Thermogravimetric research into composites based on the mixtures of polypropylene and modified polyamide

Authors

DOI:

https://doi.org/10.15587/1729-4061.2017.108465

Keywords:

polypropylene, polyamide, montmorillonite, polyvinylpyrrolidone, mixture, nanocomposite, modification, recrystallization

Abstract

We established in the present work the regularities for obtaining homogeneous nanocomposites based on the mixture of PP/PA-6 with montmorillonite modified using PVP. In these nanocomposites, PA-6 and MMT contribute to the increase in thermal resistance of the material, while PVP improves compatibility between polar PA-6 and hydrophobic PP.

The goal of the present work was to investigate by applying the methods of thermogravimetric analysis a correlation between thermal characteristics of the newly-created nanocomposites based on the mixture of PE/PA-6 with montmorillonite, modified using PVP, and to determine the optimal composition of a nanocomposite with enhanced thermal resistance and a wide temperature interval of the viscous-fluid state.

On the basis of experimental data, it was found that the mixtures of polypropylene with polyamide modified by the montmorillonite-polyvinylpyrrolidone mixture are distinguished by the higher thermal resistance compared with the starting PP. It is established that at a content of the modified polyamide in the mixtures with polypropylene within 30 % by weight, samples of the composite are characterized by the highest thermal resistance ‒ weight loss of such composites in a temperature range of 218‒322 ºC is only 7.1 %, temperature of the onset of thermo-oxidation destruction is 300 ºC. It is shown that the developed nanocomposites have wider temperature intervals of the viscous-fluid state – 126–300 ºC. This makes it possible, by changing the modes of processing, to influence the structure and properties of products, especially taking into account the difference in crystallization of the material depending on the conditions and the method of processing. It is established that the most suitable for application and processing is the mixture of polypropylene with modified polyamide in the ratio 70:30 % by weight, respectively

Author Biographies

Volodymyr Krasinskyi, Lviv Politechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

PhD, Associate Professor

Department of Chemical Technology and Plastics Processing

Viktoria Kochubei, Lviv Politechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

PhD, Associate Professor

Department of Physical and Colloid Chemistry

Yurii Klym, Lviv Politechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

Department of Chemical Technology and Plastics Processing

Oleh Suberlyak, Lviv Politechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

