Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 139, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2020.106143
Keywords
Electromagnetic interference shielding; Multifunctional sponges; Motion sensing; Thermal insulation
Funding
- Foundation of National Natural Science Foundation of China [51973173]
- Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province of China [2019JC11]
- Natural Science Foundation of Shaanxi Province [2020JQ-164]
- China Aerospace Science and Industry Corporation [2019-HT-XG]
- Foundation of Aeronautics Science Fund [2017ZF53071]
- Henan University of Science and Technology [2020-RSC01]
- School-enterprise Collaborative Innovation Fund for Graduate Students of Northwestern Polytechnical University [XQ201913]
- Undergraduate InnovationAMP
- Business Program in Northwestern Polytechnical University [S202010699483]
- Polymer Electromagnetic Functional Materials Innovation Team of Shaanxi Sanqin Scholars
Ask authors/readers for more resources
Although electrically conductive polymer composites (ECPCs) are promising in the application of electromagnetic interference (EMI) shielding, how to endow the ECPCs multifunctionality is still a huge challenge. In this work, the novel polyurethane@polydopamine@silver nanoparticles (PU@PDA@Ag) sponges with excellent compressibility, flexible motion sensing, outstanding thermal insulation and superior EMI shielding properties were successfully fabricated by a facile bio-response method, which could be obtained by following two steps: (i) PDA was decorated on the surface of PU sponges by dopamine self-polymerization. (ii) Ag nanoparticles were insitu grown on the surface of PU sponges by electroless plating. PU@PDA@Ag sponge had the maximum EMI shielding effectiveness (SE) of 84 dB, and the corresponding specific SE and absolute SE were 2625 dB cm(3) g(-1) and 5250 dB cm(2) g(-1), much higher than those of other shielding foams/sponges. Meanwhile, PU@PDA@Ag sponge possessed low thermal conductivity (52.72 mW/mK), excellent compression resilience and piezoresistive properties.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available