Corona resistance

Corn syrups [8029-43-4] Corn wet-milling Corn whiskey Coronadite [12414-82-3] Corona resistance Coronary bypass Coronary heart disease Coronates Coronavims Coronene [191-07-1] Coromte... 

The most important electrical properties of insulation are dielectric strength, insulation resistance, dielectric constant, and power factor. Corona resistance, although not stricdy an electrical property, is usually considered also (10). 

Voltron (DuPont) is a wire enamel in which nanoparticles of silicates or other inorganic materials are chemically linked to the enamel polymer backbone. Voltron provides a much better corona resistance than enamels merely filled with inorganic ingredients. One of the first ignition coils to use Voltron is for road-course and circle-track racing of modified stock cars. 

Corona resistance -of insulating matenal [INSULATION, ELECTRIC] (Vol 14)... 

In order to obtain the optimum dielectric strength, it is necessary to avoid the formation of voids. Thomas, Lontz, Sperati, and McPherson have shown that the dielectric strength may be as low as 200 volts/mil when polytetrafluoroethylene is fabricated in a way which produces several per cent voids. Sugita, Nagao, and Toriyama also showed how the elimination of voids improved the corona resistance of polytetrafluoroethylene and decreased the rate of dielectric breakdown. The dielectric breakdown under prolonged stress was studied by Brodhun. He also showed how the presence of corona causes an additional effect. Pao and Bjorklund performed quantum mechanical calculations of the energies of excited electronic states. 

Sugita, K., S. Nagao and Y. Toriyama The corona resisting property of poly-tetraflnoroethylene. Brit. J. Appl. Phys. 7, 38 (1956). 

The basic role of gas in the electric properties of plastic foams postulated by Domkin has been confirmed by Giessner in a study on the electric properties of epoxide foams, the cells of which were filled with a electronegative gas, sulfur hexafluoride (SFg). The introduction of SFg results in very good dielectric properties over a wide temperature interval, including high Ebr corona resistance (Fig. 21). Previously, Palmer established that Ebr in the case of SFg is by 3.5 times higher than for air. 

Singh et al. [1995] and Siquin and Chen [1995, 1996], for crosslinking of LDPE at <150 kGy). Moreover, the addition of EPDM to LDPE followed by irradiation resulted in the materials showing (i) better corona resistance (ii) reduced voids (iii) higher hot modulus (iv) more flexibility and (v) better sliceability. 

Aircraft Electrical Potting Compound - Low temperature flexibility, resistance to corona, resistance to hydraulic fluids and aircraft fuels. 

Electrical properties (insulating, dielectric breakdown, corona resistance, and so on) of ethylene-propylene rubbers are excellent. This is especially true for peroxide-cured EPR. 

Corona resistance n. Ability of a material to withstand the effects of corona discharge. 

See arc resistance, break-down voltage, corona resistance, and dielectric strength. 

The thermal stability was also evaluated for blends made of SBR-recycled NBR, which were stabilized using electron beam irradiation [171]. The application of this material is given by the recycling of rubber gloves. The use of silicone rubber in different industrial applications is given by its properties, such as (1) thermal stability, (2) dielectric properties, and (3) ozone and corona resistance. 

Ozone/corona resistance Excellent Medium-excellent... 

See also corona resistance high-voltage-resistant plastic arc- and track-resistant plastic. 

Corona resistance Among the factors contributing to the breakdown of insulating materials is dielectric heating at high frequencies and, in many instances, the effect of corona. Corona is usually described as the partial breakdown of insulation due to the concentration of electrical stress at sharp edges, or actual breakdown of insulation when placed in series with another insulation having a different dielectric constant. 

Arc Resistance, Break-Down Voltage, Corona Resistance, Dielectric Strength. 

Additive to improve corona resistance of polyimide films (2585). 

Use As additive for flame resistant polyester (2702), for corona resistance in polyimide films (2585). 

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