Method for preparing natural polymer water-absorbing material by taking starch cellulose factory slag as raw material

A starch cellulose and natural polymer technology, applied in the field of preparing natural polymer water-absorbing materials, can solve the problems of complex production process, high production cost, poor use effect, etc., achieve low production cost, reduce sewage treatment, and simplify production process Effect

Inactive Publication Date: 2021-07-09
孙晋琳
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention proposes a method for preparing natural polymer water-absorbing materials by using starch cellulose slag as raw material, mainly to solve the problems in the prior art such as complex production process, high production cost, serious pollution and poor use effect

Method used

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  • Method for preparing natural polymer water-absorbing material by taking starch cellulose factory slag as raw material

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preparation example Construction

[0036] A preparation method of a natural polymer water-absorbing material using starch cellulose residue as a raw material, comprising the following steps:

[0037] Step (1), according to the mass ratio of starch cellulose slag: SP: SA: SB: SM: bentonite: G11: sodium hydroxide = 200: 10: 300: 200: 2: 3: 20: 100, accurately weigh the ratio The amount of each component is ready for use;

[0038] Step (2), adding accurately weighed starch cellulose slag into distilled water of 5 times the mass and mixing, stirring evenly, and leaving it to stand for use;

[0039] Step (3), adding accurately weighed SP into 50 times the mass of distilled water for mixing, fully stirring and dissolving under water bath conditions, until no new precipitation is produced, and then adding it to the raw material mixture in step (2), Stir again evenly;

[0040] Step (4), adding accurately weighed SA to the mixed solution in step (3), fully stirring;

[0041]In step (5), the accurately weighed SB and ...

Embodiment

[0055] 1. Use an electronic balance to weigh 2.0g of starch cellulose slag, pour all of it into a 100ml glass beaker, use a 30ml graduated cylinder to measure 10ml of distilled water, add it to the beaker, stir evenly with a glass rod, and let it stand;

[0056] 2. Weigh 0.1g SP into another beaker, add 5ml of distilled water, place the bottom of the beaker in a water bath, stir with a glass rod until the drug dissolves and no new precipitates are formed, add the raw materials to the beaker with uniform stirring, and use it again Stir the glass rod evenly;

[0057] 3. Measure 3ml SA, add it to the raw material beaker, stir well;

[0058] 4. Weigh 2g of SB and 0.02g of SM into a beaker, add 10ml of distilled water, place the bottom of the beaker in a water bath, stir with a glass rod until the drug dissolves and no new precipitation occurs, add it to the raw material beaker, and use glass again Stir the stick evenly;

[0059] 5. Weigh 0.03g of bentonite and 0.2g of G11 into a...

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Abstract

The invention provides a method for preparing a natural polymer water-absorbing material by using starch cellulose factory slag as a raw material, wherein the water-absorbing material comprises the components in parts by mass: 200 parts of starch cellulose factory slag, 10 parts of SP, 300 parts of SA, 200 parts of SB, 2 parts of SM, 3 parts of bentonite, 20 parts of G11 and 100 parts of sodium hydroxide; the developed polymer water-absorbing material has the characteristics of degradability, high water absorption and high water retention; and the water absorption rate of the prepared product can reach up to 120 g / g. The preparation process is simple, a closed system is not needed, N2 charging and O2 discharging are not needed, the preparation cost is low, and the problem of water washing sewage treatment in the preparation process is solved.

Description

technical field [0001] The invention relates to the technical field of polymer water-absorbing materials, in particular to a method for preparing natural polymer water-absorbing materials by using starch cellulose slag as a raw material. Background technique [0002] Since the industrialization of superabsorbent resins, the output has grown rapidly due to the growing market demand. At present, the research of water-absorbent resins focuses on three aspects: water absorption speed, water absorption rate and gel strength. Water absorption can be improved by increasing the shape of the resin particles and increasing the specific surface area. Absorbing composites is a new way to improve the strength of soft gels to absorb synthetic superabsorbents. By examining under an electron microscope, Lin Jianming et al. found that bentonite completely exists in the resin survey network, which improves the hardness of the gel. Japan's Mitsubishi Corporation mixed acrylic flour and PVC p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/00C08F251/02C08F212/08C08F220/18
CPCC08F251/00C08F251/02C08F212/08C08F220/1818
Inventor 孙晋琳
Owner 孙晋琳
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