Causes of aging of color coated rolls

Categories:Industry News
Author:
Origin:
Time of issue:2020-10-13
Views:0

(Summary description)With the development of industry now, everyone should be very familiar with color-coated rolls. Because of its characteristics, it is widely used. In order to better use the equipment, let's understand the reasons for the aging of color-coated rolls.

The prerequisite for the aging or photochemical reaction of the color-coated coil is that the surface composition of the color-coated coil can absorb radiation. When the radiation absorbed by the molecular structure is greater than the bond energy of the molecular structure, the coating can be dissolved, because the less the wavelength of the light source, the contained The more kinetic energy. The brittleness of color-coated rolls in air pollution is the kinetic energy of natural light in the ultraviolet band, which is higher than the bond energy of molecular structures. As the polyurethane coating ages, the substrate itself is gradually missing, and the surface of the coating gradually becomes smooth and loses light. The loss of this matrix leaves a more stable color paste, which is left in the form of a non-sticky powder for the surface layer of the polyurethane coating. This process is called delamination. The aging resistance of thin-coated polyester steel coils varies greatly, and the aging resistance of thin-coated color plates is weak.

The above is about the reasons for the aging of color coated rolls. Any product can only achieve good results according to the correct operation method, and avoid problems causing unnecessary trouble. If you don't understand, you can call for consultation.





Causes of aging of color coated rolls

(Summary description)With the development of industry now, everyone should be very familiar with color-coated rolls. Because of its characteristics, it is widely used. In order to better use the equipment, let's understand the reasons for the aging of color-coated rolls.

The prerequisite for the aging or photochemical reaction of the color-coated coil is that the surface composition of the color-coated coil can absorb radiation. When the radiation absorbed by the molecular structure is greater than the bond energy of the molecular structure, the coating can be dissolved, because the less the wavelength of the light source, the contained The more kinetic energy. The brittleness of color-coated rolls in air pollution is the kinetic energy of natural light in the ultraviolet band, which is higher than the bond energy of molecular structures. As the polyurethane coating ages, the substrate itself is gradually missing, and the surface of the coating gradually becomes smooth and loses light. The loss of this matrix leaves a more stable color paste, which is left in the form of a non-sticky powder for the surface layer of the polyurethane coating. This process is called delamination. The aging resistance of thin-coated polyester steel coils varies greatly, and the aging resistance of thin-coated color plates is weak.

The above is about the reasons for the aging of color coated rolls. Any product can only achieve good results according to the correct operation method, and avoid problems causing unnecessary trouble. If you don't understand, you can call for consultation.

Categories:Industry News
Author:
Origin:
Time of issue:2020-10-13
Views:0

With the development of industry now, everyone should be very familiar with color-coated rolls. Because of its characteristics, it is widely used. In order to better use the equipment, let's understand the reasons for the aging of color-coated rolls.

The prerequisite for the aging or photochemical reaction of the color-coated coil is that the surface composition of the color-coated coil can absorb radiation. When the radiation absorbed by the molecular structure is greater than the bond energy of the molecular structure, the coating can be dissolved, because the less the wavelength of the light source, the contained The more kinetic energy. The brittleness of color-coated rolls in air pollution is the kinetic energy of natural light in the ultraviolet band, which is higher than the bond energy of molecular structures. As the polyurethane coating ages, the substrate itself is gradually missing, and the surface of the coating gradually becomes smooth and loses light. The loss of this matrix leaves a more stable color paste, which is left in the form of a non-sticky powder for the surface layer of the polyurethane coating. This process is called delamination. The aging resistance of thin-coated polyester steel coils varies greatly, and the aging resistance of thin-coated color plates is weak.

The above is about the reasons for the aging of color coated rolls. Any product can only achieve good results according to the correct operation method, and avoid problems causing unnecessary trouble. If you don't understand, you can call for consultation.

Scan the QR code to read on your phone

Previous: None

Next: Color coated board roof is a new type of panel

Previous: None

Next: Color coated board roof is a new type of panel