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

High water-absorbing resin, preparation method thereof and application thereof

A technology of superabsorbent resin and aqueous solution, which is applied in the direction of fire prevention equipment, etc., can solve the problems of increased adhesion effect, expensive silane coupling agent, and difficult adhesion, etc., and achieve high fire extinguishing efficiency

Active Publication Date: 2019-11-12
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, we found that its adhesion is not good, especially on the surface that has been on fire, especially the vertical wall or the surface containing stainless steel (such as the surface of the oil tanker), because water vaporizes at high temperature, based on polyacrylic acid It is difficult for superabsorbent resin to adhere to its surface, so it cannot effectively cover, cool and cool down
[0004] Patent CN103483752B discloses a method of improving the poor adhesion between polymer fire extinguishing hydrogel and the surface by adding a water-based adhesion promoter of a silane coupling agent, but the silane coupling agent is expensive, which increases the production cost of the fire extinguishing agent
In Xi Yuqin's research, the adhesion was improved by adding a thickener (Xi Yuqin. Study on the flow characteristics and fire extinguishing performance of water after thickening), but the increase in the adhesion effect was not obvious enough

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
  • High water-absorbing resin, preparation method thereof and application thereof
  • High water-absorbing resin, preparation method thereof and application thereof
  • High water-absorbing resin, preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The present invention provides a kind of preparation method of superabsorbent resin, comprises the following steps:

[0031] A) mixing an aqueous solution of an ethylenically unsaturated monomer with an initiator to obtain an aqueous solution; mixing a hydrocarbon dispersion medium with a surfactant to obtain an oily solution;

[0032] B) After mixing the aqueous solution and the oily solution, stir to obtain a super absorbent resin; the rotational speed of the stirring is 500-800 rpm.

[0033] The invention mixes the aqueous solution of the ethylenically unsaturated monomer and the initiator to obtain the aqueous solution.

[0034] In some embodiments of the present invention, the ethylenically unsaturated monomer includes one or more of acrylic acid, acrylate, methacrylic acid, methacrylate and acrylamide.

[0035] In some embodiments of the present invention, the mass concentration of the aqueous solution of the ethylenically unsaturated monomer is 30-100%.

[0036...

Embodiment 1

[0068] Step 1: Prepare an aqueous solution: add 100 g (1.11 mol) of acrylic acid aqueous solution with a mass concentration of 80% to a 300 mL beaker, then add 0.03 g (0.000111 mol) of potassium persulfate, and mix at 25° C.

[0069] Step 2: Prepare an oily solution: Add 600 mL of n-hexane and 1.2 g of polyoxyethylene alkyl ether phosphate into a round bottom flask, and raise the temperature to 70°C.

[0070] The above aqueous solution was added to the above oily solution, and stirred at 60°C and 600 rpm for 20 minutes to obtain a super absorbent resin.

[0071] The superabsorbent resin that embodiment 1 obtains is carried out polarizing microscope analysis, and the result is as follows figure 1 shown. figure 1 It is a polarizing microscope picture of the superabsorbent resin prepared in Example 1 of the present invention. From figure 1 It can be seen that the superabsorbent resin particles are large particles with a rough surface obtained by aggregating a plurality of smal...

Embodiment 2

[0073] Step 1: Prepare an aqueous solution: add 95g (1.05mol) of acrylic acid aqueous solution with a mass concentration of 80% to a 300mL beaker, then add 0.09g (0.000333mol) of potassium persulfate, and mix at 30°C.

[0074] Step 2: Prepare an oily solution: Add 600 mL of n-heptane and 1.5 g of polyoxyethylene alkyl ether phosphate into a round bottom flask, and raise the temperature to 80°C.

[0075] The above aqueous solution was added to the above oily solution, stirred at 70° C. and 650 rpm for 30 min to obtain a super absorbent resin.

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
Login to View More

Abstract

The present invention relates to the technical field of polymer hydrogel water-based fire extinguishing agents, in particular to high water-absorbing resin, and a preparation method and an applicationthereof. The preparation method of the high water-absorbing resin includes the following steps: A) mixing an aqueous solution of an ethylenically unsaturated monomer and an initiator to obtain an aqueous solution, and mixing a hydrocarbon dispersion medium and a surfactant to obtaining an oily solution; B)mixing the aqueous solution and the oily solution, and conducting stirring to obtain the high water-absorbing resin. According to the present invention, the oily solution which contains the hydrocarbon dispersion medium and the surfactant is prepared, and the aqueous solution which containsthe initiator and the ethylenically unsaturated monomer is prepared, the two solutions are mixed to obtain the suspension, and polymerizing is carried out on the suspension. By controlling the stirring speed, the obtained high water-absorbing resin particles with rough surface can be ensured, and adhesion is facilitated after swelling. Therefore, the high water-absorbing resin prepared by the preparation method of the invention has better viscous property and is not easy to slip. A hydrogel fire extinguishing agent prepared by the high water-absorbing resin has better fire extinguishing effect.

Description

technical field [0001] The invention relates to the technical field of polymer gel water-based fire extinguishing agents, in particular to a superabsorbent resin, its preparation method and application. Background technique [0002] Water has the advantages of wide sources, low price, and strong fire extinguishing ability. Therefore, it is usually the most important fire extinguishing agent. [0003] Superabsorbent resin has strong water absorption and water retention, and its unique three-dimensional network structure can firmly bind water, so that it has a huge heat capacity. Water-absorbent resins are usually used in agricultural and garden materials such as sanitary materials, water-retaining materials, soil improvement materials, and animal excrement treatment materials. In recent years, relevant scientific researchers have also applied water-absorbent resins to the field of fire extinguishing. Because the water-absorbent resin is mixed with a certain proportion of wat...

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): C08F120/06A62D1/00C08J3/075
CPCA62D1/0064C08F120/06C08J3/075C08J2333/02
Inventor 许东华李双双石彤非呼微付志磊刘芳潘鸽杨雪赵志刚李思佳汤华清
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