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上浆剂对国产T800级碳纤维增强热固性复合材料界面性能的影响

王新庆 柳肇博 刘寒松 肇研 关志东

王新庆, 柳肇博, 刘寒松, 等. 上浆剂对国产T800级碳纤维增强热固性复合材料界面性能的影响[J]. 复合材料学报, 2022, 39(9): 1-13 doi: 10.13801/j.cnki.fhclxb.20220104.001
引用本文: 王新庆, 柳肇博, 刘寒松, 等. 上浆剂对国产T800级碳纤维增强热固性复合材料界面性能的影响[J]. 复合材料学报, 2022, 39(9): 1-13 doi: 10.13801/j.cnki.fhclxb.20220104.001
Xinqing WANG, Zhaobo LIU, Hansong LIU, Yan ZHAO, Zhidong GUAN. Effect of sizing agent on interfacial properties of domestic T800 grade carbon fiber reinforced thermosetting composites[J]. Acta Materiae Compositae Sinica, 2022, 39(9): 1-13. doi: 10.13801/j.cnki.fhclxb.20220104.001
Citation: Xinqing WANG, Zhaobo LIU, Hansong LIU, Yan ZHAO, Zhidong GUAN. Effect of sizing agent on interfacial properties of domestic T800 grade carbon fiber reinforced thermosetting composites[J]. Acta Materiae Compositae Sinica, 2022, 39(9): 1-13. doi: 10.13801/j.cnki.fhclxb.20220104.001

上浆剂对国产T800级碳纤维增强热固性复合材料界面性能的影响

doi: 10.13801/j.cnki.fhclxb.20220104.001
详细信息
    通讯作者:

    肇研,博士,教授,博士生导师,研究方向为先进树脂基复合材料  E-mail: jennyzhaoyan@buaa.edu.cn

  • 中图分类号: TB332

Effect of sizing agent on interfacial properties of domestic T800 grade carbon fiber reinforced thermosetting composites

  • 摘要: 碳纤维具有力学性能优、密度低、耐腐蚀、耐高温等一系列优异性能,近年来被广泛应用于航空、航天等重要领域。相较于国外的高强中模碳纤维,国内虽有T800级碳纤维与之对应,但是国内对高性能碳纤维的研究工作起步晚,研究尚不充分。上浆剂作为碳纤维表面的重要组成部分,对碳纤维的表面性能有着重要的影响,进而影响复合材料的界面性能。本文采用SEM、TGA、XPS等表征手段,研究分析了上浆剂对国产T800级碳纤维的影响,对碳纤维的表面物化特性及其不同先进树脂基复合材料的微观界面性能进行研究,为国产高性能碳纤维的产品发展提供借鉴意义。

     

  • 1  不同碳纤维侧面形貌的的SEM图像:((a), (g)) 800-1;((b), (h)) 800-2;((c), (i)) 800-3;((d), (j)) 800-4;((e), (k)) 800-5;((f), (l)) 800-6

    1.  SEM images of carbon fibers surface morphology: ((a), (g)) 800-1; ((b), (h)) 800-2; ((c), (i)) 800-3; ((d), (j)) 800-4; ((e), (k)) 800-5; ((f), (l)) 800-6

    图  2  不同碳纤维断口截面形貌图(×10000倍): (a) 800-1;(b) 800-2;(c) 800-3;(d) 800-4;(e) 800-5;(f) 800-6

    Figure  2.  SEM images of carbon fibers fracture section(×10000 times): (a) 800-1; (b) 800-2; (c) 800-3; (d) 800-4; (e) 800-5; (f) 800-6

    图  3  上浆剂在N2中的热重曲线

    Figure  3.  TG curves of sizing agent in N2

    图  5  碳纤维表面XPS的C1s拟合峰:(a) 800-1;(b) 800-2;(c) 800-3;(d) 800-4;(e) 800-5;(f) 800-6

    Figure  5.  XPS C1s spectra of carbon fiber: (a) 800-1; (b) 800-2; (c) 800-3; (d) 800-4; (e) 800-5; (f) 800-6

    图  4  碳纤维表面的XPS全谱扫描分析

    Figure  4.  XPS spectrum of carbon fiber

    图  6  浸润性能测试示意图:(a) 树脂在碳纤维表面形成的树脂微球;(b) 参数m测量示意图

    Figure  6.  Infiltration performance test schematic diagram: (a) Resin in the carbon fiber surface resin microspheres; (b) Schematic diagram of parameter m measurement

    a—Short axis of the ellipse; b—Long axis of the ellipse

    图  7  碳纤维增强树脂基复合材料的微观界面剪切强度

    Figure  7.  Interfacial shear strength of carbon fiber reinforced resin matrix composites

