In recent years, people are more and more concerned about the weathering resistance of pigments in coatings. When outdoor paint is affected by factors such as light, temperature, and humidity under atmospheric conditions, it will cause aging phenomena such as fading, color migration, and color intensity changes.
Natural outdoor exposure and accelerated aging test chamber is the main method to test the weathering resistance of materials. The paint industry at home and abroad has carried out outdoor atmospheric aging tests for a long time. Outdoor exposure testing has many advantages, such as real, cheap and easy to operate.
The test time of outdoor exposure is relatively long, so it is necessary to conduct accelerated aging test in the laboratory. In terms of accelerated aging tests, except for a few Japanese companies that still use carbon arc lamps, the main test methods are ultraviolet light and xenon lamps.
However, the UV aging test chamber cannot simulate all aging parameters, and there are some test variables that can easily cause erroneous test results, which can lead to erroneous conclusions. However, the results of outdoor exposure can be used as a reference to verify the authenticity of the accelerated aging test, which will make the accelerated aging test more practical.
Bamboo Door,Bamboo Door for Environmental Protection,Insect-Proof Bamboo Gate,Bamboo Door for Home Decoration
Sichuan Shihai Import And Export Trade Co.Ltd , https://www.zgshzm.com