High-temperature phase-transitional temperature-sensitive fire-extinguishing gel and preparation method thereof

A phase transition and gel technology, which is applied in the direction of fire prevention equipment, etc., can solve problems such as impact and environmental pollution, and achieve the effects of improving fire extinguishing performance, high phase transition temperature, and fast transition speed
CN102188781BInactive Publication Date: 2012-10-31SHANGHAI UNIV +1
3 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI UNIV
Publication Date
2012-10-31
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a high-temperature phase-transitional temperature-sensitive fire-extinguishing gel and a preparation method thereof. Through the physical crosslinking between polyacid with a hydrophilic backbone structure and polyamine with a hydrophobic backbone structure, the fire-extinguishing gel is in a soluble state at a low temperature and in a gel state at a high temperature. Thefire-extinguishing agent is a low-viscosity aqueous solution at normal temperature; the viscosity is gradually increased as the temperature rises, and then the aquagel is formed and adhered on the surface of burning objects, thus the effect of fire-extinguishing is achieved and the fire behavior is blocked from spreading; after the temperature of the gel is lowered to a certain temperature, the gel is returned to the state of liquid, the residue can be cleaned by using water for flushing, thereby being efficient and environment-friendly. The fire-extinguishing agent provided by the invention has low viscosity, can be spouted by using the traditional squirt gun; meanwhile, other elements, such as fire-proofing agent, flame retardant, and the like, can be added to improve the fire-extinguishing performance of the fire-extinguishing agent.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a high temperature phase transition thermosensitive fire extinguishing gel and a preparation method thereof. Background technique

[0002] In a fire, combustible substances have a large combustion calorific value, high combustion temperature, and long fire fighting time. A large amount of water vapor will be generated at the fire scene, and water vapor explosion may be generated in confined spaces and high-temperature places (high-temperature reactors, saunas, etc.), causing rescue Casualties (occurs frequently in actual fire extinguishing), the amount of water vaporization should be reduced as much as possible when extinguishing fires in such places. Gel fire extinguishing has the characteristics of good water retention, reduced water consumption, improved coverage and extinction effect, high thermal stability, etc., and at the same time improves the safety of the fire extinguishing process.

[0003] For combustible solid...

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