| Study on Properties of Electromagnetic Shielding Silicone Rubber Filled with Silver-coated Aluminum Powder Modified by Coupling Agents |
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| DOI： |
| Key Words: coupling agent；silver-coated aluminum powder；electromagnetic shielding silicone rubber；salt brume test |
| Author Name | Affiliation | | SUN Jian-sheng | Institute 53 of China’s Ordnance Industry Group | | YANG Feng-fan | Institute 53 of China’s Ordnance Industry Grou；Shandong University | | XU Qin-tao | Institute 53 of China’s Ordnance Industry Group | | ZHAO Xiu-fen | Institute 53 of China’s Ordnance Industry Group | | Liu Jing | Institute 53 of China’s Ordnance Industry Group | | YU Wan-zeng | Institute 53 of China’s Ordnance Industry Group | | LI Ji-hong | Institute 53 of China’s Ordnance Industry Group |
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| Abstract: |
| The effects of the types and addition level of coupling agents，and salt brume test on the properties of electromagnetic shielding silicone rubber filled with silver-coated aluminum powder were investigated.The results showed that，the volume resistivity of silicone rubber modified by coupling agent KH-550 and NDZ-105 was increased，the physical properties was deteriorated，and the salt brume resistance was not improved obviously.The shielding effectiveness(SE) and salt brume resistance of silicone rubber modified by coupling agent VTPS were better.With 3 phr VTPS，the volume resistivity reached 5.7×10-3 Ω·cm，the SE was greater than 78 dB at the frequency from 30 MHz to 10 GHz，and the maximum of SE was 129.4 dB at 1 GHz.After salt brume test,the volume resistivity was 6.7×10-3 Ω·cm，the SE was still greater than 76 dB and reached the maximum of 128.6 dB at 1 GHz. |
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