Chinese Journal of Polymer Science

, Volume 37, Issue 12, pp 1273–1282 | Cite as

Studies on Rheological, Thermal, and Mechanical Properties of Polylactide/Methyl Methacrylate-Butadiene-Styrene Copolymer/Poly(propylene carbonate) Polyurethane Ternary Blends

  • Ji-Li Zhao
  • Hong-Wei Pan
  • Hui-Li Yang
  • Jun-Jia Bian
  • Hui-Liang ZhangEmail author
  • Ge GaoEmail author
  • Li-Song Dong


Polylactide (PLA), methyl methacrylate-butadiene-styrene copolymer (MBS), and poly(propylene carbonate) polyurethane (PPCU) were blended and subjected to blown film process. The rheological, mechanical, morphological, thermal, and crystalline properties of the PLA/MBS/PPCU ternary blends and the mechanical properties of the resulting films were studied. Results of mechanical test showed that PPCU and MBS could synergistically toughen PLA. The impact strength of 50/10/40 PLA/MBS/PPCU blend (74.7 kJ/m2) was about 7.5 times higher than that of the neat PLA (10.8 kJ/m2), and the elongation at break of 50/10/40 PLA/MBS/PPCU blend (276.5%) was higher by about 45 times that of PLA (6.2%). The tear strength of PLA/MBS/PPCU films was 20 kN/m higher than that of PLA, and the elongation at break (MD/TD) of 50/10/40 PLA/MBS/PPCU films was 271.1%/222.3%, whereas that of PLA was only 2.7%/3.0%. POM observations displayed that the density of spherulite nucleation increased and the size of crystalline particles decreased with the addition of MBS. With increasing PPCU content from 5% to 20%, the density of spherulite nucleation increased and the size of crystalline particles decreased continuously, but the nucleation density of spherulites was slightly lowered with increasing PPCU content from 30% to 40%. The PLA/MBS/PPCU films exhibited excellent mechanical properties, which expanded the application range of these biodegradable films.


Biodegradable Polylactide Poly(propylene carbonate) polyurethane Methyl methacrylate-butadiene-styrene copolymer Films 


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This work was financially supported by the National Science Foundation of Zhejiang Province of China (No. LQY19B040001), the fund of Science and Technology Bureau of Jilin Province of China (No. 20170204012SF), the Program of Changchun Science and Technology Bureau (No. 16CX23), and National Key Research and Development Program of China (No. 2016YFC0501402-5).


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Copyright information

© Chinese Chemical Society Institute of Chemistry, Chinese Academy of Sciences Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.College of ChemistryJilin UniversityChangchunChina
  2. 2.Department of ScienceBeihua UniversityJilinChina
  3. 3.Key Laboratory of Polymer EcomaterialsChinese Academy of Sciences, Changchun Institute of Applied ChemistryChangchunChina
  4. 4.Zhejiang Zhongke Applied Chemistry Technology Co., Ltd.HangzhouChina

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