| 摘要 |
PROBLEM TO BE SOLVED: To provide a convenient and energy-saving cooling method, a very flexible and efficient cooling technique that also cools a wide area sufficiently, and basically provide a cooling sheet realizing excellent cooling power and suppression of water leakage.SOLUTION: The cooling sheet is provided in which a water-absorbent material absorbing water by a capillary phenomenon is arranged inside a water chamber filled with water, the whole part or a part of the water chamber is composed of a water diffusion membrane which is a cooling substrate for water diffusion, the water diffusion membrane is one in which a silica of 5-150 pts. as a dispersed phase is dispersed in a continuous phase composed mainly of a high molecule polymer based on 100 pts. of the continuous phase by mass standard, and a softening agent of 0-200 pts. is used for the water diffusion membrane based on 100 pts. of the high molecule polymer in the dispersed phase mainly composed of the high molecule polymers. |
