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3D打印连续纤维增强聚碳酸酯复合材料预浸丝制备与性能

杨来侠 刘波 刘腾飞 高扬 田小永

杨来侠, 刘波, 刘腾飞, 等. 3D打印连续纤维增强聚碳酸酯复合材料预浸丝制备与性能[J]. 复合材料学报, 2023, 40(10): 5654-5665. doi: 10.13801/j.cnki.fhclxb.20230213.003
引用本文: 杨来侠, 刘波, 刘腾飞, 等. 3D打印连续纤维增强聚碳酸酯复合材料预浸丝制备与性能[J]. 复合材料学报, 2023, 40(10): 5654-5665. doi: 10.13801/j.cnki.fhclxb.20230213.003
YANG Laixia, LIU Bo, LIU Tengfei, et al. Preparation and properties of 3D printing continuous fiber reinforced polycarbonate composite prepreg filaments[J]. Acta Materiae Compositae Sinica, 2023, 40(10): 5654-5665. doi: 10.13801/j.cnki.fhclxb.20230213.003
Citation: YANG Laixia, LIU Bo, LIU Tengfei, et al. Preparation and properties of 3D printing continuous fiber reinforced polycarbonate composite prepreg filaments[J]. Acta Materiae Compositae Sinica, 2023, 40(10): 5654-5665. doi: 10.13801/j.cnki.fhclxb.20230213.003

3D打印连续纤维增强聚碳酸酯复合材料预浸丝制备与性能

doi: 10.13801/j.cnki.fhclxb.20230213.003
基金项目: 基础加强项目(2017-JCJQ-ZD-035);国家自然科学基金(52205413);中国博士后科学基金(2022M712534)
详细信息
    通讯作者:

    杨来侠,博士,教授,博士生导师,研究方向为快速成形与模具制造 E-mail: 1833680962@qq.com

    田小永,博士,教授,博士生导师,研究方向为多材料、复合材料3D打印技术及其应用 E-mail: leoxyt@xjtu.edu.cn

  • 中图分类号: TB332

Preparation and properties of 3D printing continuous fiber reinforced polycarbonate composite prepreg filaments

Funds: Foundation Strengthening Project (2017-JCJQ-ZD-035); National Natural Science Foundation of China (52205413); China Postdoctoral Science Foundation (2022M712534)
  • 摘要: 为降低3D打印连续纤维增强聚合物(CFRP)复合材料的孔隙率,提高树脂对纤维的浸渍程度,需要开展熔融浸渍连续纤维预浸丝制备与3D打印性能研究,开发纤维预浸渍一体化设备。本文以玻璃纤维(GF)、碳纤维(CF)作为增强体,聚碳酸酯(PC)为基体,开发熔融浸渍预浸丝制备工艺,研究浸渍工艺对预浸丝性能的影响。以预浸丝为原料,研究3D打印成形工艺参数对纤维含量、孔隙率及力学性能的影响规律。结果表明:连续玻璃纤维增强聚碳酸酯(CGF/PC)预浸丝的拉伸强度为627.8 MPa,当打印温度为260℃,分层厚度为0.10 mm,扫描间距为1.0 mm时,连续碳纤维增强聚碳酸酯(CCF/PC)复合材料纤维含量为28.66vol%,拉伸强度和模量分别644.8 MPa和85.6 GPa,优化后孔隙率为3.87%。当打印温度为280℃,分层厚度为0.14 mm,扫描间距为1.2 mm时,CGF/PC复合材料纤维含量为51.35vol%,拉伸强度和模量分别为381.4 MPa和23.6 GPa,优化后孔隙率为4.41%。

     

  • 图  1  (a) 纤维预浸丝熔融浸渍原理;(b) 熔融浸渍设备实物图

    Figure  1.  (a) Principle of melt impregnation of fiber prepreg yarn; (b) Physical diagram of melt impregnation equipment

    F—Fiber; R—Radius; P—Pressure; GF—Glass fiber; PC—Polycarbonate

    图  2  拉伸试样:(a) CCF/PC;(b) CGF/PC

    Figure  2.  Tensile specimens: (a) CCF/PC; (b) CGF/PC

    图  3  不同浸渍温度对CGF/PC预浸丝拉伸性能影响

    Figure  3.  Effect of different impregnation temperatures on the tensile properties of CGF/PC prepreg wires

