WO2015122796A1 - Article de couverture pour l'extinction réactive d'un feu - Google Patents

Article de couverture pour l'extinction réactive d'un feu Download PDF

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Publication number
WO2015122796A1
WO2015122796A1 PCT/RU2014/000531 RU2014000531W WO2015122796A1 WO 2015122796 A1 WO2015122796 A1 WO 2015122796A1 RU 2014000531 W RU2014000531 W RU 2014000531W WO 2015122796 A1 WO2015122796 A1 WO 2015122796A1
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WO
WIPO (PCT)
Prior art keywords
fire
coating
product according
microcapsules
reactive
Prior art date
Application number
PCT/RU2014/000531
Other languages
English (en)
Russian (ru)
Inventor
Александр Дмитриевич ВИЛЕСОВ
Марина Сергеевна ВИЛЕСОВА
Юрий Станиславович КОЛЬЦОВ
Original Assignee
Общество С Ограниченной Ответственностью "Делси"
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Application filed by Общество С Ограниченной Ответственностью "Делси" filed Critical Общество С Ограниченной Ответственностью "Делси"
Priority to EP14882597.9A priority Critical patent/EP3106207A4/fr
Publication of WO2015122796A1 publication Critical patent/WO2015122796A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C8/00—Hand tools or accessories specially adapted for fire-fighting, e.g. tool boxes
    • A62C8/06—Fire-blankets

