摘要:
Present invention provides a film 40 and an article 60 including the film 40. The film 40 includes first layer 42, second layer 44 and third layer 46. The first layer 42 includes a polymer dielectric material. The second layer 44 is disposed on at least one surface 48, 50 of the first layer 42 and includes inorganic oxide dielectric material. The third layer 46 is disposed on the first 42 or second 44 layer and includes a nitride or oxynitride material.
摘要:
A cyanoresin polymer is described, wherein about 10 percent to about 60 percent of the side chains on the polymer include a cyano group; and substantially all of the remaining polymer side chains include a hydroxyl group. A method of forming such a cyanoresin polymer is described. A capacitor having a dielectric film including such a cyanoresin polymer is also presented.
摘要:
A film capacitor (10) including a pair of electrodes (12) having multiple pores (14) is provided. The film capacitor (10) includes a polymer film (20) deposited upon each of the pair of electrodes (12) to form a dielectric layer.
摘要:
A method for manufacturing an ultra-thin polymeric film is disclosed. The method includes the steps of melt blending of a polymeric composition or a nanocomposite composition in an extruder. Next, the molten composition is conveyed through a flat die with a small die lip gap. A melt pump may also be used to provide a constant, non-pulsating flow of the melted composition through the die. The melted composition may be passed through a filtration device to remove contaminants that could adversely affect the dielectric performance of the film. Next, the film is stretched by passing the film through take-up rollers at relatively high take-up speeds. Then, the composition is cooled to form a film or sheet. The edges of the film may be trimmed, and the film wound up on a roll using a tension-controlled winding mechanism. A heated roll may be used to temper/anneal the film, thereby eliminating frozen-in internal stresses.
摘要:
A capacitor (10) comprises a substrate layer (14), a first electrode layer (12) disposed on the substrate layer (14), and a first dielectric layer (16) disposed on the electrode layer (12). The dielectric layer (16) comprises a polymeric material having an elongation less than or equal to about 5 percent.
摘要:
One embodiment of this invention is directed to an electronic article (10), formed in part from a polyetherimide resin having a repeating unit of formula I:
Another embodiment describes a capacitor (10) which includes a dielectric film (12) formed from such a polyetherimide resin. The capacitor (10) further includes at least one electrode (16) attached to a first surface of the dielectric film (12).
摘要:
A smart capacitor (50) includes a main capacitor (30) having at least one intelligence mechanism (40,42,44) selected from a prognostics mechanism and a high speed protection mechanism integrated within the main capacitor (30). The at least one intelligence mechanism (40,42,44) and the main capacitor (30) are together configured to generate at least one type of output signal selected from long term induced failure mechanism signals and sudden capacitor failure condition signals in response to desired input signals.
摘要:
An article having a cyanoresin dielectric film is described. The cyanoresin dielectric film includes nanostructures of a toughening material. A method of forming such a cyanoresin dielectric film is also described. A capacitor having a cyanoresin dielectric film is presented.
摘要:
A composition comprises a modified polymeric material and a ceramic antiferroelectric particle. The modified polymeric material comprises a thermoplastic polymer or thermosetting polymer; and a second polymer. The composition has a permittivity greater than or equal to 10. A method of making a composition comprises combining a thermoplastic polymer or thermosetting polymer with a second polymer to form a modified polymeric material; and combining the modified polymeric material with anti ferroelectric particles to form a composite composition; wherein the composition has a permittivity greater than or equal to about 10.