| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Preparation of Microcellular Foam for Polycarbonate-Polyolefin Elastomer Blends |
| GONG Liwen, ZHENG Xiaoping, WU Zhi'ang, WANG Fan, YANG Zicheng, ZHANG Li, BAO Jinbiao
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| School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, China |
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Abstract In this paper, polycarbonate-polyolefin(PC/POE) elastomer blend rigid foaming materials with multi-hole open-cell structure were successfully prepared via supercritical carbon dioxide intermittent foaming method. The morphology of PC/POE blends was observed by scanning electron microscopy. It was found that the POE particles were evenly distributed in the PC matrix in the form of spherical particles, showing a typical “island-sea” structure. The size of spherical particles increased with the increase of POE content. Moreover, the effects of POE content, CO2 saturation pressure and saturation temperature on the cell morphology and porosity of PC/POE foams were systematically studied. The results show that the open-cell pore structure is obvious when POE content is nearly 20wt%, saturation pressure is above 15 MPa, the temperature reaches 150 ℃, especially when the pressure rises to 18 MPa, the nucleation point is the largest and the pore opening rate is the largest.
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Published: 26 April 2020
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| Fund:This work was financially supported by the Natural Science Foundation of Ningbo City (2017A610045), and K.C. Wong Magna Fund in Ningbo University. |
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Corresponding Authors:
Jinbiao Baoreceived his Ph.D. degree in University of Lorraine in France in 2012. He is currently an associate professor in Ningbo University. His research inte-rests are polymer materials processing, green preparation and application of polymer microporous materials.
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| About author:: Liwen Gongreceived her B.E. degree in June 2016 from East China University of Science and Technology. From September 2017 to June 2020, she educated and learned at the School of Material Science and Chemical Engineering, Ningbo University, focusing on the research of polymer materials processing. |
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2020, Vol. 34 
