What is UV aging test?

What is UV aging test?
　　UV aging test: using fluorescent ultraviolet lamp as the light source (with UVA and UVB lamp sources), by simulating the ultraviolet radiation and condensation in natural sunlight, the accelerated weather resistance test is performed on the material to obtain the weather resistance result of the material.
　　UV aging tester does not simulate full-spectrum sunlight, but it simulates the destructive effects of sunlight. This is achieved by controlling the main radiation of the fluorescent tube in the ultraviolet band of the solar spectrum. This method is effective because short-wave ultraviolet rays are the most important factor causing outdoor material aging. UV light intensity meter can be used to test the uv light intensity of uva and uvb bands.
　　UV aging test test standard: ASTM G 154-06
　　Using fluorescent ultraviolet lamps as the light source, using condensed moisture to simulate rain and dew, and by simulating the ultraviolet radiation in natural sunlight, the accelerated weather resistance test is carried out on the material to obtain the weather resistance result of the material. Including fading, discoloration, chalking, cracking, embrittlement, strength reduction and oxidation tests.
The aging test is a process of simulating various factors involved in the actual use conditions of the product to carry out corresponding conditions and strengthening experiments. The experiment is mainly for plastic materials. Common aging mainly includes light aging, damp heat aging, and hot air aging. When the product is used outdoors, it is often exposed to sunlight. If you want to know the life of the product when it can be used outdoors, you need to simulate the sun's ultraviolet light for UV aging experiments. Of course, the intensity of the experiment is much greater than the actual outdoor light intensity, thus shortening the test Time, you can understand the aging of the product after how many years of use through a short test. In the same way, if the product is used in a humid environment such as a bathroom with a high temperature, it will be subjected to damp heat aging. If the product is used in the heat dissipation position of the machine, it must be subjected to hot air aging.