    图  8  碳纤维增强树脂基复合材料的微脱粘断面形貌:(a) 800-1/A;(b) 800-1/B;(c) 800-2/A;(d) 800-2/B;(e) 800-3/A;(f) 800-3/B;(g) 800-4/A;(h) 800-4/B;(i) 800-5/A;(j) 800-5/B;(k) 800-6/A;(l) 800-6/B

    Figure  8.  Interfacial shear strength fracture appearance of carbon fiber reinforced resin matrix composites: (a) 800-1/A; (b) 800-1/B; (c) 800-2/A; (d) 800-2/B; (e) 800-3/A; (f) 800-3/B; (g) 800-4/A; (h) 800-4/B; (i) 800-5/A; (j) 800-5/B; (k) 800-6/A; (l) 800-6/B

    9  碳纤维增强树脂基复合材料的断面形貌:((a), (b)) 800/A树脂;((c), (d)) 800/B树脂

    9.  Section morphologies of carbon fiber reinforced resin matrix composites: ((a), (b)) 800/A resin; ((c), (d)) 800/B resin

    表  1  碳纤维表面上浆处理

    Table  1.   Sizing treatment of carbon fiber

    Carbon fiberMolecular weightSizing agent content/%
    800-1Low1.3
    800-2High1.3
    800-3Low1.4
    800-4High1.4
    800-5Low1.6
    800-6High1.6
    下载: 导出CSV

    表  2  六种碳纤维上浆量测试结果

    Table  2.   Test results of sizing agent content of six kinds of carbon fibers

    Carbon fiberSizing agent content/%
    800-11.30
    800-21.32
    800-31.36
    800-41.39
    800-51.63
    800-61.63
    下载: 导出CSV

    表  3  碳纤维表面上浆剂失重5wt%时的热分解温度

    Table  3.   Thermal decomposition temperature at 5wt% mass loss of carbon fiber surface sizing agent

    Sizing agent5wt% mass thermal
    decomposition temperature/℃
    800-A1290.2
    800-A2274.5
    800-A3278.2
    800-A4274.2
    800-A5276.6
    800-A6271.1
    下载: 导出CSV

    表  4  碳纤维表面元素成分及含量

    Table  4.   Surface element composition and content of carbon fiber

    Carbon fiberC1s
    284.8 eV
    O1s
    532.7 eV
    N1s
    400.9 eV
    S2p
    168.6 eV
    Si2p
    102.3 eV
    O/C
    800-175.3718.471.740.404.020.245
    800-280.3316.412.850.4100.204
    800-376.1917.342.020.563.900.228
    800-477.3116.252.2804.150.210
    800-575.6717.261.960.624.500.228
    800-677.2716.411.960.523.840.212
    下载: 导出CSV

    表  5  上浆后碳纤维表面XPS的C1s拟合峰结果

    Table  5.   XPS C1s spectrum of carbon fiber

    Carbon fiber—C—C— or
    —C—H/%
    284.8 eV
    —C—OH or
    —C—OR/%
    286.3 eV
    —C=O/%
    287.8 eV
    —COOH or —COOR/%
    288.9 eV
    Active C/%
    800-156.8533.341.588.2343.15
    800-254.1535.300.4210.1345.85
    800-360.6329.471.858.0539.37
    800-452.5725.0611.9710.4047.43
    800-566.0922.693.537.6933.91
    800-660.6431.890.037.4439.36
    下载: 导出CSV

    表  6  碳纤维表面的浸润性能测试结果

    Table  6.   Wetting property test results of carbon fiber surface

    Carbon fiberParameter m
    A resinB resin
    800-10.7240.735
    800-20.7210.720
    800-30.7150.718
    800-40.7360.715
    800-50.7190.725
    800-60.7390.728
    下载: 导出CSV

    表  7  碳纤维增强复合材料宏观力学性能

    Table  7.   Macroscopic mechanical properties of carbon fiber reinforced composites

    SampleILSS/MPaFlexural strength/MPa
    800/A resin111.751800
    800/B resin87.431900
    Note: ILSS—Interlaminar shear strength.
    下载: 导出CSV
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  • 收稿日期:  2021-10-09
  • 录用日期:  2021-12-26
  • 修回日期:  2021-12-09
  • 网络出版日期:  2022-01-04
  • 刊出日期:  2022-09-15

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