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A capacitor and excellent technology, applied in the field of electronic components, can solve the problem of general temperature resistance of polyester base film, and achieve the effect of reducing the probability of air breakdown, ensuring adhesion stability, and simplifying the structure
Active Publication Date: 2017-03-29
ANHUI FEIDA ELECTRICAL TECH CO LTD
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Problems solved by technology
However, the temperature resistance of the polyester base film of most film capacitors is average at present, and further improvement is urgently needed
Method used
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Embodiment 1
[0023] A thin film for capacitors with excellent performance is made of the following materials in parts by weight:
[0024] 200 parts of modified polyethylene terephthalate, 25 parts of polyimide, 20 parts of modified diatomaceous earth, 10 parts of bisphenol A epoxy resin, 8 parts of nano silicon dioxide, 10 parts of nano boron fiber , 7 parts of dimethylformamide, 4 parts of triallyl cyanurate, 12 parts of polystyrene, 5 parts of diethylene glycol dimethyl ether, 3 parts of antioxidant, 3 parts of heat stabilizer, 3 parts UV absorber; the modified polyethylene terephthalate is made of the following parts by weight: 180 parts of polyethylene terephthalate, 8 parts of tetrahydrofuran, 7 parts of silane coupling agent, 16 parts of poly Propylene grafted maleic anhydride, 6 parts of thiourea resin, 5 parts of amino carboxylic acid resin, 5 parts of polymethyl methacrylate, 6 parts of sodium dodecylsulfonate; the modified diatomite consists of the following weight 120 parts dia...
Embodiment 2
[0035] A thin film for capacitors with excellent performance is made of the following materials in parts by weight:
[0036] 190 parts of modified polyethylene terephthalate, 23 parts of polyimide, 18 parts of modified diatomaceous earth, 8 parts of bisphenol A epoxy resin, 6 parts of nano-silica, 8 parts of nano-boron fiber , 6 parts of dimethylformamide, 3 parts of triallyl cyanurate, 10 parts of polystyrene, 4 parts of diethylene glycol dimethyl ether, 2 parts of antioxidant, 2 parts of heat stabilizer, 2 parts UV absorber; the modified polyethylene terephthalate is made of the following parts by weight: 170 parts of polyethylene terephthalate, 6 parts of tetrahydrofuran, 6 parts of silane coupling agent, 13 parts of poly Propylene grafted maleic anhydride, 5 parts of thiourea resin, 4 parts of amino carboxylic acid resin, 3 parts of polymethyl methacrylate, 5 parts of sodium dodecyl sulfonate; the modified diatomite consists of the following weight made of: 110 parts diat...
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Abstract
The invention discloses a capacitor thin film with high performance, and belongs to the technical field of electronic components. The capacitor thin film with high performance is specifically prepared from, modified polyethylene terephathalate, polyimide, modified diatomite, bisphenol-A epoxy resin, nanometer silicon dioxide, nanometer boron fiber, dimethyl formamide, triallyl cyanurate, polystyrene, diethylene glycol dimethyl ether, antioxidant, heat stabilizer, and ultraviolet light absorber. In actual use, the thin film with high performance shows an excellent stretch-proof property and a high-temperature resistant property; meanwhile, the thin film and a clad layer are adhered and combined tightly and stably mutually, thus residual interior air is reduced, probability of generation of air breakdown is further lowered, and finally the service life of the capacitor can be prolonged by 30% or above.
Description
technical field [0001] The invention belongs to the technical field of electronic components, and in particular relates to a thin film for capacitors with excellent performance. Background technique [0002] Film capacitors are widely used in analog circuits due to their excellent characteristics such as non-polarity, high insulation resistance, excellent frequency characteristics (broad frequency response), and low dielectric loss. Film capacitors use metal foil as an electrode, and it is laminated with plastic base films such as polyethylene, polypropylene, polystyrene or polycarbonate from both ends, and then wound into a cylindrical capacitor; The thickness of the foil is thicker. With the development of more and more refined electrical components, it is replaced by a metal coating, that is, a layer of metal film is coated on the original film surface, which can significantly improve the size of the components. [0003] At present, the common metallized films used in th...
Claims
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Application Information
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