An environment-friendly fire-retardant coating comprises a coating substrate and fire-extinguishing agent microcapsules which can be ruptured and vaporized to a release fire-extinguishing material to achieve the purposes of cooling and/or fire prevention and/or fire extinguishing upon being exposed to a temperature of not less than 75 C. and/or an open flame environment. In order to break the current situation that the traditional fire-prevention, fire-extinguishing and flame-retardant coatings can only prevent the spread of the fire area, but it is difficult to extinguish the fire sensitively and actively in a short time, there are provided a variety of coatings and/or films which can actively cool down, prevent fire and extinguish the fire, have short response time, have stable fire-extinguishing components in the coatings and/or films, with the films being able to trigger the fire extinguishment repeatedly.

A perfluorohexanone microcapsule with a high core-wall ratio is provided. In the perfluorohexanone microcapsule, there is no need for auxiliary materials/fillers and other adsorption or high-boiling solvent to dissolve perfluorohexanone. By coating the microcapsule shell with secondary polymers, the shell strength of the microcapsule is improved, the volatilization loss of perfluorohexanone is reduced, and the problem of short storage life of the perfluorohexanone microcapsule material is overcome, so that it has commercial application value. The perfluorohexanone microcapsule can be further compounded with various materials and interfaces to obtain various fire extinguishing materials with perfluorohexanone microcapsule as the core component. This kind of fire extinguishing material can be dry powder of perfluorohexanone microcapsules, and can also be made into shapes suitable for various surfaces, such as fire extinguishing stickers, fire extinguishing blankets and fire-fighting clothes with various thicknesses.

A fire extinguishing system with an immediate fire extinguisher includes a wide area fire extinguishing system configured to have a main control system, a fire detecting unit connected to the main control system, a communication unit, and a wide-fire extinguishing unit that extinguishes a wide-spread fire in response to an instruction from the main control system, and a spot-fire extinguishing system configured to have an RF communication module as a third communication module for communicating with the main control system, a temperature sensor, and the immediate fire extinguisher that performs immediate extinguishing of a fire.

A firefighting system can include an aqueous solution, including an ionic liquid surfactant, and an application mechanism configured to disperse the solution toward a fire.

An environment-friendly fire-retardant coating comprises a coating substrate and fire-extinguishing agent microcapsules which can be ruptured and vaporized to a release fire-extinguishing material to achieve the purposes of cooling and/or fire prevention and/or fire extinguishing upon being exposed to a temperature of not less than 75 C. and/or an open flame environment. In order to break the current situation that the traditional fire-prevention, fire-extinguishing and flame-retardant coatings can only prevent the spread of the fire area, but it is difficult to extinguish the fire sensitively and actively in a short time, there are provided a variety of coatings and/or films which can actively cool down, prevent fire and extinguish the fire, have short response time, have stable fire-extinguishing components in the coatings and/or films, with the films being able to trigger the fire extinguishment repeatedly.

The technical problem to be solved: (a) to increase stability of microcapsules having a core comprising a target lyophilic liquid with a low boiling point and which is immiscible with water, wherein said liquid is characterised in that it has the ability to hydrolyze and to form acidic products, said core being comprised in a spherical shell made of cured cross-linked polymeric material, which shell releases said target liquid when the surrounding environment has certain parameters leading to destruction of said shell; (b) to prevent the loss of the target liquid; and (c) to preserve microcapsule characteristics during long storage periods thereof. For this purpose the invention provides a method for producing microcapsules wherein a stabilising agent is added to the liquid to be encapsulated, which stabiliser suppresses the development of acidity during emulsification, coacervation and coalescence stages in a droplet of the liquid to be encapsulated and on the phase interface. AA 24 hours

The present invention relates to a fire-extinguishing microcapsule, a method for manufacturing same, and a fire-extinguishing composition comprising same. The microcapsule includes a core containing a non-inflammable material; a first shell layer covering the core and containing inorganic nanoparticles and a water-soluble polymer; and a second shell layer covering the first shell layer and containing a polymer.

A perfluorohexanone microcapsule with a high core-wall ratio is provided. In the perfluorohexanone microcapsule, there is no need for auxiliary materials/fillers and other adsorption or high-boiling solvent to dissolve perfluorohexanone. By coating the microcapsule shell with secondary polymers, the shell strength of the microcapsule is improved, the volatilization loss of perfluorohexanone is reduced, and the problem of short storage life of the perfluorohexanone microcapsule material is overcome, so that it has commercial application value. The perfluorohexanone microcapsule can be further compounded with various materials and interfaces to obtain various fire extinguishing materials with perfluorohexanone microcapsule as the core component. This kind of fire extinguishing material can be dry powder of perfluorohexanone microcapsules, and can also be made into shapes suitable for various surfaces, such as fire extinguishing stickers, fire extinguishing blankets and fire-fighting clothes with various thicknesses.

A composition and apparatus for dry chemical fire extinguishing material is disclosed. The composition has a dry chemical fire extinguishing agent mixed with substantially spherical microspheres. The apparatus has a container for retaining the composition and a delivery nozzle. Also in the container is a propellant to convey the composition from the container to the nozzle. A fire is contacted by the composition to extinguish the fire.

An autonomous fire-fighting agent (10) formed from a material with fire-extinguishing properties. The material includes: microcapsules with a fire-extinguishing composition, the microcapsules having sizes of from 2 to 100 m and being in the form of a halocarbon enclosed in a polymeric shell consisting of polyurea and/or polyurethane; and a binder. The binder includes a composite material having a polymeric component and mineral fibers and/or particles. The invention also relates to a method for manufacturing an autonomous fire-fighting agent (10) and an object which uses the autonomous fire-fighting agent (10) to fight a fire 10-20 s after ignition.