Journal
NANOTECHNOLOGY
Volume 29, Issue 19, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aab243
Keywords
carbon fiber; wood fiber composite; electromagnetic interference shielding; mechanical properties
Funding
- Special Fund for Forest Scientific Research in the Public Welfare [201504501]
- Key Laboratory of Bio-based Material Science & Technology (Northeast Forestry University)
- Ministry of Education [SWZCL2016-3]
- Scientific Research Foundation of Zhejiang AF University [2014FR077]
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Carbon fiber (CF) reinforced polyacrylamide/wood fiber composite boards are fabricated by mechanical grind-assisted hot-pressing, and are used for electromagnetic interference (EMI) shielding. CF with an average diameter of 150 nm is distributed on wood fiber, which is then encased by polyacrylamide. The CF/polyacrylamide/wood fiber (CPW) composite exhibits an optimal EMI shielding effectiveness (SE) of 41.03 dB compared to that of polyacrylamide/wood fiber composite (0.41 dB), which meets the requirements of commercial merchandise. Meanwhile, the CPW composite also shows high mechanical strength. The maximum modulus of rupture (MOR) and modulus of elasticity (MOE) of CPW composites are 39.52 MPa and 5823.15 MPa, respectively. The MOR and MOE of CPW composites increased by 38% and 96%, respectively, compared to that of polyacrylamide/wood fiber composite (28.64 and 2967.35 MPa).
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