Basic principle and definition of antifogging coating
Antifogging paint is a very practical paint, it can prevent fog, block people's sight, the basic principle and definition of antifogging paint what, let us know about it.
Antifogging coating is a kind of functional coating.It is based on the hydrophilic group or hydrophobic group as the main component of polymer materials, and other additives and organic solvents in proportion to prepare, with anti-fogging function of chemical products.
Because solidify method is different, have heat solidify to prevent fog coating and UV(ultraviolet) light solidify to prevent fog coating ultraviolet solidify to prevent fog coating to have higher transmittance than heat solidify to prevent fog coating normally.Uv-curable antifogging coatings usually have higher light transmittance than heat-curable antifogging coatings.Because they have different antifogging mechanisms, they also have hydrophilic antifogging coating and hydrophobic antifogging coating hydrophobic antifogging coating is more widely used than hydrophobic antifogging coating.
Whether it is heat curing anti-fogging coating or uv curing anti-fogging coating, there are only two types of anti-fogging mechanism: hydrophilic anti-fogging and hydrophobic anti-fogging.
Hydrophilic antifogging and hydrophobic antifogging are two different processes of water molecules, so their antifogging mechanisms are completely different: hydrophilic antifogging coatings make surfaces hydrophilic and reused.
Anti-fog coating hydrophilic groups of hydrophilic adsorption moisture factor, reduce the surface tension of water, reduce water molecules and the contact Angle between the surface and the water vapor is not on surfaces accumulate into small water droplets, will be wet, spread or forming a thin transparent film adsorption on the surface, no longer scattering incident light, does not interfere with the line of sight of people, so as to achieve the purpose to prevent mist.
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