajria AM, Davé V, Gross RA, McCarthy SP (1996) Miscibility and biodegradability of blends of poly(lactic acid) and poly(vinyl acetate). Polymer 37:437–444.  https://doi.org/10.1016/0032-3861(96)82913-2 CrossRefGoogle Scholar
  19. 19.
    Lu S, Zhang R, Wang X et al (2015) Effect of PEO molecular weight on the miscibility and dynamics in epoxy/PEO blends. Eur Phys J E 38:118.  https://doi.org/10.1140/epje/i2015-15118-0 CrossRefGoogle Scholar
  20. 20.
    Li F-J, Zhang S-D, Liang J-Z, Wang J-Z (2015) Effect of polyethylene glycol on the crystallization and impact properties of polylactide-based blends. Polym Adv Technol 26:465–475.  https://doi.org/10.1002/pat.3475 CrossRefGoogle Scholar
  21. 21.
    Bailey FE (Frederick E, Koleske JV (1976) Poly(ethylene oxide). Academic Press, CambridgeGoogle Scholar
  22. 22.
    Garlotta D (2001) A literature review of poly(lactic acid). J Polym Environ 9:63–84.  https://doi.org/10.1023/A:1020200822435 CrossRefGoogle Scholar
  23. 23.
    Farah S, Anderson DG, Langer R (2016) Physical and mechanical properties of PLA, and their functions in widespread applications—a comprehensive review. Adv Drug Deliv Rev 107:367–392.  https://doi.org/10.1016/j.addr.2016.06.012 CrossRefGoogle Scholar
  24. 24.
    Ljungberg N, Andersson T, Wesslén B (2003) Film extrusion and film weldability of poly(lactic acid) plasticized with triacetine and tributyl citrate. J Appl Polym Sci 88:3239–3247.  https://doi.org/10.1002/app.12106 CrossRefGoogle Scholar
  25. 25.
    Russo P, Cammarano S, Bilotti E et al (2014) Physical properties of poly lactic acid/clay nanocomposite films: effect of filler content and annealing treatment. J Appl Polym Sci.  https://doi.org/10.1002/app.39798
  26. 26.
    Sungsanit K, Kao N, Bhattacharya SN (2012) Properties of linear poly(lactic acid)/polyethylene glycol blends. Polym Eng Sci 52:108–116.  https://doi.org/10.1002/pen.22052 CrossRefGoogle Scholar
  27. 27.
    Ljungberg N, Wesslén B (2004) Thermomechanical film properties and aging of blends of poly(lactic acid) and malonate oligomers. J Appl Polym Sci 94:2140–2149.  https://doi.org/10.1002/app.21100 CrossRefGoogle Scholar
  28. 28.
    Park B-S, Song JC, Park DH, Yoon K-B (2012) PLA/chain-extended PEG blends with improved ductility. J Appl Polym Sci 123:2360–2367.  https://doi.org/10.1002/app.34823 CrossRefGoogle Scholar
  29. 29.
    Ma Y, Cao X, Feng X et al (2007) Fabrication of super-hydrophobic film from PMMA with intrinsic water contact angle below 90°. Polymer 48:7455–7460.  https://doi.org/10.1016/J.POLYMER.2007.10.038 CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of PackagingYonsei UniversityWonjuRepublic of Korea

Personalised recommendations