The use of artificial fiber reinforced composites are widely used in many applications such as automobile, aircraft manufacturing because they are cost effective and offers high strength, and weight ratio compared to other composites with similar applications. In this work, epoxy was selected as a matrix material to prepare a composite specimens reinforced with UHMWPE fabric with varying layers. Composite specimens are prepared by varying the number of fabric layers and Taguchi’s L9 orthogonal array method is used to study the Tribological behavior. The test specimen of composite material had been prepared using hand layup technique and the samples were tested for wear properties using the equipment DUCOM made pin on disc experimental setup. The weight was measured before and after the experiment is conducted. The effects of the Tribological operating parameters applied load, sliding velocity and sliding distance on the frictional and wear performance of UHMWPE fabric reinforced composites are demonstrated. Moreover, water absorption tests were conducted to know their effect over a period of time for both the aerial densities 200gsm and 240gsm of the fiber mats. It was observed that the wear response of the specimens is influenced by the applied load, sliding distance and the speed

1. http://www.iaeme.com/IJMET/index.asp 543 editor@iaeme.com
International Journal of Mechanical Engineering and Technology (IJMET)
Volume 10, Issue 01, January 2019, pp. 543–549, Article ID: IJMET_10_01_056
Available online at http://www.iaeme.com/ijmet/issues.asp?JType=IJMET&VType=10&IType=01
ISSN Print: 0976-6340 and ISSN Online: 0976-6359
© IAEME Publication Scopus Indexed
EFFECT OF PROCESS PARAMETERS ON WEAR BEHAVIOR AND
WATER ABSORPTION OF UHMWPE FABRIC REINFORCED EPOXY
COMPOSITES
P.RajendraPrasad*
Research Scholar, School of Mechanical Engineering, Reva University, Bangalore, INDIA.
Assistant Professor, Department of Mechanical Engineering, G.Pulla Reddy Engineering
College, Kurnool, INDIA,
J.N.Prakash
Research Supervisor, 3
School of Mechanical Engineering, Reva University, Bangalore, INDIA
L.H.Manjunath
School of Mechanical Engineering, Reva University, Bangalore, INDIA.
*Corresponding author
ABSTRACT
The use of artificial fiber reinforced composites are widely used in many applications
such as automobile, aircraft manufacturing because they are cost effective and offers high
strength, and weight ratio compared to other composites with similar applications. In this
work, epoxy was selected as a matrix material to prepare a composite specimens
reinforced with UHMWPE fabric with varying layers. Composite specimens are prepared
by varying the number of fabric layers and Taguchi’s L9 orthogonal array method is used
to study the Tribological behavior. The test specimen of composite material had been
prepared using hand layup technique and the samples were tested for wear properties
using the equipment DUCOM made pin on disc experimental setup. The weight was
measured before and after the experiment is conducted. The effects of the Tribological
operating parameters applied load, sliding velocity and sliding distance on the frictional
and wear performance of UHMWPE fabric reinforced composites are demonstrated.
Moreover, water absorption tests were conducted to know their effect over a period of
time for both the aerial densities 200gsm and 240gsm of the fiber mats. It was observed
that the wear response of the specimens is influenced by the applied load, sliding distance
and the speed.
Keywords: Woven fabric, textile composites, UHMWPE, orthogonal array, and Hand
lay-up.
Cite this Article: P.RajendraPrasad, J.N.Prakash and L.H.Manjunath, EFFECT OF
PROCESS PARAMETERS ON WEAR BEHAVIOR AND WATER ABSORPTION OF
UHMWPE FABRIC REINFORCED EPOXY COMPOSITES, International Journal of
Mechanical Engineering and Technology, 10(01), 2019, pp.543–549
http://www.iaeme.com/IJMET/issues.asp?JType=IJMET&VType=10&Type=01

