Multifunctional Stiff Carbon Foam Derived from Bread.
The creation of stiff yet multifunctional three-dimensional porous carbon architecture at very low cost is still challenging. In this work, lightweight and stiff carbon foam (CF) with adjustable pore structure was prepared by using flour as the basic element via a simple fermentation and carbonization process. The compressive strength of CF exhibits a high value of 3.6 MPa whereas its density is 0.29 g/cm(3) (compressive modulus can be 121 MPa). The electromagnetic interference (EMI) shielding effectiveness measurements (specific EMI shielding effectiveness can be 78.18 dB·cm(3)·g(-1)) indicate that CF can be used as lightweight, effective shielding material. Unlike ordinary foam structure materials, the low thermal conductivity (lowest is 0.06 W/m·K) with high resistance to fire makes CF a good candidate for commercial thermal insulation material. These results demonstrate a promising method to fabricate an economical, robust carbon material for applications in industry as well as topics regarding environmental protection and improvement of energy efficiency.
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Ye
Y
Yuan
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Yujie
Y
Ding
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Chunhui
C
Wang
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Fan
F
Xu
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Zaishan
Z
Lin
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Yuyang
Y
Qin
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Ying
Y
Li
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Minglong
M
Yang
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Xiaodong
X
He
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.|Division of Aircraft Dynamics and Control, School of Astronautics, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Qingyu
Q
Peng
Center for Composite Materials and Structures, Harbin Institute of Technology , Harbin 150080, People's Republic of China.
Yibin
Y
Li
EMI shielding; carbon foam; mechanically stiff; thermal insulating; tunable pore structure