Photovoltaic backboard is an important material located on the back of photovoltaic modules, which plays a protective and supportive role in the battery cells. Its performance has a significant impact on the performance and service life of photovoltaic modules. In order to ensure the long-term reliability and durability of photovoltaic modules, the backboard should have excellent weather resistance, electrical insulation, water vapor barrier, etc. Among them, High Accelerated Damp Heat Test (HAST) plays a crucial role as an effective testing method in evaluating the weather resistance performance of fluorinated photovoltaic backboards.
HAST testing is a testing method that evaluates the weather resistance of materials by simulating extreme humid and hot environments. During the testing process (with a temperature of 120 ℃ and a relative humidity of RH100%), the fluorinated photovoltaic backboard was placed in such a high temperature and humidity environment. By controlling the temperature and humidity, extreme conditions in the natural environment were simulated to accelerate the aging process of the backboard. By observing and measuring the performance changes of the backboard before and after testing, its weather resistance performance can be comprehensively evaluated.
In addition to HAST testing, there are various other testing methods that can be used to evaluate the weather resistance performance of fluorinated photovoltaic backboards. These testing methods can evaluate the performance of backboards from different perspectives and aspects, providing more comprehensive and in-depth information for the research and application of backboards. For example, UV aging testing can simulate the effect of ultraviolet radiation on the backboard, and thermal oxygen aging testing can simulate the aging process of the backboard under high temperature conditions.
The zonglen HAST high acceleration life test chamber is mainly used to evaluate the reliability of products or materials in humidity environments. It is achieved by setting and creating various conditions of temperature, humidity, and pressure in highly controlled pressure vessels, which accelerate the penetration of moisture into external protective plastic packaging and apply these stress conditions to the material body or inside the product. Compared to traditional high temperature and high humidity testing, HAST increases the pressure inside the container, enabling temperature and humidity control under conditions exceeding 100 ℃, accelerating the aging effect of temperature and humidity, greatly shortening the testing cycle for reliability assessment, and saving time and cost.
Equipment features:
The standard design is safer, and the inner arc design prevents condensation and dripping, which complies with national safety container regulations
Multiple protection functions, two high-temperature protection devices, humidity water cut-off protection, and overpressure protection
Higher stability: Equipped with self-developed PID control algorithm, ensuring the accuracy of temperature, humidity, and pressure values
Humidity free selection: saturation and unsaturation free setting
High intelligence: USB data, curve export and saving