Definitions

  • a fire-resistant blanket containing fiberglass on a plastic substrate impregnated with a mixture of hydrated powder aluminum silicate (kaolin) and liquid glass (DE, 4120562, A), in which the substrate can be made of metal and partly of aluminum, foil and mixtures thereof, fiberglass fabric impregnated with the above mixture.
  • kaolin hydrated powder aluminum silicate
  • DE, 4120562, A liquid glass
  • the cooling of the combustion region is additionally achieved due to the release and evaporation of water from hydrated components.
  • a flexible fire-retardant material (DE, 102007014212, A) containing two layers of fibrous semi-finished product having a softening temperature of about 700 ° C, for example, made of fiber with a softening temperature of 1000 ° C, preferably glass fibers and / or basalt fibers , and an intermediate layer of a fireproofing agent selected from the group of inorganic, halogenated or non-halogenated organophosphorus compounds and / or fire suppressants based on a placed between the two layers zotas having gas ablation (entrainment of mass), forming in a closed volume between the layers a bulge that prevents the contact of the protected object with oxygen.
  • a fireproofing agent selected from the group of inorganic, halogenated or non-halogenated organophosphorus compounds and / or fire suppressants based on a placed between the two layers zotas having gas ablation (entrainment of mass), forming in a closed volume between the layers a bulg
  • all the means described above relate to passive protection of objects having potentially fire hazardous areas by interrupting the access of atmospheric oxygen to the combustion center or with additional cooling of the combustion zone due to the release and evaporation of water.
  • the use of such means in the presence of a source of ignition located on the surface of the protected object in an oxygen-containing environment requires tight pressing of the used means to the surface of the protected object to prevent air inflow into the source of fire, which is problematic and potentially dangerous for the acting subject (rescuer). If this conditional protection is violated, repeated ignition often occurs, leading to the development of a fire.
  • a microencapsulated extinguishing agent (RU, 2469761, C1) containing microcapsules having a core of extinguishing liquid placed inside a spherical polymer shell made of a cured spatially crosslinked polymer material and containing nanoparticles of a mineral filler in the form of plates having a thickness of 1-5 nm , and the specified agent has the ability of explosive destruction in the temperature range of 90-230 ° C.
  • the purpose of the present invention was the creation of reusable rapidly deploying means of increased efficiency of active fire extinguishing fires of various sizes or used as a preventive measure to prevent the growth of a fire, providing quick fire extinguishing in the fire, eliminating the possibility of re-ignition and safe for people in the area fire (injured) or operating in the fire (rescuers) by active direct exposure I'm on the heat source, in the safety of its use both in domestic conditions (apartments, cottages, hotels, restaurants and other facilities), and in industrial premises, at gas stations, in garages, and in transport.
  • a coating product for reactive fire extinguishing made of a material having a woven or non-woven base with a coating containing a polymer carrier with microcapsules dispersed in it, having a core of a liquid fire-extinguishing agent located in the shell, characterized in that the material has a flexible soft fibrous base, the coating is made reactive in the form of a flexible layer, placed indivisibly on the specified fibrous base from the side of the alleged contact of the product from the eye ignition homogenization and contains a soft flexible polymer carrier in which microcapsules are dispersed, having a core containing an extinguishing agent or a mixture of extinguishing agents, characterized by high gas formation and thermal decomposition with their formation of heavy free radicals when they are heated above their boiling point, and a shell characterized by a narrow temperature range its destruction at a temperature above the boiling point of the extinguishing agent.
  • the product it is advisable that the product as
  • the material of the fibrous base was selected from the group of technical fabrics such as canvas or belting.
  • the reactive coating as a polymeric carrier contain rubber or rubber-like polymer, characterized by a curing temperature of not higher than + 45 ° C.
  • the film-forming polymer in the initial state was selected from the group including: polyvinyl alcohol in the form of an aqueous solution with a plasticizer; polyvinyl acetate as an aqueous dispersion; polybutyl acrylate in the form of butyl acrylate latex.
  • the content of microcapsules in the polymer carrier was 50-90 wt.%.
  • microcapsules having a microcapsule shell made of a cured spatially crosslinked polymeric material formed by a complex of polyvinyl alcohol with urea-resorcinol-formaldehyde resin or crosslinked gelatin are dispersed in a polymer reactive coating carrier.
  • microcapsules having a shell made of a cured spatially crosslinked polymer material formed by a complex of polyvinyl alcohol with urea-resorcinol-formaldehyde resin or crosslinked gelatin filled with exfoliated monolithic nanoparticles are dispersed in the polymer reactive coating carrier plates having a thickness of 1-5 nm.
  • the product was adapted for compact storage and rapid deployment over the fire and selected from the group including: napkin, blanket, rug, canopy.
  • the integumentary product can be adapted for permanent placement over technical objects or inside objects in the process of their operation as a preventive measure to prevent fire and is selected from the group including: awning, canopy, wrapper, bedspread, gasket, cover.
  • the product can be adapted to be placed over protected fire hazardous objects during their storage or transportation and is selected from the group including: bedspread, tent, canopy, autologue, packaging, cover.
  • the reactive fire extinguishing coating article according to the invention is made of a material having a flexible soft woven or non-woven fibrous base with a reactive coating made in the form of a flexible layer placed one-piece on the specified fibrous base on the side of the intended contact of the product with the fire.
  • the material of mineral or carbon or vegetable fibers or a combination thereof for example, selected from the group including fiberglass, fabric of mineral fibers, carbon fabric, cotton fabric, linen fabric, fabric from sesame fibers, fabric from hemp, is used as the fibrous base fibers, fabric from combined fibers.
  • the fiber base material may be selected from the group of technical fabrics, for example, tarpaulin or belting.
  • the fibrous base provides the flexibility of the product and the possibility of creating on the surface of an integral thin coating of sufficient fire extinguishing efficiency.
  • a base of material of different texture and density can be selected.
  • perfluoroethyl perfluoroisopropyl ketone having the formula C 6 Fi20, called Novecl230 or PFK-49, having a boiling point of 49.2 ° C, and mixtures thereof, in a shell providing, before its destruction, the possibility of overheating of the extinguishing agent in the core of the microcapsule no less than 40 ° C above its boiling point.
  • the extinguishing agent is Freon 114B2 or PFK-49
  • heating the shell of the microcapsule to 100-120 ° C (or higher for other extinguishing agents) causes explosive destruction of the shell containing the superheated products of thermal decomposition of the extinguishing agent, their gasification and active release into the environment .
  • the microcapsules have a diameter of 10-400 microns and a temperature of destruction of the shell in the range of 90-230 ° C.
