CN102010577B - Method for preparing rare earth-doped ferrite/polythiophene/carbon nano tube microwave absorbent - Google Patents

Method for preparing rare earth-doped ferrite/polythiophene/carbon nano tube microwave absorbent Download PDF

Info

Publication number
CN102010577B
CN102010577B CN 201010568520 CN201010568520A CN102010577B CN 102010577 B CN102010577 B CN 102010577B CN 201010568520 CN201010568520 CN 201010568520 CN 201010568520 A CN201010568520 A CN 201010568520A CN 102010577 B CN102010577 B CN 102010577B
Authority
CN
Grant status
Grant
Patent type
Prior art keywords
ferrite
solution
rare earth
polythiophene
nitrate
Prior art date
Application number
CN 201010568520
Other languages
Chinese (zh)
Other versions
CN102010577A (en )
Inventor
洪小伟
谢宇
魏娅
Original Assignee
南昌航空大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Abstract

The invention relates to a method for preparing a rare earth-doped ferrite/polythiophene/carbon nano tube microwave absorbent. Barium nitrate, ferric nitrate, neodymium nitrate, lanthanum nitrate, thiophene monomers and carbon nano tubes serve as main raw materials. Rare earth-doped ferrite is prepared by adopting a sol-gel auto-combustion method, and then a rare earth-doped ferrite/polythiophene/carbon nano tube composite is prepared by adopting in-situ chemical oxidation. The microwave absorbent is mainly used for solving the problems of narrow band, high density, weak absorption and high thickness of a single ferrite wave absorption material, and is ideal.

Description

稀土掺杂铁氧体/聚噻吩/碳纳米管微波吸收剂的制备方 Rare earth doped ferrite / polythiophene / preparing carbon nanotubes microwave absorbent

law

技术领域 FIELD

[0001 ] 本发明涉及一种吸收剂的制备方法,尤其涉及一种稀土掺杂铁氧体/聚噻吩/碳纳米管微波吸收剂的制备方法。 [0001] The present invention relates to a method for preparing absorbent, particularly, to a rare earth doped ferrite / polythiophene / carbon nanotubes prepared microwave absorbent.

背景技术 Background technique

[0002] 吸波材料是能吸收投射到它表面的电磁波能量,并通过材料的损耗转变为热能的一类材料。 [0002] absorbing material which is capable of absorbing electromagnetic wave energy projected onto the surface and into a class of materials by thermal energy loss material. 从损耗机理上分类,吸波材料可分为电阻型、电介质型和磁介质型3大类。 From the classification loss mechanism, absorbing materials can be divided into a resistive type, the dielectric and magnetic media type three categories. 在同样性能条件下,铁氧体一般要比电介质吸波体薄,吸收效果好、成本低,因而应用广泛、发展较快。 Under the same performance conditions, generally higher than ferrite thin dielectric absorber, good absorption, and low cost, which are widely used, rapid development.

[0003] 目前,在诸多种类的吸波材料中,铁氧体是研究得比较成熟、应用比较广泛的一种吸波材料,一般是指铁族的和其他一种或多种适当的金属元素复合而成的氧化物。 [0003] At present, many types of absorbing materials, the ferrite is studied more mature and widely as a absorbing material, generally refers to the iron group, and one or more other suitable metal element compounded oxides. 它在高频段具有较高的磁导率,吸收效率高,频带宽,制备成本低,具有一定的吸波性能。 It has a high permeability at high frequency, high absorption efficiency, bandwidth, low production cost, has a certain absorbing properties. 铁氧体包括尖晶石型,石榴石型和磁铅石型,它们都具有旋磁性,这是吸波材料产生电磁损耗的重要性能。 Comprising spinel ferrite, garnet and magnetoplumbite type, they all have a magnetic spin, which generates an electromagnetic absorbing material is important to performance loss. 许多研究表明,3种铁氧体中以六角晶系磁铅石型铁氧体的吸波性能最好,因为六角晶系磁铅石型铁氧体具有片状结构,而片状是吸收性能的最佳形状。 Many studies show that the three ferrite absorbing performance to hexagonal magnetoplumbite type ferrite is preferably, because of the hexagonal magnetoplumbite type ferrite having a sheet structure, and properties of the sheet-like absorbent is the best shape. 其次六角晶系磁铅石型铁氧体具有较高的磁性备向异性等效场,因而有较高的自然共振频率。 Secondly hexagonal magnetoplumbite type ferrite having high magnetic anisotropy Preparation equivalent field, hence the higher natural resonance frequency. 自然共振是铁氧体吸收电磁波的主要机制。 Natural resonance is the primary mechanism of electromagnetic wave absorption ferrite. 所谓自然共振是指铁氧体在不加外恒磁场的情况下,由入射的交变磁场和晶体的磁性各向异性等效场Hk共同作用产生的进动共振。 The so-called natural resonance refers to the ferrite without external constant magnetic field, the magnetic anisotropy field Hk equivalent by the incident alternating magnetic field and the crystals together to produce precession resonance. 当交变磁场的角频率ω和晶体的磁性各向异性等效场Hk所决定本征角频率的ω *k相等时,铁氧体吸波材料将大量吸收电磁波。 When the angular frequency [omega] and the crystal magnetic alternating magnetic field anisotropy field Hk equivalent determined eigen angular frequency ω * k are equal, ferrite absorber material absorbs electromagnetic waves.

