Improve the Thermal and Mechanical Properties of Poly(L-lactide) by Forming Nanocomposites with Pristine Vermiculite

Hai-mu Ye; Kai Hou; Qiong Zhou

doi:10.1007/s10118-016-1724-5

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Improve the Thermal and Mechanical Properties of Poly(L-lactide) by Forming Nanocomposites with Pristine Vermiculite

Updated：2021-06-21

- Improve the Thermal and Mechanical Properties of Poly(L-lactide) by Forming Nanocomposites with Pristine Vermiculite
- Improve the Thermal and Mechanical Properties of Poly(L-lactide) by Forming Nanocomposites with Pristine Vermiculite
- Chinese Journal of Polymer Science 2016年34卷第1期页码：1-12
- Affiliations：
  
  Department of Materials Science and Engineering, Beijing Key Laboratory of Failure, Corrosion and Protection of Oil/Gas Facilities, China University of Petroleum, Beijing 102249, China
- Author bio：
  
  **Hai-mu Ye (叶海木), E-mail: yehaimu@cup.edu.cn
- Funds：
  
  National Natural Science Foundation of China(21304108);Science Foundation of China University of Petroleum-Beijing(YJRC-2013-14;2462013BJRC001)
- DOI：10.1007/s10118-016-1724-5
  中图分类号：
- 收稿：2015-06-01，
  
  修回：2015-08-20，
  
  录用：2015-08-23，
  
  纸质出版：2016-01
- Accepted：
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Hai-mu Ye, Kai Hou, Qiong Zhou. Improve the Thermal and Mechanical Properties of Poly(L-lactide) by Forming Nanocomposites with Pristine Vermiculite[J]. Chinese Journal of Polymer Science, 2016,34(1):1-12.

Hai-mu Ye, Kai Hou, Qiong Zhou. Improve the Thermal and Mechanical Properties of Poly(L-lactide) by Forming Nanocomposites with Pristine Vermiculite[J]. Chinese Journal of Polymer Science, 2016, 34(1): 1-12.
Hai-mu Ye, Kai Hou, Qiong Zhou. Improve the Thermal and Mechanical Properties of Poly(L-lactide) by Forming Nanocomposites with Pristine Vermiculite[J]. Chinese Journal of Polymer Science, 2016,34(1):1-12. DOI： 10.1007/s10118-016-1724-5.

Hai-mu Ye, Kai Hou, Qiong Zhou. Improve the Thermal and Mechanical Properties of Poly(L-lactide) by Forming Nanocomposites with Pristine Vermiculite[J]. Chinese Journal of Polymer Science, 2016, 34(1): 1-12. DOI： 10.1007/s10118-016-1724-5.

摘要

Abstract

Poly(L-lactide) (PLLA)/pristine vermiculite nanocomposites were prepared by melt blending in a twin-screw extruder

and the detailed information of vermiculite dispersion state and effect of vermiculite on thermal and mechanical properties were systematically studied. The results show that the dispersion of vermiculite in the matrix is quite well when the loading content does not exceed 3 wt%. Pristine vermiculite can obviously improve the melt-crystallization temperature during the nonisothermal crystallization. Both crystallization time span and spherulitic size of PLLA decrease with the increasing amount of vermiculite under isothermal crystallization condition by enhancing the primary nucleation of PLLA. And the adding vermiculite can also improve the tensile modulus and Izod impact strength of PLLA. The intrinsic mechanism for the nucleating effect of vermiculite on PLLA is proposed to be the epitaxial crystallization and specific interaction between vermiculite and PLLA.

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