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 Zhang; Ge Gao; Li-Song Dong

doi:10.1007/s10118-019-2276-2

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

ARTICLE | Updated：2021-02-18

- Studies on Rheological, Thermal, and Mechanical Properties of Polylactide/Methyl Methacrylate-Butadiene-Styrene Copolymer/Poly(propylene carbonate) Polyurethane Ternary Blends
- Studies on Rheological, Thermal, and Mechanical Properties of Polylactide/Methyl Methacrylate-Butadiene-Styrene Copolymer/Poly(propylene carbonate) Polyurethane Ternary Blends
- Chinese Journal of Polymer Science 2019年37卷第12期页码：1273-1282
- Affiliations：
  
  a.College of Chemistry, Jilin University, Changchun 130012, China
  b.Department of Science, Beihua University, Jilin 132013, China
  c.Key Laboratory of Polymer Ecomaterials, Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Changchun 130022, China
  d.Zhejiang Zhongke Applied Chemistry Technology Co., Ltd., Hangzhou 310000, China
- Author bio：
  
  hlzhang@ciac.ac.cn (H.L.Z.)
  gaoge@jlu.edu.cn (G.G.)
- Funds：
  
  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).
- DOI：10.1007/s10118-019-2276-2
  中图分类号：
- 收稿：2019-03-01，
  
  修回：2019-4-8，
  
  录用：2019-4-18，
  
  网络首发：2019-06-20，
  
  纸质出版：2019-12
- Accepted：
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Zhao, J. L.; Pan, H. W.; Yang, H. L.; Bian, J. J.; Zhang, H. L.; Gao, G.; Dong, L. S. Studies on rheological, thermal, and mechanical properties of polylactide/methyl methacrylate-butadiene-styrene copolymer/poly(propylene carbonate) polyurethane ternary blends. Chinese J. Polym. Sci. 2019, 37, 1273–1282.

Ji-Li Zhao, Hong-Wei Pan, Hui-Li Yang, et al. Studies on Rheological, Thermal, and Mechanical Properties of Polylactide/Methyl Methacrylate-Butadiene-Styrene Copolymer/Poly(propylene carbonate) Polyurethane Ternary Blends[J]. Chinese Journal of Polymer Science, 2019, 37(12): 1273-1282.
Zhao, J. L.; Pan, H. W.; Yang, H. L.; Bian, J. J.; Zhang, H. L.; Gao, G.; Dong, L. S. Studies on rheological, thermal, and mechanical properties of polylactide/methyl methacrylate-butadiene-styrene copolymer/poly(propylene carbonate) polyurethane ternary blends. Chinese J. Polym. Sci. 2019, 37, 1273–1282. DOI： 10.1007/s10118-019-2276-2.

Ji-Li Zhao, Hong-Wei Pan, Hui-Li Yang, et al. Studies on Rheological, Thermal, and Mechanical Properties of Polylactide/Methyl Methacrylate-Butadiene-Styrene Copolymer/Poly(propylene carbonate) Polyurethane Ternary Blends[J]. Chinese Journal of Polymer Science, 2019, 37(12): 1273-1282. DOI： 10.1007/s10118-019-2276-2.

摘要

Abstract

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/m

) was about 7.5 times higher than that of the neat PLA (10.8 kJ/m

)

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.

关键词

Keywords

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