石墨烯-羰基铁粉线材的制备及其吸波性能分析

叶喜葱; 欧阳宾; 杨超; 胡正浪; 何恩义; 吴海华

doi:10.13801/j.cnki.fhclxb.20210819.008

石墨烯-羰基铁粉线材的制备及其吸波性能分析

doi: 10.13801/j.cnki.fhclxb.20210819.008

叶喜葱^{1, 2, ,},
欧阳宾²,
杨超²,
胡正浪²,
何恩义^{1, 2},
吴海华^{1, 2}

1.
三峡大学　石墨增材制造技术与装备湖北省工程研究中心，宜昌 443002
2.
三峡大学　机械与动力学院，宜昌 443002

基金项目: 国家自然科学基金(51575313)；宜昌市石墨-石墨烯增材制造重点实验室(YKLGAM202001)

详细信息

通讯作者:
叶喜葱，博士，教授，硕士生导师，研究方向为先进材料成形制造　E-mail: yexc@ctgu.edu.cn

中图分类号: TB333
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- 被引次数: 0
出版历程
- 收稿日期: 2021-06-21
- 修回日期: 2021-07-09
- 录用日期: 2021-08-12
- 网络出版日期: 2021-08-20
- 刊出日期: 2022-07-30

Preparation of graphene-carbonyl iron powder wire and analysis of its wave absorption performance

YE Xicong^{1, 2
, ,},
OUYANG Bin²,
YANG Chao²,
HU Zhenglang²,
HE Enyi^{1, 2},
WU Haihua^{1, 2}

1.
Graphite Additive Manufacturing Technology and Equipment Hubei Engineering Research Center, China Three Gorges University, Yichang 443002, China
2.
Institute of Machinery and Power, China Three Gorges University, Yichang 443002, China

摘要

摘要: 为了提高单一磁性吸波材料的吸波性能，以聚乳酸(PLA)作为基体材料，将磁性材料羰基铁粉(CIP)与石墨烯(RGO)进行复合，制备RGO-CIP/PLA复合材料。通过TG、XRD等多种测试手段对复合材料的结构、形貌等进行表征。同时使用矢量网络分析仪对复合材料的电磁参数进行测试，计算出不同厚度的吸波性能，研究了RGO的添加量对RGO-CIP/PLA复合材料的吸波性能影响。结果表明：当RGO质量分数为4wt%，CIP质量分数为20wt%时，RGO-CIP/PLA复合材料吸波性能最优；吸收厚度为3 mm时，达到了−27.25 dB最小的R_L值，同时其吸收带宽为2.922 GHz (7.227~10.149 GHz)。同时，随着其吸收厚度的增加，有效吸收带宽(R_L＜−10 dB)会移动至较低的频带。
- 复合材料 /
- 石墨烯 /
- 羰基铁粉 /
- 吸波性能 /
- 电磁参数
Abstract: In order to improve the microwave absorbing properties of single magnetic absorbing material, polylactic acid (PLA) was used as the matrix material, and the magnetic material carbonyl iron powder (CIP) as well as reduced graphene oxide (RGO) were compounded to prepare RGO and CIP/PLA composites. The structure and morphology of the composites were characterized by TG, XRD and other testing methods. Meanwhile, the electromagnetic parameters of the composites were measured by vector network analyzer, and the microwave absorbing properties of different thickness were calculated. The influence of RGO addition on the microwave absorbing properties of RGO and CIP/PLA composites was studied. The results show that when the graphene content is 4wt% and the carbonyl iron powder content is 20wt%, the RGO-CIP/PLA composite has the best absorbing performance. When the absorption thickness is 3 mm, the minimum R_L value of −27.25 dB is reached, and at the same time its absorption bandwidth is 2.922 GHz (7.227-10.149 GHz). At the same time, as its absorption thickness increases, the effective absorption bandwidth (R_L<−10 dB) can move to a lower frequency band.
- composite materials /
- reduced graphene oxide /
- carbonyl iron powder /
- absorbing properties /
- electromagnetic parameters

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图 1 聚乳酸(PLA) (a)、羰基铁粉(CIP) (b)和石墨烯(RGO) (c)的原始形貌图

Figure 1. Original morphology of polylactic acid (PLA) (a), carbonyl iron powder (CIP) (b) and graphene (RGO) (c)

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图 2 RGO-CIP/PLA复合粉末DSC曲线

Figure 2. DSC curves of RGO-CIP/PLA composite powder

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图 3 挤出机各部分示意图

Figure 3. Schematic diagram of each part of the extruder

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图 4 复合材料测试用同轴环

Figure 4. Coaxial ring for testing of composite materials

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图 5 不同RGO含量的RGO-CIP/PLA复合材料的XRD图