2. P.RajendraPrasad, J.N.Prakash and L.H.Manjunath
http://www.iaeme.com/IJMET/index.asp 544 editor@iaeme.com
1. INTRODUCTION
From decades the customary metals or materials have been supplanted by Polymer matrix
composites (PMC) in view of simplicity of processing, productivity and low cost. Because of
their splendid formability, low specific weight, high stiffness to weight and high strength to
weight proportions the fiber-reinforced polymer (FRP) [1-3] composites are used in various fields
of Engineering and structural applications such as ship superstructures, marine, auto mobile,
machine parts, and the modern aerospace industries [3].
The Fiber-reinforced polymer (FRP) composites are made of two constituents i.e.
thermosetting or thermoplastic resins [11] as matrix material, and fiber or fabric as reinforcement
[2]. The fiber or fabric provides a load-bearing capacity while the resin contributes to transfer of
loads to the fiber. Resins also protect the fibers from environmental factors such as humidity,
high temperature, and chemical attack [2, 3]. The FRP composites possess desired Mechanical
properties like Tensile, Flexural and Impact strengths, and Tribological properties. The
Mechanical properties of FRP composites depend on the properties of the fiber and matrix
constituents, as well as the interface between the fiber and matrix [4]. The Thermosets (epoxies
& phenolics) and Thermoplastics are used as matrix, and Fiber glasses, Carbon fiber, Kevlar
(Aramid) fiber, and Ultra-high molecular weight polyethylene (UHMWPE) fiber are used as
reinforcement [3].
The UHMWPE fiber or high modulus fiber considered as third generation high-performance
fiber [5-9] after Kevlar and carbon fiber because of remarkable physical and mechanical
properties such as high specific weight, high modulus, high stiffness, high cut proof and abrasion
resistance, good UV resistance, water resistant, and non-chemical reactive [3,10]. Due to these
exceptional properties the UHMWPE fiber reinforced composites are extensively used in
aerospace, automobile [11], and sports utilities industries [3].
Ultra–high molecular weight polyethylene (UHMWPE) woven fabric reinforced polymer
(WFRP) composite laminates or textile composites are increasingly used in defense industries
and marine construction due to their exceptional properties like highest strength to weight ratio,
and outstanding features like environmental resistance and long life, these would be the better
replacement to traditional materials like metals and ceramics.
In this work UHMWPE fabric reinforced polymer composites were synthesized and wear and
friction properties of the specimens were investigated. The water absorption test also conducted
to investigate the water resistance in the composite specimens.
2. MATERIALS AND METHODS
2.1. Materials
The Epoxy resin (LAPOX L-12) of medium viscosity is used as matrix material, and a room
temperature curing polyamine hardener (K-6) both are supplied by ATUL Limited (Polymers
division), Gujarat, India. The properties of epoxy resin and hardener are given in table 1. The
Ultra-high molecular weight polyethylene (UHMWPE) fabric of 200 gsm and 240 gsm areal
densities are used as reinforcement material supplied by Huaheng High Performance Fiber
Textile Co. Ltd (China), the details of fabrics given in table 2.

3. EFFECT OF PROCESS PARAMETERS ON WEAR BEHAVIOR AND WATER ABSORPTION OF
UHMWPE FABRIC REINFORCED EPOXY COMPOSITES
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Table 1: Properties of Epoxy resin and Hardener
Typical values
Description
Epoxy
(L-12)
Hardener
(K-6)
Appearance
Clear viscous
liquid
Pale yellow
liquid
Density at 25 ºC
(g/cm3)
1.1-1.2 0.95-1.1
Viscosity
(mpa.s at 25ºC)
9000-12000 5-15
Epoxy
Equi. Wt (g/eq)
180-190 -
Table 2: Details of Fabric
Parameter UHMWPE Fabric
Areal density (gsm) 200 240
Weave Plain Plain
Fiber count (cm) 15.5X12 10X9
Yarn denier 600D 1000D
Thickness (mm) 0.42 0.48
2.2. Processing of composites
The composites are prepared as laminates with fixed dimensions of 160 x 160 x 3 mm3
. The
matrix is prepared by mixing epoxy (LAPOX L-12) and 10% hardener (K-6). Hardener is added
to the resin system shortly before use to initiate the polymerization reaction. A glass mould with
the aforementioned dimensions is placed and a layer of wax is coated over it which acts as
releasing agent. Resin is applied on top of the layer of fiber and it’s ensured that the fiber is
completely wet. Another layer of fiber is placed on top. These steps are repeated until the desired
thickness was obtained. Another plastic sheet is placed on top. Pressure is applied using weights
over the mould in order to ooze out the excess matrix and to apply load uniformly. These steps
were followed to make the three different layered composites.
The composite material reinforced with UHMWPE and epoxy matrix was analyzed for wear
with ASTM G99. Wear and Friction monitor- TR 201 (Pin on disc) wear apparatus is shown in
Figure.1 and its specifications are shown in Table.3.

