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| Study on Preparation of Paper-based Absorbing Material and Its Electromagnetic Properties |
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| Key Words:paper-based absorbing materials absorbing honeycomb electromagnetic parameters reflectivity |
| Author Name | Affiliation | | 程芳静 | 华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 | | 孙 耀 | 华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 | | 王 宜* | 华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 | | 宋 虹 | 华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 | | 耿 浩 | 华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 | | 胡 健 | 华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 |
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| Abstract:In this paper, the paper-based cellular absorbing material was prepared by using papermaking process. The chopped carbon fiber (CF), chopped silicon carbide fiber (SCF) and carbon nanotubes (CNT) were used as the absorbing agents, and PPTA fibrid (PPTA) was chosen as the base materials to prepare paper-based absorbing materials. The electromagnetic parameters and absorbing property of the paper-based absorbing materials with different types of absorbing agent and different absorbing agent contents were compared. The results showed that when absorbing agent content was in the range of 0.1%～50%, the real part of permittivity of the SCF-PPTA paper-based material was far lower than that of CF-PPTA or CNT-PPTA paper-based material. When the absorbing agent content was above 3%, the dielectric loss of CNT-PPTA paper-based material was larger than that of other two. When the thickness was in the range of 0 to 10 mm, abrovbing agent dosages varied from 1% to 20% the minimum reflectivity of CF, SCF and CNT paper-based materials were -15.08 dB（thickness was 2.45 mm and content of absorbing agent was 1%）, -28.49 dB（thickness 4.42 mm, absorbing agent 20%）and -13.69 dB （thickness 2.98 mm, absorbing agent 3%）respectively. |
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