| 摘要 |
PURPOSE: To provide a composition capable of more clarifying a phase change temperature than those of conventional compositions without causing the lowering in the capacity of stored heat. capable of reducing the difference between a solidifying temperature and a melting temperature, and exhibiting an effect excellent in thermal hysteresis stability by the addition of a phase separation- preventing agent. CONSTITUTION: This latent heat-storing material composition comprises 100 pts.wt. of sodium sulfate decahydrate as a main component, 10-35 pts.wt. of an ammonium salt and/or urea as a solidifying point-lowering agent, 0.3-5 pts.wt. of a polyhydric alcohol as a phase change temperature-controlling agent, and, if necessary, 5-30 pts.wt. of a solid acid as a phase separation-preventing agent. |
