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为了制备兼具热湿功能的建筑石膏材料,将自制的温湿调节剂按照不同比例掺入石膏中配制多元复合材料.通过采用“时间-温度”坐标系方法,测试复合材料调温性能的变化规律,采用饱和盐溶液法测试复合材料的调湿性能,分析了调节剂对热湿综合性能的影响并进行评价.利用傅里叶红外光谱仪、压汞仪、差示扫描量热仪、扫描电镜等手段对复合材料组成、孔结构、相变温度和相变潜热及形貌进行表征.结果表明:当温湿调节剂掺量为40%时,建筑石膏复合材料相变温度20.86~34.52℃,相变潜热10.72~12.61 J/g,表明该复合材料具有满足建筑室内对热性能要求,建筑石膏复合材料最大平衡含湿量为0.046 44~0.047 34 g/g,表明该复合材料具有良好的调湿效果.
In order to prepare the building gypsum material with both heat and moisture function, the homemade temperature and humidity regulator was mixed into gypsum in different proportions to prepare the multi-component composite material, and the thermostat performance of the composite material was tested by using “time-temperature” coordinate system method The saturated salt solution method was used to test the humidity control performance of the composites and the influence of the modifier on the comprehensive performance of the heat and moisture was analyzed and evaluated.The effects of the modifier on the properties of the composite were evaluated by Fourier transform infrared spectroscopy, mercury intrusion porosimetry, differential scanning calorimeter, Scanning electron microscopy and other means were used to characterize the composition, pore structure, phase transition temperature, latent heat and morphology of the composites.The results showed that the phase transition temperature of gypsum composites was 20.86 ~ 34.52 ℃ and latent heat of 10.72 ~ 12.61 J / g, indicating that the composite has the thermal performance requirements of the building interior. The maximum equilibrium moisture content of the gypsum composite is 0.046 44 ~ 0.047 34 g / g, indicating that the composite has good The humidity control effect.