Influence of organic additives on electret state of high pressure polyethylene
| Autor: | Eldar Mekhraly Gojayev, Sevinc Sarkar Osmanova, Shujayat Aman Zeynalov, Farhad Shamil Karimov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science HPPE Phthalic-Anhydride Orthophenylenediamine Additive Thermostimulated depolarization Electret Properties Polymer Polyethylene chemistry.chemical_compound chemistry Chemical engineering Electrode Antistatic agent Charge carrier Surface charge Electret Polarization (electrochemistry) |
| DOI: | 10.5281/zenodo.4478304 |
| Popis: | The paper presents the results of a study of the electret properties ofhigh-pressure polyethylene (hppe)modified with organic additives asphthalic-anhydride (pha)andorthophenylenediamine (ophd). Samples obtained and processed by extrusion on an industrial unit brand LRP-700m. Additives were introduced into HPPE by mechanical mixing. For polarization, the samples were placed on a grounded electrode and charged with a negative corona at a voltage of 7 kv. After polarization, the total surface charge of the samples was determined by the compensation method. The thermally stimulated current was recorded in the temperature range 290–520 K, provided that the heating increased linearly at a rate of 3.5 k / min. It is shown that after polarization ofhppecomposites modified withphaandophdorganic fillers, the depolarization process begins in connection with the resolution and release of trapped charge carriers from traps. After the complete destruction of the homo charges, the density of the surface charge of thehppefilms and their optimal modification, reaching a certain value, in the future, depending on the duration of storage, does not change. It was also revealed that the introduction of the organic additivephaandophdintohppemakes it possible to obtain an antistatic polymer material with improved technological and electrical properties. |
| Databáze: | OpenAIRE |
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