| 简介 |
The present invention relates to a hydrogel composition containing rare earth oxides, a hydrogel sheet, and a method for producing the hydrogel sheet. More specifically, the present invention relates to a hydrogel composition containing rare earth oxides, consisting of rare earth oxides, a dispersant, a gelated polymer, polyvalent alcohol, and water. The present invention further relates to a hydrogel sheet containing rare earth oxides produced by using the composition, and a production method of the sheet. According to the present invention, the hydrogel composition containing rare earth oxides and the hydrogel sheet containing rare earth oxides are capable of changing colors depending on conditions involving different light sources. |
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