[0004] 随着纳米材料的不断发展,纳米材料的制备方法也越来越多,为了保证铁氧体具有良好的吸波性能。 [0004] With the development of nano-materials, preparation of nano-materials are more and more, in order to ensure a ferrite having good absorbing properties. 制备纳米铁氧体的方法主要有:物理法和化学法。 The method of preparation of nano ferrite are: physical and chemical methods. 化学法主要有:溶胶-凝胶法、化学共沉淀法、水热合成法、微乳液法、自蔓延高温合成法,这些方法与传统铁氧体制备工艺相比具有低能耗、无环境污染、高质量等优点,所生产的铁氧化体粉料性能稳定、颗粒尺寸分布均勻、可用于制造高性能的铁氧体元件,具有广阔的应用前景。 Chemical methods are: sol - gel method, a chemical co-precipitation method, a hydrothermal synthesis method, a microemulsion method, SHS method, these methods with conventional ferrite has low energy consumption as compared to the preparation process, no environmental pollution, quality, etc., stable powder properties of the resulting oxidized iron, uniform particle size distribution, can be used to manufacture high-performance ferrite element, it has a broad application prospect.

[0005] 该M型钡铁氧体为磁铅石型铁氧体,对称性低,具有很高的磁晶各向异性场Ha,利用其自然共振可获得较高的复数磁导率,同时可以利用其自然共振吸收峰的重叠展宽吸收频带,能增强铁氧体的磁损耗。 [0005] The M type barium ferrite is a magnetoplumbite type ferrite, low symmetry, having a high magnetocrystalline anisotropy field Ha of, obtained using its natural resonance of the complex permeability higher, while can use its natural resonance absorption peak overlaps the absorption band broadening, can enhance the magnetic loss in the ferrite. 因此该掺杂铁氧体具有良好的频率特性和吸波性能。 Thus the ferrite doped with good frequency characteristics and absorbing performance. 聚噻吩是一种导电高分子,通过与碳纳米管nn共轭,增强其介电损耗能力,然后通过与掺杂铁氧体复合,结合两者的优势,则能拓宽吸收频带、提高吸波性能,从而能满足吸波材料所要求的“薄、轻、宽、强”的目标,制备出性能优越的微波吸收材料。 A polythiophene conductive polymer, carbon nanotubes by nn conjugated to enhance its ability to dielectric loss, and by doping with ferrite combining the advantages of both, the absorption band can be widened to improve the absorbing performance, which can meet the "thin, light, wide, strong" target absorbing material required to prepare superior performance microwave absorbing material.

发明内容 SUMMARY

[0006] 本发明的目的在于提供一种稀土掺杂铁氧体/聚噻吩/碳纳米管微波吸收剂的制备方法,现阶段制备的铁氧体微波吸收剂,存在一些缺陷,难以满足现代吸波材料的要求一频带宽、质量轻、吸收强、厚度薄。 [0006] The object of the present invention is to provide a rare earth doped ferrite / polythiophene / carbon nanotubes microwave absorbent preparation, ferrite microwave absorbent preparation stage, there are some defects, it is difficult to meet the modern suction a wave of material required bandwidth, light weight, strong absorption, thickness.