    图  4  不同牵引速度对CGF/PC预浸丝拉伸性能影响

    Figure  4.  Effect of different traction speeds on the tensile properties of CGF/PC prepreg wires

    图  5  不同牵引速度的CGF/PC预浸丝微观形貌:(a) 100 mm/min;(b) 300 mm/min;(c) 800 mm/min

    Figure  5.  Microscopic morphology of CGF/PC prepreg wire with different traction speeds: (a) 100 mm/min; (b) 300 mm/min; (c) 800 mm/min

    图  6  不同进给速率对CGF/PC预浸丝拉伸性能影响

    Figure  6.  Effect of different feed rates on the tensile properties of CGF/PC prepreg wires

    图  7  分层厚度对CCF/PC (a)和CGF/PC (b)复合材料拉伸性能影响

    Figure  7.  Effect of layering thickness on tensile properties of CCF/PC (a) and CGF/PC (b) composite

    图  8  CCF/PC复合材料纤维线间结合及搭接示意图:(a) 扫描间距0.8 mm;(b) 扫描间距1.2 mm

    Figure  8.  Schematic diagram of CCF/PC the bond and lap between fiber threads: (a) Scan spacing 0.8 mm; (b) Scan spacing 1.2 mm

    图  9  扫描间距对CCF/PC (a)和CGF/PC (b)复合材料拉伸性能影响

    Figure  9.  Effect of scan spacing on tensile properties of CCF/PC (a) and CGF/PC (b) composites

    图  10  打印温度对CCF/PC (a)和CGF/PC (b)复合材料拉伸性能影响

    Figure  10.  Effect of printing temperature on tensile properties of CCF/PC (a) and CGF/PC (b) composites

    图  11  CCF/PC复合材料内部孔隙结构:(a) 分层厚度0.10 mm;(b) 分层厚度0.16 mm;(c) 扫描间距0.8 mm;(d) 扫描间距1.2 mm;CGF/PC复合材料内部孔隙结构扫描间距:(e) 分层厚度0.14 mm;(f) 分层厚度0.20 mm;(g) 扫描间距1.0 mm;(h) 扫描间距1.4 mm

    Figure  11.  Internal pore structure of CCF/PC composites: (a) Layered thickness 0.10 mm; (b) Layered thickness 0.16 mm; (c) Scan spacing 0.8 mm; (d) Scan spacing 1.4 mm; Internal pore structure of CGF/PC composites scan spacing: (e) Layered thickness 0.14 mm; (f) Layered thickness 0.20 mm; (g) Scan spacing 1.0 mm; (h) Scan spacing 1.4 mm

    图  12  CCF/PC微观形貌:(a) 扫描间距0.8 mm;(b) 扫描间距1.0 mm;(c) 扫描间距1.2 mm;CGF/PC复合材料微观形貌:(d) 扫描间距1.0 mm;(e) 扫描间距1.2 mm;(f) 扫描间距1.4 mm

    Figure  12.  CCF/PC microstructure: (a) Scan spacing 0.8 mm; (b) Scan spacing 1.0 mm; (c) Scan spacing 1.2 mm; CGF/PC composite microstructure: (d) Scan spacing 1.0 mm; (e) Scan spacing 1.2 mm; (f) Scan spacing 1.4 mm

    图  13  CCF/PC复合材料断面微观形貌:(a) 分层厚度0.10 mm;(b) 分层厚度0.16 mm;(c) 扫描间距0.8 mm;(d) 扫描间距1.2 mm

    Figure  13.  Microscopic morphologies of CCF/PC composite cross-section: (a) Layered thickness 0.10 mm; (b) Layered thickness 0.16 mm; (c) Scan spacing 0.8 mm; (d) Scan spacing 1.2 mm

    图  14  CGF/PC复合材料断面微观形貌:(a) 分层厚度0.14 mm;(b) 分层厚度0.20 mm;(c) 扫描间距1.0 mm;(d) 扫描间距1.4 mm

