Crystallization morphology and crystallization kinetics of poly(lactic acid): effect of <Emphasis Type="Italic">N</Emphasis>-Aminophthalimide as nucleating agent |
| |
| Authors: | Jing Li Dakai Chen Baozhu Gui Minghao Gu Jie Ren |
| |
| Affiliation: | (1) Institute of Nano- and Bio-Polymeric Materials, School of Material Science and Engineering, Tongji University, Shanghai, 200092, China;(2) Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai, 200092, China;(3) Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; |
| |
| Abstract: | The effect of N-Aminophthalimide compound (NA-S) as nucleating agent on crystallization behavior and morphology of poly(lactic acid) was
studied. With polarized optical microscope (POM), the unique phenomena of nucleation and epitaxial crystallization of PLA/NA-S
system were observed. Dynamic morphology of crystallization was also studied by POM to investigate the relationship between
growth behavior of PLA and nucleating agent. Isothermal and non-isothermal crystallization behavior of PLA were studied by
differential scan calorimeter (DSC). When nucleating agent was added, a new peak appeared in wide angle X-ray diffraction
(WAXD) compared with pure PLA, indicating the nucleating effect of NA-S on crystallization of PLA. All the results indicate
that the nucleating agent of NA-S shows obvious nucleating effect on isothermal crystallization above 120 °C and in non-isothermal
crystallization after it is added in PLA, that is, the induction crystallization time is reduced, the crystallization rate
and nucleation density of PLA are increased. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