  • the shell may contain nanoparticles of a mineral filler, preferably exfoliated montmorillonite in the form of plates having a thickness of 1-5 nm.
  • the microcapsules have a diameter of 10-400 microns, and the content of microcapsules in the polymer carrier of the reactive coating is 50-90 mass%.
  • the coating articles contain rubber or rubber-like polymer having a curing temperature of not higher than + 45 ° C, for example, selected from the group consisting of silicone rubber, polyurethanes, elasticized epoxies, polyesters.
  • the flexibility of the coating layer provides the necessary reversible deformation of the coating product for its best placement on the protected object, as well as the possibility of transforming the shape of the coating product during its use for fire extinguishing.
  • the coating products can be made with different reactive coating areas and various shapes.
  • the dimensions of the coating products are determined by the convenience of their operation in the conditions of use.
  • the thickness and area of the required reactive coating can be calculated taking into account the estimated volume of the protected object, the volumetric fire extinguishing concentration of the extinguishing agent used and the requirements of single or multiple operation.
  • the coating thickness may be 0.3 -5.0 mm or more (for products with spatially extended shapes).
  • the coating product can have a given shape and area of the reactive coating and can be made of a fibrous base material having a reactive coating on one side.
  • the coating product can be adapted for compact storage and rapid deployment over the fire and can be, for example, a napkin, blanket, rug, canopy.
  • Products with a reactive coating on one side can find application both for extinguishing burning clothes on a person (victim) when placing them side with a reactive coating to the fire center on a person, and to protect the lifeguard when placing the product with the reactive coating side out (to the source of fire).
  • the cover product may be a cloak, raincoat, tent, or coverlet.
  • the coating product can have a given shape and area of the reactive coating and can be made of a fibrous base material having a reactive coating on both of its sides.
  • a coating product can be designed to be placed on protected fire hazardous objects, for example, on containers with flammable liquids or substances that can spontaneously ignite when overheated or ignite from a random source of fire, for example, from an extinguished cigarette, as well as during criminal arson, for example , from hit by a bullet, in the conditions of their storage or transportation, or for placement of a cover product on energized equipment, and be a cover, awning, canopy, autologue, wrapper, packaging.
  • the manufacturing technology of coating products for reactive fire extinguishing according to the invention can be implemented in the following variants:
  • the technology for applying a reactive coating to a woven or non-woven fibrous base includes:
  • Samples of the coating articles according to the invention were made from fiber base materials with reactive coating on one or two of its sides, followed by curing.
  • a paste was applied manually, containing dispersed finished microcapsules in a mixture of liquid silicone rubber with a catalyst and hardener, obtained as described in RU 2469761 C1, in an amount of 60 wt.% Of the total weight of the reactive coating having a size of 125-400 ⁇ m, a core with 114B2 freon having a boiling point of 47.3 ° C, in a shell having a degradation temperature in the range 129-130 ° C, to obtain a reactive coating thickness of 0.5 mm. The reactive coating was then cured at room temperature for 24 hours.
  • the calculated volume of the ignition area to be extinguished by the thermal decomposition products of Freon 114B2 with a fire extinguishing concentration of Freon 114B2 equal to 5.0% by volume is up to 2.4 m.
  • the size of the cover article, in this case, the blanket can be increased or decreased.
  • the thickness of the reactive coating should be proportionally increased to a maximum of 5.0 mm.
  • a paste was manually applied sequentially containing liquid silicone rubber with a catalyst and hardener dispersed in this mixture in an amount of 60 wt.% Of the total weight of the reactive coating microcapsules (RU, 2469761, C1) having a temperature of destruction of the shell in the range of 95-100 ° C, size 125-250 ⁇ m, as a fire extinguishing agent containing perfluoroketone, called PFK-49 or Novecl230, having a boiling point of 49.2 ° C, with increased environmental safety, and having a shell modified by the introduction of exfoliated montmorillonite nanoparticles in the form of plates having a thickness of 1-5 nm.
  • a ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example, 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • a coating product in the form of a fiberglass blanket with a size of 100x180 cm and a thickness of 1 mm (with a coating layer of 0.5 mm) was made as described in Example 1, but in the polymer carrier of the reactive coating, ready-made microcapsules (RU, 2469761, C1) of size 20-250 were used ⁇ m in the amount of 60 wt.% of the total weight of the reactive coating containing dibromomethane having a boiling point of 97 ° C and lower cost, in a shell having a temperature of destruction in the range of 225-230 ° C.
  • a ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example, 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • the coating product in the form of a fiberglass blanket with a size of 100x180 cm and a thickness of 1 mm (with a coating layer of 0.3-0.5 mm) was made as described in Example 1, but the finished microcapsules were dispersed in the polymer carrier of the reactive coating (RU, 2469761, C1) size 20-200 ⁇ m in an amount of 60 wt.% of the total weight of the reactive coating containing freon 318B2 or 217I-1, in a shell having a temperature of destruction in the range of 90-100 ° C.
  • a ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example, 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • Examples 5-7 Coating products in the form of blankets made of fiberglass with a size of 100x180 cm and a thickness of 1 mm (with a coating layer of 0.3 mm) were made as described in Example 1, but ready-made microcapsules (RU, 2469761, C1) of 20-250 size were dispersed in a polymer carrier of a reactive coating microns in the amount of 60 wt.% of the total weight of the reactive coating, containing in the core fire-extinguishing agents of different composition with different boiling points in the shells of the same composition:
  • composition of the mixture of extinguishing agents it is possible to achieve the required temperature of the superheat of the gaseous products of thermal decomposition of the extinguishing agent and the temperature of the destruction of the shell of the microcapsule, which allows for the explosive release of a significant amount of gaseous products of thermal decomposition into the surrounding space.
  • a ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example, 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • the coating product was made in the form of a blanket with a size of 100x180 cm and a thickness of 1.0-1.5 mm of the base (with a coating layer of 0.5 mm) having a fibrous base of a non-woven fabric of cotton fibers containing microcapsules similar to Example 1, using a technology similar to that described in example 1, with a reactive coating on one side of the fibrous base. Flexibility and the softness of the ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • the cover product was made in the form of a 100x180cm blanket having a woven fiber base made of carbon fiber (carbon fabric or carbon) 0.25 mm thick, using a technology similar to that described in Example 1, with a reactive coating 0.3 - 0.5 mm thick on one side of the blanket containing microcapsules analogous to Example 1 with a similar extinguishing agent in the core and a similar shell.