Doctor of Chemical Sciences, Professor, Head of Department

Department of Chemical Technology and Plastics Processing

References

  1. En-guang, Z. (2009). Effect of a high molecular weight dispersant on the properties of the montmorillonite/polypropylene composite material. Journal of the Daqing Petroleum Institute, 1, 56–59.
  2. Ahmad, M. B., Hoidy, W. H., Ibrahim, N. A. B., Al-Mulla, E. A. J. (2009). Modification of montmorillonite by new surfactants. J. Eng. Appl. Sci., 4 (3), 184–188.
  3. Kiliaris, P., Papaspyrides, C. D. (2010). Polymer/layered silicate (clay) nanocomposites: An overview of flame retardancy. Progress in Polymer Science, 35 (7), 902–958. doi: 10.1016/j.progpolymsci.2010.03.001
  4. Kovalevski, V. V., Rozhkova, N. N., Zaidenberg, A. Z., Yermolin, A. N. (1994). Fullerene-like structures in shungite and their physical properties. Mol. Mat., 4, 77–80.
  5. Mucha, M. (2000). Crystallization of isotactic polypropylene containing carbon black as a filler. Polymer, 41 (11), 4137–4142. doi: 10.1016/s0032-3861(99)00706-5
  6. Zymankowska-Kumon, S. (2012). Assessment Criteria of Bentonite Binding Properties. Archives of Foundry Engineering, 12 (3), 139–142.
  7. Youssef, A. M., Malhat, F. M., Abdel Hakim, A. A., Dekany, I. (2017). Synthesis and utilization of poly (methylmethacrylate) nanocomposites based on modified montmorillonite. Arabian Journal of Chemistry, 10 (5), 631–642. doi: 10.1016/j.arabjc.2015.02.017
  8. Omurlu, C., Pham, H., Nguyen, Q. P. (2016). Interaction of surface-modified silica nanoparticles with clay minerals. Applied Nanoscience, 6 (8), 1167–1173. doi: 10.1007/s13204-016-0534-y
  9. Liang, M. R., Jiao, W. Y., Hui, H., Yi, Y. D. (2010). Research on Mechanical Properties and Crystallization Performance of PP/PA6/OMMT Composite. Plastics Science and Technology, 3, 65–69.
  10. Guowang, H., Xiangfang, P. (2008). Research Progress of Preparation and Properties of Organic Montmorillonite Filled Polypropylene/PA6 Nanocomposites. Plastics Science and Technology, 11, 94–97.
  11. Gnatowski, A., Suberlak, O., Postawa, P. (2006). Functional materials based on PA6/PVP blends. Journal of Achievements in Materials and Manufacturing Engineering, 18 (1-2), 91–94.
  12. Beatrice, C. A. G., Santos, C. R. dos, Branciforti, M. C., Bretas, R. E. S. (2012). Nanocomposites of polyamide 6/residual monomer with organic-modified montmorillonite and their nanofibers produced by electrospinning. Materials Research, 15 (4), 611–621. doi: 10.1590/s1516-14392012005000089
  13. Suberlyak, О. V., Krasins’kyi, V. V., Moravs’kyi, V. V., Gerlach, H., Jachowicz, T. (2014). Influence of Aluminosilicate Filler on the Physicomechanical Properties of Polypropylene-Polycaproamide Composites. Materials Science, 50 (2), 296–302. doi: 10.1007/s11003-014-9721-8
  14. Tesarikova, A., Merinska, D., Kalous, J., Svoboda, P. (2016). Ethylene-Octene Copolymers/Organoclay Nanocomposites: Preparation and Properties. Journal of Nanomaterials, 2016, 1–13. doi: 10.1155/2016/6014064
  15. Dulebova, L., Garbacz, T., Krasinskyi, V., Duleba, B. (2015). The Influence of Modifying HDPE on Properties of the Surface. Materials Science Forum, 818, 101–104. doi: 10.4028/www.scientific.net/msf.818.101
  16. Chang, D., Li-hui, L., Jing, X., Kai-zhi, S. (2006). Effect of Low Frequency Vibration on Property of PP/MMT Blends. Polymer Materials Science & Engineering, 5, 178–181.
  17. Ji-Sheng, M., Shi-Min, Z., Zong-Neng, Q., You-Liang, H., Shu-Fan, Z. (2002). Microstructure and Morphology of PolypropyIene/Clay Nanocomposites Synthesized via Intercalative Polymerization. Chemical Journal of Chinese Universities, 4, 734–738.
  18. Zhou, L., Zhao, Y., Yang, M., Wang, D., Xu, D. (2010). Investigation on Photooxidative Degradation of Polypropylene/Organomontmorillonite Nanocomposites. Spectroscopy and Spectral Analysis, 30 (1), 109–113.
  19. Huang, J. C., Zhu, Z. K., Ma, X. D., Qian, X. F., Yin, J. (2001). Preparation and properties of montmorillonite/organosoluble polyimide hybrid materials prepared by a one -step approach. Journal of Materials Science, 36, 871–877.
  20. Volkova, T. S., Isaev, A. Yu., Petrova, A. P. (2013). Osobennosti vliyaniya nanosilikatov na izmenenie svoystv razlichnyh polimernyh i kleyashchih sistem. Klei. Germetiki. Tekhnologyi, 1, 16–20.
  21. Krasinskyi, V., Suberlyak, O., Klym, Yu. (2016). Operational properties of nanocomposites based on polycaproamide and modified montmorillonite. Acta Mechanica Slovaca, 20 (1), 52–55.
  22. Krasinskyi, V. V., Kochubei, V. V., Klym, Yu. V., Haidos, I. (2015). Termohravimetrychni doslidzhennia polivinilpirolidonu, modyfikovanoho montmorylonitom. Visnyk NU “Lvivska politekhnika”, 812, 378–382.
  23. Suberlyak, O. V., Skorohoda, V. Y., Thir, I. G. (1989). Vliyanie kompleksoobrazovaniya na polimerizatsiyu 2-oksietilenmetakrilata v prisutstvyi polivinilpirrolidona. Vysokomolekulyarnye soedineniya, 31, 336–340.

Downloads

Published

2017-08-29

How to Cite

Krasinskyi, V., Kochubei, V., Klym, Y., & Suberlyak, O. (2017). Thermogravimetric research into composites based on the mixtures of polypropylene and modified polyamide. Eastern-European Journal of Enterprise Technologies, 4(12 (88), 44–50. https://doi.org/10.15587/1729-4061.2017.108465

Issue

Vol. 4 No. 12 (88) (2017): Materials Science

Section

Materials Science

License

Copyright (c) 2017 Volodymyr Krasinskyi, Viktoria Kochubei, Yurii Klym, Oleh Suberlyak

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.