[0007] 本发明是这样来实现的,其特征是方法步骤为: [0007] The present invention is achieved, characterized in that the method steps:

[0008] A、将钡、铁、钕和镧硝酸盐溶于蒸馏水中,搅拌至溶解,得到澄清溶液; [0008] A, barium, iron, neodymium and lanthanum nitrate dissolved in distilled water, stirred to dissolution, to give a clear solution;

[0009] B、根据澄清溶液内硝酸根与柠檬酸的摩尔比1:3加入柠檬酸,得到棕红色溶液, 然后缓慢滴加氨水,至溶液的PH值在6-7,溶液变为浅绿色; [0009] B, the molar ratio of the clear solution of nitrate and citric acid of 1: 3 was added citric acid to give a red-brown solution was then slowly added dropwise aqueous ammonia, PH value of the solution to 6-7, the solution turned light green ;

[0010] C、将浅绿色溶液置于80°C的水浴中,直至溶液中的水分完全蒸发,得到120CP的铁氧体凝胶,将凝胶自蔓延燃烧,除去其中的柠檬酸,得到黑色的掺杂铁氧体复合物前躯体,然后将前躯体在1150°C下煅烧池后,得到黑色粉末状的掺杂铁氧体复合物; [0010] C, the pale green solution was placed in a water bath to 80 ° C, until the solution is complete evaporation of water, to give 120CP ferrite gel, the gel is self-propagating combustion, wherein the citric acid is removed to obtain a black the dopant compound precursor of ferrite, and then the precursor after calcination at 1150 ° C pool, to obtain a black powdery ferrite composite dopant;

[0011] D、将掺杂铁氧体复合物、碳纳米管与噻吩单体按质量比0. 2:1:0. 3,加入到50ml 三氯甲烷溶液中,超声波振荡0. 5h,使它们混合均勻,然后加入无水氯化铁,在0°C的冰浴中进行原位化学氧化反应,反应IOh ; [0011] D, the dopant ferrite composite, carbon nanotubes and a thiophene monomer mass ratio of 0.2: 1: 03, 50ml chloroform was added to the solution, the ultrasonic oscillation 0. 5h, so that they were mixed uniformly, followed by addition of anhydrous ferric chloride, in situ chemical oxidation reactions in an ice bath at 0 ° C, the reaction IOH;

[0012] E、反应完成后,室温下将溶剂蒸干,倒入1 mol/L的HCI溶液,室温搅拌12 h,抽滤,水洗涤,重复2-3次,至滤液澄清,将沉淀在50°C下真空干燥Mh,制得稀土掺杂铁氧体/碳纳米管/聚噻吩复合物。 [0012] E, after completion of the reaction, the solvent was evaporated to dryness at room temperature, poured into 1 mol / L solution of HCI, stirred at room temperature 12 h, filtered off with suction and washed water, repeated 2-3 times, to the clear filtrate, the precipitate was 50 ° C for vacuum drying Mh, to obtain rare earth doped ferrite / carbon nanotube / polythiophene composite.

[0013] 本发明的优点是:本发明中掺杂稀土元素,能增加铁氧体晶体的磁晶各向异性场, 提高矫顽力,从而增加在交变电磁场中的磁滞损耗,使晶体的平均晶粒尺寸增大,从而使晶界电阻率减小,进而使晶体整体的电阻率减小,提高了涡流损耗,同时可以增加畴壁谐振损耗。 [0013] The advantage of the present invention are: the present invention, rare earth-doped, can increase the magnetocrystalline anisotropy field ferrite crystals, to increase the coercivity, thereby increasing hysteresis loss in an alternating electromagnetic field in the crystal the average grain size is increased, so that the grain boundary resistivity decreases, and thus the overall resistivity of the crystal is decreased, the eddy current loss increase, while domain wall resonance loss can be increased. 同时,控制掺杂量可以调节铁氧体材料吸收峰的频率范围,以达到预期的应用范围,并可以扩展吸收频带宽度,改善高温吸波性能。 Meanwhile, the doping amount can be controlled to adjust the frequency range of the absorption peak of the ferrite material, in order to achieve the desired application, and can be extended absorption band width, improve high temperature absorbing properties. 聚噻吩是一种导电高分子,通过与碳纳米管的η-η共轭,增强其介电损耗能力。 A polythiophene conductive polymer, the carbon nanotubes by η-η conjugation, enhance its ability to dielectric loss. 掺杂铁氧体与聚噻吩/碳纳米管结合,充分利用聚噻吩的高介电一优异的介电损耗能力,增强铁氧体对微波的电损耗能力,提高其吸波能力。 Binding ferrite doped polythiophene / carbon nanotubes, make full use of the high dielectric polythiophene an excellent dielectric loss, and enhance the ability of ferrite microwave power loss, improve the absorbing capacity. 同时,减少铁氧体的用量,降低铁氧体吸收剂的用量。 At the same time, reduce the amount of ferrite, the ferrite decrease the amount of the absorbent. 因此,该复合材料为一性能优越的吸波材料。 Thus, the composite is a superior performance of the absorbing material.

