Effects of fiber addition on the mechanical and thermal properties of jute fiber reinforced resin composites

被引：0
|
作者：
He L. [1 ,2 ]
Liu L. [1 ,2 ]
Su S. [3 ]
Xia F. [1 ,2 ]
Hou S. [1 ,2 ]
机构：
[1] State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha
[2] College of Mechanical and Vehicle Engineering, Hunan University, Changsha
[3] College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2023年 / 40卷 / 04期
关键词：
composites; crystallization behavior; fiber addition; heat deflection temperature; interface; jute fiber; linear expansion coefficient; mechanical properties;
D O I：
10.13801/j.cnki.fhclxb.20220802.001
中图分类号：
学科分类号：
摘要：
In order to develop green bast fiber reinforced resin composites with low carbon, energy saving and excellent mechanical and thermal properties and widen their applications, a new kind of modified jute fiber reinforced polypropylene composites (modified JF/PP) with fiber content in range of 10wt%-25wt% was fabricated by a hybrid technique of mill mixing and injection molding process, in which the jute fiber was modified with amino silicone oil invented by our research group in the present work. The effects of modified bast fiber content on the mechanical properties, crystallization behavior, heat resistance (heat deflection temperature) and thermal dimensional stability (linear expansion coefficient) of JF/PP composites were systematically and comprehensively studied. The compatibility and interfacial bonding strength in between the modified and non-modified fiber and PP matrix were analyzed by contact angle test and SEM images. The results indicate that the tensile and flexural strength of JF/PP composites increase with the increase of modified jute fiber content, while the impact strength decreases because the interfacial adhesion between jute fiber and polypropylene matrix is enhanced by modifying jute fiber with amino silicone oil. It is also found from the analyses of DSC, heat deflection temperature and linear expansion coefficient that the addition of modified JF can promote the heterogeneous nucleation of PP and hindered the mobility of PP molecular chain, which lead to the enhancement of the heat resistance property of modified JF/PP composites. The higher the fiber content, the higher heat resistance property of the modified JF/PP will be. When the content of modified JF is 25wt%, the heat deflection temperature of the modified JF/PP is 142.5 ℃, which is 53.5% higher than that of pure PP. Meanwhile, the linear expansion coefficient (CLE) of the modified JF/PP composites decrease significantly with the increase of fiber addition, which suggests that the fiber addition can significantly improve the thermal dimensional stability of the modified JF/PP composites. The linear expansion coefficients of pure PP and the modified JF/PP composites present anisotropic feature. Compared with pure PP, when the fiber addition is 25wt%, the linear expansion coefficientsof the composites decrease by 73.2% in the parallel flow direction and 14.4% in the vertical flow direction. The better mechanical and thermal properties of the modified JF/PP composites will achieve when the fiber addition is in range of 15wt%-20wt%. © 2023 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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页码：2038 / 2048
页数：10
相关论文
共 42 条
  • [1] WANG J, WU Q, LIU J, Et al., Vehicle emission and atmospheric pollution in China: Problems, progress, and prospects[J], PeerJ, 7, pp. e6932-e6953, (2019)
  • [2] SANTOS J, GOUVEIA R M, SILVA F., Designing a new sustainable approach to the change for lightweight materials in structural components used in truck industry[J], Journal of Cleaner Production, 164, 15, pp. 115-123, (2017)
  • [3] SELLITTO A, RICCIO A, MAGNO G, Et al., Feasibility study on the redesign of a metallic car hood by using composite materials[J], International Journal of Automotive Technology, 21, 2, pp. 471-479, (2020)
  • [4] SHA H A J S, PATIL P P., A review on natural fiber composites[J], Journal of Xidian University, 14, 6, pp. 2844-2849, (2020)
  • [5] WANG Chunhong, LU Chao, JIA Ruiting, Et al., Moisture absorption and mechanical properties of kenaf fiber-cotton fiber blended fabric/epoxy composite[J], Acta Materiae Compositae Sinica, 37, 7, pp. 1581-1589, (2020)
  • [6] HE L, LI W, CHEN D, Et al., Effects of amino silicone oil modification on properties of ramie fiber and ramie fiber/polypropylene composites[J], Materials & Design, 77, 15, pp. 142-148, (2015)
  • [7] AGARWAL J, SAHOO S, MOHANTY S, Et al., Progress of novel techniques for lightweight automobile applications through innovative eco-friendly composite materials: A review[J], Journal of Thermoplastic Composite Materials, 33, 7, pp. 978-1013, (2020)
  • [8] HE L, XIA F, WANG Y, Et al., Mechanical and dynamic mechanical properties of the amino silicone oil emulsion modified ramie fiber reinforced composites[J], Polymers, 13, 23, pp. 4083-4098, (2021)
  • [9] SUN Hongyu, LV Xingcong, YUAN Naxin, Et al., Strength analysis and extrusion process optimization of wood-plastic composite by response surface method[J], Acta Materiae Compositae Sinica, 38, 6, pp. 1838-1846, (2021)
  • [10] KUMAR R, SUBRAMANINAN H S., Experimental and micro-structural evaluation on mechanical properties of sisal fiber reinforced biocomposites[J], Steel and Composite Structures, 33, 2, pp. 299-306, (2019)
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