The results of investigation of samples of low density polyethylene films with binary filler (aerosil and starch) by methods of thermally stimulated potential relaxation and thermally stimulated depolarization are discussed. It is noted that with increasing concentration of aerosil a low-temperature portion of potential decay is observed, which reduces the stability of the electret state in polyethylene films and the efficiency of their use as active biodegradable packaging materials. The present research is an attempt to explain the nature and the possible ways to remove the observed low-temperature instability of the electret state in the composite films with binary filler.
композиционные полимерные пленки, электретные свойства, полиэтилен, аэросил, крахмал, composite polymer films, electret state, polyethylene, aerosil, starc
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