4. P.RajendraPrasad, J.N.Prakash and L.H.Manjunath
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Figure.1 Wear and Friction test experimental set up with specimen
Table 3. Tribological test specification
Pin size 2mm - 10mm
Wear 2000 micrometer
Disc size 6mm X 100mm
Frictional Force 100N
3. RESULTS AND DISCUSSION
Wear and frictional force tests were performed as per Taguchi’s L9 orthogonal array. Taguchi’s
method is used when the numbers of inputs are too large to allow for exhaustive testing of every
possible input. Three layers of composites were processed and planned to study the wear
properties with varying parameters of Load (N), Speed (rpm) and Time (min) which was listed
in Table 4.
Table 4. Wear Test process conditions
S. No. Load (N) Speed (rpm) Time (Min)
1 10 500 5
2 10 600 10
3 10 700 15
4 20 500 10
5 20 600 15
6 20 700 5
7 30 500 15
8 30 600 5
9 30 700 10

5. EFFECT OF PROCESS PARAMETERS ON WEAR BEHAVIOR AND WATER ABSORPTION OF
UHMWPE FABRIC REINFORCED EPOXY COMPOSITES
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Table 5. Experimental design and its response on single layered composite specimen
S. No.
240 gsm weight loss (milligrams) 200 gsm weight loss (milligrams)
1 layer 2 layers 3 layers 1 layer 2 layers 3 layers
1 0.0863 0.0864 0.0862 0.0895 0.0897 0.0895
2 0.0892 0.0892 0.0891 0.0897 0.0892 0.0898
3 0.0941 0.0942 0.0943 0.0941 0.0942 0.0943
4 0.0895 0.0894 0.0896 0.0915 0.0914 0.0914
5 0.0995 0.0994 0.0995 0.0924 0.0924 0.0925
6 0.0877 0.0877 0.0874 0.0931 0.0936 0.0934
7 0.0917 0.0916 0.0915 0.0924 0.0928 0.0926
8 0.0899 0.0896 0.0894 0.0914 0.0915 0.0918
9 0.0914 0.0913 0.0912 0.0922 0.0924 0.0921
Wear tests were conducted on the composite specimens to tests the wear resistance of the
specimens using pin-on-disc test apparatus. A total of 54 tests were conducted to know the wear
behavior against the EN32 material. The weight loss obtained for all these samples with different
process parameters is very minute as shown in Table 5. Only one conclusion can be drawn from
the data that as the time of the contact increases, wear (weight loss) increases, that too only a
minute increment.
3.1. Water Absorption Tests
The effect of number of layers on the water absorption UHMWPE reinforced composites for both
the areal densities increased in immersion time is shown in Figure 2 & 3. It is evident from the
figures that the rate of moisture absorption increases with increase in number of layers. Another
effect of increasing water absorption rate of composites is the nature of UHMWPE fiber, voids
inside the composites lead to the formation of micro channels. After immersion time in water, the
presence of these micro voids and cracks in the composite surface results in the movement of
water molecules to the material by capillary action [12].
Figure.2 Effect of layers on water absorption with 240 gsm
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0 1 2 3 4 5 6 7 8
Waterabsorption(%)
Days
240 gsm 1 layer
240 gsm 2 layers
240 gsm 3 layers

