The research aims to investigate the fiber orientation effect on the tensile and impact properties of zalacca midrib fiber /HDPE composites. The composites were produced by compression molding with pressing temperature at 150°C, pressing pressure at 50 bar, and holding time of 25 minutes. The fiber orientations applied in composites were 0°, 15°, 30°, 45°, 60°, 75°, and 90°, at 10% fiber volume fraction. The samples were evaluated by using: Tensile test and Izod impact test according to ASTM D638 and ASTM D5941, respectively. The result of experiments indicate that the orientation of zalacca midrib fiber influences the characteristics of HDPE composite-zalacca midrib fiber. The composite mechanical strength decline with the increase of orientation fibers from 0° to 90°. The composite failure mode of composites are observed by Scanning Electron Microscope (SEM).

Topics
Materials forming, Materials properties, Educational assessment
1.
Schwartz
,
M.M.
,
Composite Material Handbook
,
Mc Graw-Hill Book Co.
,
New York
, (
1984
)
Google Scholar
 
2.
Putra
,
Study on hdpe and ldpe plastic waste generasion with its reduction effort that can be implemented in sulolilo district surabaya
.
Faculty of Civil Engineering and Planology, Institut Teknologi Sepuluh Nopember Surabaya
, (
2015
)
Google Scholar
 
3.
S.
 
Mardhika
,
Journal of Mechanical Engineering
,
2
No.
1
,
29
–
36
(
2016
)
Google Scholar
 
4.
N.J.
 
Astuti
, “Preparation and characterization of polymeric tiles using asphalt and polypropylene with variation of composition and oriented pineapple fiber “.
Faculty of Math and Science
,
Universitas Sumatera Utara
, (
2012
).
Google Scholar
 
5.
A.E.
 
Purkuncoro
,
Journal of Imliah Cendekia Eksata
(
2017
).
Google Scholar
 
6.
A.N.
 
David
 and
R. E.
 
Robertson
,
Journal of Applied Polymer Science
.
90
,
2740
–
2751
(
2003
)
https://doi.org/10.1002/app.12913
Google Scholar
Crossref
Search ADS
 
7.
F. H.
 
De Oliveira
,
A. L.
 
Helfer
, and
S. C.
 
Amico
,
Macromol. Symp
,
319
,
83–92
(
2012
)
Google Scholar
 
8.
J. H. S.
 
Almeida
,
C. C.
 
Angrizani
,
E. C.
 
Botelho
, and
S. C.
 
Amico
,
Mater
(
2015
).
Google Scholar
 
9.
I. C.
 
Ezema
,
A. R. R.
 
Menon
,
C. S.
 
Obayi
, and
A. D.
 
Omah
,
J. Miner. Mater. Charact. Eng
.
2
,
216
–
222
(
2014
).
Google Scholar
 
10.
R.B.
 
Cheikh
,
A.
 
Michel
, and
S.
 
Billington
.
POLYM. COMPOS
. (
2014
)
Google Scholar
 
11.
M. R.
 
Hossain
,
M. A.
 
Islam
,
A. V.
 
Vuurea
, and
I.
 
Verpoest
,
Jurnal of scientific Research
.
5
(
1
),
43
–
54
(
2013
).
Google Scholar
Crossref
Search ADS
 
12.
T.-H.
 
Bruce Nguyen
,
S. M.
 
Jeng
, and
J.-M.
 
Yang
,
Materials Science and Engineering
,
183
(
1994
).
Google Scholar
 
This content is only available via PDF.
© 2018 Author(s).
2018
Author(s)