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Antibacterial water absorption stable resin

A stable, resin-based technology, applied in the field of polymer chemical additives, can solve problems such as poor stability, achieve good water solubility, strong hygroscopicity, improve polarity and flexibility

Inactive Publication Date: 2019-08-30
陈习红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an antibacterial and water-absorbing stable resin for the problems of antibacterial and poor stability after water absorption of commonly used water-absorbing resins.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The preparation method of composite resin base material, comprises the steps:

[0031] (1) Wash the straw for 2-4 times, dry it, crush it through a 150-mesh sieve in a pulverizer, collect the sieved particles and add reagent A to mix at a mass ratio of 1:15-25, soak at room temperature for 44-48 hours, filter with suction, and take Wash the filter residue with water for 2 to 4 times, add 0.5mol / L nitric acid solution 3 to 6 times the mass of the filter residue, mix, keep warm at 90 to 100°C for 45 to 60 minutes, then filter with suction, take the filter cake and wash it with the mixed washing solution for 2 to 4 times, move to a 65-80°C oven to dry for 3-6 hours, and grind to obtain pretreated straw;

[0032] (2) Mix acrylic acid, acrylamide, pretreated straw, and NaOH solution with a mass fraction of 15% according to the mass ratio of 3:1:3~5:15, and stir magnetically at 400~700r / min for 30~55min to obtain a premix In a water bath at 35~55°C, take the premix and add a...

Embodiment 1

[0039] Reagent A: Mix 15% ammonia solution and sodium carbonate at a mass ratio of 3:1 to obtain Reagent A.

[0040] Reagent B: Mix methanol, acetone, and water at a volume ratio of 3:1:8 to obtain Reagent B.

[0041] Initiator: sodium persulfate.

[0042] Cross-linking agent: Mix N, N-methylenebisacrylamide and dicumyl peroxide at a mass ratio of 1:2 to obtain a cross-linking agent.

[0043] Emulsifier: Mix Tween-80 and sodium dodecylbenzenesulfonate at a mass ratio of 4:1 to obtain an emulsifier.

[0044] Auxiliary materials: Mix hydrogenated castor oil and fumed silica at a mass ratio of 3:1 to obtain auxiliary materials.

[0045] Flower extract: Take Motherwort, Radix Paeoniae Rubra, and water in a tissue grinder at a mass ratio of 5:1:10 to mash and homogenize to obtain a slurry. Take the slurry at a mass ratio of 1:12, and ethanol with a volume fraction of 60% Mix the solutions, reflux and extract at 70°C for 1 hour to obtain the extract, take triethyl citrate and ext...

Embodiment 2

[0055] Reagent A: Mix 15% ammonia solution and sodium carbonate at a mass ratio of 6:1 to obtain Reagent A.

[0056] Reagent B: Mix methanol, acetone, and water at a volume ratio of 6:1:8 to obtain Reagent B.

[0057] Initiator: potassium persulfate.

[0058] Cross-linking agent: Mix N, N-methylenebisacrylamide and dicumyl peroxide at a mass ratio of 1:4 to obtain a cross-linking agent.

[0059] Emulsifier: Mix Tween-80 and sodium dodecylbenzenesulfonate at a mass ratio of 8:1 to obtain an emulsifier.

[0060] Auxiliary materials: mix hydrogenated castor oil and fumed silica at a mass ratio of 6:1 to obtain auxiliary materials.

[0061] Flower extract: Take Motherwort, Radix Paeoniae Rubra, and water in a tissue grinder at a mass ratio of 5:3:10 to mash and homogenize to obtain a slurry, and take a slurry at a mass ratio of 1:18, with a volume fraction of 60% ethanol Mix the solutions, reflux and extract at 90°C for 3 hours to obtain the extract, take triethyl citrate and e...

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PUM

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Abstract

The invention relates to an antibacterial water absorption stable resin and belongs to the field of macromolecule chemical aids. The antibacterial water absorption stable resin is prepared from strawas a raw material, actions of molecules are enhanced through processes such as crushing, alkali immersion and acid immersion, the water absorption capacity is increased, meanwhile, due to freeze drying, a pore structure of the resin can be well maintained, and a very good retention function is achieved for water-soluble biologically extracted antibacterial components, so that the water absorptioncapacity can be stably increased, and the resin can be used as a carrier for taking an antibacterial effect into play; due to processes of ultrasonic degreasing, centrifugation, ultrasonic treatment and extraction, and the like on wheat bran and green walnut peel, very good antibacterial and sterilization functions can be achieved; meanwhile, herba leonuri and radix paeoniae rubra are smashed andsubjected to backflow extraction, so that the herba leonuri and the radix paeoniae rubra have good moisture absorption and can be well adsorbed by the resin material after being dried; and when the resin is adopted for water absorption, an antibacterial function of a macromolecule substance can be brought into play, and the antibacterial effect can be improved progressively. By adopting the resin,the problems that a conventional common water absorption resin is poor in antibacterial effect and poor in stability after water absorption can be solved.

Description

technical field [0001] The invention relates to the field of polymer chemical additives, in particular to an antibacterial and water-absorbing stable resin. Background technique [0002] Superabsorbent resin is a new type of functional polymer material, which can absorb and retain (even under pressure) hundreds or even thousands of times its own mass of pure water or tens of times of normal saline. Superabsorbent resins can be in various chemical forms, including substituted and unsubstituted natural and synthetic polymers, but they all have a three-dimensional network molecular structure, such as polyacrylic acid (sodium), starch acrylonitrile graft polymer hydrolysis products, carboxymethyl cellulose, cross-linked polyacrylates, polyvinyl alcohol, polyethylene oxide, sulfonated polystyrene, and polyacrylonitrile, among others. Today, superabsorbent resins have been used in agriculture (plant cultivation, desert transformation, etc.), personal care (disposable diapers, nur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L5/04C08L71/02C08L91/00C08K5/053C08K3/36C08K5/00C08K13/02C08F289/00
CPCC08F289/00C08L51/00C08L2205/035C08L5/04C08L71/02C08L91/00C08K5/053C08K3/36C08K5/0058C08K13/02
Inventor 陈习红
Owner 陈习红
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