The Influence of Conditions of Secondary Propylene Recycling in the Presence of Vegetable Fillers on Thermal Properties of Polymer Composites

  • Authors

    • Andrei Borisovich Glazyrin
    • Marina Viktorovna Bazunova
    • Vadim Petrovich Zakharov
    • Elena Mikhailovna Zakharova
    2018-12-03
    https://doi.org/10.14419/ijet.v7i4.38.27655
  • secondary polypropylene, vegetable fillers, extrusion, die casting, crystallinity, thermogravimetric analysis, differential scanning calorimetry.

  • Abstract

    This article discusses the influence of conditions of secondary polypropylene recycling in the presence of vegetable fillers on thermal properties of polymer composites. Secondary polypropylene was recycled by the following methods: extrusion using two-screw extruder, agitation in mixing chamber of laboratory station (plastograph), die casting. Polymer composites on the basis of secondary polypropylene in the presence of vegetable fillers (wood dust, rice hulls, buckwheat hulls, and chaff) were produced by extrusion. Thermal properties of polymer composites were determined by thermogravimetric analysis and differential scanning calorimetry. It is established that recycling of secondary polypropylene by various methods does not change melting and crystallization points of polymer phase but is accompanied with decrease in melting enthalpy (by 9-11%) and crystallinity (by 5.6-6.5 %). The polypropylene samples obtained by recycling are characterized by lower thermal stability in air in comparison with initial polypropylene. Addition of vegetable filler to polymer composite on the basis of secondary polypropylene significantly decreases (by 1.13-1.48 times) melting enthalpy and crystallization of polymer phase. The compounds are characterized by relatively high thermal stability: their initial destruction points are close to parameters of initial polymer.

     

     

  • References

    1. [1] Filonov, A.N., Maksimova, N.V., Knyr', I.N., and Maier, E.A. (2004). Sostoyanie i vozmozhnosti razvitiya rossiiskogo rynka tkanykh upakovochnykh materialov iz polipropilenovoi plyonochnoi niti [State and possibilities of growth of Russian market of woven packing materials on the basis of polypropylene tape yarn]. Plasticheskie massy, 5, 30-34.

      [2] Bazunova, M.V., and Prochukhan, Yu.A. (2008). Sposoby utilizatsii otkhodov polimerov [Recycling of polymer wastes]. Vestnik Bashkirskogo universiteta, 13(4), 142-156.

      [3] Mastalygina, E.E., Kolesnikova, N.N., and Popov, A.A. (2015). Faktory, opredelyayushchie biorazlagaemost' kompozitsii na osnove poliolefinov i tsellyulozosoderzhashchikh napolnitelei [Factors determining biodecomposition of materials based on polyolefin and cellulose containing fillers]. Perspektivnye materialy, 9, 39-52.

      [4] Musorin, A.G. (2017). Innovatsii v oblasti pererabotki vtorichnogo polipropilena [Innovations in the field of secondary propylene recycling]. Online scientific journal Kontsept, 14, 188-191.

      [5] Bazunova, M.V., Fakhretdinov, R.K., Galiev, L.R., Shurshina, A.S., Sadritdinov, A.R., Kulish, E.I., and Zakharov, V.P. (2018). Vliyanie biodestruktsii na deformatsionno-prochnostnye svoistva polimernykh kompozitov na osnove vtorichnogo polipropilena i prirodnykh komponentov rastitel'nogo proiskhozhdeniya [The influence of biodestruction on deformation and strength properties of composites based on secondary polypropylene and natural vegetable components]. Perspektivnye materialy, 5, 50-58.

      [6] Lipatov, Yu.S. (1991). Fiziko-khimicheskie osnovy napolneniya polimerov [Physicochemical backgrounds of polymer fillers]. Moscow, Russia: Khimiya.

      [7] Shlenskii, O.F., Krenttsel', E.B., and Musyaev I.Kh. (1999). Vliyanie stroeniya i molekulyarnoi podvizhnosti poliolefinov na ikh termicheskuyu stoikost' [The influence of structure and molecular mobility of polyolefin on its thermal stability]. Plasticheskie massy, 3, 12-18.

      [8] Fakhretdinov, R.K., Galiev, L.R., Mingazova, A.R., and Zakharov, V.P. (2017). Pererabotka polimernykh kompozitov na osnove vtorichnogo polipropilena metodom lit'ya pod davleniem [Recycling of polymer composites based on secondary polypropylene by die casting]. Konstruktsii iz kompozitsionnykh materialov, 3(147), 14-18.

      [9] Novichenok, L.N., and Shul'man, Z.P. (1971). Teplofizicheskie svoistva polimerov [Thermal physical properties of polymers]. Minsk, USSR: Nauka i tekhnika.

      [10] Teryaeva, T.N., Kas'yanovva, O.V., and Lopatkina, T.V. (2005). Teplofizicheskie svoistva plastmass na osnove polipropilena i okhry [Thermal physical properties of plastics based on polypropylene and ochre]. Vestnik kuzbasskogo gosudarstvennogo tekhnicheskogo universiteta, 4(1), 69-73.

  • Downloads

  • How to Cite

    Borisovich Glazyrin, A., Viktorovna Bazunova, M., Petrovich Zakharov, V., & Mikhailovna Zakharova, E. (2018). The Influence of Conditions of Secondary Propylene Recycling in the Presence of Vegetable Fillers on Thermal Properties of Polymer Composites. International Journal of Engineering & Technology, 7(4.38), 1122-1124. https://doi.org/10.14419/ijet.v7i4.38.27655

    Received date: 2019-02-20

    Accepted date: 2019-02-20

    Published date: 2018-12-03