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| Content Provider | Springer Nature Link |
|---|---|
| Author | Qiu, Bi wei Chen, Feng Shangguan, Yong gang Lin, Yu Zheng, Qiang |
| Copyright Year | 2015 |
| Abstract | A series of ternary blends of polypropylene/ethylene-propylene random copolymer/ethylene-propylene segmented copolymer (HPP/EPR/EbP) whose microstructures are similar to those of impact polypropylene copolymer (IPC) were prepared in order to systematically investigate the effects of composition on microstructure and crystallization behavior of IPC. The observation of primary phase morphology reveals that the dispersed phase with core-shell structure could be rebuilt in certain composition and excessive EPR leads to a bicontinuous phase structure in ternary blends. After undergoing same quiescent crystallization including isothermal and non-isothermal crystallization, these blend samples exhibit special composition-dependent melting behavior, i.e., the melting point increases markedly with the increase of EPR content until it turns down at a critical content (about 30 wt%). The crystallization behavior is mainly ascribed to the different nucleation abilities. It is suggested that although the compatibility between EPR and HPP components becomes worse with the increase of EPR content due to the increased interfacial area and the decreased concentration of EbP, higher EPR content in the blend facilitates to heterogeneous nucleation except for the appearance of obvious bicontinuous phase structure. |
| Starting Page | 95 |
| Ending Page | 108 |
| Page Count | 14 |
| File Format | |
| ISSN | 02567679 |
| Journal | Chinese Journal of Polymer Science |
| Volume Number | 33 |
| Issue Number | 1 |
| e-ISSN | 14396203 |
| Language | English |
| Publisher | Chinese Chemical Society and Institute of Chemistry, CAS |
| Publisher Date | 2014-11-25 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Core-shell dispersed phase Microstrcture Crystallization Nucleation Polymer Sciences Industrial Chemistry/Chemical Engineering Characterization and Evaluation of Materials Condensed Matter Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Chemical Engineering Polymers and Plastics |
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