Citation: SUN Bin, LIU Yanlong, BIAN Xinchao, ZHANG Bao, ZHOU Linyao, FENG Lidong, LI Gao, CHEN Zhiming. Preparation of High Heat Resistance Polylactide by Stereocomplexation[J]. Chinese Journal of Applied Chemistry, ;2016, 33(9): 1033-1039. doi: 10.11944/j.issn.1000-0518.2016.09.150456 shu

Preparation of High Heat Resistance Polylactide by Stereocomplexation

SUN Bin ^a,b,c ,
LIU Yanlong ^a,b ,
BIAN Xinchao ^a,b,, ,
ZHANG Bao ^a ,
ZHOU Linyao ^a ,
FENG Lidong ^a,b ,
LI Gao ^a,, ,
CHEN Zhiming ^b

1.
a Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
2.
b Zhejiang Hisun Biomaterials Co., Ltd, Taizhou, Zhejiang 318000, China;
3.
c University of Chinese Academy of Sciences, Beijing 100039, China

Corresponding author: BIAN Xinchao, LI Gao,
Received Date: 22 December 2015
Available Online: 29 March 2016
Fund Project:

The stereocomplex powder was prepared by mixing the same amount of poly(L-lactide)(PLLA) and poly(D-lactide)(PDLA) resins at a relative low temperature and then was mixed with the nucleation agent and glass fiber. The mixture was molded in the injection machine, followed by annealing at different temperatures to form the blends with high heat resistance. The vicat softening temperature reached to 165℃ and the DSC results revealed that the blends were rich in stereocomplex and the enthalpy was as high as 27.6 J/g. Moreover, the tensile strength was increased greatly to 129 MPa.
- polylactide,
- heat resistance,
- stereocomplexation,
- crystallization,
- vicat softening temperature
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