在储能过程中多元醇类相变材料挥发性的实验研究  

Experimental Study on the Volatility of Polyalcohols in the Process of Thermal Storage

作　　者：闫全英[1] 王威[2] 

机构地区：[1]北京建筑工程学院城建系,北京100044 [2]信息产业部电子第六研究所,北京100083

出　　处：《材料导报》2005年第F11期269-270,273,共3页Materials Reports

基　　金：北京市供热、供燃气、通风及空调工程重点实验室项目（KF200310）

摘　　要：研究了由新戊二醇、季戊四醇和三羟甲基氨基甲烷组成的一元、二元和三元体系在固-固相转变和固-液相转变过程中的挥发性。材料在固-固转变过程中，失重率较低，在5％以内，材料密封后无失重现象；在固-液转变时，失重率较大，密封后有轻微的失重。温度越高，多元醇的挥发性越大。不同组成的多元醇体系在储能过程中有不同程度的失重现象。在使用时应考虑材料的密封，以免影响储热性能。This paper introduces the experimental study on the volatility of monobasic, binary and triatomic systems consisting of neopentylglycol, pentaerythritol and trihytdroxy methyl-aminomethane with different component. In the solid-solid phase change process, the weight loss rate of polyalcohols is lower than 5 percent, and the weight loss rate of polyalcohols is zero after polyalcohols are sealed. In the solid-liquid phase change process, the weightloss rate of polyalcohols is higher, and the weight loss rate of polyalcohols is very low after polyalcohols are sealed. The higher the temperature of polyalcobols, the higher the volatility. Polyalcohols should be sealed in the process of thermal storage.

关 键 词：多元醇 挥发性 失重率 固-固相变材料 

分 类 号：TB34[一般工业技术—材料科学与工程] TQ221.11[化学工程—有机化工]