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Water absorption material and use

A technology of water-absorbing material and aqueous solution, applied in decorative arts, coated paper base paper, special art surface treatment, etc., can solve the problem of low adsorption and desalination efficiency, and achieve the effect of simple use method, good effect and fast absorption speed.

Inactive Publication Date: 2008-11-19
LANZHOU UNIVERSITY
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Problems solved by technology

Through the absorption of the adsorption material, the salt in the cultural relics is taken out in the form of a salt solution and enriched on the adsorption material. Due to the limitation of the material itself, its adsorption and desalination efficiency is low, and the desalination process often needs to be repeated many times, even more than ten times. Second-rate

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  • Water absorption material and use

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Embodiment Construction

[0026] Examples of the invention are provided below.

[0027] 1: Preparation of starch grafted acrylamide resin

[0028] ① Gelatinization of starch

[0029] 5.00 grams of starch were soaked in 40 ml of distilled water for 30 minutes. Then it is heated to 80-85° C. for gelatinization under the protection of nitrogen, and the temperature is controlled for 30 minutes during the treatment. The starch polymer chain is opened through gelatinization, so that the starch can be easily contacted with the initiator, and then the free radical initiation reaction can be fully carried out.

[0030] ②Graft polymerization reaction

[0031] Cool the gelatinized starch to 50-60°C, add 0.590-0.610 grams of potassium persulfate and 0.0290-0.0310 grams of sodium sulfite solid in 40 ml of aqueous solution, and then add 10 ml of water. After initiating at 50-60°C for 15 minutes, add 280ml of aqueous solution in which 18.5-20.5 grams of acrylamide and 0.0690-0.0710 grams of cross-linking agent N,...

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Abstract

The invention relates to a method for preparing a water absorbent material, a special application of the water absorbent material and a special material for the special application. The water absorbent material is a water absorbent resin; the preparation method comprises the following steps that: first, amylum is treated by gelatinization, then the amylum which is subject to the gelatinization treatment and acrylamide have graft polymerization reaction; after the polymerization is finished, a reaction system is subject to saponification reaction; after the saponification reaction is finished, the reaction system is subject to solid-liquid separation; and the separated solid is treated by drying and pulverization, thereby obtaining the water absorbent material. The special application of the water absorbent material refers to restoration and protection of cultural relics by the prepared water absorbent material; and the special material is a load of the water absorbent on a carrier.

Description

technical field [0001] The present invention relates to the preparation of water-absorbing material and the special application of this water-absorbing material and special materials for this special application. The water-absorbing material of the present invention is a water-absorbing resin, and the special application of the water-absorbing material in the present invention refers to the preparation of the water-absorbing material for restoration and protection of cultural relics. Background technique [0002] The emergence of superabsorbent resins began in 1961 when American C.R. Russell et al. began to study starch-grafted acrylonitrile, followed by G.F.Fanta et al. The water-absorbent resin was initially successfully industrialized at Henkel. Since then, countries around the world have conducted a lot of research on the types, properties, manufacturing methods, and application fields of superabsorbents, among which the United States and Japan have achieved the greates...

Claims

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Application Information

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IPC IPC(8): C08F251/00C08F8/00C09K3/00B44D7/00B44D5/00D06N3/00D21H19/78
Inventor 马建泰康红卫李茸苏伯民陈港泉樊再轩
Owner LANZHOU UNIVERSITY
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