Preparation Process of Long Fiber Reinforced Impact Polypropylene Copolymer Composites


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Composites of continuous glass fiber reinforced impact polypropylene copolymer (IPC) were prepared by using a cross-head impregnation mold by a self-designed die fixed on a single screw extruder, and were chopped into Long fiber/IPC pellets approximately 12 mm in length. The effect of preheat temperature and pulling speed on the mechanical properties of the composites were studied and micrographs of fracture surface of impact specimens for the composites were investigated by scanning electron microscope (SEM). Mechanical properties of the composites were best at 200 °C of the preheated temperature, for the better interfacial adhesion between glass and matrix resin, and that proved by the SEM. Meanwhile, mechanical properties of the composites decreasing with the increasing of pulling speed, for the impregnation effect degraded.



Edited by:

Abdel Hamid Ismail Mourad and József Kázmér Tar




L. P. Li et al., "Preparation Process of Long Fiber Reinforced Impact Polypropylene Copolymer Composites", Applied Mechanics and Materials, Vol. 527, pp. 17-20, 2014

Online since:

February 2014




* - Corresponding Author

[1] A.G. Gibson, M.E. Otheguy, T.N.A. Browne, S. Feih, and A. P. Mouritz, High temperature and fire behavior of continuous glass fiber/polypropylene laminates, J. Compos. Part. A.: appl. s. 41 (2010) 1219-1231.


[2] S.D. Bartus and U.K. Vaidya, Performance of long fiber reinforced thermoplastics subjected to transverse intermediate velocity blunt object impact, J. Compos. Struct. 67 (2005) 263-277.


[3] K.S. Kumar, A.K. Ghosh and N. Bhatnagar, Mechanical properties of injection molded long fiber polypropylene composites, part 1: tensile and flexural properties, J. Polym. Composite. 28 (2007) 259-266.


[4] J.L. Thomason, The influence of fiber length and concentration on the properties of glass fiber reinforced polypropylene: 7. Interface strength and fiber strain in injection moulded long fiber PP at high fiber content, J. Compos. Part. A.: appl. s. 38 (2007).


[5] O. Gullua, Experimental investigation of the effect of glass fibres on the mechanical properties of polypropylene (PP) and polyamide 6 (PA6) plastic, J. Mater. Design. 27 (2006) 32-36.

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