摘要
以三水醋酸钠为例,研究其在凝固过程中存在严重的过冷和相分层问题,用羧甲基纤维素(CMC)和明胶做其防相分层剂,添加不同的成核剂,来解决其过冷问题。通过匹配实验和循环实验找出几种能显著改善三水醋酸钠相变性能的添加剂配方,并对两组结果进行了比较分析。
As a phase change material, sodium acetate trihydrate has serious supercooling and phase segregation during solidification. CMC and glutin are used as thickening agent and several salts are added as nucleating agents in order to reduce the supercooling. Make experiments on matching and cycling to find several effective additives, on second thoughts compare and analyse two results.
出处
《洁净与空调技术》
2009年第3期12-14,共3页
Contamination Control & Air-Conditioning Technology
关键词
相变材料
过冷
成核剂
Phase change material
Supercooling
Nucleating agents
