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Research Papers: Friction and Wear

Optimization of High Stress Abrasive Wear of Polymer Blend Ethylene and Vinyl Acetate Copolymer/HDPE/MA-g-PE/OMMT Nanocomposites

[+] Author and Article Information
Rajeev Namdeo

Department of Mechanical Engineering,
Shri Vaishnav Polytechnic College,
M.O.G. Lines,
Indore 452002, India
e-mail: rrnamdeo@rediffmail.com

Sudhir Tiwari

Department of Mechanical Engineering,
Shri G.S. Institute of Technology and Science,
23, Visvesvaraya Road,
Indore 452003, India
e-mail: sudhir2609@gmail.com

Smita Manepatil

Department of Mechanical Engineering,
Shri G.S. Institute of Technology and Science,
23, Visvesvaraya Road,
Indore 452003, India
e-mail: smita_mp@rediffmail.com

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received March 23, 2016; final manuscript received September 7, 2016; published online January 27, 2017. Assoc. Editor: Zhong Min Jin.

J. Tribol 139(2), 021610 (Jan 27, 2017) (6 pages) Paper No: TRIB-16-1093; doi: 10.1115/1.4034696 History: Received March 23, 2016; Revised September 07, 2016

High stress (two-body) abrasive wear behavior of maleic anhydride grafted polyethylene (MA-g-PE) compatibilized ethylene and vinyl acetate copolymer (EVA)/high-density polyethylene (HDPE) polymer blend added with organophilic montmorillonite nanoclay in increasing quantity (0, 1, 2, 3, and 4 phr) has been evaluated in this study. Comparative volume losses and specific wear rates of polymer nanocomposites (PNCs) using two-body abrasion tester are discussed. Specific abrasive wear rate is optimized under different loads and sliding distances with different abrasive grade papers as per Taguchi L18 orthogonal array. Analysis of variance (ANOVA) is employed to determine the significance of factors influencing wear. Confirmation experiments are performed to predict and verify the improvement in observed values with the optimal combination level of control factors. It is observed that maximum wear volume loss and specific wear rate occur at 10 N load and 8 m sliding distance in all polymer nanocomposites. Scanning electron microscopy (SEM) images are used to analyze wear mechanisms under different experimental conditions.

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Figures

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Fig. 3

Main effect plots for S/N ratios

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Fig. 4

Interaction plots for S/N ratios for polymer nanocomposites

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Fig. 2

(a) Specific wear rate versus polymer nanocomposite for 5, 10, and 15 N at 8 m sliding distance with 50-grade abrasive paper and (b) specific wear rate versus polymer nanocomposite for 4, 8, and 12 m sliding distance at 10 N load with 50-grade abrasive paper

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Fig. 1

(a) Volume loss versus polymer nanocomposite for 5, 10, and 15 N at 8 m sliding distance with 50-grade abrasive paper and (b) volume loss versus polymer nanocomposite for 4, 8, and 12 m sliding distance at 10 N load with 50-grade abrasive paper

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Fig. 5

Scanning electron micrographs of polymer nanocomposites (a) PNC-1 at 10 N load, 8 m distance with 80 grade, (b) PNC-2 at 10 N load, 8 m distance, 120 grade, (c) PNC-3 at 10 N load, 12 m distance, 50 grade, and (d) PNC-4 at 10 N load, 4 m distance, 50 grade

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