CAJ | 학술논문

以炭纤维网布为基体,通过电镀工艺在炭纤维网布上形成Ni催化剂膜,采用化学气相沉积方法原位合成炭纤维网布/螺旋纳米碳纤维复合材料,采用扫描电镜（SEM）、Raman光谱和X射线衍射仪（XRD）对生长的螺旋纳米碳纤维的形态和结构进行表征。考察主要反应因素—温度对螺旋纳米碳纤维生长的影响,并就生长过程进行了讨论;对其制备出的炭纤维网布/螺旋纳米碳纤维复合材料在8.2～12.4GHz频段的电磁性能进行分析,考察其吸波性能。结果表明制备出的炭纤维网布/螺旋纳米碳纤维复合材料比单一的螺旋纳米碳纤维具有更高的电磁损耗角正切,电损耗正切值由0.7提高到3.8,表明复合材料具有较好的吸波性能。
이탄섬유망포위기체,통과전도공예재탄섬유망포상형성Ni최화제막,채용화학기상침적방법원위합성탄섬유망포/라선납미탄섬유복합재료,채용소묘전경（SEM）、Raman광보화X사선연사의（XRD）대생장적라선납미탄섬유적형태화결구진행표정。고찰주요반응인소—온도대라선납미탄섬유생장적영향,병취생장과정진행료토론;대기제비출적탄섬유망포/라선납미탄섬유복합재료재8.2～12.4GHz빈단적전자성능진행분석,고찰기흡파성능。결과표명제비출적탄섬유망포/라선납미탄섬유복합재료비단일적라선납미탄섬유구유경고적전자손모각정절,전손모정절치유0.7제고도3.8,표명복합재료구유교호적흡파성능。
The carbon fiber web/microcoiled carbon nanofibers composite was in-situ prepared by CVD method with carbon fiber web as substrate,on which Ni film was electroplated as catalyst.The morphology and structure of as-grown microcoiled carbon nanofibers was characterized by SEM,Raman spectrum and XRD in detail.The effect of main process parameter,reaction temperature,on the growth of the microcoiled carbon nanofibers was studied by experiments.Furthermore,the electromagnetic performance of the carbon fiber web/microcoiled carbon nanofibers composite was measured to demonstrate their wave absorbing ability by wave-guide in the frequency range of 8.2-12.4GHz.The results demonstrated that the carbon fiber web/microcoiled carbon nanofibers composite with idea morphology and structure have higher tanδε value 3.8 than 0.7 of microcoiled carbon nanofibers,in other words,carbon nanofibers/ carbon fiber web composite have high microwave absorbing ability.