| 摘要 |
PURPOSE:A heat accumulative material of latent heat repeating accumulation of heat and heat release without causing phase separation, containing sodium sulfate 10 hydrate (eutectic crysta), a crystal nucleus-forming agent, and a concentrating agent consisting of a water-insoluble water absorbing resin and CMC. CONSTITUTION:The desired heat accumulative material of latent heat containing (A) 100pts.wt. sodium sulfate 10 hydrate or its eutectic crystal, (B) a crystal nucleus-forming agent such as borax, etc., and (C) a concentrating agent consisting of (i) 1-10pts.wt. water-insoluble water-absorbind resin and (ii) 0.1-5pts.wt. CMC. A substance obtained by polymerizing a polysaccharide such as starch, sellulose, etc. with a water-soluble monomer such as acrylic acid, etc. as essential components (with crosslinking agent), and, if necessary, by hydrolyzing the polymer, may be cited as a good example of the component i, in the component C. |
