COMPARISON OF RHEOLOGICAL AND MECHANICAL PROPERTIES OF MODIFIED POLYPROPYLENE – SHORT GLASS FIBER COMPOSITES

S. Shahid, A. Ali, M. N. Khan, M. B. Khan

Abstract


Short glass fiber (SGF) reinforced composite materials were principally fabricated using polypropylene (PP) as thermoplastic matrix. Short glass fiber and polypropylene frequently suffer from lack of adequate fiber-matrix adhesion. This problem was addressed by grafting polypropylene (PP) with maleic anhydride (MA) in the presence of benzyl peroxide (BPO) as an initiator. The results revealed that by increasing fiber contents from 5 to 40 %, tensile strength increases while elongation at break decreases. Rheological behavior was found to be pseudoplastic, whereas viscosity increases by increasing SGF contents. A decrease in die swell was observed with increase in SGF contents.

Full Text:

PDF

References


J. Jancar and A. T. Dibenedetto, Journal of

Material Science, Springer link 30, No.6

(1995) 1601.

V. Wigotsky, Plastics Engineering 57, No. 9

(2001) 28.

D.M. Laura, H. Keskkula, J.W. Barlow and

D.R. Paul, Polymer, Elsevier 41, No.19

(2000) 7165.

Weizhi Wang, Longxiang Tang and Baojun

Qu, Journal Science Direct 39, No. 11 (2003)

M. N. Bureau and J. Denault, Composites,

Elsevier 64, No. 12 (2004) 1785.

E. Ségard, S. Benmedakhene, A. Laksimi

and D. Lai, Elsevier 60, No. 1 (2003) 67.

Fu S.Y.B.Lauke, E.Mader, Yue and C.Y, Hux,

Applied Science and Manufacturing, Elsevier

, No. 10 (2000) 1117.

M. Sepher, G. Ausias and P.J. Carreau,

Journal of Non-Newtonian Fluid Mechanics,

Elsevier 123, No. 1 (2004) 19.

A. M. Henderson and A. Rudin, Journal of

Applied Polymer Science 31, No. 2 (1986)

F.N. Cogswell, Polymer Melt Rheology,

George Godwin, London (1981).

N. Sombatsompop and N.T. Intawong,

Polymer Testing 24, No. 8 (2005) 948.

T. Nishimura and T. Kataoka, Rheologica

Acta 23 No. 4 (1984) 401.

N. Muksing, M. Nithitanakul, B.P. Grady and

R. Magaraphan, Polymer Testing 27, No. 4

(2008) 470.

A.V. Shenoy and D.R.Saini, Thermoplastic

Melt Rheology and Processing, Marcel

Dekker, Inc. (1996) p. 100-130.

G.S Joseph, S.R. Thomas and K.T.

Varughese, Polymer, Elsevier 36, No. 23

(1995) 4405.


Refbacks

  • There are currently no refbacks.