Charge depth of corona electrets based on polylactic acid was studied. Model of homo- and heterocharge distribution in the polymer was offered according to the observed electret behavior. Three different levels are specified in bulk of the polymer. At the first level dipole polarization that occurs due to surface oxidation dominates. At the second level injected charge carriers prevail. at the third level there is no injected charge carriers. For polylactic acid film first level thickness is up to 10 μm, for the second one it is up to 20 μm.
короноэлектрет, полилактид, глубина залегания заряда, corona electrets, polylactic acid, charge depth
1. Fomin V.A., Guzeev V.V. Biorazlagaemye polimery, sostoyanie i perspektivy ispol'zovaniya. // Plast. massy, 2001, № 2, S. 42-46.
2. Galihanov M.F., Borisova A.N., Deberdeev R.Ya., Krynickaya A.Yu. Aktivnaya upakovka dlya masla // Pischevaya promyshlennost', 2005, № 7, S. 18-19
3. Galihanov M.F., Zagrutdinova A.K., Astrahanceva M.N., Deberdeev R.Ya., Muslimova A.A. Elektretnye svoystva kompoziciy polipropilena s krahmalom //Materialovedenie, 2010, № 1, S. 60-63.
4. Gorohovatskiy Yu.A., Burda V.V., Karulina E.A., Karulina O.A. Perspektivnyy upakovochnyy material na osnove kompozitnyh polimernyh plenok s binarnym napolnitelem //Nauchnoe mnenie, 2013, № 3, S. 212-217.
5. Muslimova A.A., Viraneva A. P., Yovcheva T.A., Galihanov M.F. Izuchenie elektretnyh svoystv koronoelektretov na osnove polilaktida // Vestnik Kazanskogo tehnologicheskogo universiteta, 2012, T. 15, № 10, S. 128-130.
6. Guzhova A.A., Temnov D.E., Galihanov M.F., Gorohovatskiy Yu.A. // Vestnik Kazanskogo tehnologicheskogo universiteta, 2013, T. 16, № 3, S. 73-75.
7. Borisova M.E., Koykov S.N. Elektretnyy effekt v dielektrikah //Izv. VUZov. Ser. Fizika, 1979, № 1, S. 74-89.
8. Elektrety / Pod red. Sesslera G. M.: Mir, 1983. 487 s.
9. Luscheykin G.A. Metody issledovaniya elektricheskih svoystv polimerov. M.: Himiya, 1988. 160 s.
10. Drachev A.I., Gil'man A.B., Zhukov A.A., Kuznecov A.A. Ocenka glubiny raspredeleniya zaryada, inzhektirovannogo iz plazmy razryada postoyannogo toka v tonkie plenki poliimida i // Himiya vysokih energiy, 2004, T. 38, № 5, S. 387-390.
11. Galihanov M.F., Garipov R.M., Kozlov A.A., Deberdeev R.Ya. Ocenka raspredeleniya zaryada v polimernom koronoelektrete // Materialovedenie, 2010, № 11, S. 13-17.
12. Zheltuhina E.A., Galihanov M.F., Miftahova E.R., Debereev R.Ya. Issledovanie vzaimosvyazi glubiny proniknoveniya zaryada s velichinoy polyarizacii polimernyh materialov // Vestnik Kazanskogo tehnologicheskogo universiteta, 2012, T. 15, № 15, S. 180-183