具体实施方式 detailed description

[0014] 实施案例1 : [0014] Embodiment Case 1:

[0015] 步骤1 :将定量的硝酸铁、硝酸钡、硝酸镧(摩尔含量为0. 1)和硝酸钕(摩尔含量为0.2)加入到去离子水中,搅拌至溶解。 [0015] Step 1: The amount of ferric nitrate, barium nitrate, lanthanum nitrate (0.1 molar content) and neodymium nitrate (0.2 molar content) was added to deionized water and stirred until dissolved. 加入剂量比的柠檬酸,混合均勻。 The dose ratio of citric acid was added, mixed evenly. 在80°C的水浴中加热,直至形成粘度120cp湿凝胶。 It was heated in a water bath to 80 ° C until the viscosity of 120cp wet gel is formed.

[0016] 步骤2 :将湿凝胶进行自蔓延燃烧,得到黑色粉末,然后在1150°C煅烧池,得黑色铁氧体复合物。 [0016] Step 2: The wet gel is self-propagating combustion to obtain black powder, and then calcined at 1150 ° C cell to give a black ferrite composite.

[0017] 步骤3:将黑色掺杂铁氧体、碳纳米管加入到氯仿中,超声分散0.¾,使铁氧体、碳纳米管均一分散在氯仿中,在0°c条件下,将0. 6mol无水FeCl3加入到氯仿溶液的三颈瓶中,搅拌约30min,得到暗绿色混浊液,将含0. 14 mol噻吩单体的50ml氯仿溶液逐滴滴入三颈瓶中,搅拌反应10 h。 [0017] Step 3: The black-doped ferrite, chloroform was added to the carbon nanotubes, an ultrasonic disperser 0.¾, ferrite, carbon nanotubes uniformly dispersed in chloroform, at 0 ° c conditions, 0. 6mol of anhydrous FeCl3 was added to the chloroform solution of three-necked flask and stirred for about 30min, to give a dark green cloudy solution, containing 0. 14 mol thiophene monomer 50ml of chloroform was added dropwise into a three-necked flask, the reaction was stirred 10 h. 反应完成后,室温下将溶剂蒸干,倒入150ml 1 mol/L的HCI溶液,室温搅拌12 h,抽滤,水洗涤,重复2-3次,至滤液为无色,50°C真空干燥Mh,即制得复合吸波材料。 After completion of the reaction, the solvent was evaporated to dryness at room temperature, poured into 150ml 1 mol / L solution of HCI, stirred at room temperature 12 h, filtered off with suction and washed water, repeated 2-3 times, until the filtrate is colorless, 50 ° C and dried in vacuo Mh, i.e. absorbing material to make a composite. 在1-12GHZ内,最高吸收峰值可达_35dB。 In 1-12GHZ, up to the maximum absorption peak _35dB.

[0018] 实施案例2 [0018] Embodiment 2 Case

[0019] 步骤1 :将定量的硝酸铁、硝酸钡、硝酸镧(摩尔含量为0. 2)和硝酸钕(摩尔含量为 [0019] Step 1: The amount of ferric nitrate, barium nitrate, lanthanum nitrate (0.2 molar content) and neodymium nitrate (molar content of

40.1)加入到去离子水中,搅拌至溶解。 40.1) was added to the deionized water and stirred until dissolved. 加入剂量比的柠檬酸,混合均勻。 The dose ratio of citric acid was added, mixed evenly. 在80°C的水浴中加热,直至形成粘度120cp湿凝胶。 It was heated in a water bath to 80 ° C until the viscosity of 120cp wet gel is formed.