Figure 5. XRD patterns of RGO-CIP/PLA composites with different RGO contents

X—Mass fraction of RGO

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图 6 RGO-CIP/PLA复合材料的TG图

Figure 6. TG diagram of RGO-CIP/PLA composites

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图 7 不同RGO含量同轴环的电磁参数：在2~18 GHz频率范围内，介电常数的实部(a)、虚部(b)；磁导率的实部(c)、虚部(d)；介电损耗角正切(e)和磁损耗角正切(f)

Figure 7. Electromagnetic parameters of coaxial rings with different RGO contents: In the frequency range of 2-18 GHz, real part (a) and imaginary part (b) of the complex permittivity; Real part (c) and imaginary part (d) of the complex magnetic conductivity; Dielectric loss tangent (e) and magnetic loss tangent (f)

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图 8 不同RGO含量的RGO-CIP/PLA复合材料的反射损耗与频率之间的关系：(a) d=1 mm；(b) d=2 mm；(c) d=3 mm；(d) d=4 mm

Figure 8. Relationship between the reflection loss and frequency of RGO-CIP/PLA composites with different RGO contents： (a) d =1 mm; (b) d=2 mm; (c) d=3 mm; (d) d=4 mm

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图 9 不同RGO含量的RGO-CIP/PLA复合材料的SEM图像：(a) 0wt%；(b) 1wt%；(c) 2wt%；(d) 3wt%；(e) 4wt%；(f) 5wt%

Figure 9. SEM images of RGO-CIP/PLA composite material with different RGO contents: (a) 0wt%; (b) 1wt%; (c) 2wt%; (d) 3wt%; (e) 4wt%; (f) 5wt%

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图 10 不同RGO含量的RGO-CIP/PLA复合材料的三维微波反射损耗图：(a) 0wt% RGO；(b) 1wt% RGO；(c) 2wt% RGO；(d) 3wt%RGO；(e) 4wt% RGO；(f) 5wt% RGO

Figure 10. Three-dimensional microwave reflection loss diagrams of RGO-CIP/PLA composites with different RGO contents: (a) 0wt% RGO; (b) 1wt% RGO; (c) 2wt% RGO; (d) 3wt% RGO; (e) 4wt% RGO; (f) 5wt% RGO

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图 11 不同RGO含量的RGO-CIP/PLA复合材料的阻抗匹配图

Figure 11. Impedance matching diagram of RGO-CIP/PLA composites with different RGO contents

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表 1 RGO-CIP/ PLA复合粉末的组成

Table 1. Composition of RGO-CIP/PLA composite powder

Sample number	Mass fraction/wt%
Sample number	RGO	CIP	PLA
0wt%RGO-CIP/PLA	0	20	80
1wt%RGO-CIP/PLA	1	20	79
2wt%RGO-CIP/PLA	2	20	78
3wt%RGO-CIP/PLA	3	20	77
4wt%RGO-CIP/PLA	4	20	76
5wt%RGO-CIP/PLA	5	20	75
Notes: RGO—Reduced graphene oxide; CIP—Carbonyl iron powder; PLA— Polylactic acid.

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表 2 RGO-CIP/PLA复合粉末DSC曲线数据

Table 2. DSC curve datas of RGO-CIP/PLA composite powder

Sample number	RGO content/ wt%	T_m/℃	T_c/℃	T_g/℃
0wt%RGO-CIP/PLA	0	113.79	97.98	82.86
1wt%RGO-CIP/PLA	1	112.1	100.38	81.67
2wt%RGO-CIP/PLA	2	112.6	98.99	79.69
3wt%RGO-CIP/PLA	3	111.9	99.30	82.59
4wt%RGO-CIP/PLA	4	112.1	99.65	83.52
5wt%RGO-CIP/PLA	5	112.6	101.24	82.59
Notes: T_m—The melting temperature of the composite material; T_c—The crystallization temperature of the composite material; T_g—The glass transition temperature of the composite material.

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表 3 熔融沉积3D (FDM3D)打印参数

Table 3. FDM3D printing parameters

Item	Printing parameters
Nozzle 1 temperature/℃	150
Nozzle 2 temperature/℃	0
Panel temperature/℃	40

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表 4 RGO-CIP/PLA复合材料与其他复合吸波材料的性能比较

Table 4. Performance comparisons of RGO-CIP/PLA composite materials and other composite absorbing materials

Absorbers	Minimum reflection loss/dB	Thickness/ mm	Ref.
Fe(CO)₅	−3	1	[21]
Fe₃O₄SrFe₁₂O₁₉	−17.7	3	[22]
FeNi₅₀-PLA	−14.3	3	[23]
MnO₂-RGO	−19.2	1.5	[24]
RGO-Fe₃O₄	−25	3	[25]
Fe(CO)₅-RGO	−27.25	3	This work

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