拟薄水铝石包覆氧化石墨烯改性环氧树脂-氰酸酯复合材料的微观表征及力学性能

陈宇飞; 刘宇龙; 赵辉; 滕成君; 陈思敏

doi:10.13801/j.cnki.fhclxb.20201116.005

拟薄水铝石包覆氧化石墨烯改性环氧树脂-氰酸酯复合材料的微观表征及力学性能

doi: 10.13801/j.cnki.fhclxb.20201116.005

陈宇飞^{1, 2, ,},
刘宇龙^2,,
赵辉^2,,
滕成君^3,,
陈思敏^2,

1.
哈尔滨理工大学　工程电介质及应用技术教育部重点实验室，哈尔滨 150080
2.
哈尔滨理工大学　材料科学与工程学院，哈尔滨 150040
3.
哈尔滨市香坊区疾病预防控制中心，哈尔滨 150000

基金项目: 国家自然科学基金(51603057)；哈尔滨创新人才专项(2015RAXXJ029)

详细信息

通讯作者:
陈宇飞，博士，教授，研究方向为介电复合材料、高性能航空材料结构与性能 E-mail：chenyufei@hrbust.edu.cn

中图分类号: TB332
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出版历程
- 收稿日期: 2020-09-17
- 修回日期: 2020-10-23
- 录用日期: 2020-11-12
- 网络出版日期: 2020-11-16
- 刊出日期: 2021-09-01

Micro-characterization and mechanical properties of pseudo-boehmite stone-coated graphene oxide/epoxy resin-cyanate composites

CHEN Yufei^{1, 2
, ,},
LIU Yulong^2
,,
ZHAO Hui^2
,,
TENG Chengjun^3
,,
CHEN Simin^2
,

1.
Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
2.
School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China
3.
Center for Disease Prevention and Control, Xiangfang District, Harbin 150000, China

摘要

摘要: 以物理法石墨烯为原料，采用改进的Hummers法制备了氧化石墨烯(GO)，通过溶胶-凝胶法在氧化石墨烯表面生长拟薄水铝石(AlOOH)纳米颗粒，得到拟薄水铝石包覆氧化石墨烯(GO@AlOOH)，以环氧树脂(E51)和双酚A型氰酸酯(BCE)为原料，GO@AlOOH作为增强体，制备GO@AlOOH/E51-BCE复合材料。采用红外光谱和X射线表征GO@AlOOH，结果表明：AlOOH和GO存在着相互作用，且其表面含有羟基活性基团。复合材料的SEM结果显示：GO@AlOOH的加入使得树脂断裂面明显改变，性能得到提升。当掺杂量为0.6wt%时，复合材料的弯曲强度、弯曲模量以及冲击强度达到最大，分别为158.23 MPa、2.37 GPa和46.96 kJ/m²。该复合材料具有优异的力学性能，具有一定的发展潜力。
- 双酚A型氰酸酯 /
- 氧化石墨烯 /
- 拟薄水铝石 /
- 溶胶-凝胶法 /
- 力学性能
Abstract: Graphite oxide (GO) was prepared by using a modified layer of graphite powder as the raw material, and pseudoboehmite (AlOOH) nanoparticles were grown on the surface of GO by a sol-gel method to obtain pseudo-boehmite stone-coated graphene oxide (GO@AlOOH). The matrix (E51-BCE) was synthesized from epoxy resin (E51) and bisphenol A cyanate (BCE), and GO@AlOOH as reinforcement to prepare the GO@AlOOH modified epoxy resin-cyanate composites (GO@AlOOH/E51-BCE) composites. Infrared analysis and X-ray characterization of GO coating materials shows that AlOOH and GO particles have a particular interaction, and there are certain hydroxyl groups on the surface of the material after coating. The composite samples were characterized by SEM showing that the addition of GO@AlOOH significantly changes the fracture surface of the resin and improves the performance. When the doping amount is 0.6wt%, the bending strength, bending modulus and impact strength of the composite material reach the maximum, which are 158.23 MPa, 2.37 GPa and 46.96 kJ/m², respectively. The composite material has excellent mechanical properties and specific development potential.
- bisphenol A cyanate resin /
- graphene oxide /
- pseudo-boehmite stone /
- sol-gel method /
- mechanical properties

HTML全文

图 1 制备氧化石墨烯(GO)的技术路线

Figure 1. Technical route of graphene oxide (GO)

下载: 全尺寸图片幻灯片

图 2 GO、AlOOH和GO@AlOOH的红外光图谱

Figure 2. Infrared spectra of GO, AlOOH and GO@AlOOH

下载: 全尺寸图片幻灯片

图 3 GO、AlOOH及GO@AlOOH的XRD图谱

Figure 3. XRD patterns of GO, AlOOH and GO@AlOOH

下载: 全尺寸图片幻灯片

图 4 GO@AlOOH、E51-BCE和GO@AlOOH/E51-BCE样品的FTIR图谱

Figure 4. Infrared spectra of GO@AlOOH, E51-BCE and GO@AlOOH/E51-BCE

下载: 全尺寸图片幻灯片

图 5 GO@AlOOH、E51-BCE和GO@AlOOH/E51-BCE的XRD图谱

Figure 5. XRD patterns of GO@AlOOH, E51-BCE and GO@AlOOH/E51-BCE

下载: 全尺寸图片幻灯片

图 6 GO@AlOOH/E51-BCE复合材料的SEM图像

Figure 6. SEM images of GO@AlOOH/E51-BCE composites

下载: 全尺寸图片幻灯片

图 7 GO@AlOOH/E51-BCE复合材料弯曲强度和弯曲模量

Figure 7. Benging strength and bending modulus of GO@AlOOH/E51-BCE composites

下载: 全尺寸图片幻灯片

图 8 GO@AlOOH/E51-BCE复合材料冲击强度

Figure 8. Impact strength of GO@AlOOH/E51-BCE composites

下载: 全尺寸图片幻灯片

图 9 表1中GO@AlOOH/CE-EP复合材料A2的弯曲强度-应变曲线

Figure 9. Bending strength-strain curve of GO@AlOOH/CE-EP composite of A2 in Table 1

下载: 全尺寸图片幻灯片

表 1 拟薄水铝石包覆氧化石墨烯改性环氧树脂-氰酸酯(GO@AlOOH/E51-BCE)复合材料的样品编号

Table 1. Components of pseudo-boehmite stone-coated graphene oxide/epoxy resin-cyanate (GO@AlOOH/E51-BCE) composites

No.	Component	GO@AlOOH mass fraction/wt%
A0	E51-BCE	0
A1	GO@AlOOH/E51-BCE	0.2
A2	GO@AlOOH/E51-BCE	0.4
A3	GO@AlOOH/E51-BCE	0.6
A4	GO@AlOOH/E51-BCE	0.8
A5	GO@AlOOH/E51-BCE	1.0
A6	GO@AlOOH/E51-BCE	1.5

下载: 导出CSV

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