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Insulation anti-corrosion fire extinguishing agent and preparation method thereof

A technology of fire extinguishing agent and organic solvent, which is applied in the field of insulating and anti-corrosion fire extinguishing agent and its preparation, can solve problems such as corrosion of electronic components, and achieve the effects of improving carbon formation rate, excellent insulation performance, and inhibiting reburning

Active Publication Date: 2022-03-01
HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, Novec1230 will produce a small amount of HF under the action of moisture, which will cause serious corrosion to electronic components

Method used

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  • Insulation anti-corrosion fire extinguishing agent and preparation method thereof
  • Insulation anti-corrosion fire extinguishing agent and preparation method thereof
  • Insulation anti-corrosion fire extinguishing agent and preparation method thereof

Examples

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preparation example Construction

[0035] The present invention also provides a preparation method of the insulating and anti-corrosion fire extinguishing agent described in the above technical solution, comprising: weighing Novec 1230 fire extinguishing agent, 1,1,2,2,3,3,4-heptafluorocyclopenta alkanes and metal organic frameworks NH 2 -MIL-125(Ti), then add 1,1,2,2,3,3,4-heptafluorocyclopentane to Novec 1230, stir well; then add NH 2 -MIL-125(Ti), let stand to make NH 2 -MIL-125(Ti) absorbs moisture and HF in the compound to obtain the insulating anticorrosion fire extinguishing agent.

[0036] The NH 2 - The preparation method of MIL-125(Ti) includes: adding the organic ligand 2-aminoterephthalic acid into the organic solvent, stirring to make it completely dissolved; then adding acetic acid and tetraisopropyl titanate, stirring evenly, Pour the reaction solution into a polytetrafluoroethylene reactor and put it in an oven, keep it warm at a preset temperature for a preset time; then take out the reactor...

Embodiment 1

[0042] An insulating anticorrosion fire extinguishing agent, comprising: 100 parts of Novec 1230 fire extinguishing agent, 15 parts of 1,1,2,2,3,3,4-heptafluorocyclopentane and metal organic framework NH 2 -MIL-125(Ti) 10 parts. see figure 1 Shown, prepared by the following method:

[0043] According to the above ratio, add HFC into Novec 1230, stir evenly to obtain Novec 1230 / HFC. Adding NH to Novec1230 / HFC 2 -MIL-125(Ti), let stand for a while until N 2 H-MIL-125-Ti absorbs moisture and HF in Novec 1230 / HFC to obtain the required anti-corrosion composite fire extinguishing agent Novec1230 / HFC-MOF.

[0044] Among them, NH 2 -The synthesis method of MIL-125(Ti) is as follows:

[0045] First, the organic ligand 6mmol of NH 2 -BDC (2-aminoterephthalic acid) was added into a mixed solvent of methanol (25ml) and DMF (25ml), and stirred for several minutes to completely dissolve it. Then, add 3mmol of HAc (10ml) and Ti[OCH(CH 3 ) 2 ] 4 And keep stirring. The completely ...

Embodiment 2-5 and comparative example 1

[0058] An insulating anticorrosion fire extinguishing agent, compared with Example 1, the difference is that Novec 1230 fire extinguishing agent, 1,1,2,2,3,3,4-heptafluorocyclopentane and metal organic framework NH 2 -The content of MIL-125(Ti) is shown in Table 1. Others are substantially the same as in Embodiment 1, and will not be repeated here.

[0059] Preparation conditions and performance test results of table 2 embodiment 2-5 and comparative example 1

[0060]

[0061] It can be seen from Table 2 that after adding HFC, the fire extinguishing time decreases, and with the increase of HFC content, the fire extinguishing time first decreases and then increases. When the HFC content is 15%, the fire extinguishing time is the smallest; Has little effect. No NH added 2 -The corrosion mass loss of MIL-125(Ti) reaches 0.35g, with NH 2 -With the increase of MIL-125(Ti) content, the mass loss gradually decreased; and with the increase of NH 2 -The addition of MIL-125(Ti) ...

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Abstract

The invention provides a novel insulating anticorrosion fire extinguishing agent and a preparation method thereof. The new insulating and anti-corrosion fire extinguishing agent includes Novec 1230 fire extinguishing agent, 1,1,2,2,3,3,4‑heptafluorocyclopentane and metal organic framework N 2 H-MIL-125(Ti). The choice of heptafluorocyclopentane as a coolant with strong cooling capacity can ensure the rapid extinguishment of lithium-ion battery fires, achieve cooling effects, and prevent lithium-ion batteries from burning again. Through N with two pore structures 2 The adsorption of H‑MIL‑125(Ti) can effectively adsorb water and HF in the fire extinguishing agent, thereby significantly improving the corrosion resistance of the fire extinguishing agent. The novel insulating and anti-corrosion fire extinguishing agent provided by the invention has excellent fire extinguishing ability and anti-corrosion effect, and is expected to solve the fire safety problem in large-scale use of lithium-ion batteries.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing agents, in particular to an insulating anti-corrosion fire extinguishing agent and a preparation method thereof. Background technique [0002] Energy storage technology is one of the important supporting technologies for the development of smart grid, renewable energy access, distributed power generation, micro-grid and electric vehicles. Lithium-ion battery is a representative of electrochemical energy storage technology, and has become the fastest-growing energy storage technology in the field of electric energy storage due to its advantages of flexibility and speed. Due to the inherent safety issues of lithium-ion batteries, their large-scale application in the field of energy storage has encountered a bottleneck. During long-term use and storage, lithium-ion batteries will inevitably face damage such as extrusion, high temperature, overcharge, short circuit, etc., which will cause ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/00H01M10/42
CPCA62D1/005H01M10/42Y02E60/10
Inventor 曹元成张炜鑫颜涛程时杰赵勇刚袁志超
Owner HUAZHONG UNIV OF SCI & TECH
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