6. P.RajendraPrasad, J.N.Prakash and L.H.Manjunath
http://www.iaeme.com/IJMET/index.asp 548 editor@iaeme.com
Figure.3 Effect of layers on water absorption with 200 gsm
4. CONCLUSIONS
Composite laminates are prepared for both areal densities of 200 gsm and 240 gsm UHMWPE
plane woven fabric reinforcement by varying the number of layers. A total of 3 laminates were
prepared for each areal density with 1, 2 and 3 layers of UHMWPE fabric. Both water absorption
and wear tests were conducted for all the six samples. Wear tests were performed by varying the
process parameters on pin-on-disc test apparatus and only a minute weight loss is observed for
all the samples, for 200 gsm the weight loss is little higher when compared to the 240 gsm fabrics
reinforced composite laminates. For water absorption 3 layered samples has more absorption than
the other two samples and 200 gsm samples has less water absorption capability than the 240 gsm
samples for all the layered samples.
REFERENCES
[1] Lin, S. P., Han, J. L., Yeh, J. T., Chang, F. C., & Hsieh, K. H. (2007). Surface modification
and physical properties of various UHMWPE-fiber-reinforced modified epoxy
composites. Journal of Applied Polymer Science, 104(1), 655-665. doi:10.1002/app.25735.
[2] Kang, Y., Oh, S., & Park, J. S. (2015). Properties of UHMWPE fabric reinforced epoxy
composite prepared by vacuum-assisted resin transfer molding. Fibers and Polymers, 16(6),
1343-1348. Doi: 10.1007/s12221-015-1343-8.
[3] P.RajendraPrasad, J.N.Prakash and L.H.Manjunath, Mechanical Properties of UHMWPE
Woven Fabric/Epoxy Composites Mechanical Engineering and Technology, 9(12), 2018, pp.
1070–1077.
[4] Jana, S., Hinderliter, B. R., & Zhong, W. H. (2008). Analytical study of tensile behaviors of
UHMWPE/nano-epoxy bundle composites. Journal of Materials Science, 43(12), 4236-4246.
doi:10.1007/s10853-008-2613-2
[5] Li, C., Jia, J., Wang, G., Zhang, R., & Li, X. (2016). A study on the tensile properties of
UHMWPE fiber weft-knitted structural composites. Journal of Reinforced Plastics and
Composites, 36(6), 435-442. doi:10.1177/0731684416682854
[6] Amanda L, Aaron M, Joannie W, et al. Long-term stability of UHMWPE fibers. Polym
Degrad Stab 2015; 114: 45–51.
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0 2 4 6 8
WaterAbsorption(%)
Days
200 gsm 1 layer
200 gsm 2 layers
200 gsm 3 layers

7. EFFECT OF PROCESS PARAMETERS ON WEAR BEHAVIOR AND WATER ABSORPTION OF
UHMWPE FABRIC REINFORCED EPOXY COMPOSITES
http://www.iaeme.com/IJMET/index.asp 549 editor@iaeme.com
[7] Xia L, Xi P and Cheng B. A comparative study of UHMWPE fibers prepared by flash-
spinning and gel-spinning. Mater Lett 2015; 147: 79–81.
[8] You X and Hu P. Structure of high strength organic synthetic fibers. J Textile Res 2010; 65:
146–151.
[9] Zhang Y, Wang Y, Huang Y, et al. Preparation and properties of three-dimensional braided
UHMWPE fiber reinforced PMMA composites. J Reinf Plastics Compos 2006; 25: 1601–
160.
[10] P.Rajendra Prasad, J.N.Prakash, & L.H.Manjunath. (2018). Mechanical Characterization of
Epoxy/Polyethylene Fiber-Reinforced Composites. International Journal of Mechanical and
Production Engineering Research and Development (IJMPERD),8(8), 271-276.
[11] Mohammadalipour, M., Masoomi, M., Ahmadi, M., & Kazemi, Z. (2018). The effect of
simultaneous fiber surface treatment and matrix modification on mechanical properties of
unidirectional ultra-high molecular weight polyethylene fiber/epoxy/nanoclay
nanocomposites. Journal of Composite Materials, 52(21), 2961-2972.
doi:10.1177/0021998318755542.
[12] Narendar, R., & Dasan, K. P. (2013). Effect of chemical treatment on the mechanical and
water absorption properties of coir pith/nylon/epoxy sandwich composites. International
Journal of polymer analysis and characterization, 18(5), 369-376.