材料科学
复合材料
聚丙烯酰胺
复合数
电磁干扰
电磁屏蔽
杨氏模量
纤维
电磁干扰
电子工程
高分子化学
工程类
作者
Baokang Dang,Yipeng Chen,Ning Yang,Bin Chen,Jiayi Zhang
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2018-03-16
卷期号:29 (19): 195605-195605
被引量:22
标识
DOI:10.1088/1361-6528/aab243
摘要
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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