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THE EFFECTS OF HIGH DENSITY POLYETHYLENE ADDITION TO LOW DENSITY POLYETHYLENE POLYMER ON MECHANICAL, IMPACT AND PHYSICAL PROPERTIES

Year 2020, Volume: 10 Issue: 1, 25 - 37, 01.06.2020
https://doi.org/10.36222/ejt.646693

Abstract

Polyethylene materials are the
most widely used polymers which we encountered everywhere in our daily life. Some
of the advantages of the polyethylenes are the diversity of production types,
corrosion resistance, electrical insulation and recyclability. The main
production methods are compression molding, transfer molding, rotational
molding, injection molding, gas-assisted injection molding, extrusion and blown
film extrusion techniques. It is possible to increase the mechanical properties
of low density polyethylene materials by addition of high density polyethylene
materials. Both polymer has same monomers but their chemical structure and
bonding properties are different. Their physical properties can change with
their chemical structure and bonding properties. In this study, 25%, 50% and
75% by weight of high density polyethylene were added to low density
polyethylene. Granules were pre-mixed with a mechanical mixer before production
of the samples. Plastic injection molding machine was used for specimen
preparation. Density, hardness, tensile test, three-point bend test, compression
test, tear test and Izod impact tests were performed. Densities and hardness
values of the polymer blends decrease by the increasing amount of low density
polyethylene. In general, it was observed that the mechanical properties of the
polymer blends increase as the high density polyethylene content increase.

Thanks

Author would like to thank both institutions for using Pamukkale University, Mechanical Engineering Laboratories and Karamanoğlu Mehmetbey University, Mechanical Engineering Laboratories. This study was oral presented proceeding in UMTK 2019 congress.

References

  • [1] Saçak, M., Polimer Kimyası (Polymer Chemistry), Gazi Kitabevi, Ankara, TR, 2008.
  • [2] Akkurt, S., Plastik Malzeme Bilimi Teknolojisi ve Kalıp Tasarımı (Plastic Material Science Technology and Mold Design), Birsen Yayınevi, İstanbul, TR, 2007.
  • [3] Akdoğan, E. and Yurtseven, R. (2016). The Effects of Ammonium Polyphosphate and Boron Containing Flame Retardants on Mechanical Properties of Thermoplastic Polyurethane Materials. 16th International Materials Symposium (IMSP'2016), Denizli, TR, 262-270.
  • [4] Taşdemir, M., Polimer Karışımları ve Uygulamaları (Polymer Blends and Applications), Seçkin Yayıncılık, Ankara, TR, 2016.
  • [5] Shebani, A., Klash, A., Elhabishi, R., Abdsalam, S., Elbreki, H. and Elhrari, W., (2018). The Influence of LDPE Content on the Mechanical Properties of HDPE/LDPE Blends, Research & Development in Material Science, 7(5), 1-7.
  • [6] Sarkhel, G., Banerjee, A. and Bhattacharya, P., (2006). Rheological and Mechanical Properties of LDPE/HDPE Blend, Polymer-Plastics Technology and Engineering, 45, 713-718.
  • [7] Cho, K., Lee, B.H., Hwang, K., Lee, H., and Choe, S., (1998). Rheological and Mechanical Properties in Polyethylene Blends, Polymer Engineering and Science, 38(12), 1969-1975.
  • [8] Li, D., Zhou, L., Wang, X., and Yang, X., (2019). Effect of Crystallinity of Polyethylene with Different Densities on Breakdown Strength and Conductance Property, Materials, 12(11), 1746-1758.
  • [9] Ren, Y., Shi, Y., Yao, X., Tang, Y., and Liu, L.Z., (2019). Different dependence of tear strength on film orientation of LLDPE made with different co-monomer. Polymers, 11(3), doi:10.3390/polym11030434.
  • [10] ASTM D256, Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics, ASTM International, West Conshohocken, PA, U.S.A., (2013).
  • [11] ASTM D618, Standard Practice for Conditioning Plastics for Testing, ASTM International, West Conshohocken, PA, U.S.A., (2013).
  • [12] ASTM D624, Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers, ASTM International, West Conshohocken, PA, U.S.A., (2012).
  • [13] ASTM D638, Standard Test Method for Tensile Properties of Plastics, ASTM International, West Conshohocken, PA, U.S.A., (2014).
  • [14] ASTM D790, Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials, ASTM International, West Conshohocken, PA, U.S.A., (2017).
  • [15] ASTM D792, Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement, ASTM International, West Conshohocken, PA, U.S.A., (2013).
  • [16] ASTM D2240, Standard Test Method for Rubber Property-Durometer Hardness, ASTM International, West Conshohocken, PA, U.S.A., (2015).
Year 2020, Volume: 10 Issue: 1, 25 - 37, 01.06.2020
https://doi.org/10.36222/ejt.646693

