The reason to cause the big error in the experiment for measuring the heat of vaporization is analyzed, and the influence of the material of steam pipe on the experimental error is studied in particular.
分析水的汽化热实验中误差的产生原因 ,重点探讨蒸汽导管的选择对汽化热测量的影响 。
The NC membranes were prepared by casting and coagulation, phase separation induced by vapor phase, and dry-cast process in the paper.
本论文分别采用直接浸入法、蒸汽诱导法以及干法制备了NC膜,初步探讨了它们的成膜机理,并考察了NC膜对蛋白质的吸附性能,具体研究内容如下: (1) 分别以丙酮、二甲基乙酰胺、二甲基亚砜为溶剂,采用直接浸入法制得NC膜,并考察了凝胶浴中溶剂含量对膜结构的影响。