[0020] 步骤2 :将湿凝胶进行自蔓延燃烧,得到黑色粉末,然后在1150°C煅烧池得黑色铁氧体复合物。 [0020] Step 2: The wet gel is self-propagating combustion to obtain black powder, and then to obtain a black composite ferrite calcined at 1150 ° C pools.

[0021] 步骤3将黑色铁氧体-二氧化钛复合物加入到氯仿中,超声分散0. 5h,使铁氧体-二氧化钛复合物均一分散在氯仿中,在0°C条件下,将0. 5mol无水!^eCl3加入到氯仿溶液的三颈瓶中,搅拌约30min,得到暗绿色混浊液,将含0. 12 mol单体的50 ml氯仿溶液逐滴滴入三颈瓶中,搅拌反应10 h。 [0021] Step 3 ferrite black - titanium dioxide in chloroform complex is added, ultrasonic dispersion 0. 5h, ferrite - titania composite uniformly dispersed in chloroform, at 0 ° C under conditions, 0. 5mol anhydrous! ^ eCl3 chloroform solution was added to a three-necked flask and stirred for about 30min, to give a dark green cloudy solution, containing 0. 12 mol monomer solution was added dropwise 50 ml of chloroform into a three-necked flask, the reaction was stirred for 10 h. 反应完成后,室温下将溶剂蒸干,倒入150 ml 1 mol/L的HCI溶液,室温搅拌12 h,抽滤,水洗涤,重复2-3次,至滤液为无色,50°C真空干燥Mh,即制得复合吸波材料,在1-12GHZ内,最高吸收峰值可达_30dB。 After completion of the reaction, the solvent was evaporated to dryness at room temperature, poured into 150 ml 1 mol / L solution of HCI, stirred at room temperature 12 h, filtered off with suction and washed water, repeated 2-3 times, until the filtrate is colorless, 50 ° C in vacuo Mh drying, i.e. absorbing composites prepared within 1-12GHZ, up to the maximum absorption peak _30dB.

[0022] 实施案例3 : [0022] Embodiment 3 Case:

[0023] 步骤1 :将定量的硝酸铁、硝酸钡、硝酸镧(摩尔含量为0. 3)和硝酸钕(摩尔含量为0.1)加入到去离子水中,搅拌至溶解。 [0023] Step 1: The amount of ferric nitrate, barium nitrate, lanthanum nitrate (0.3 molar content) and neodymium nitrate (0.1 molar content) was added to deionized water and stirred until dissolved. 加入剂量比的柠檬酸,混合均勻。 The dose ratio of citric acid was added, mixed evenly. 在80°c的水浴中加热,直至形成粘度120cp湿凝胶。 It was heated in a water bath at 80 ° c, until the viscosity 120cp wet gel is formed.

[0024] 步骤2 :将湿凝胶进行自蔓延燃烧,得到黑色粉末,然后在1150°C煅烧池,得黑色铁氧体复合物。 [0024] Step 2: The wet gel is self-propagating combustion to obtain black powder, and then calcined at 1150 ° C cell to give a black ferrite composite.