    Figure  14.  Microscopic morphologies of CGF/PC composite section: (a) Delamination thickness 0.14 mm; (b) Delamination thickness 0.20 mm; (c) Scan spacing1.0 mm; (d) Scan spacing 1.4 mm

    表  1  连续碳纤维增强聚碳酸酯(CCF/PC)预浸丝的制备工艺参数

    Table  1.   Preparation process parameters of continuous carbon fiber reinforced polycarbonate (CCF/PC) prepreg

    Main process parametersRange of values
    Resin feed rate (E)/(r∙min−1)4.0
    Traction speed (U)/(mm∙min−1)500
    Impregnation temperature (TI)/℃260
    下载: 导出CSV

    表  2  连续玻璃纤维(CGF)预浸丝的制备工艺参数

    Table  2.   Preparation process parameters of continuous glass fiber (CGF) prepreg

    Main process parametersRange of valuesOther process parameters
    E/(r∙min−1)2.0, 3.0, 4.0, 5.0U=300, TI=270
    U/(mm∙min−1)100, 300, 500, 700, 800E=3.0, TI=270
    TI/℃240, 250, 270, 290E=3.0, U=300
    下载: 导出CSV

    表  3  CCF/PC成形工艺参数

    Table  3.   CCF/PC molding process parameters

    Main process parametersRange of valuesOther process parameters
    Layering thickness (H)/mm0.10, 0.13, 0.16S=1.0, TP=260
    Scan spacing (S)/mm0.8, 1.0, 1.2H=0.13, TP=260
    Print temperature (TP)/℃240, 260, 280H=0.13, S=1.0
    下载: 导出CSV

    表  4  CGF/PC成形工艺参数

    Table  4.   CGF/PC molding process parameters

    Main process parametersRange of valuesOther process parameters
    H/mm0.14, 0.17, 0.20S=1.2, TP=280
    S/mm1.0, 1.2, 1.4H=0.17, TP=280
    TP/℃270, 280, 290H=0.17, S=1.2
    下载: 导出CSV

    表  5  不同温度下PC熔融指数(MFR)

    Table  5.   Melt index (MFR) of PC at different temperatures

    Temperature/℃ MFR/(g∙(10 min)−1)
    250 5.13
    270 10.20
    290 25.63
    下载: 导出CSV

    表  6  不同工艺参数的CCF/PC复合材料纤维含量

    Table  6.   Fiber content of CCF/PC composites with different process parameters

    Process parametersFiber content/vol%
    Constants/mmVariables/mm
    S=1.0H=0.1028.66
    H=0.1326.78
    H=0.1623.57
    H=0.13S=0.828.62
    S=1.026.78
    S=1.225.18
    下载: 导出CSV

    表  7  不同工艺参数的CGF/PC复合材料纤维含量

    Table  7.   Fiber content of CGF/PC composites with different process parameters

    Process parametersFiber content/vol%
    Constants/mmVariables/mm
    S=1.2H=0.1451.35
    H=0.1746.87
    H=0.2043.93
    H=0.17S=1.050.95
    S=1.246.87
    S=1.440.84
    下载: 导出CSV

    表  8  不同工艺参数对应的CCF/PC复合材料孔隙率

    Table  8.   Porosity of CCF/PC composites corresponding to different process parameters

    Process parametersPorosity/%
    Constants/mmVariables/mm
    S=1.0 H=0.10 3.87
    H=0.13 8.64
    H=0.16 8.76
    H=0.13 S=0.8 7.29
    S=1.0 8.64
    S=1.2 14.22
    下载: 导出CSV

    表  9  不同工艺参数对应的CGF/PC复合材料孔隙率

    Table  9.   Porosity of CGF/PC composites corresponding to different process parameters

    Process parametersPorosity/%
    Constants/mmVariables/mm
    S=1.2 H=0.14 4.41
    H=0.17 5.24
    H=0.20 5.56
    H=0.17 S=1.0 6.45
    S=1.2 5.24
    S=1.4 14.44
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-10-28
  • 修回日期:  2022-12-27
  • 录用日期:  2023-01-22
  • 网络出版日期:  2023-02-14
  • 刊出日期:  2023-10-15

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