Studying properties of corona electret based on compositions of polylactic acid and bentonite




polylactic acid, bentonite, corona electret, fine filler, polymers


The study focuses on the composites of polylactic acid and bentonite as well as corona electrets based on them. The paper explores rheological, electrical, physical and mechanical properties of the composites as well as the effect of corona charging on their properties. Differential scanning calorimetry was used to assess transition temperatures in the compositions. Surface potential, electric field strength and effective surface charge density were measured. Optimal performance was shown by the compositions of polylactic acid with 4% bentonite.


Auras, R., Lim, L.‐T., Selke, S. E. M., Hideto, T. (eds.). (2010) Poly(lactic acid): Synthesis, structures, properties, processing, and applications. Hoboken: John Wiley & Sons Publ., 528 p. (In English)

Galikhanov, M. F., Borisova, A. N., Deberdeev, R. Ya. (2005) Changes in electret characteristics of polymeric formulations in their processing into articles. Russian Journal of Applied Chemistry, 78 (5), 820–823. (In English)

Galikhanov, M., Guzhova, A., Borisova, A. (2014) Effect of active packaging material on milk quality. Bulgarian Chemical Communication, 46 (Special Issue B), 142–145. (In English)

Galikhanov, E., Lounev, I., Guzhova, A. et al. (2016) Study of polylactic acid electret by dielectric spectroscop. AIP Conference Proceedings, 1722 (1), article 290002. (In English)

Gencheva, E. A., Yovcheva, T. A., Marudova, M. G. et al. (2010) Formation and investigation of corona charged films from polylactic acid. AIP Conference Proceedings, 1203 (1), 495–500. (In English)

Gilmutdinova, A. M., Galikhanov, M. F., Nazarov, N. G. et al. (2017) Increase of value and stability of electret characteristics of polylactide by magnesium oxide modification. AIP Conference Proceedings, 1886 (1), article 020092. (In English)

Gojayev, E. M., Ahmadova, K. R., Osmanova, S. S., Aman, S. Z. (2015) Investigation of surface structure and thermostimulated depolarization effect of composite materials with aluminum nano-particles. American Journal of Nano Research and Applications, 3 (5), 89–93. (In English)

Guzhova, A. A., Galikhanov, M. F., Gorokhovatsky, Yu. A. et al. (2016) Improvement of polylactic acid electret properties by addition of fine barium titanate. Journal of Electrostatics, 79, 1–6. elstat.2015.11.002 (In English)

Ismayilova, R. S., Kuliev, M. M. (2020) Features of the charge state of UHMWPE + α-SiO2 nanocomposites. Surface Engineering and Applied Electrochemistry, 56 (3), 267–271. (In English)

Kestelman, V. N., Pinchuk, L. S., Goldade, V. A. (2000) Electrets in engineering: Fundamentals and applications. Boston: Springer Publ., 281 p. (In English)

Kilic, A., Shim, E., Yeol Yeom, B., Pourdeyhimi, B., (2013) Improving electret properties of PP filaments with barium titanate. Journal of Electrostatics, 71 (1), 41–47. (In English)

Kurbanov, M. A., Ramazanova, I. S., Dadashev, Z. A. et al. (2018) On the electret effect in polymer–ferroelectric piezoceramic composites with various values of the electronegativity of the polymer matrix and piezophase cations. Semiconductors, 52 (1), 64–70. (In English)

Liu, F., Li, M., Shao, W. et al. (2019) Preparation of a polyurethane electret nanofiber membrane and its air-filtration performance. Journal of Colloid and Interface Science, 557, 318–327. (In English)

Sessler, G. H. (1998) Electrets. Vol. 1. Morgan Hill, CA: Laplacian Press, 472 p. (In English)

Temnov, D., Fomicheva, E., Tazenkov, B. et al. (2013) Electrets properties of polyethylene films with starch and aerosil. Journal of Materials Science and Engineering A, 3 (7), 494–498. (In English)

Zhang, J., Chen, G., Bhat, G. et al. (2020) Electret characteristics of melt-blown polylactic acid fabrics for air filtration application. Journal of Appied Polymer Science, 137 (4), article 48309. (In English)





Condensed Matter Physics