[0025] 步骤3:将黑色掺杂铁氧体、碳纳米管加入到氯仿中,超声分散0.¾,使铁氧体、碳纳米管均一分散在氯仿中,在0°c条件下,将0. 4mol无水FeCl3加入到氯仿溶液的三颈瓶中,搅拌约30min,得到暗绿色混浊液,将含0. 10 mol噻吩单体的50ml氯仿溶液逐滴滴入三颈瓶中,搅拌反应10 h。 [0025] Step 3: The black-doped ferrite, chloroform was added to the carbon nanotubes, an ultrasonic disperser 0.¾, ferrite, carbon nanotubes uniformly dispersed in chloroform, at 0 ° c conditions, 0. 4mol of anhydrous FeCl3 was added to a chloroform solution of the three-necked flask and stirred for about 30min, to give a dark green cloudy solution, containing 0. 10 mol thiophene monomer 50ml of chloroform was added dropwise into a three-necked flask, the reaction was stirred 10 h. 反应完成后,室温下将溶剂蒸干,倒入150ml 1 mol/L的HCI溶液,室温搅拌12 h,抽滤,水洗涤,重复2-3次,至滤液为无色,50°C真空干燥Mh,即制得复合吸波材料。 After completion of the reaction, the solvent was evaporated to dryness at room temperature, poured into 150ml 1 mol / L solution of HCI, stirred at room temperature 12 h, filtered off with suction and washed water, repeated 2-3 times, until the filtrate is colorless, 50 ° C and dried in vacuo Mh, i.e. absorbing material to make a composite. 在1-12GHZ内,最高吸收峰值可达_33dB。 In 1-12GHZ, up to the maximum absorption peak _33dB.

Claims (1)

  1. 1. 一种稀土掺杂铁氧体/聚噻吩/碳纳米管微波吸收剂的制备方法,其特征是制备方法步骤为:A、将钡、铁、钕和镧硝酸盐溶于蒸馏水中,搅拌至溶解,得到澄清溶液;B、根据澄清溶液内硝酸根与柠檬酸的摩尔比1:3加入柠檬酸,得到棕红色溶液,然后缓慢滴加氨水,至溶液的PH值在6-7,溶液变为浅绿色;C、将浅绿色溶液置于80°C的水浴中,直至溶液中的水分完全蒸发,得到120cp的铁氧体凝胶,将凝胶自蔓延燃烧,除去其中的柠檬酸,得到黑色的掺杂铁氧体复合物前驱体,然后将前驱体在1150°C下煅烧池后,得到黑色粉末状的掺杂铁氧体复合物;D、将掺杂铁氧体复合物、碳纳米管与噻吩单体按质量比0. 2:1:0. 3,加入到50ml三氯甲烷溶液中,超声波振荡0. 5h,使它们混合均勻,然后加入无水氯化铁,在0°C的冰浴中进行原位化学氧化反应,反应IOh ;E、反应完 A rare earth doped ferrite / polythiophene / carbon nanotubes prepared microwave absorbent, wherein the preparation steps: A, barium, iron, neodymium and lanthanum nitrate dissolved in distilled water, stirring dissolved to give a clear solution; B, the molar ratio of the clear solution of nitrate and citric acid 1: 3 addition of citric acid to give a red-brown solution was then slowly added dropwise aqueous ammonia, PH value of the solution to 6-7, the solution to light green; C, the pale green solution was placed in a water bath to 80 ° C until solution is complete evaporation of water, to give 120cp ferrite gel, the gel is self-propagating combustion, wherein the citric acid is removed, to obtain a black composite ferrite dopant precursor, and then the precursor is calcined at 1150 ° C pool, to obtain a black powdery ferrite composite dopant; D, the ferrite composite dopant, carbon nanotubes and a thiophene monomer mass ratio 0.2: 1: 03, 50ml chloroform was added to the solution, the ultrasonic oscillation 0. 5h, mixing them uniformly, and then added anhydrous ferric chloride, at 0 ice-cooling ° C. in situ in the chemical oxidation reaction, the reaction IOh; E, completion of the reaction 后,室温下将溶剂蒸干,倒入1 mol/L的HCl溶液,室温搅拌12 h,抽滤,水洗涤,重复2-3次,至滤液澄清,将沉淀在50°C下真空干燥Mh,制得稀土掺杂铁氧体/聚噻吩/碳纳米管复合物。 After, the solvent was evaporated to dryness at room temperature, poured into 1 mol / L HCl solution, stirred at room temperature 12 h, filtered off with suction and washed water, repeated 2-3 times, to the clear filtrate, the precipitate was dried in vacuo Mh at 50 ° C for prepared rare earth doped ferrite / polythiophene / carbon nanotube composites.
CN 201010568520 2010-12-01 2010-12-01 Method for preparing rare earth-doped ferrite/polythiophene/carbon nano tube microwave absorbent CN102010577B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010568520 CN102010577B (en) 2010-12-01 2010-12-01 Method for preparing rare earth-doped ferrite/polythiophene/carbon nano tube microwave absorbent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010568520 CN102010577B (en) 2010-12-01 2010-12-01 Method for preparing rare earth-doped ferrite/polythiophene/carbon nano tube microwave absorbent

