Preparation method of antibacterial super absorbent resin

A high water-absorbent resin and antibacterial technology, applied in the field of functional polymer chemical additives, can solve the problems of microbial odor, water-absorbent resin particles are easy to breed, and limit product application, achieving good antibacterial, good antibacterial effect, Molecular cross-linking uniform effect

Active Publication Date: 2015-03-11
SHANDONG NUOER BIOLOGICAL TECH
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary products have some defects, such as the surface of water-absorbent resin particles is easy to breed microorganisms and produce peculiar smell, which limits the application of the product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] A method for preparing an antibacterial superabsorbent resin, which consists of the following raw materials in parts by weight:

[0017] Acrylic acid 100-300, 50% sodium hydroxide solution 100-350, acryloyl morpholine 5-10, composite crosslinking agent 5-10, ultrafine silica 1-2, deionized water 100-300, initiator 0.5 -2, 25% aluminum sulfate 20-40, ethylene glycol 15-30, nano silver antibacterial agent 0.01-0.02; the preparation method is as follows:

[0018] (1) Add acrylic acid and deionized water to the reactor, add 50% sodium hydroxide solution to neutralize, add acryloyl morpholine, ultrafine silica and composite crosslinking agent; by introducing monomer acryloyl morpholine , giving the product antibacterial and bactericidal properties.

[0019] (2) Deoxygenate with nitrogen for 30 minutes, add an initiator to initiate the polymerization reaction at 20-30°C, and the temperature will no longer rise as the end of the reaction;

[0020] (3) The colloid is granulat...

Embodiment 1

[0029] Raw material composition and the parts by weight of each composition are:

[0030] Acrylic 180

[0031] 50% sodium hydroxide solution 195

[0032] Acryloylmorpholine 8

[0033] Composite crosslinking agent 8

[0034] Ultrafine Silica 1.5

[0035] Deionized water 210

[0036] Initiator 1.2

[0037] 1 Add the above-mentioned parts by weight of acrylic acid and deionized water into the reactor, add 50% sodium hydroxide solution for neutralization, add acryloyl morpholine, ultrafine silica and composite cross-linking agent, and pass high-purity nitrogen gas to remove oxygen.

[0038] 2. Add an initiator to polymerize at 25°C, and the temperature will no longer rise as the end of the reaction.

[0039] 3. After the reaction, the colloid obtained is granulated, dried and crushed to obtain water-absorbent resin particles.

[0040] 4. Add 24 parts of ethylene glycol (containing nano-silver antibacterial agent 0.015), 29 parts of 25% aluminum sulfate to the granules, mix...

Embodiment 2

[0042] Raw material composition and the parts by weight of each composition are:

[0043] Acrylic 160

[0044] 50% sodium hydroxide solution 185

[0045] Acryloylmorpholine 6

[0046] Composite crosslinking agent 6

[0047] Ultrafine silica 1

[0048] Deionized water 150

[0049] Initiator 0.6

[0050] 1. Add the above weight parts of acrylic acid and deionized water into the reactor, add 50% sodium hydroxide solution for neutralization, add acryloyl morpholine, ultrafine silica and composite crosslinking agent, and pass high-purity nitrogen gas Deoxygenation.

[0051] 2. Add an initiator to polymerize at 20°C, and the temperature will no longer rise as the end of the reaction.

[0052] 3. After the reaction, the colloid obtained is granulated, dried and crushed to obtain water-absorbent resin particles.

[0053] 4. Add 18 parts of ethylene glycol (including 0.01 nano-silver antibacterial agent) and 22 parts of 25% aluminum sulfate to the granules, mix them evenly, and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of antibacterial super absorbent resin. The preparation method comprises the following steps: firstly adding acrylic acid and deionized water into a reactor, adding 50% sodium hydroxide solution for neutralization, and adding acryloyl morpholine, ultrafine silicon dioxide and a complex cross-linking agent; then introducing nitrogen to remove oxygen for 30 min, adding an initiator to initiate a polymerization reaction at 20-30 DEG C, and regarding that the reaction is completed when the temperature does not rise; pelleting, drying and crushing gel to obtain water-absorbent resin particles; finally carrying out high-temperature processing at 120 DEG C on the resin particles through ethylene glycol, a nano-silver antibacterial and 25% aluminum sulfate for 2-5 hours to obtain the antibacterial super absorbent resin. The reparation method adopts a new antibacterial polymeric monomer, and the resin particles can reach a good antibacterial and sterilizing effect; a high low temperature compound type cross-linking agent is adopted, so that the cross-linking of molecules is more uniform; suspended silicon dioxide particles can guarantee good conductivity among the resin particles. No azo initiator is used, so that the antibacterial super absorbent resin is free of azo substance residues.

Description

technical field [0001] The invention relates to the field of functional polymer chemical additives, in particular to a preparation method of an antibacterial superabsorbent resin. Background technique [0002] At present, in the production of super absorbent resin in the world, polyacrylic acid series account for 80%. It is widely used in disposable diapers and hygiene products because of its super water absorption and water retention functions, and this application accounts for more than 70% of SAP demand. But ordinary products have some defects, such as the surface of water-absorbing resin particles is easy to breed microorganisms and produce peculiar smell, which limits the application of the product. Contents of the invention [0003] The purpose of the present invention is to aim at the defects of the prior art, to provide a preparation method of antibacterial superabsorbent resin that can significantly improve the antibacterial ability, improve the conductivity betw...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/02C08K13/02C08K3/36C08K5/053C08K3/08C08K3/30C08K5/1515C08F220/06C08F220/58C08F2/44
Inventor 荣敏杰许永升于庆华
Owner SHANDONG NUOER BIOLOGICAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap