Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of antibacterial super absorbent resin

A technology of super absorbent resin and antibacterial agent, applied in the field of antibacterial resin, can solve the problems of complicated preparation process, poor antibacterial, poor gel strength and the like

Inactive Publication Date: 2020-09-18
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI +2
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process aims to solve the current problems of superabsorbent resins that irritate the skin, have poor antibacterial properties, and have poor gel strength.
However, its disadvantages are mainly manifested in the cumbersome preparation process, and the antibacterial rate of the obtained antibacterial composite superabsorbent resin is still lower than 70%, and there is room for further improvement.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of antibacterial super absorbent resin
  • Preparation method of antibacterial super absorbent resin
  • Preparation method of antibacterial super absorbent resin

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The invention provides a preparation method of an antibacterial superabsorbent resin, comprising the following steps:

[0027] Under the condition of stirring, atomize and disperse the antibacterial agent aqueous dispersion on the surface of the superabsorbent resin beads to obtain the antibacterial superabsorbent resin;

[0028] The antibacterial agent in the aqueous dispersion of the antibacterial agent is selected from one or more of chitosan, aloe freeze-dried powder, polyhexanide hydrochloride, nano-silver, nano-zinc oxide and quaternary ammonium salt;

[0029] The superabsorbent resin beads are selected from partially hydrolyzed polyacrylamide and / or sodium polyacrylate.

[0030] The present invention uses partially hydrolyzed polyacrylamide and / or sodium polyacrylate as the superabsorbent resin matrix, combines their high water absorption characteristics, and through a simple mixed adsorption process, utilizes the adsorption of the superabsorbent resin to the wat...

Embodiment 1

[0045] The preparation of embodiment 1 chitosan composite antibacterial superabsorbent resin:

[0046] Accurately measure 100g of chitosan aqueous dispersion with a concentration of 5.0%, put it into the storage tank of the high-pressure pump, set the pressure of the high-pressure pump to 0.5MPa, and spray and disperse evenly in 10 batches at a stirring speed of 50 rpm The surface of 45g of sodium polyacrylate beads was mixed evenly, and the prepared chitosan composite antibacterial superabsorbent resin was collected and dried in a 50°C oven for 24 hours to obtain an antibacterial superabsorbent resin.

[0047] Refer to GB / T 20944.3-2008 and GB / T 22875-2018 to evaluate its antibacterial performance and absorption performance respectively. The test results are shown in Table 1. figure 2 Bacteriostatic experiment of the antibacterial superabsorbent resin prepared in Example 1 of the present invention on Escherichia coli.

Embodiment 2

[0048] Embodiment 2 Preparation of aloe freeze-dried powder composite antibacterial superabsorbent resin:

[0049] Accurately measure 100g of aloe vera freeze-dried powder aqueous dispersion with a concentration of 50.0%, put it into the storage tank of the high-pressure pump, set the pressure of the high-pressure pump to 1.0MPa, and spray and disperse evenly in 20 batches at a stirring speed of 100 rpm The surface of 50g sodium polyacrylate beads per minute was stirred and evenly mixed, and the prepared aloe freeze-dried powder composite antibacterial superabsorbent resin was collected and placed in a 50°C oven for drying treatment for 24 hours to obtain an antibacterial superabsorbent resin.

[0050] Refer to GB / T 20944.3-2008 and GB / T 22875-2018 to evaluate its antibacterial performance and absorption performance respectively. The test results are shown in Table 1.

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
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of antibacterial super absorbent resin. The preparation method comprises the following steps: under stirring conditions, atomizing and dispersing an antibacterial agent aqueous dispersion on the surfaces of super absorbent resin beads to obtain antibacterial super absorbent resin, wherein an antibacterial agent in the antibacterial agent aqueous dispersion is selected from one or more of chitosan, aloe freeze-dried powder, polyhexamethylene guanidine hydrochloride, nano-silver, nano-zinc oxide and quaternary ammonium salt; and the super absorbent resin beads are selected from partially hydrolyzed polyacrylamide and / or sodium polyacrylate. The partially hydrolyzed polyacrylamide and / or sodium polyacrylate are / is used as a super absorbent resin matrix, and the antibacterial super absorbent resin with excellent antibacterial performance is prepared by combining the super absorbent resin beads and the antibacterial agent, combining the super absorbent characteristics of the super absorbent resin beads, and utilizing the adsorption effect of the super absorbent resin on a water phase system through a simple mixing adsorption process to realizeadsorption compounding of the antibacterial agent in the super absorbent resin beads. The antibacterial rate of the antibacterial super absorbent resin on escherichia coli and staphylococcus aureus is up to 99%.

Description

technical field [0001] The invention belongs to the technical field of antibacterial resins, in particular to a preparation method of antibacterial superabsorbent resins. Background technique [0002] Super Absorbent Polymer (SAP) for disposable hygiene products is mainly composed of polyacrylic acid synthetic polymers, which are polymerized and moderately cross-linked by acrylic acid and acrylamide monomers containing strong hydrophilic groups to form a three-dimensional network. Shaped structure, it can quickly absorb water ten times or even thousands times its own mass through hydration to form a gel. This kind of material has excellent properties such as large water absorption capacity, fast water absorption rate, strong water retention capacity, non-toxic and tasteless, which are incomparable to ordinary materials. However, disposable sanitary pads or diapers will absorb a large amount of human body fluids and urine when used, and they are easy to breed bacteria in a h...

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
IPC IPC(8): C08J3/12C08L33/02C08L33/26
CPCC08J3/12C08J3/126C08J3/128C08J2333/02C08J2333/26
Inventor 王宝龙姬相玲许玖多陈洪祥杨旭沙迪石凯于许杰李承志马兰波
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com