Publications (2)

Publication Number Publication Date
CN102010577A true CN102010577A (en) 2011-04-13
CN102010577B true CN102010577B (en) 2012-05-02

Family

ID=43840916

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010568520 CN102010577B (en) 2010-12-01 2010-12-01 Method for preparing rare earth-doped ferrite/polythiophene/carbon nano tube microwave absorbent

Country Status (1)

Country Link
CN (1) CN102010577B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102532889B (en) * 2012-01-09 2013-10-30 南昌航空大学 Carbon nanotube-doped poly-Schiff base/ferrite composite stealth material
CN102634013B (en) * 2012-04-05 2014-08-20 南昌航空大学 Preparation method of samarium-lanthanum-doped strontium ferrite-poly m-toluidine composite microwave absorbent
CN102634016B (en) * 2012-04-05 2014-04-16 南昌航空大学 Preparation method of neodymium-lanthanum-doped barium ferrite-polyrrole composite microwave absorbent
CN102627834B (en) * 2012-04-05 2013-10-16 南昌航空大学 Preparation method of chitosan modified barium ferrite filling multi-walled carbon nanotube/poly 3-methylthiophene composite wave-absorbing material
CN102675876B (en) * 2012-05-16 2014-06-18 南昌航空大学 Carbon nano tube-doped poly-schiff base/ carbonyl iron powder composite stealth material
CN102775739B (en) * 2012-08-17 2013-11-13 张宇 Composite wave-absorbing material adopting mesoporous silica foam material as matrix and preparation method of composite wave-absorbing material
CN102924876B (en) * 2012-11-01 2015-02-04 南昌航空大学 Preparation method of NiCuZn ferrite coated dodecyl benzene sulphonic acid (DBSA) modified carbon nano tube-polythiophene composite wave-absorbing material
CN102993645A (en) * 2012-11-12 2013-03-27 南昌航空大学 Preparation method for graphene/DBSA (dodecyl benzene sulphonic acid)-modified carbon nanotube/polythiophene composite wave-absorbing additive
CN102964571B (en) * 2012-11-12 2015-05-20 南昌航空大学 Preparation method of barium ferrite/carbon nanotube/poly(3-methylthiophene) composite wave-absorbing material
CN102964595B (en) * 2012-11-12 2014-05-28 南昌航空大学 Preparation method of barium-magnesium ferrite/SDBS (sodium dodecyl benzene sulfonate)-modified carbon nanotube/polypyrrole composite wave-absorbing material
CN103333437A (en) * 2013-07-10 2013-10-02 西北工业大学 Rare earth doped carbon nanotube/polyvinyl chloride composite wave-absorbing film material
CN104877114B (en) * 2015-06-19 2017-06-16 西北师范大学 Solvothermal polythiophene - Method Ferrite Ni nanocomposite
CN105153678B (en) * 2015-10-13 2017-08-25 中国人民解放军广州军区武汉总医院 CNT - Preparation of Conductive Polymer Materials / polyurethane composite ferrite

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301930A2 (en) 1987-07-31 1989-02-01 Thomson-Csf Electrically conducting polymeric composite film and method for preparing it
CN1263114A (en) 1999-02-11 2000-08-16 中国科学院化学研究所 Conductive high-polymer microwave absorbent and its preparation method
CN1388540A (en) 2002-07-12 2003-01-01 四川工业学院 Superhigh-capacitance capacitor with composite carbon nanotube and its manufacture
CN1402000A (en) 2001-07-19 2003-03-12 索尼国际(欧洲)股份有限公司 Chemical sensor made of nano particle/dendrite composite material
CN101582302A (en) 2008-05-14 2009-11-18 清华大学;鸿富锦精密工业(深圳)有限公司 Carbon nano tube/conductive polymer composite material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9293720B2 (en) * 2008-02-19 2016-03-22 New Jersey Institute Of Technology Carbon nanotubes as charge carriers in organic and hybrid solar cells

