In order to accurately evaluate the aging resistance of automotive components and materials, accelerated aging tests have become a critical process. Among various factors, light radiation—especially from xenon lamps—is a key factor in assessing the durability of dashboard materials. Below is an explanation of how the illumination from a xenon lamp aging test chamber affects car dashboard materials:
Sunlight travels through the atmosphere as electromagnetic waves, with energy directly proportional to frequency and inversely proportional to wavelength. Within the solar spectrum, ultraviolet (UV) light, which has a short wavelength, carries high energy. Although UV radiation makes up only about 1% of total solar radiation, it significantly impacts non-metallic materials. The macromolecular chains in these materials absorb UV energy, triggering chemical reactions such as oxidation, ozonation, and hydrolysis via free radicals. Additionally, UV exposure can alter the crystalline structure, orientation, and size of polymers, leading to a decline in material performance over time.
To simulate real-world conditions, manufacturers like YASELINE recommend using the SN-900 xenon lamp aging test chamber. This equipment replicates the effects of natural sunlight, helping ensure that dashboard materials meet long-term durability standards.
In reality, the light that reaches a car's dashboard is not direct sunlight but rather indirect light that passes through the windshield. As sunlight enters the vehicle, some of it is reflected by the glass, while some is absorbed. Only the portion that passes through the glass actually affects the dashboard material, contributing to its aging process. Therefore, testing under controlled light conditions is essential for predicting and improving the longevity of automotive interior components.
ZHEJIANG ERHUI TECHNOLOGY CO.,LTD , https://www.jahhome.com