洋麻纤维-棉纤维混纺织物/环氧树脂复合材料力学及吸湿性能

王春红; 鹿超; 贾瑞婷; 陆鑫; 左恒峰; 王瑞

doi:10.13801/j.cnki.fhclxb.20191226.002

洋麻纤维-棉纤维混纺织物/环氧树脂复合材料力学及吸湿性能

doi: 10.13801/j.cnki.fhclxb.20191226.002

王春红^{1, 2, ,},
鹿超^1,,
贾瑞婷^3,,
陆鑫^4,,
左恒峰^2,,
王瑞^1,

1.
天津工业大学　纺织科学与工程学院，天津 300387
2.
清华大学　汽车安全与节能国家重点实验室，北京 100084
3.
中标能效科技(青岛)有限公司，青岛 266100
4.
常熟理工学院　艺术与纺织服装工程学院，常熟 215500

基金项目: 国家自然科学基金(11802205)；清华大学汽车安全与节能国家重点实验室开放基金(FK1811)

详细信息

通讯作者:
王春红，博士，教授，研究方向为绿色环保功能型纤维、纺织品及纺织复合材料 E-mail：18802231369@163.com

中图分类号: TB332
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- 文章访问数: 1017
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- 被引次数: 0
出版历程
- 收稿日期: 2019-08-30
- 录用日期: 2019-11-15
- 网络出版日期: 2019-12-26
- 刊出日期: 2020-07-15

Moisture absorption and mechanical properties of kenaf fiber-cotton fiber blended fabric/epoxy composite

WANG Chunhong^{1, 2
, ,},
LU Chao^1
,,
JIA Ruiting^3
,,
LU Xin^4
,,
ZUO Hengfeng^2
,,
WANG Rui^1
,

1.
School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
2.
State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
3.
China Standard Certification Co. Ltd., Qingdao 266100, China
4.
School of Art and Textile Clothing Engineering, Changshu Institute of Technology, Changshu 215500, China

摘要

摘要: 采用碱氧一浴法对洋麻纤维(KF)进行精细化处理，并制备了不同混纺质量比的精细化处理KF-棉纤维(KF-CF)混纺织物及KF-CF/环氧树脂(EP)复合材料。通过纤维强度、细度测试和FTIR、TG、SEM研究了精细化处理对KF性能的影响，通过对KF-CF/EP复合材料力学性能分析得到最佳混纺质量比，探究了最佳混纺质量比KF-CF/EP复合材料在湿热及化学环境下的吸湿性能。结果表明：精细化处理后的KF直径降低了30.66%，拉伸模量提高了31.24%，柔软度提高了13.20%，热稳定性得到提高；当KF与CF混纺质量比为40∶60时，KF-CF/EP复合材料力学性能最优，拉伸强度为101.90 MPa，弯曲强度为189.64 MPa；在湿热环境下，时间越长，温度越高，KF-CF/EP复合材料的吸水率越高，碱性环境会导致KF-CF/EP复合材料吸水率提高。
- 洋麻纤维 /
- 精细化处理 /
- 复合材料 /
- 力学性能 /
- 吸湿性
Abstract: The kenaf fiber(KF) was modified with the alkali peroxide in the aqueous solution. The refined KF-cotton fiber(KF-CF) blended fabrics with different blending mass ratios and KF-CF/epoxy(EP) composites were prepared. The single fiber tester, microscope, FTIR, TG and SEM were used to study the effect of fine treatment on the properties of KF. The best blending mass ratio was obtained by analyzing the mechanical properties of KF-CF/EP composites. The hygroscopicity of KF-CF/EP composites under hydrothermal and chemical conditions was investigated at the optimum blending ratio. The results show that the diameter of KF decreases by 30.66%, the Young’s modulus increases by 31.24%, the softness increases by 13.20%, and the thermal stability improves after refinement treatment. The KF-CF/EP composite with mass ratio of 40∶60 has the best mechanical properties with tensile strength of 101.90 MPa and flexural strength of 189.64 MPa. In the humid and hot environment, the longer the time and the higher the temperature, the higher the water absorption rate of the KF-CF/EP composite, and the alkaline environment leads the water absorption rate of the KF-CF/EP composite to increase.
- kenaf fiber /
- fine treatment /
- composites /
- mechanical property /
- moisture absorption

HTML全文

图 1 洋麻纤维(KF)和棉纤维(CF)的直径

Figure 1. Diameters of kenaf fiber( KF ) and cotton fiber( CF )

下载: 全尺寸图片幻灯片

图 2 KF和CF的拉伸性能

Figure 2. Tensile properties of KF and CF

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图 3 精细化处理前后KF的FTIR图谱

Figure 3. FTIR spectra of KF before and after refinement treatment

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图 4 精细化处理前后KF表面的SEM图像

Figure 4. SEM images of surface of KF before and after refinement treatment

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图 5 KF和CF的TG曲线

Figure 5. TG curves of KF and CF

下载: 全尺寸图片幻灯片

图 6 不同KF与CF混纺质量比的KF-CF混纺纱线和KF-CF/EP复合材料的照片及KF-CF/EP复合材料断裂面的SEM图像

Figure 6. Pictures of KF-CF blended yarn and KF-CF/EP composite and SEM images of fracture surface KF-CF/EP composite with different blending mass ratios of KF to CF

下载: 全尺寸图片幻灯片

图 7 不同KF与CF混纺质量比的KF-CF/EP复合材料拉伸性能和弯曲性能

Figure 7. Tensile and flexural properties of KF-CF/EP composite with different blending mass ratios of KF to CF

下载: 全尺寸图片幻灯片

图 8 湿热环境下KF-CF/EP复合材料的吸水性能

Figure 8. Water absorption property of KF-CF/EP composite in hygrothermal environment

下载: 全尺寸图片幻灯片

图 9 化学环境下KF-CF/EP复合材料的吸水性能

Figure 9. Water absorption property of KF-CF/EP composite in chemical environment

下载: 全尺寸图片幻灯片

表 1 精细化处理前后KF的断裂捻回数

Table 1. Twist numbers at fracture of KF before and after refinement treatment

Fibers Twist number at fracture/(T(10 cm)⁻¹)

Untreated KF 15.2±2.7
Treated KF 19.7±2.4

下载: 导出CSV

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