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Investigation into Layer Number Effect on Breakdown Strength of Multi-Layer Polymer Films.
- Source :
-
Polymers (20734360) . May2022, Vol. 14 Issue 9, p1653-1653. 10p. - Publication Year :
- 2022
-
Abstract
- The layer number effect on electric breakdown strength (EBD) of multi-layer polymer films is investigated using 10-μm polypropylene (PP) films under a dc condition. The layer number, n, of the films during the test is as large as 120. It is observed that the relation between EBD and n conforms to a minus power law, i.e., EBD(n) = E1′n−a, where the power exponent, a, is 0.27, E1′ is a constant. By reviewing the experimental data in references, it is found that the power law holds true for different types of polymers in different test conditions, but the value of a varies from 0.072 to 0.5. The variation of a is explained in perspective of the discontinuous structures within films and those between films. A small value of a means a good purity level of the film, which is due to the decrease of the size of the inter-layer defects. A large value of a means a poor purity level of the films, which is due to the increase of the amount of intra-layer defects. Both factors influence the value of a, leading to the variation of a. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POLYMER films
*ELECTRIC breakdown
*POLYMER testing
Subjects
Details
- Language :
- English
- ISSN :
- 20734360
- Volume :
- 14
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Polymers (20734360)
- Publication Type :
- Academic Journal
- Accession number :
- 156874647
- Full Text :
- https://doi.org/10.3390/polym14091653