Non porous films in the beta phase of poly vinylidene fluoride oriented process for the obtaining and their uses.

摘要

The invenu00c7u00c3o refers to a new film of phase B of poly vinylidene fluoride (PVDF) oriented uniaxialmente and biaxially and process for obtaining the orientation of the crystalline phase of the polu00cdmero when it is subjected to a deformau00c7u00c3o, in one or more direcu00c7u00d5es, at a temperature equal to the U more than 70 u00ba C, preferably of 90 u00b0 C.The combined action of compression force and temperature eliminates the porosity of phase B of PVDF, allowing the obtaining of material 100% in stage B of PVDF, the crystalline phase is due to the application of stretch oriented by action of a mechanical force.As a result, there is an improvement in mechanical properties such as young's module, voltage security and rupture, deformau00c7u00c3o transactions and rupture, plant, as in dielu00c9ctrica, breakup and electromecu00c2nicas electrical coupling, as electromecu00c2nico, coefi Aware piezoelu00c9ctricos and, consequently, the use of the material in technological applications.