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What is back ionisation?

Updated: 12/23/2022
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12y ago

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Electrons which have not attached themselves to powder particles also travel in the air stream and along the electrostatic field lines to the item being coated. This is because it is grounded. The unattached electrons are attracted to the component together with the powder particles where they build up because of the isolating layer of the already deposited powder particles. If too many charges with the same polarity are deposited on the workpiece, the electrostatic force between the individual particles becomes so strong, that they repell each other and get pushed away from the surface. This is called back ionisation. Back ionisation causes discharges within the powder coat itself and also makes it difficult to coat complex shapes. Additionally, back ionisation causes the powder coat to be uneven and when stoved, the finished surface looks like orange peel.

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Q: What is back ionisation?
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Ionisation energy of noble gases?

noble gases have the maximum ionisation energy. helium has the highest ionisation energy


Why are the ionisation energy of isotopes the same?

no the same,first ionisation contains a slightly differences in isotopes


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Ionisation energy decreases down the group. It is easy to remove an electron.


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ionisation system stay in water whereas chlorine evaporate into the air, Chlorine irritates the skin, the eyes, and the respiratory system.


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both are in the same period which accounts for closeness. they are nonetheless different because there are more protons in the nucleus which means electrons are brought closer to it so there is a higher ionisation energy or potential


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when we go from left to right


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