【摘要】 在白水泥中掺加变色微胶囊可制备出常温可逆温致变色水泥基材料.掺10%(质量分数)蓝色变色微胶囊水泥基材料的颜色可在低温时的蓝色和高温时的白色之间可逆变化,其变色温度约为42℃;掺10%红色或绿色变色微胶囊水泥基材料的颜色也可随温度发生相应的可逆变化,两者的变色温度均为58℃左右,其中红色变色微胶囊水泥基材料符合建筑装饰对材料低温暖色调、高温冷色调且能随温度可逆变化的要求.更多还原

【Abstract】 The reversibly thermochromic cement based material at normal temperature was prepared by adding reversibly thermochromic microencapsules in white Portland cement.The research results show that the color of the reversibly thermochromic cement based material added with B30 could be changed reversibly from blue at lower temperature to white at higher temperature,and the switching temperature is about 42 ℃.When added with R30 or G30,the color could be reversibly changed from red or green to white,and the switching temperature was about 58 ℃,in which the R30 microencapsules could meet the needs of warm tone in winter and cool tone in summer for buildings.When B30 was added in white Portland cement,the water demand for normal consistency of cement paste increased by about 13%,and the mechanical properties,such as flexural strength and compressive strength, decreased by 20%～40%,but the setting time and the soundness of cement were not affected,which indicated that the prepared material could meet the demand direction for creation of thermally comfortable environment in buildings.更多还原