The glass fiber reinforced composite may be damaged by ultraviolet light in actual use, so the ultraviolet light aging test has become an important means to evaluate its durability. Unlike the Xenon-arc lamp aging test, the ultraviolet light aging test simulates the Destructiveness of sunlight on the material through fluorescent ultraviolet light lamps, which has some unique advantages.
1. Characteristics of fluorescent ultraviolet lamps
Fluorescent UV lamps are similar in electrical principle to ordinary cold lamps for lighting, but can generate more ultraviolet light than visible or infrared rays of light. Different types of fluorescent UV Lamps can simulate different light spectrum ranges in the solar Light spectrum, so that the test can better match the actual outdoor environment. The application of irradiance Control system makes the test results have high accuracy and reproducibility.
2. Effective means to simulate humid environment
One of the main advantages of the UV aging test is the ability to simulate the damage of the material in a more realistic outdoor humid environment. Through a special condensation principle, the test can simulate the outdoor humid condensation form, enhancing the authenticity of the test. During the condensation cycle, the heating of the Water Tank at the bottom of the Test Chamber generates steam, keeping the Test Chamber environment at 100% relative humidity at high temperatures. The condensation cycle system used in the test can continuously simulate outdoor humid, in which the water is stable and pure, which improves the reproducibility of the test results.
3. The importance of long-term condensation processes
Since the material is generally exposed to moisture outdoors for a long time, a typical circulating condensation system requires at least 4 hours of test time. The condensation process is carried out under heating conditions, which can greatly accelerate the damage of moisture to the material. This test method is more effective than the method of Miscellaneous Humidity environment to reproduce the damage phenomenon of humid environment to the material.
Overall, the glass fiber reinforced composite UV aging test provides a reliable and realistic means for researchers to evaluate the durability of materials by simulating the actual humid environment, providing strong support for the design and use of materials.
