一种可逆热致散射调光材料的性能及机理研究  

Properties and Mechanism Study of a Reversible Thermally Light Adjusting Material

作　　者：赵贵红[1] 王跃川[1] 

机构地区：[1]四川大学高分子科学与工程学院高分子国家重点实验室,成都610065

出　　处：《信息记录材料》2011年第5期3-7,共5页Information Recording Materials

摘　　要：采用紫外光固化技术制备了一种可逆热致浑浊调光薄膜材料。0.4mm厚薄膜在140℃的混浊态和40℃以下的透明态所对应的绝对透过率分别为～10%和～80%,热致浑浊转变温度范围为47～140℃。薄膜从140℃的浑浊态在室温下自然放置历时3min,在575nm处透过率从10%升高到70%,经60次循环疲劳试验最高和最低透过率没有衰减。傅里叶-红外分析仪实时跟踪结果表明薄膜透明-浑浊转变过程与氢键的可逆破坏-形成有关。A reversible thermally light adjusting material was prepared with energy-saving and environmentally friendly ultraviolet photocuring technology. With ultraviolet spectrophotom eter and home-made heat installation, the optical transmittance, and other properties, including optical, contrast ratio of highest transmittance and lowest transmittance, responsing time, recursitivity and reversibility were studied . There are a wide switching temperature range （47℃-140℃） and a high light adjusting range （10%-80%） for 0.4-millimeter film. The thermo-opti- cal mechanism of the material was researched and proposed based on the realtime-FTIR spectro gram. the results show that the properties of the reversible thermally light adjusting are related with the reversible destroying and forming.

关 键 词：可逆 热致散射调光 实时红外 氢键 

分 类 号：TQ31[化学工程—高聚物工业]