With the use of large shutter doors, the requirements of the shutter door is also getting higher and higher, especially in the outdoor and the need for dust sterilization occasions, these occasions widely exist in natural and artificial ultraviolet, the appearance and performance of the shutter door caused a great impact

With the use of large rolling shutter doors, the requirements of rolling shutter doors are also getting higher and higher, especially in outdoor and need dust sterilization occasions, these occasions widely exist in natural and artificial ultraviolet, the appearance and performance of rolling shutter doors have a great impact, so in the fast rolling shutter door cover to add a certain UV absorber, to improve the appearance and service life of the rolling shutter door has a great help. As a light stabilizer, UV absorbers can absorb the ultraviolet part of sunlight and fluorescent light sources without changing. So that plastic and other polymer materials in sunlight and fluorescence, not due to the role of ultraviolet light, automatic oxidation reaction, delay the degradation of polymer degradation, so as to extend the appearance and mechanical properties of fast shutter door curtain.
Due to the production of different types of shutter curtain materials, ultraviolet wavelengths are not the same, different ultraviolet absorbers can absorb different wavelengths of ultraviolet light, when used, should be selected according to the type of curtain ultraviolet absorber. Ultraviolet absorbers should have the following conditions:
1 can better absorb ultraviolet light (especially the wavelength of 290-400nm);
Good thermal stability, even in the process will not change due to heat, thermal volatility is small;
The chemical stability is good, not with the composition of the curtain material adverse reaction;
The miscibility is good, can be evenly dispersed in the material, no spray frost, no exudation;
⑤ The photochemical stability of the absorbent itself is good, does not decompose, does not change color. Since the light conveyor belt for rolling doors belongs to soft PVC products, the UV-336 suitable for use in soft PVC is selected as a UV absorber.
Key words:Qingdao fast door; Qingdao Industrial Lift Gate