Dependence of electrical breakdown on spherulite size in isotactic polypropylene

Autor:	Jerold M. Schultz, B. V. Ceres
Rok vydání:	1984
Předmět:	Condensed Matter::Materials Science Crystallinity Materials science Polymers and Plastics Spherulite Tacticity Materials Chemistry Electrical breakdown Isothermal crystallization Lamellar structure General Chemistry Composite material Surfaces Coatings and Films
Zdroj:	Journal of Applied Polymer Science. 29:4183-4197
ISSN:	1097-4628 0021-8995
Popis:	A self-seeding technique, coupled with isothermal crystallization, was used to prepare isotactic polypropylene specimens of varying spherulite size, but of constant crystallinity and lamellar thickness. The latter quantities were also varied by changing the isothermal crystallization temperature. The electrical lifetime at constant applied voltage, in a point-plane geometry, was measured. It was found that the electrical lifetime decreased with increasing spherulite size and, more weakly, with decreasing crystallinity (at a given spherulite size).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6a6f6e3a95b687fca00244a407e23b95 https://doi.org/10.1002/app.1984.070291248 Zobrazit plný text záznamu Plný text