Compatibility-tuned distribution of nanoparticles in co-continuous rubber structures toward microwave absorption enhancement

Article


Li, Lefan, Zhao, Pengfei, Luo, Yongyue, Yu, Heping, Tao, Jinlong, He, Dongning, Gong, Wei, Li, Dejun, Peng, Zheng and Wang, Zhifen. 2017. "Compatibility-tuned distribution of nanoparticles in co-continuous rubber structures toward microwave absorption enhancement." RSC Advances: an international journal to further the chemical sciences. 7 (2), pp. 1093-1100. https://doi.org/10.1039/c6ra26155h
Article Title

Compatibility-tuned distribution of nanoparticles in co-continuous rubber structures toward microwave absorption enhancement

ERA Journal ID201472
Article CategoryArticle
AuthorsLi, 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 TitleRSC Advances: an international journal to further the chemical sciences
Journal Citation7 (2), pp. 1093-1100
Number of Pages8
Year2017
PublisherThe Royal Society of Chemistry
Place of PublicationUnited Kingdom
ISSN2046-2069
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.

Keywordsmicrowave absorbing materials: elastomeric composites; dielectric or/and magnetic loss nanoparticles
ANZSRC Field of Research 2020401807. Nanomaterials
340399. Macromolecular and materials chemistry not elsewhere classified
Byline AffiliationsChinese Academy of Tropical Agricultural Sciences, China
Hainan University, China
Institution of OriginUniversity of Southern Queensland
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