  • the flexibility and softness of a ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example, 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • a cover product in the form of a fiberglass blanket measuring 100x180 cm and 0.7 mm thick was made similarly to that described in Example 1, but a polyvinyl acetate emulsion (PVA glue) was used as a polymer carrier, in which the finished microcapsules were dispersed (RU, 2469761, C1 ) with a size of 125-300 ⁇ m in an amount of 80-90 mass% of the total weight of the reactive coating (after drying the coating), containing Freon 114B2 in the core, in a shell having a temperature of destruction of 129-130 ° ⁇ .
  • the thickness of the reactive coating was 0.3 mm.
  • a ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example, 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • a cover product in the form of a 100x180 cm fiberglass blanket and 0.7 mm thickness was made similarly to that described in Example 1, but a polyvinyl alcohol (PVA) solution plasticized with polyalcohols, for example glycerin, in which the prepared microcapsules were dispersed, was used as a polymer carrier (RU, 2469761, C1) with a size of 125- ⁇ 0 carteoidal influence committee in the amount of 80-90 wt.% Of the total weight of the reactive coating (after drying coatings) containing Freon 114B2 in the core, in a shell having a temperature of destruction of 129-130 ° C. The thickness of the reactive coating was 0.3-0.5 mm.
  • PVA polyvinyl alcohol
  • a ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example, 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • Coating products in the form of fiberglass blankets with a size of 100x180 cm and a thickness of 0.8 mm were made as described in example 1, but as a polymer carrier were used: elastic epoxy resin (example 12), polyurethane composition for cold curing (example 13), polyester composition cold curing (example 14), while in the polymer carrier, the prepared microcapsules (RU, 2469761, C1) of 125-400 ⁇ m in the amount of 80-90 mass% of the total weight of the reactive coating (after drying the coating) were dispersed.
  • the thickness of the reactive coating was 0.5 mm.
  • a ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example, 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • the cover product was made in the form of a blanket 100x180cm in size, having a fibrous base of technical fabric - tarpaulin 1.0 mm thick, using a technology similar to that described in example 1, with a reactive coating 0.3 - 0.5 mm thick on one side of the blanket containing similar Example 1 microcapsules with a similar extinguishing agent in the core and a similar shell.
  • the flexibility and softness of a ready-to-use coating product in the form of a blanket allows it to be reversibly deformed to a convenient size, for example, 30x50cm, and manipulated with it for placement in a packaging bag or quick deployment for use.
  • Fire tests were carried out on samples of developed coating products for reactive fire extinguishing, having a fiber-based reactive coating on one or both sides. For comparison, were subjected to fire tests of samples of coating products without reactive coating made of fiberglass and carbon fiber, and samples of coating products with a woven fibrous base of plant fibers without coating.
  • Fire tests were carried out at an experimental laboratory bench, which had a test box 200x200x200mm in size made of stainless steel, in which holes for air intake were made in the vertical walls and holes for arson in a removable cover.
  • a Petri dish with 30 ml of diesel was placed in the box at its bottom. The lid was closed, and diesel was ignited through a hole in the removable lid. After flaring up for 5 seconds, the lid was removed and replaced with a sample cut from the extinguishing coverslips described in Examples 1-15, or a sample of the coverslips made of fiberglass and carbon without reactive coating.
  • the stopwatch measured the time until the cessation of combustion.
  • the distance to the source of ignition is 200 mm
  • the area of the reactive coating is 200x200 mm
  • only part of the reactive microcapsules was subjected to destruction during extinction coatings and the volume of gaseous thermal decomposition products ejected from the surface layer of the reactive coating extinguishing agents was sufficient to stop the combustion of fuel at a distance of 200 mm from the reactive coating after 5-12 seconds.
  • the presence of undestroyed microcapsules on the surface of an already extinguished source of ignition prevents its re-ignition.
  • the implementation of the coating products for reactive fire extinguishing flexible and soft allows them to be placed on the surface of protected or burning objects and structures of various configurations, achieving their fit over the entire required contact area.
  • the coating products can be of various shapes, with different surface area of the reactive coating.
  • Coating products for the elimination of larger foci of burning can have large overall dimensions, for example, in the form of fire-extinguishing blankets, bedspreads for use in fires in transport, in the subway.
  • coverslips of almost any overall dimensions can be used. It is effective to use the described cover products in the form of a cloak-tent or cape of a traditional style for rescue personnel, in the form of a tent for staying in a forest zone.
  • Fire extinguishing wipes for example, size 500x500mm, are suitable for use in hospitals and nursing homes to instantly eliminate the fire from a match, not extinguished cigarettes, fire electrical wiring on a heating pad or bedside lamp.
  • thermal decomposition and degradation products do not have a harmful effect on skin, they protect the skin from thermal burns, which is useful for firefighters and rescuers to use these products when they overcome rooms or areas covered by flames .
  • Coating products for reactive fire extinguishing can be manufactured using known technological methods for producing coatings on finished woven or non-woven fibrous substrates, using known polymeric materials and microcapsules containing a core with known extinguishing agents in the shell, and can be widely used as means for quickly extinguishing both local fires and spatially extended fires (as a protection for rescuers), as well as e means of preventive protection of objects of increased fire hazard during their operation, storage and transportation.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne un article de couverture pour l'extinction réactive d'un feu, qui est fait d'un matériau comprenant une base tissée ou non tissée fibreuse molle et flexible ayant un revêtement réactif en forme de couche flexible disposée à demeure sur ladite surface fibreuse du côté du contact supposé de l'article avec le foyer du feu, et comportant un support polymère flexible mou dans lequel sont dispersées des microcapsules comprenant un cœur contenant un agent d'extinction de feu ou un mélange d'agents d'extinction de feu ; les microcapsules sont caractérisées, lors de leur chauffage au-dessus de leur température d'ébullition, par un fort dégagement de gaz et une décomposition thermique de manière à former des radicaux libres lourds ; les microcapsules comprennent également une enveloppe caractérisée par une faible plage de températures de destruction à une température supérieure à la température d'ébullition de l'agent d'extinction de feu.
PCT/RU2014/000531 2014-02-14 2014-07-21 Article de couverture pour l'extinction réactive d'un feu WO2015122796A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14882597.9A EP3106207A4 (fr) 2014-02-14 2014-07-21 Article de couverture pour l'extinction réactive d'un feu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2014105466 2014-02-14
RU2014105466 2014-02-14

