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Amine oxide antibacterial super absorbent polymer (SAP)

A technology of superabsorbent resin and superabsorbent resin, which is applied in the field of functional polymer materials, can solve problems such as poor toxicological safety, reduced antibacterial properties, and impact on health, and achieve strong killing and inhibition capabilities, increased water absorption speed, and durability. The effect of increasing the saltiness

Active Publication Date: 2013-10-30
连宗旭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the cost of silver ions is high
Secondly, when close to the body, it may enter the human body through the skin. Because of its high affinity with the human body, it is easy to deposit in the body and affect health.
Moreover, silver ions are easy to turn into brown silver oxide, reducing antibacterial properties
At present, most of the antibacterial materials used in the market are still organic antibacterial agents. Organic antibacterial agents not only have poor heat resistance and stability, but also their decomposition products and volatiles may be harmful to the human body; and organic small molecules are easy to migrate and are toxicologically safe. poor sex

Method used

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  • Amine oxide antibacterial super absorbent polymer (SAP)
  • Amine oxide antibacterial super absorbent polymer (SAP)
  • Amine oxide antibacterial super absorbent polymer (SAP)

Examples

Experimental program
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Embodiment Construction

[0018] Add an appropriate amount of water to 1mol N,N-dimethylethanolamine as a solvent, raise the temperature to 65°C, slowly add 50ml of 30% hydrogen peroxide dropwise, control the rate of addition, and raise the temperature to 80°C for reflux for 6 hours after the addition is complete. The moisture was distilled off under reduced pressure, 6 mol of 1,4-dioxane was added as a solvent, and 1 mol of maleic anhydride was refluxed at 50° C. for 2 h. Remove the 1,4-dioxane solvent under reduced pressure, add 2kg of deionized water and 1KG of acrylic acid, and neutralize it with a 30% sodium hydroxide solution to form an acrylic acid solution with a pH of 6.5; in the solution Add 200g of acrylamide, 2.5g of N, N'-methylenebisacrylamide, and stir until completely dissolved; add 20 grams of sodium bisulfite solution with a mass fraction of 10% and superhydrogen sulfite with a mass fraction of 10% to the mixed solution. 20 grams of ammonium sulfate solution was stirred and reacted at...

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Abstract

The invention relates to an antibacterial super absorbent polymer (SAP) and a preparation method thereof. The SAP belongs to a functional polymer material. The product is prepared by copolymerizing and crosslinking an unsaturated amine oxide amphoteric ion monomer, an anionic monomer acrylic acid neutralized by alkali parts and an acrylamide non-ionic monomer in a redox initiation system by adopting N,N'-methylene bisacrylamide as a crosslinking agent. The SAP not only has excellent water absorption and retention properties and substantially improved saline water absorbing capacity but also has good antibacterial and bacteriostatic effects. The SAP is researched and developed specially for female hygienic products and cosmetics.

Description

technical field [0001] The invention relates to an antibacterial superabsorbent resin and a preparation method thereof, belonging to the field of functional polymer materials. Background technique [0002] Superabsorbent resin (SAP), also known as superabsorbent, water-retaining agent, and humectant, is a lightly cross-linked functional polymer material with high water-absorbing and water-retaining capacity. At present, SAP is widely used in sanitary materials for women and children, water-swellable sealing materials, packaging materials, building materials, water-retaining and drought-resistant materials in agriculture and forestry, etc. The largest market is in the field of baby diapers and women's sanitary napkins. The previous patents proposed the use of different raw materials and methods to prepare superabsorbent resins, including the improvement of resin washing rate and washing speed. However, SAP, which is widely used in industry, agriculture, forestry, and daily ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F222/22C08F220/56
Inventor 连宗旭
Owner 连宗旭
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