智能遮阳材料的应用性能初探

通过调节水溶性聚合物配比和无机盐配比,可以使智能遮阳材料的转变温度、透光率、转变灵敏度及迟滞性等达到最佳.日间曝晒结果表明,透明状态的智能遮阳材料可使曝晒箱升温30℃,不透明状态的该材料可在同等条件下具有阻止曝晒箱内温度升高9℃左右的遮光效果,有利于缓解夏季的过热现象.该智能遮阳材料可耐1 000次高低温循环,5年以上的自然曝晒,凝固温度低于- 10℃,环境温度高于转变温度时可保持1年以上均匀稳定的白色不透明絮状.

Preliminary Research on Application Properties of Intelligent Solar Protection Materials

The intelligent solar protection materials can be made out by using soluble polymer and inorganic salts.The switching temperatures,transmittance,sensitivity and hysteresis of these materials can be changed by adjusting the proportion of soluble polymer and inorganic salts.Based on this,the optimal compositions were optimized.The results of daytime insolation indicate that the maximum temperature difference of the insolation device reaches 30 ℃ when the intelligent solar protection material is transparent.However,when the material changes to opaque,the maximum temperature difference is 10 ℃ lower than that of the transparent state,which can make the over-hot phenomenon above the switching temperature diminished.No problems are recognized in 1 000 cycles of tests from-10 ℃ to 50 ℃.The freezing point of these materials are lower than-10 ℃.Besides,these materials can keep 5 years light durability and keep steady white and opaque state for longer than 1 year above the switching temperature.