芳纶捆绑对纬编双轴向多层衬纱织物增强环氧树脂复合材料层间性能的影响

齐业雄; 姜亚明; 李嘉禄

doi:10.13801/j.cnki.fhclxb.20190725.001

芳纶捆绑对纬编双轴向多层衬纱织物增强环氧树脂复合材料层间性能的影响

doi: 10.13801/j.cnki.fhclxb.20190725.001

齐业雄^{1, 2, ,},
姜亚明^{1, 2},
李嘉禄²

1.
天津工业大学　纺织科学与工程学院，天津 300387
2.
天津工业大学　天津市先进纺织复合材料重点实验室，天津 300387

基金项目: 天津市自然科学基金(18JCQNJC73300; 18JCZDJC10020)；企业合作横向项目(JS20180422)

详细信息

通讯作者:
齐业雄，博士，讲师，研究方向为复合材料设计与成型　E-mail：qiyexiong@tjpu.edu.cn

中图分类号: TB332
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- 被引次数: 0
出版历程
- 收稿日期: 2019-06-06
- 录用日期: 2019-07-12
- 网络出版日期: 2019-07-25
- 刊出日期: 2020-05-15

Effect of aramid bundling yarn types on interlaminar properties of multilayered biaxial weft knitted fabric reinforced epoxy composites

QI Yexiong^{1, 2
, ,},
JIANG Yaming^{1, 2},
LI Jialu²

1.
School of Textile Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China
2.
Key Laboratory of Advanced Textile Composites (Ministry of Education), Tianjin Polytechnic University, Tianjin 300387, China

摘要

摘要: 将芳纶作为捆绑纱制备纬编双轴向多层衬纱(MBWK)织物增强环氧树脂复合材料，研究了MBWK织物增强环氧树脂复合材料层间性能及芳纶捆绑纱对其层间性能的影响。通过三点弯曲和短梁剪切测试，得到MBWK织物增强环氧树脂复合材料的弯曲性能和层间剪切性能，并通过Aramis V6三维场应变测量系统观察实验过程中层间应变变化。与传统涤纶低弹丝捆绑的MBWK织物增强环氧树脂复合材料相比，芳纶捆绑MBWK织物增强环氧树脂复合材料的弯曲性能和层间剪切性能明显提升，弯曲强度和层间剪切强度分别提高了14.21%和12.70%；弯曲模量提高了25.49%。芳纶捆绑MBWK织物增强环氧树脂复合材料在受到面外载荷时，纵向应变(Epsilon X)和层间剪切应变(Epsilon XZ)在中性面区域内较大，且在受到面外载荷时，芳纶捆绑纱起到有效抑制复合材料分层的作用。
- 纺织复合材料 /
- 芳纶 /
- 涤纶 /
- 弯曲性能 /
- 层间剪切性能 /
- 三维场应变测量
Abstract: The interlaminar properties of multilayered biaxial weft knitted (MBWK) fabric reinforced epoxy composites were studied by using aramid yarns as bundling yarns. The interlaminar properties of MBWK fabric reinforced epoxy composites and the effects of aramid bundling yarn on the interlaminar properties were analyzed. The bending and interlaminar shear properties of the MBWK fabric reinforced epoxy composites were obtained by three-point bending and short-beam shear tests. The interlaminar strain changes were observed by Aramis V6 digital image correlation system. Compared with the traditional MBWK fabric reinforced epoxy composites bonded with polyester filaments, the bending and interlaminar shear properties of the MBWK fabric reinforced epoxy composites bonded with aramid fibers are improved significantly with the bending strength, interlaminar shear strength and the bending modulus increment of 14.21%, 12.70% and 25.49%, respectively. The longitudinal strain (Epsilon X) and interlaminar shear strain (Epsilon XZ) of MBWK fabric reinforced epoxy composites bound with aramid fibers are larger in the neutral location when the composites are subjected to the out-of-plane loads. And aramid yarns play an effective role in restraining the delamination of composites when subjected to out-of-plane loads.
- textile composites /
- aramid /
- polyester /
- bending properties /
- interlaminar shear properties /
- digital image correlation

HTML全文

图 1 不同捆绑纱类型的MBWK织物增强环氧树脂复合材料照片

Figure 1. Photograph of MBWK fabric reinforced epoxy composites with different kinds of binding yarns((a) Aramid-binding MBWK fabric reinforced epoxy composites; (b) Polyester-binding MBWK fabric reinforced epoxy composites)

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图 2 芳纶捆绑MBWK织物增强环氧树脂复合材料铺层情况

Figure 2. Layering of aramid-binding MBWK fabric reinforced epoxy composites

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图 3 MBWK织物增强环氧树脂复合材料弯曲和层间剪切试样尺寸及形状

Figure 3. Size and shape of bending and interlaminar shear specimens of MBWK fabric reinforced epoxy composites((a) Front view of bending specimen; (b) Front view of interlaminar shearing specimen; (c) Side view of bending specimen; (d) Side view of interlaminar shearing specimen)

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图 4 实验测试装置

Figure 4. Testing devices

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图 5 芳纶捆绑和涤纶捆绑MBWK织物增强环氧树脂复合材料的弯曲性能

Figure 5. Bending properties of aramid-binding and polyester-binding MBWK fabric reinforced epoxy composites

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图 6 芳纶捆绑MBWK织物增强环氧树脂复合材料的弯曲失效模式

Figure 6. Bending failure mode of aramid-binding MBWK fabric reinforced epoxy composites(Epsilon X—Longitudinal strain)

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图 7 芳纶捆绑和涤纶捆绑MBWK织物增强环氧树脂复合材料的层间剪切强度

Figure 7. Interlaminar shear strength of aramid-binding and polyester-binding MBWK fabric reinforced epoxy composites

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图 8 芳纶捆绑MBWK织物增强环氧树脂复合材料的层间剪切失效模式

Figure 8. Interlaminar shear failure mode of aramid-binding MBWK fabric reinforced epoxy composites(Epsilon XZ—Interlaminar shear strain )

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图 9 芳纶捆绑MBWK织物增强环氧树脂复合材料的层间破坏形貌

Figure 9. Interlaminar failure morphology of aramid-binding MBWK fabric reinforced epoxy composites

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表 1 纬编双轴向多层衬纱(MBWK)织物增强树脂复合材料的原材料基本性能

Table 1. Basic materials properties of multilayered biaxial weft knitted (MBWK) fabric reinforced epoxy composites

Materials Tensile
property/MPa Tensile
modulus/GPa Density/
(g•m⁻²)

Carbon 3 530 230 1.76
Polyester 767 14 1.37
Aramid 2 923 70 1.44
TDE-85 epoxy 100 3.38 1.17

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