摘要
以苯胺（ANI）、羰基铁粉（CIP）和甲基丙烯酸甲脂（MMA）等为原料，采用化学氧化法和原位复合技术制备了掺杂态聚苯胺（PANI）、羰基铁粉／聚甲基丙烯酸甲脂（CIP／PMMA）和羰基铁粉／聚甲基丙烯酸甲脂／聚苯胺（CIP／PMMA／PANI）吸波剂，用XRD、SEM、TEM表征了吸波剂的结构与形貌，通过矢量网络分析仪测定吸波剂的电磁参数表明CIP／PMMA／PANI复合吸波剂既有电损耗又有磁损耗。在2～18GHz频段内，材料厚度为1．0mm时，计算出其最小反射率达-11．26dB，反射率小于-10dB的带宽为9．2GHz、小于-8dB的带宽达14GHz，计算结果表明该复合吸波剂具有良好的宽频吸波性能。
The conductive poly-aniline （PANI） was synthesized by the chemical oxidation method, and the composite absorbents of carbonyl iron powder/polymethacrylate （CIP/PMMA） with core-shell structure and carbonyl iron powder/ polymethacrylate/poly-aniline （CIP/PMMA/PANI） with two coating structure were prepared by in-situ composite technique, using aniline, carbonyl iron powder and methacrylate. The structure and morphology of three absorbents were characterized by XRD, SEM and TEM. The electromagnetic parameters of them were measured by using vector network analyzer, and the results show that the CIP/PMMA/PANI composite absorbent has both electric losses and magnetic losses. When the thickness of the material is 1.0 mm, its least reflectivity of computing is -11.26 dB in 2-18 GHz frequency range, and the bandwidths for -10 dB and for -8 dB are respectively 9. 2 GHz and 14 GHz. The computing results show that the composite absorbent has a better broad-frequency absorbing property.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2008年第4期35-39,共5页
Acta Materiae Compositae Sinica
基金
核资源与环境教育部重点实验室开放基金项目(070708)
江苏省无机及其复合新材料重点实验室开放研究课题(WjjqfhxC200502)
关键词
羰基铁粉
甲基丙烯酸甲脂
苯胺
复合吸波剂
性能
carbonyl iron powder
methacrylate
aniline
composite absorbents
property