Abstract

References

  • [1] Saçak, M., Polimer Kimyası (Polymer Chemistry), Gazi Kitabevi, Ankara, TR, 2008.
  • [2] Akkurt, S., Plastik Malzeme Bilimi Teknolojisi ve Kalıp Tasarımı (Plastic Material Science Technology and Mold Design), Birsen Yayınevi, İstanbul, TR, 2007.
  • [3] Akdoğan, E. and Yurtseven, R. (2016). The Effects of Ammonium Polyphosphate and Boron Containing Flame Retardants on Mechanical Properties of Thermoplastic Polyurethane Materials. 16th International Materials Symposium (IMSP'2016), Denizli, TR, 262-270.
  • [4] Taşdemir, M., Polimer Karışımları ve Uygulamaları (Polymer Blends and Applications), Seçkin Yayıncılık, Ankara, TR, 2016.
  • [5] Shebani, A., Klash, A., Elhabishi, R., Abdsalam, S., Elbreki, H. and Elhrari, W., (2018). The Influence of LDPE Content on the Mechanical Properties of HDPE/LDPE Blends, Research & Development in Material Science, 7(5), 1-7.
  • [6] Sarkhel, G., Banerjee, A. and Bhattacharya, P., (2006). Rheological and Mechanical Properties of LDPE/HDPE Blend, Polymer-Plastics Technology and Engineering, 45, 713-718.
  • [7] Cho, K., Lee, B.H., Hwang, K., Lee, H., and Choe, S., (1998). Rheological and Mechanical Properties in Polyethylene Blends, Polymer Engineering and Science, 38(12), 1969-1975.
  • [8] Li, D., Zhou, L., Wang, X., and Yang, X., (2019). Effect of Crystallinity of Polyethylene with Different Densities on Breakdown Strength and Conductance Property, Materials, 12(11), 1746-1758.
  • [9] Ren, Y., Shi, Y., Yao, X., Tang, Y., and Liu, L.Z., (2019). Different dependence of tear strength on film orientation of LLDPE made with different co-monomer. Polymers, 11(3), doi:10.3390/polym11030434.
  • [10] ASTM D256, Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics, ASTM International, West Conshohocken, PA, U.S.A., (2013).
  • [11] ASTM D618, Standard Practice for Conditioning Plastics for Testing, ASTM International, West Conshohocken, PA, U.S.A., (2013).
  • [12] ASTM D624, Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers, ASTM International, West Conshohocken, PA, U.S.A., (2012).
  • [13] ASTM D638, Standard Test Method for Tensile Properties of Plastics, ASTM International, West Conshohocken, PA, U.S.A., (2014).
  • [14] ASTM D790, Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials, ASTM International, West Conshohocken, PA, U.S.A., (2017).
  • [15] ASTM D792, Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement, ASTM International, West Conshohocken, PA, U.S.A., (2013).
  • [16] ASTM D2240, Standard Test Method for Rubber Property-Durometer Hardness, ASTM International, West Conshohocken, PA, U.S.A., (2015).
There are 16 citations in total.

Details

Primary Language English
Subjects Mechanical Engineering
Journal Section Research Article
Authors

Erkin Akdoğan 0000-0001-6993-6972

Publication Date June 1, 2020
Published in Issue Year 2020 Volume: 10 Issue: 1

Cite

APA Akdoğan, E. (2020). THE EFFECTS OF HIGH DENSITY POLYETHYLENE ADDITION TO LOW DENSITY POLYETHYLENE POLYMER ON MECHANICAL, IMPACT AND PHYSICAL PROPERTIES. European Journal of Technique (EJT), 10(1), 25-37. https://doi.org/10.36222/ejt.646693

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