Publications (1)

Publication Number Publication Date
WO2015122796A1 true WO2015122796A1 (fr) 2015-08-20

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EP (1) EP3106207A4 (fr)
WO (1) WO2015122796A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111184965A (zh) * 2019-12-23 2020-05-22 中纺院（浙江）技术研究院有限公司 一种可释放不燃性气体的灭火毯
RU2751466C1 (ru) * 2020-11-12 2021-07-14 Общество с ограниченной ответственностью "Мультитекс" Способ изготовления противопожарного барьера

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU179466U1 (ru) * 2017-11-01 2018-05-15 Акционерное общество "Фортис" Автономная установка пожаротушения на основе термоактивируемого агента, содержащегося в микрокапсулах
CN111265800A (zh) * 2020-04-01 2020-06-12 上海联捷消防科技有限公司 一种可自动灭火的新型灭火毯

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JP2009119240A (ja) * 2008-05-02 2009-06-04 Yamato Grand Kk 消火性シート
RU2469761C1 (ru) * 2011-06-23 2012-12-20 Общество С Ограниченной Ответственностью "Делси" Микрокапсулированный огнегасящий агент, способ его получения, огнегасящий композиционный материал и огнегасящее покрытие
WO2012177181A1 (fr) * 2011-06-23 2012-12-27 Общество С Ограниченной Ответственностью "Делси" Agent d'extinction d'incendie micro-encapsulé et procédé de production correspondant

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MARTYNENKO V. I.: "Pozharnaya bezopasnost v sudostroitelnom proizvodstve.", SPRAVOCHNIK, 1987, pages 265, XP008182118 *
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111184965A (zh) * 2019-12-23 2020-05-22 中纺院（浙江）技术研究院有限公司 一种可释放不燃性气体的灭火毯
RU2751466C1 (ru) * 2020-11-12 2021-07-14 Общество с ограниченной ответственностью "Мультитекс" Способ изготовления противопожарного барьера

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Publication number Publication date
EP3106207A4 (fr) 2017-04-19
EP3106207A1 (fr) 2016-12-21

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