The present work studies the dependence of mechanical properties of kenaf fibre (KF) reinforced acrylic based polyester composites on the processing parameters. Prior to moulding, non-woven kenaf fibre (NWKF) with areal density of 1200 g/m2 was impregnated by acrylic based polyester resin using an impregnation line followed by a post-drying step. The flexural properties of the composites were investigated with respect to changes in impregnation and moulding conditions based on Design of Experiment (DOE) of Response Surface Methodology (RSM). RSM through Central Composite Design (CCD) was applied to develop a model of flexural properties with respect to the combination of processing variables. The mathematical regression models of the flexural properties were derived from the analysis of variance (ANOVA) to determine the model significance. All processing variables in linear terms exhibit significant effect on the flexural strength of the composites. Optimisation of the independent variables to maximise the flexural properties was estimated and verified.

1.
K.
Liang
,
Q.
Gao
, and
S. Q.
Shi
,
Journal of Applied Polymer Science
128
,
1213
(
2013
).
2.
M.
Khalfallah
,
B.
Abbès
,
F.
Abbès
,
Y.Q.
Guo
,
V.
Marcel
,
a.
Duval
,
F.
Vanfleteren
, and
F.
Rousseau
,
Materials & Design
64
,
116
(
2014
).
3.
M.S.
Salim
,
Z.A.M.
Ishak
, and
S. Abdul
Hamid
,
Key Engineering Materials
471-472
,
987
(
2011
).
4.
L.
Medina
,
R.
Schledjewski
, and
A. K.
Schlarb
,
Special Issue on the 12th European Conference on Composite Materials
,
ECCM 2006
69
,
1404
(
2008
).
5.
M.
Islam
and
M.
Miao
,
Journal of Composite Materials
48
,
3281
(
2013
).
6.
B. P.
Chang
,
H. M.
Akil
,
M. G.
Affendy
,
A.
Khan
, and
R. B. M.
Nasir
,
Materials & Design
63
,
805
(
2014
).
7.
S.
Bangphan
,
P.
Bangphan
, and
T.
Boonkang
,
Proceedings of World Academy of Science, Engineering and Technology
7
,
514
(
2013
).
8.
N. N.
Aimi
,
H.
Anuar
,
M. R.
Manshor
,
W. B. W.
Nazri
, and
S. M.
Sapuan
,
Industrial Crops and Products
54
,
291
(
2014
).
9.
A.
Mahfoudhi
,
N.
Baaka
,
W.
Haddar
,
M.F.
Mhenni
, and
Z.
Mighri
,
Fibers and Polymers
16
,
1487
(
2015
).
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