Li, Lefan and Zhao, Pengfei and Luo, Yongyue and Yu, Heping and Tao, Jinlong and He, Dongning and Gong, Wei and Li, Dejun and Peng, Zheng and Wang, Zhifen (2017) Compatibility-tuned distribution of nanoparticles in co-continuous rubber structures toward microwave absorption enhancement. RSC Advances, 7 (2). pp. 1093-1100.
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Abstract
Development of novel and versatile approaches to engineer composites with light density, broad effective bandwidth and high microwave absorption (MA) capacity is of great importance. Here, co-continuous natural rubber/epoxidized natural rubber (NR/ENR) blends with a selective distribution of conductive carbon black nanoparticles (CCBs), have been fabricated by tow-roll mixing. ENR with abundant epoxide groups shows inferior wettability to CCB than NR, which is responsible for the preferential location of CCB in the NR/ENR blend. Increasing the epoxidation level of ENR promotes the preferential location of CCB and creates stronger dielectric loss, thus enhancing the MA properties of CCB/NR/ENR composites. When the epoxidation level increases to 40 mol%, the MA capacity of the composite has been significantly enhanced by 40%. Meanwhile, the qualified frequency bandwidth (RL < −10 dB) of composites with ENR is 85% broader than that of CCB/NR composites. Such a novel approach of compatibility-tuned nanoparticles distribution in co-continuous rubber blends will significantly promote the multi-functional use of rubber and carbonaceous resources.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Published version made available under Creative Commons Attribution License. |
| Faculty/School / Institute/Centre: | Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials |
| Date Deposited: | 10 Jul 2017 04:45 |
| Last Modified: | 23 Apr 2018 03:22 |
| Uncontrolled Keywords: | microwave absorbing materials: elastomeric composites; dielectric or/and magnetic loss nanoparticles |
| Fields of Research : | 10 Technology > 1007 Nanotechnology > 100708 Nanomaterials 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030302 Nanochemistry and Supramolecular Chemistry |
| Socio-Economic Objective: | E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences |
| Identification Number or DOI: | 10.1039/c6ra26155h |
| URI: | http://eprints.usq.edu.au/id/eprint/32669 |
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