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301930A2 (en) 1987-07-31 1989-02-01 Thomson-Csf Electrically conducting polymeric composite film and method for preparing it
CN1263114A (en) 1999-02-11 2000-08-16 中国科学院化学研究所 Conductive high-polymer microwave absorbent and its preparation method
CN1402000A (en) 2001-07-19 2003-03-12 索尼国际(欧洲)股份有限公司 Chemical sensor made of nano particle/dendrite composite material
CN1388540A (en) 2002-07-12 2003-01-01 四川工业学院 Superhigh-capacitance capacitor with composite carbon nanotube and its manufacture
CN101582302A (en) 2008-05-14 2009-11-18 清华大学;鸿富锦精密工业(深圳)有限公司 Carbon nano tube/conductive polymer composite material

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
王红敏等.聚噻吩/多壁碳纳米管复合材料结构与导电机理的研究.《化学学报》.2008,(第20期),
郭洪范等.聚噻吩/碳纳米管复合材料的制备与性能研究.《功能材料》.2007,(第09期),

Also Published As

Publication number Publication date Type
CN102010577A (en) 2011-04-13 application

Similar Documents

Publication Publication Date Title
CN102054986A (en) Ultrahigh-capacity lithium ion battery anode material prepared by microwave method and preparation method thereof
CN101719546A (en) Method for preparing lithium ion battery anode material doped with nanometer oxide
CN101475157A (en) Preparation of lithium iron phosphate nano composite microsphere
CN103117380A (en) Preparation method of manganese Li-NiCoMn ternary material for lithium ion battery
CN101179124A (en) Method for producing high performance lithium ion battery anode material LiFePO4/C
CN101559982A (en) Method of one-step synthesis of hexagonal barium ferrite nanometer crystal by microwave-assistant sol-gel spontaneous combustion
CN1773753A (en) Lithium ion battery anode material and producing method thereof
CN103400973A (en) Nickel-cobalt lithium aluminate and preparation method of precursor thereof
CN101337695A (en) Method for preparing nanometer ferroferric oxide microballoons with particle diameter adjustable by microwave
CN102093840A (en) Carbonized bacterial cellulose/magnetic composite wave-absorbing material and preparation method thereof
CN101041465A (en) Method for preparation of niobic acid zinc nano material
CN103545122A (en) Preparation method for manganese dioxide/carbon composite materials used for super capacitor
CN103151505A (en) Lithium-titanate composite negative pole material and preparation method thereof
CN101673819A (en) Method for preparing manganese lithium phosphate/carbon composite material by manganese phosphate
Yan et al. In situ chemical coprecipatation composition of hybrid precursors to red YVO4: Eu3+ and green LaPO4: Tb3+ phosphors
CN101499341A (en) Preparation of carbon nano-tube(MWCNTs)/manganese-zinc ferrite(Mn1-xZnxFe2O4) magnetic nano material by alcohol-thermal method
CN101436667A (en) Anode polyporous material of lithium ion cell and preparation method thereof
CN102963929A (en) Method for preparing lanthanum-doped bismuth titanate nano powder by sol-gel hydrothermal method
CN102386391A (en) Method for preparing ternary complex anode material (LiNixCoyMn1-x-yO2)
CN103904330A (en) Graphene-based composite ternary material, preparation method thereof, and lithium ion battery
CN101734726A (en) Method for preparing urchin-shaped hydroxyferric oxide and urchin-shaped ferric oxide nano material
CN101696323A (en) Method for preparing polyaniline/manganese dioxide composite material for super capacitor
CN103102867A (en) Metal ion doped barium ferrite wave absorbing powder and preparation method thereof
CN102153338A (en) Seepage type barium titanate-nickel zinc ferrite composite ceramic wave absorption material and preparation method thereof
CN103641488A (en) Method for preparing graphene doped polyaniline-based carbon coated nickel zinc ferrite mesoporous material

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model
C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 330000 NANCHANG, JIANGXI PROVINCE TO: 100031 DONGCHENG, BEIJING

ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Free format text: FORMER OWNER: NANCHANG UNIV. OF AVIATION

Effective date: 20131014

Owner name: JIANGXI ELECTRIC POWER SCIENCE ACADEMY NANCHANG UN

Effective date: 20131014

C17 Cessation of patent right