CAJ | 학술논문

采用铁氧体和铁合金纳米晶材料组成的磁性吸收剂对回收的聚苯乙烯泡沫塑料进行复合电磁改性处理，得到聚苯乙烯一磁性吸收剂复合材料；使用微波矢量网络分析仪系统测量复合材料试样的复磁导率、复介电常数频谱特性及材料标样的电磁波吸收性能。结果表明，随磁性吸收剂含量增加，复合材料磁性和介电性增强，当磁性吸收剂质量含量达15％（质量分数）时，复合材料具有明显的吸波材料特性，在2-18GHz频段呈现多个共振型电磁能吸收峰，2GHZ附近的损耗吸收峰值达-12dB；电磁改性的聚苯乙烯复合材料在原有的隔热、隔音特性基础上可兼具吸波性能，成为一种颇具应用价值的多功能材料。
채용철양체화철합금납미정재료조성적자성흡수제대회수적취분을희포말소료진행복합전자개성처리，득도취분을희일자성흡수제복합재료；사용미파시량망락분석의계통측량복합재료시양적복자도솔、복개전상수빈보특성급재료표양적전자파흡수성능。결과표명，수자성흡수제함량증가，복합재료자성화개전성증강，당자성흡수제질량함량체15％（질량분수）시，복합재료구유명현적흡파재료특성，재2-18GHz빈단정현다개공진형전자능흡수봉，2GHZ부근적손모흡수봉치체-12dB；전자개성적취분을희복합재료재원유적격열、격음특성기출상가겸구흡파성능，성위일충파구응용개치적다공능재료。
The recycled polystyrene was modified by magnetic fillers composing of ferrite and iron-alloy. Complex permeability, complex permittivity and microwave absorbing capability of such polystyrene/magnetic filler composite were measured by vector-network-analyzer. Results show that magnetism and polarization become stronger when the content of magnetic filler becomes more. Good microwave absorbing capability presents when the mass content reaches 15%. A few peaks of microwave absorbing in 2-18GHz appear and the peak value around 2GHz is -12dB. The modified polystyrene composite becomes multi-functional material presenting heat insulation, sound insulation and microwave absorbing abilities.