氙燈老化測試
造成材料老化的主要因素是陽光和潮濕,太陽光是造成很多材料降解的一個主要因素。降解的類型,如物理性能下降、粉化、開裂、起皮、褪色及顏色變化等與材料的敏感度和光譜有關,每種材料對光譜響應不同。對于耐久材料,如大部分涂料和塑料,短波紫外線是造成聚合物老化的主要原因。然而,對于不是特別耐久的材料,長波紫外線甚至短波可見光是造成其破壞的主要因素。
氙燈氣候試驗箱可以模擬由陽光、雨水和露水造成的危害,利用氙燈模擬陽光照射的效果,利用冷凝濕氣模擬雨水和露水,被測材料放置在一定溫度下的光照和潮氣交替的循環程序中進行測試,用數天或數周的時間即可重現戶外數月乃至數年出現的危害,人工加速老化試驗數據可以幫助選擇新材料,改造現有材料,以及評價配方的變化是如何影響產品的耐久性的。
參考的測試標準:ISO 4892.2-2006,GB/T 16422.2-1999,ASTM D 4459-2006,DIN75220
Xenon lamp aging test
The main factors causing material aging are sunlight and humidity, and sunlight is a major factor causing degradation of many materials. The type of degradation, such as degradation of physical properties, pulverization, cracking, peeling, fading and color change, is related to the sensitivity and spectrum of materials, and each material has different spectral response. For durable materials, such as most paints and plastics, short wave ultraviolet radiation is the main cause of polymer aging. However, for materials that are not particularly durable, long wave ultraviolet and even short wave visible light are the main factors causing damage.
The xenon lamp climate test chamber can simulate the hazards caused by sunlight, rain and dew. The xenon lamp can be used to simulate the effect of sunlight, and the condensed moisture can be used to simulate rain and dew. The tested materials are placed in a cycle of alternating light and moisture at a certain temperature for testing. The outdoor hazards of months or even years can be reproduced in a few days or weeks. The artificial accelerated aging test data can help select new materials, Modification of existing materials and evaluation of how changes in formulation affect product durability.
Reference test standards: ISO 4892.2-2006, GB/T 16422.2-1999, ASTM D 4459-2006, DIN75220
氙燈燈管功率:6KW
光照周期:0~9999小時99分鐘
波長:290nm~800nm
輻照強度:550W/m2~1250W/m2(可調)
內箱尺寸:950×950×850mm
溫度范圍:室溫+10~±80℃
溫度均勻度:±2℃(空載時)
濕度偏差:±3%RH
濕度范圍:30%~95%RH
Xenon lamp power: 6KW
Light cycle: 0~9999 hours and 99 minutes
Wavelength: 290nm~800nm
Irradiation intensity: 550W/m2 ~ 1250W/m2 (adjustable)
Inner box size: 950 ×950 × 850mm
Temperature range: room temperature+10~± 80 ℃
Temperature uniformity: ± 2 ℃ (no-load)
Humidity deviation: ± 3% RH
Humidity range: 30%~95% RH