Preparation method of composite hydrogel, composite hydrogel and application of composite hydrogel
The invention discloses a preparation method of composite hydrogel. The preparation method comprises the following steps: A, preparation of amidoximated polyacrylonitrile: dissolving polyacrylonitrile in an organic solvent for amidoxime modification treatment to obtain amidoximated polyacrylonitrile...
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| creator | LI LE DAI ZHONGRAN LIU LING ZHU BINGYU TANG SHUANGYANG |
| description | The invention discloses a preparation method of composite hydrogel. The preparation method comprises the following steps: A, preparation of amidoximated polyacrylonitrile: dissolving polyacrylonitrile in an organic solvent for amidoxime modification treatment to obtain amidoximated polyacrylonitrile; B, washing the amidoximated polyacrylonitrile obtained in the step A with water, and conducting drying; C, mixing sodium alginate with the amidoximated polyacrylonitrile prepared in the step B, adding water, carrying out uniform mixing under stirring via a stirrer, dropwise adding the formed mixture into a calcium chloride solution, and conducting standing for 8-20 hours to obtain the composite hydrogel; and D, washing the composite hydrogel obtained in the step C with water, and carrying out freeze-drying. The preparation method provided by the invention is simple and convenient and low in cost; and the prepared finished product has the advantages of high uranium adsorption efficiency, strong uranium selective a |
| format | Patent |
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The preparation method comprises the following steps: A, preparation of amidoximated polyacrylonitrile: dissolving polyacrylonitrile in an organic solvent for amidoxime modification treatment to obtain amidoximated polyacrylonitrile; B, washing the amidoximated polyacrylonitrile obtained in the step A with water, and conducting drying; C, mixing sodium alginate with the amidoximated polyacrylonitrile prepared in the step B, adding water, carrying out uniform mixing under stirring via a stirrer, dropwise adding the formed mixture into a calcium chloride solution, and conducting standing for 8-20 hours to obtain the composite hydrogel; and D, washing the composite hydrogel obtained in the step C with water, and carrying out freeze-drying. 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The preparation method comprises the following steps: A, preparation of amidoximated polyacrylonitrile: dissolving polyacrylonitrile in an organic solvent for amidoxime modification treatment to obtain amidoximated polyacrylonitrile; B, washing the amidoximated polyacrylonitrile obtained in the step A with water, and conducting drying; C, mixing sodium alginate with the amidoximated polyacrylonitrile prepared in the step B, adding water, carrying out uniform mixing under stirring via a stirrer, dropwise adding the formed mixture into a calcium chloride solution, and conducting standing for 8-20 hours to obtain the composite hydrogel; and D, washing the composite hydrogel obtained in the step C with water, and carrying out freeze-drying. The preparation method provided by the invention is simple and convenient and low in cost; and the prepared finished product has the advantages of high uranium adsorption efficiency, strong uranium selective a</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY DECONTAMINATION ARRANGEMENTS THEREFOR NUCLEAR ENGINEERING NUCLEAR PHYSICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT THEIR RELEVANT APPARATUS TRANSPORTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL |
| title | Preparation method of composite hydrogel, composite hydrogel and application of composite hydrogel |
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