Research on the Application of Xenon Lamp Accelerated Aging Chamber in Accelerated Testing of Material Weatherability

Introduction

Outdoor materials are subject to the synergistic effect of environmental factors such as ultraviolet radiation, temperature, humidity and rain for a long time, which is prone to aging failure such as fading, chalking, cracking and strength reduction, seriously affecting product service life and safety. Traditional natural exposure tests have a long cycle and uncontrollable environment, which are difficult to meet the needs of rapid iteration of new materials and batch factory inspection. Through the technical path of “Simulating Natural Environment + Accelerated Aging”, the Xenon Lamp Accelerated Aging Chamber can stably reproduce the full spectrum of sunlight and typical climate cycles, realizing an efficient and controllable aging process. It has become core equipment for weatherability testing in coatings, plastics, textiles, automobiles, photovoltaics, building materials and other fields. With high spectral similarity, precise environmental control and complete standard adaptability, the LISUN XD-WAT-Ci3000 Xenon Lamp Accelerated Aging Chamber is widely used in laboratory accelerated aging tests.

Core Principle and Technical Advantages of Xenon Lamp Accelerated Aging Chamber

Core Working Principle

The Xenon Lamp Accelerated Aging Chamber takes “Simulating Natural Environment + Accelerated Aging” as the core. The xenon arc lamp produces a continuous spectrum with more than 90% similarity to natural light, covering key aging bands such as ultraviolet, visible light and near-infrared. It is simultaneously integrated with temperature control, spraying, humidity adjustment and condensation modules to construct an alternating cycle environment of “light irradiation – high temperature – spraying – low temperature condensation”, fully reproducing the three core aging factors of sunlight, temperature and humidity. By enhancing irradiation intensity, increasing temperature fluctuation range and optimizing cycle frequency, the aging rate is significantly improved, realizing the rapid laboratory reproduction of long-term outdoor aging phenomena.

Key Technical Advantages
• High-fidelity spectrum simulation: Full-spectrum output of xenon lamps, equipped with a variety of filter systems, can simulate outdoor direct light, indoor light through glass, strong ultraviolet light and other scenarios to meet different standard test requirements.
•  Multi-factor collaborative acceleration: Four-dimensional coupling of light, heat, humidity and water, which is closer to the actual outdoor aging mechanism, with high correlation between test results and natural exposure.
•  Precise parameter control: Closed-loop regulation of irradiance, temperature, humidity and spraying cycle throughout the process, with high parameter stability and good test repeatability.
• Efficient time compression: Shortening the outdoor aging process of several years to several weeks, greatly improving R&D and testing efficiency and reducing time cost.

Core Parameters of LISUN XD-WAT-Ci3000 Xenon Lamp Accelerated Aging Chamber

The LISUN XD-WAT-Ci3000 is a water-cooled Xenon Lamp Accelerated Aging Chamber with large capacity, high precision and multi-standard adaptability. Its core technical parameters are shown in the table below.

Parameter Category	Specifications
Xenon lamp power / lifetime	1×4500W / 2000H
Exposure area	2188cm²
Sample capacity	22pcs@145×70mm
Sample rack type	Stainless steel drum type
Overall dimensions (L×W×H)	84×97×183cm
Power supply requirement	Three-phase 380V / 50A
Irradiance control	Direct setting, up to 2 suns and above
Irradiance probe	0.1~5000W/m², accuracy ±5%, repeatability ±1%
Temperature range	RT~85℃（±2℃）
Humidity range	20~95%R.H（±3%R.H）
Spraying system	Uniform front and rear spraying, pressure 0.12~0.15MPa, nozzle aperture 0.8mm
Cooling system	LiquiAIR xenon lamp cooling + water-cooled refrigeration unit
Control system	Multi-language touch screen, built-in 14 standard programs, support custom settings
Data monitoring	Real-time display of irradiance, power, temperature, humidity and cooling water parameters

Standard Test Procedure of Xenon Lamp Accelerated Aging Chamber

Taking the LISUN XD-WAT-Ci3000 Xenon Lamp Accelerated Aging Chamber as an example, the standard test procedure is as follows:
•  Sample preparation: Cut samples according to standards, test initial color difference, glossiness and tensile strength using a spectrophotometer, gloss meter and tensile testing machine to establish baseline data.
•  Equipment inspection and calibration: Check xenon lamp life, cooling system and spraying system; calibrate irradiance, temperature and humidity sensors to ensure parameter errors within allowable range.
•  Test condition setting: Set irradiance (e.g. 0.55W/m²@340nm), light/dark stage temperature, humidity, spraying cycle and other parameters according to standards.
•  Sample clamping: Samples are evenly fixed on the drum rack facing the light source, with spacing ≥10mm; empty positions are covered with blackboards to ensure environmental stability.
•  Test operation: Close the door and start the machine; timing begins after 30 minutes of stabilization. Monitor parameters regularly and observe sample appearance changes every 250 hours.
•  Conditioning and performance testing: After the test, samples are conditioned for 4h in a standard environment (23℃±2℃, 50%±5%R.H). Color difference, gloss and strength are retested to calculate performance retention rate.
• Result evaluation: Judge weatherability grade combined with appearance defects and quantitative data, and give compliance conclusions against industry standards.

Industry Standard Adaptation and Application Fields

Mainstream Testing Standards

The XD-WAT-Ci3000 Xenon Lamp Accelerated Aging Chamber is compatible with mainstream international and domestic weatherability testing standards, including: International standards: ISO 4892-2, ISO 105-B06, ASTM G155, AATCC TM16, SAE J2527, etc. Domestic standards: GB/T 1865, GB/T 8427, GB/T 16422.2, etc. Industry-specific standards: Automotive GMW 3414, VW PV3929, photovoltaic IEC 60068-2-5, etc.

Typical Application Fields

•  Material R&D: Screen coatings, plastics and textile formulas, optimize weatherability and shorten R&D cycle.

•  Automotive industry: Test aging resistance and fading resistance of car paint, bumpers and interior fabrics to meet OEM certification requirements.

•  Building materials and photovoltaics: Test weatherability of aluminum-plastic panels, waterproof rolls and photovoltaic backsheets to ensure long-term outdoor reliability.

•  Quality inspection: Pre-delivery compliance testing of industrial products to support market access and quality control.

•  Scientific research and testing: Aging mechanism research in universities and research institutes, standardized testing services by third-party testing institutions.

Result Analysis and Engineering Value

Through “Simulating Natural Environment + Accelerated Aging”, the Xenon Lamp Accelerated Aging Chamber can quantitatively evaluate material aging behavior: color difference ΔE>3 indicates obvious fading, tensile strength retention rate <80% suggests insufficient weatherability, and gloss retention rate reflects coating gloss loss. Compared with natural exposure, the XD-WAT-Ci3000 test cycle is shortened by more than 90%, with consistent data, which can effectively guide formula improvement, process optimization and service life prediction.

Conclusion

The Xenon Lamp Accelerated Aging Chamber with “Simulating Natural Environment + Accelerated Aging” as its core, realizes the efficient laboratory reproduction of complex outdoor environments and is key equipment for material weatherability evaluation. The LISUN XD-WAT-Ci3000 Xenon Lamp Accelerated Aging Chamber features accurate spectrum simulation, stable environmental control and comprehensive standard adaptation, enabling rapid acquisition of reliable weatherability data. It widely supports new material R&D, product quality certification and engineering applications. With the development of lightweight and green materials, the Xenon Lamp Accelerated Aging Chamber will play an important role in more fields, providing core technical support for improving outdoor durability and market competitiveness of products.

Tags：XD-WAT-Ci3000