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单向连续纤维和长纤维混杂增强聚丙烯力学性能研究 被引量:5

Study on the mechanical properties of unidirectional continuous fiber and long fiber reinforced polypropylene hybrid composites
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摘要 本文制备了一种单向连续玻璃纤维增强聚丙烯(UD-GFRT)和长玻璃纤维增强聚丙烯(LFT)的混杂复合材料,它能够显著改善LFT的冲击韧性。通过对力学性能的表征,发现当纤维中单向连续纤维成分达到50%之前,混杂复合材料的强度、模量和冲击韧性都会随单向连续纤维的含量不断增长;而达到50%之后,强度和模量增长并不显著,只有冲击韧性依然上升,UD-GFRT的冲击韧性可达到LFT的3.7倍。然后又通过修正的Cox模型及混杂混合定律(RoHM)对该混杂材料的力学性能进行预测,发现模量和预测值相比显示出正偏差,从而表现出正混杂效应,在单向连续纤维成分达到50%时,正效应最显著。该混杂复合材料用做汽车保险杠和车身底板局部增强将会具有很好的碰撞吸能效果。 In this paper,unidirectional continuous fiber and long fiber reinforced polypropylene hybrid composites were prepared,which can improved the impact toughness of LFT dramatically.The mechanical properties were characterized afterwards.It was observed that the strength,modulus and impact toughness of the hybrid composites will increase along with the content of the unidirectional continuous fiber before it reaches 50%.After 50%,the strength and modulus will not go up significantly,while the impact toughness is still growing.The impact toughness of UD-GFRT can reach 3.7times the value of LFT.Then the mechanical properties of the hybrid composites were predicted by modified Cox's model and the rule of hybrid mixtures(RoHM).It was observed that the modulus shows a positive deviation from that predicted by the RoHM and hence exhibits a positive hybrid effect, especially when the content of unidirectional fiber reaches 50%.The hybrid composites will exhibit great crash absorption potential when used as the bumper and the underbody shield of automobiles.
出处 《复合材料学报》 EI CAS CSCD 北大核心 2013年第S1期124-127,共4页 Acta Materiae Compositae Sinica
基金 自然科学基金项目(21376086)
关键词 单向连续纤维 LFT 混杂 ROHM unidirectional continuous fiber LFT hybrid RoHM
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参考文献9

  • 1赵若飞,戴干策.云母和纤维组合增强聚丙烯复合材料Ⅰ.力学性能研究[J].材料研究学报,2001,15(1):83-90. 被引量:5
  • 2Klaus Friedrich,Abdulhakim A. Almajid.Manufacturing Aspects of Advanced Polymer Composites for Automotive Applications[J].Applied Composite Materials.2013(2)
  • 3Kasama Jarukumjorn,Nitinat Suppakarn.Effect of glass fiber hybridization on properties of sisal fiber–polypropylene composites[J].Composites Part B.2009(7)
  • 4Krenchel,H. Fibre Reinforcement . 1964
  • 5Mirbagheri, Jamal,Tajvidi, Mehdi,Hermanson, John C.,Ghasemi, Ismaeil.Tensile properties of wood flour/kenaf fiber polypropylene hybrid composites[].Journal of Applied Polymer Science.2007
  • 6Cox HL.The elasticity and strength of paper and other fibrous materials[].British Journal of Applied Physics.1952
  • 7Panthapulakkal, Suhara,Sain, Mohini.Injection-molded short hemp fiber/glass fiber-reinforced polypropylene hybrid composites -mechanical, water absorption and thermal properties[].Journal of Applied Polymer Science.2007
  • 8Grauer D.,Hangs B.,Reif M.,Martsman A.,Jespersen S.T.Improving mechanical performance of automotive underbody shield with unidirectional tapes in compression-molded direct-long fiber thermoplastics (D-LFT)[].SAMPE Journal.2012
  • 9Emerson D,Grauer D.Using unidirectional glass tapes to improve Impact performance of thermoplastic composites in automotive applications[].SPE ACCE Conference.2012

二级参考文献1

共引文献4

同被引文献46

  • 1杜善义.先进复合材料与航空航天[J].复合材料学报,2007,24(1):1-12. 被引量:1031
  • 2申屠宝卿.CRYSTALLIZATION AND MECHANICAL PROPERTIES OF POLYPROPYLENE FILLED WITH SiO_2 NANOPARTICLES[J].Chinese Journal of Polymer Science,2007,25(3):227-233. 被引量:4
  • 3SUN X L, LI H H, WANG J J, et al. Shear-In- duced Interfacial Structure of Isotactic Polypropyl- ene(iPP) in iPP/Fiber Composites [ J]. Macro- molecules, 2006,39 (25) : 8720 - 8726.
  • 4LI H H, J1ANG S D, WANG J J, et al. Optical Microscopic Study on the Morphologies of Isotac- tic Polypropylene Induced by Its Homogeneity Fi- bers [ J ]. Macromolecules, 2003,36 ( 8 ) : 2802 - 2807.
  • 5LI H H,YAN S K. Surface-induced polymer crys- tallization and the resultant structures and mor- phologies [ J ] . Macromolecules, 2011,44 ( 3 ) : 417 -428.
  • 6SUN X L, LIH H, LIEBERWIRTH I, et al. α and β lnteffacial Structures of the iPP/PET Matrix/ Fiber Systems [ J ] . Macromolecules, 2007,40 (23) : 8244 - 8249.
  • 7S. B. Basttirk,A. Guruscu,M. Tanoglu. Interfa- cial properties of aluminum/glass-fiber reinforced polypropylene sandwich composites [ J ]. Mechan- ics of Composite Materials, 2013,49 (3 : 317 - 324.
  • 8ZHANG Y C, CHEN J Y, LI H L. Functionaliza- tion of high density polyethylene in melt state through ultrasonic initiation and its effect on me- chanical properties of glass fiber reinforced com- posites [ J ]. Polym. Bull.,2007,59:427 - 438.
  • 9RUHI Haque, MOHINI Saxena, S. C. Shitl, et al. Fibre-matrix Adhesion and Properties Evaluation of Sisal Polymer Composite [J]. Fibers and Poly- mers ,2015,16( 1 ) : 146 - 152.
  • 10LIU Qi, LI Huihui, YAN Shouke. Structure and properties of 15-polypropylene reinforced by poly- propylene fiber and polyamide fiber [ J ] . Chinese Journal of Polymer Science,2014,32 (4) : 509 -518.

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