The Studies of the Electromagnetic Interference Shielding Effectiveness and properties of Acrylonitrile-Butadiene-Styrene (ABS)/Stainless Steel Fiber Composites

• Main Authors: KUO FANG-LING, 郭芳伶
• Other Authors: Chi-Yuan Huang
• Format: Others
• Language: en_US
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/49995117920418339133

碩士 === 大同大學 === 材料工程研究所 === 90 === In this study, the stainless steel fibers (SSF) and carbon fibers (CF) were added into Acrylonitrile-Butadiene-Stryene (ABS) to form conductive composites. The effect of fiber content, fiber length, kind of fiber and coupling agent on the electromagnetic interference (EMI) shielding effectiveness (SE) of composites were investigated. The stainless steel fibers have electrically conductivity and good toughness which could be prevented the fibers to break during processing. The fiber content and the characteristics of composite material affect the properties of the EMI SE and the impact strength. The results show that the more the fibers were added, the higher EMI SE was attained. The result also shows that the higher the aspect ratio of the fiber was, the higher the EMI SE was attained. In this investigation, the stainless steel fibers (aspect ratio = 166) at 4phr content gave EMI SE of 7 dBm, whereas the stainless steel fiber at 16phr content gave EMI SE of 28dBm. The resistivity of ABS/SSF (with coupling agent) was higher than that of ABS/SSF (without coupling agent) for the reason of contact electrical resistance. When the SSF (3mm) content of ABS/SSF (3mm) composite was 4phr, the reflection loss was higher than that of the other contents in the composites. The reflection loss of ABS/SSF (3mm, without coupling agent) was higher than that of ABS/SSF (5mm, without coupling agent) at the same loading of SSF.