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Sodium acrylate super absorbent resin and preparation method thereof

A technology of superabsorbent resin and sodium acrylate, which is applied in the field of environmental protection materials, can solve problems such as poor salt resistance, low strength, and insufficient water absorption rate, and achieve the goal of increasing strength, improving salt resistance, and increasing the rate of water absorption or normal saline Effect

Inactive Publication Date: 2018-10-16
贵州永合益环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide a sodium acrylate superabsorbent resin and its preparation method, to solve the technical problems of sodium acrylate superabsorbent resin poor salt resistance, water absorption rate is not fast enough, low strength after water absorption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] raw material:

[0024] Sodium acrylate 100kg, carbon nanotube 8kg, bamboo charcoal fiber 12kg, initiator 2kg, crosslinking agent 2kg, cyclodextrin 4kg, emulsifying dispersant 16kg.

[0025] The initiator is tert-butyl peroxybenzoate.

[0026] The emulsifying dispersant is prepared by mixing polyoxyethylene sec-octylphenol ether, fatty alcohol ethylene oxide condensate and sodium succinate sulfonate in a weight ratio of 40:20:6.

[0027] The crosslinking agent is diallyl phthalate.

[0028] Preparation:

[0029] (1) Grinding: The grinding machine used for grinding is purchased on the market. It is required that the grinding effect is good, and the raw materials can be ground to the micron level. Sodium acrylate, cyclodextrin, bamboo charcoal fiber and carbon nanotubes are ground into Micropowder with a particle size of 12 μm; within this particle size range, the micropowder has good rigidity and is easy to process. If the particle size is too large, the aspect ratio (...

Embodiment 2

[0035] raw material:

[0036] Sodium acrylate 100kg, carbon nanotube 16kg, bamboo charcoal fiber 18kg, initiator 6kg, crosslinking agent 5kg, cyclodextrin 8kg, emulsifying dispersant 24kg.

[0037] The initiator is tert-butyl peroxybenzoate.

[0038] The emulsifying dispersant is prepared by mixing polyoxyethylene sec-octylphenol ether, fatty alcohol ethylene oxide condensate and sodium succinate sulfonate in a weight ratio of 60:30:10.

[0039] The crosslinking agent is p-benzoquinone dioxime.

[0040] Preparation:

[0041] (1) Grinding: Grind sodium acrylate, cyclodextrin, bamboo charcoal fiber and carbon nanotubes into micropowder with a particle size of 20 μm; If the particle size is too large, the aspect ratio (diameter / length ratio) of the material will decrease, and the rigidity will deteriorate, and the strength of the subsequent processed product will also decrease. However, if the particle size is too small, the processing will be more difficult, and the rigidity ...

Embodiment 3

[0047] raw material:

[0048] Sodium acrylate 100kg, carbon nanotube 12kg, bamboo charcoal fiber 15kg, initiator 4kg, crosslinking agent 3.5kg, cyclodextrin 6kg, emulsifying dispersant 20kg.

[0049] The initiator is tert-butyl peroxybenzoate.

[0050] The emulsifying dispersant is prepared by mixing polyoxyethylene sec-octylphenol ether, fatty alcohol ethylene oxide condensate and sodium succinate sulfonate in a weight ratio of 50:25:8.

[0051] The crosslinking agent is diallyl phthalate.

[0052] Preparation:

[0053] (1) Grind sodium acrylate, cyclodextrin, bamboo charcoal fiber and carbon nanotubes into micropowders with a particle size of 16 μm respectively; within this particle size range, the micropowders have better rigidity and are easy to process, but the particle size is too large. If the aspect ratio (diameter / length ratio) of the material decreases, the rigidity will deteriorate, and the strength of the subsequent processed product will also deteriorate. Howev...

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Abstract

The invention belongs to the technical field of environment-friendly materials and particularly relates to sodium acrylate super absorbent resin and a preparation method thereof. The sodium acrylate super absorbent resin is prepared from the following raw materials in parts by weight: 100 parts of sodium acrylate, 8 to 16 parts of carbon nanotubes, 12 to 18 parts of bamboo carbon fibers, 2 to 6 parts of initiator, 2 to 5 parts of cross-linking agent, 4 to 8 parts of cyclodextrin and 16 to 24 parts of emulsion dispersant. According to the preparation method disclosed by the invention, a stablestructural system is obtained by forming an interspersed network structure formed by using the bamboo carbon fibers, the cyclodextrin and the sodium acrylate in a polymerization network formed by thesodium acrylate and the carbon nanotubes, so that the strength of the sodium acrylate super absorbent resin is greatly improved; in addition, the composite super absorbent resin is enabled to have anabundant pore structure, so that the water absorption rate or saline rate is favorably improved and the salt tolerance is improved.

Description

technical field [0001] The invention relates to the technical field of environmental protection materials, in particular to a sodium acrylate superabsorbent resin and a preparation method thereof. Background technique [0002] Superabsorbent resin is a functional polymer material that can absorb and retain hundreds to thousands of times its own mass, and is widely used in fields such as agriculture, forestry, industry, construction and sanitation. Sodium acrylate superabsorbent resin is an important synthetic superabsorbent resin. It has the advantages of simple synthesis process, high water absorption ratio, good safety performance, stable product quality and no corruption, and has been widely studied and applied. At present, nanocompositing sodium acrylate superabsorbent resin with various nanomaterials is an important modification method, mainly using inorganic nanomaterials such as layered clay, metal / non-metal oxide nanomaterials, and carbon nanotubes. . Nanocomposite...

Claims

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Application Information

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IPC IPC(8): C08L33/02C08L5/16C08K3/04C08K7/06
CPCC08L33/02C08L2205/04C08L5/16C08K3/041C08K7/06
Inventor 不公告发明人
Owner 贵州永合益环保科技有限公司