The rapid development of communication technology and electronic industry has brought unprecedented serious electromagnetic interference(EMI)and electromagnetic wave(EMW)pollution.Although EMI shields and EMW absorber...The rapid development of communication technology and electronic industry has brought unprecedented serious electromagnetic interference(EMI)and electromagnetic wave(EMW)pollution.Although EMI shields and EMW absorbers based on metal or magnetic materials were used to solve these problems,they have long been criticized for their high price,high density and easy corrosion.In order to achieve low density and efficient dissipation of electromagnetic energy,aerogels stand out among manifold materials.However,constructing aerogels with good EMI shielding or EMW absorption performance and acceptable mechanical properties is not an easy task.Burgeoning biopolymers,such as cellulose,lignin,chitin/chitosan and alginate,breathe new life into aerogels for high-efficiency EMW shielding and absorbing.Here,we reviewed the contributions of biopolymers in the fields of aerogels for EMW shielding and absorbing.At the same time,some challenges and outlook were also pointed out,aiming to promote the advance of aerogel-based EMI shields and EMW absorbers as well as the rational utilization of biopolymers.展开更多
At present,in order to overcome electromagnetic interference and prevent electromagnetic harm,the research of new and efficient electromagnetic wave absorbing materials has become the research focus in the field of ma...At present,in order to overcome electromagnetic interference and prevent electromagnetic harm,the research of new and efficient electromagnetic wave absorbing materials has become the research focus in the field of materials science.The one-dimensional structure can promote the impedance matching and attenuation characteristics of the absorbing materials.Electrospinning,as an effective method to prepare nanofibers with high length-diameter ratio,has been widely concerned because it is suitable for struc-tural design of various materials.In this paper,the research progress and absorption properties of nano-fiber materials prepared by electrospinning combined with different processes are introduced.展开更多
基金supported by the National Key R&D Program of China (No.2021YFB3502500)the Natural Science Foundation of Shandong Province (Nos.2022HYYQ-014,ZR2016BM16)+3 种基金the Pro-Vincial Key Research and Development Program of Shandong (Nos.2019JZZY010312,2021ZLGX01)"20 Clauses about Colleges and Universities (new)" (Independent Training of Innovation Team)Program (2021GXRC036)the Shenzhen Municipal Special Fund for Guiding Local Scientific and Technological Development (China 2021Szvup071)the Qilu Young Scholar Program of Shandong University (No.31370082163127)。
文摘The rapid development of communication technology and electronic industry has brought unprecedented serious electromagnetic interference(EMI)and electromagnetic wave(EMW)pollution.Although EMI shields and EMW absorbers based on metal or magnetic materials were used to solve these problems,they have long been criticized for their high price,high density and easy corrosion.In order to achieve low density and efficient dissipation of electromagnetic energy,aerogels stand out among manifold materials.However,constructing aerogels with good EMI shielding or EMW absorption performance and acceptable mechanical properties is not an easy task.Burgeoning biopolymers,such as cellulose,lignin,chitin/chitosan and alginate,breathe new life into aerogels for high-efficiency EMW shielding and absorbing.Here,we reviewed the contributions of biopolymers in the fields of aerogels for EMW shielding and absorbing.At the same time,some challenges and outlook were also pointed out,aiming to promote the advance of aerogel-based EMI shields and EMW absorbers as well as the rational utilization of biopolymers.
基金supported by the National Key R&D Program of China (No.2021YFB3502500)Natural Science Foundation of Shandong Province (Nos.2022HYYQ-014,ZR2016BM16)+5 种基金the New 20 Funded Programs for Universities of Jinan (2021GXRC036)Provincial Key Research and Development Program of Shandong (2021ZLGX01)National Natural Science Foundation of China (No.22205131)Shenzhen municipal special fund for guiding local scientific and Technological Development (China 2021Szvup071)the Joint Laboratory Project of Electromagnetic Structure Technology (637-2022-70-F-037)Qilu Young Scholar Program of Shandong University (No.31370082163127).
文摘At present,in order to overcome electromagnetic interference and prevent electromagnetic harm,the research of new and efficient electromagnetic wave absorbing materials has become the research focus in the field of materials science.The one-dimensional structure can promote the impedance matching and attenuation characteristics of the absorbing materials.Electrospinning,as an effective method to prepare nanofibers with high length-diameter ratio,has been widely concerned because it is suitable for struc-tural design of various materials.In this paper,the research progress and absorption properties of nano-fiber materials prepared by electrospinning combined with different processes are introduced.
