Compatibility-tuned distribution of nanoparticles in co-continuous rubber structures toward microwave absorption enhancement
Article
Article Title | Compatibility-tuned distribution of nanoparticles in co-continuous rubber structures toward microwave absorption enhancement |
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ERA Journal ID | 201472 |
Article Category | Article |
Authors | Li, Lefan (Author), Zhao, Pengfei (Author), Luo, Yongyue (Author), Yu, Heping (Author), Tao, Jinlong (Author), He, Dongning (Author), Gong, Wei (Author), Li, Dejun (Author), Peng, Zheng (Author) and Wang, Zhifen (Author) |
Journal Title | RSC Advances: an international journal to further the chemical sciences |
Journal Citation | 7 (2), pp. 1093-1100 |
Number of Pages | 8 |
Year | 2017 |
Publisher | The Royal Society of Chemistry |
Place of Publication | United Kingdom |
ISSN | 2046-2069 |
Digital Object Identifier (DOI) | https://doi.org/10.1039/c6ra26155h |
Web Address (URL) | http://pubs.rsc.org/en/content/articlepdf/2017/ra/c6ra26155h |
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. |
Keywords | microwave absorbing materials: elastomeric composites; dielectric or/and magnetic loss nanoparticles |
ANZSRC Field of Research 2020 | 401807. Nanomaterials |
340399. Macromolecular and materials chemistry not elsewhere classified | |
Byline Affiliations | Chinese Academy of Tropical Agricultural Sciences, China |
Hainan University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q44y3/compatibility-tuned-distribution-of-nanoparticles-in-co-continuous-rubber-structures-toward-microwave-absorption-enhancement
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