High-molecular hydrogel fire extinguishing agent and preparation method thereof

A technology of polymer hydrogel and fire extinguishing agent, which is used in fire protection equipment and other directions, can solve the problem of unsatisfactory adhesion of polymer fire extinguishing hydrogel, poor surface adhesion of polymer fire extinguishing hydrogel, and inability to effectively cover , cooling and cooling problems, to achieve the effect of excellent fire extinguishing efficiency, improved adhesion and excellent adhesion

Inactive Publication Date: 2019-05-28
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are also some disadvantages in the fire extinguishing hydrogel based on polyacrylic superabsorbent resin: when the surface that has caught fire, especially the vertical wall, the surface containing stainless steel (such as the surface of the oil tanker), due to water Vaporized at high temperature, polyacrylic acid-based superabsorbent resin is difficult to adhere to its surface, so it cannot effectively cover, cool and cool down
[0004] Chinese patent

Method used

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  • High-molecular hydrogel fire extinguishing agent and preparation method thereof
  • High-molecular hydrogel fire extinguishing agent and preparation method thereof
  • High-molecular hydrogel fire extinguishing agent and preparation method thereof

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preparation example Construction

[0029] The present invention also provides a kind of preparation method of above-mentioned polymer hydrogel fire extinguishing agent, comprises the following steps:

[0030] Mix superabsorbent resin, curdlan gum and water to obtain polymer hydrogel fire extinguishing agent.

[0031] The contents and components of the superabsorbent resin, curdlan and water are the same as above, and will not be repeated here.

[0032] In an embodiment of the present invention, the mixing temperature is normal temperature, and the mixing time is 20-120s. In some embodiments of the present invention, the mixing time is 20s, 50s, 80s or 100s.

[0033] The invention provides a polymer hydrogel fire extinguishing agent, which comprises: 0.2-1wt% of superabsorbent resin; 0.1-1wt% of curdlan; and the rest of water. In order to enhance the wall adhesion of the fire extinguishing agent, prevent the short residence time on the surface of the burning object and the protected object, the problem that th...

Embodiment 1

[0039] A polymer hydrogel fire extinguishing agent, comprising:

[0040] Polyacrylic superabsorbent resin Formosa Plastics BC283HHN 0.3wt%;

[0041] Curdlan gum 0.5wt%;

[0042] remaining water;

[0043] The above-mentioned polyacrylic superabsorbent resin Formosa Plastics BC283HHN, curdlan and water were mixed at room temperature for 20 seconds to obtain a polymer hydrogel fire extinguishing agent. The obtained polymer hydrogel fire extinguishing agent was tested, and the results showed that the polymer hydrogel fire extinguishing agent of this embodiment was sprayed smoothly.

Embodiment 2

[0045] A polymer hydrogel fire extinguishing agent, comprising:

[0046] Polyacrylic superabsorbent resin Formosa Plastics BC283HHN 0.4wt%;

[0047] Curdlan gum 0.5wt%;

[0048] remaining water;

[0049] The above-mentioned polyacrylic superabsorbent resin Formosa Plastics BC388SDA, curdlan and water were mixed for 50 seconds at room temperature to obtain a polymer hydrogel fire extinguishing agent. The obtained polymer hydrogel fire extinguishing agent was tested, and the results showed that the polymer hydrogel fire extinguishing agent of this embodiment was sprayed smoothly.

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Abstract

The invention provides a high-molecular hydrogel fire extinguishing agent and a preparation method thereof. The high-molecular hydrogel fire extinguishing agent is prepared from the compositions in percentage by weight: 0.2-1% of super absorbent resin, 0.1-1% of curdlan, and the balance of water. In order to enhancing wall adhesion performance of the fire extinguishing agent, and solving the problems that the retention time of the fire extinguishing agent on the surfaces of burning objects and the surfaces of protected objects is too short, and consequently the fire extinguishing agent cannotbe effectively utilized to extinguishand retard firein time, the curdlan is creatively added, the curdlan can obviously improve the adhesiveness of the high-molecular hydrogel fire extinguishing agentand plays an important role in improving the fire extinguishing efficiency of the high-molecular hydrogel fire extinguishing agent, the curdlan acts synergistically with other components, thus the high-molecular hydrogel fire extinguishing agent has good adhesion on vertical wall spaces and the surfaces containing stainless steel, and the fire extinguishing efficiency is good.

Description

technical field [0001] The invention relates to the technical field of polymer fire extinguishing materials, in particular to a polymer hydrogel fire extinguishing agent and a preparation method thereof. Background technique [0002] Water remains by far the most commonly used fire extinguishing agent. Water has the advantages of wide sources, low price, and strong fire extinguishing ability, but it has high fluidity, and it will be lost when it is sprayed out. The utilization rate is low, and it is not suitable for water-scarce areas. [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. Polymer hydrogels based on polyacrylic superabsorbent resins have been widely used in the field of fire extinguishing. However, there are also some disadvantages in the fire extinguishing hydrogel based on polyacrylic superabsorbent resin: when the surfac...

Claims

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Application Information

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IPC IPC(8): A62D1/00
Inventor 许东华李双双呼微马蕊石彤非李思佳汤华清王晓伟付志磊符波潘鸽
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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