Cellulose molded body and hydrogel, and method for producing the same
AssigneeJapan Agency for Marine-Earth Science and Technology
InventorNoriyuki Isobe
Life of this patent
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Abstract
A method for producing a hydrogel according to the present disclosure includes: (A1) a step of preparing an object to be treated including a water-soluble cellulose-based compound and water; (B1) a step of heating the object to be treated so as to separate water from the object to be treated; and (C1) a step of cooling the object to be treated that has acquired an increased content percentage of the cellulose-based compound through the treatment in step (B1), and a series of steps from step (B1) to step (C1) are repeated until the content percentage of the cellulose-based compound in the object to be treated reaches 10% by mass or more.
Claims8
A hydrogel comprising a water-soluble cellulose-based compound and water,
- wherein the content percentage of the water-soluble cellulose-based compound is 15% by mass or more,
- the water-soluble cellulose-based compound is at least one selected from the group consisting of methylcellulose and hydroxypropyl methylcellulose,
- the compressive modulus at 25° C. is 5 kPa or greater,
- the hydrogel has self-repairability, and
- the weight average molecular weight of the water-soluble cellulose-based compound is 100000 to 200000.
Dependencies are inferred from the claim text.