發(fā)布時間：2018-04-07 17:58

  本文選題：脂肪酸　切入點：相變墻體　出處：《化工新型材料》2017年08期

【摘要】：選取癸酸、硬脂酸、月桂酸、棕櫚酸和肉豆蔻酸5種脂肪酸按預先設定的比例混合配制脂肪酸二元混合物,利用差示掃描量熱儀測試混合物的相變溫度和相變潛熱,以尋找具有合適的相變溫度、較大的相變潛熱,能用于相變圍護結構的脂肪酸混合物。結果顯示:脂肪酸二元混合物的相變溫度和相變潛熱相比單一組分的值有所降低;含葵酸的二元脂肪酸混合物的相變溫度較低,范圍大致為20~30℃,且相變潛熱也較大,是用于墻體儲能的理想相變材料;其他脂肪酸組成的二元混合物相變溫度較高,不符合墻體儲能的溫度要求。
[Abstract]:Five fatty acids, sebacic acid, stearic acid, lauric acid, palmitic acid and myristic acid, were selected to prepare the binary fatty acid mixture in a predetermined proportion. The phase transition temperature and latent heat of the mixture were measured by differential scanning calorimetry.In order to find suitable phase change temperature, larger phase change latent heat, can be used in phase change envelope fatty acid mixture.The results show that the phase transition temperature and latent heat of phase change of fatty acid binary mixture are lower than that of single component, the phase transition temperature of binary fatty acid mixture containing sunflower acid is lower, the range is about 20 ~ 30 鈩，

本文編號：1720251