CN107376178A - A kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent - Google Patents
A kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent Download PDFInfo
- Publication number
- CN107376178A CN107376178A CN201710424649.XA CN201710424649A CN107376178A CN 107376178 A CN107376178 A CN 107376178A CN 201710424649 A CN201710424649 A CN 201710424649A CN 107376178 A CN107376178 A CN 107376178A
- Authority
- CN
- China
- Prior art keywords
- parts
- molecular screen
- screen membrane
- extinguishing agent
- fire extinguishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0007—Solid extinguishing substances
- A62D1/0014—Powders; Granules
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/06—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Cosmetics (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention discloses a kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent, belong to fire-fighting technique field.The present invention is by by saturated sodium bicarbonate solution and octadecylamine and isopropanol mixed precipitation, collect ultra-fine sodium acid carbonate, simultaneously by sodium acid carbonate and white carbon mixing and ball milling, because white carbon is flocculent structure, there are many holes on surface, sodium bicarbonate particle is set to be loaded in white carbon hole, again by its supporting molecular sieve membrane, because molecular screen membrane uniformly coats, Surfactant effectively adsorbs simultaneously, it is surfactant in extinguishing chemical particle surface absorption film-forming, prevents from reuniting between particle, strengthen the storage life of cold aerosol fire extinguishing agent.
Description
Technical field
The invention discloses a kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent, belongs to fire-fighting technique neck
Domain.
Background technology
Fire is arch enemy of man.No matter superficial fire or mine fire not only cause substantial amounts of casualties, also
Cause the heavy losses of property and natural resources.Therefore, exploitation prepares the extinguishing chemical of high performance cheap fast and effeciently to put out
Fire, loss is reduced, is always significant research topic.Ammonium phosphate powder extinguishing agent both has higher fire extinguishing
Efficiency, fire extinguishing scope is wide, the A classes that can go out (flammable solid), B classes (flammable liquid), C classes (fuel gas) fire, and to environment
Close friend, it is a kind of new " clean extinguisher ".Fire-fighting circle is it is believed that the great development of ammonium phosphate powder extinguishing agent is latent
Power, it is one of best substitute of halon fire agent.
Because the fire extinguishing effectiveness of ultra-fine dry powder extinguishing agent is significantly larger than common powder extinguishing agent, therefore, in order to further carry
The fire extinguishing effectiveness of high ammonium phosphate powder extinguishing agent and the application field for widening powder extinguishing agent, at present ammonium phosphate dry-powder fire extinguishing
The research of agent just develops towards micronization direction, but cold aerosol fire extinguishing agent is because its particle is very small, very bigger than surface,
Contain water soluble salt in composition, cause its easy moisture absorption, and surface free energy is high, so as to be easy to reunite, this is very big
Ground have impact on the storage life of cold aerosol fire extinguishing agent.In existing surface of microcapsule method of modifying, surface of microcapsule is modified
Diameter of particle is larger, it is difficult to meets the Particle size requirements needed for cold aerosol fire extinguishing agent, and aftertreatment technology is more troublesome, comes relatively
Say that cost is very high, and during by surfactant load cold aerosol fire extinguishing agent, surfactant load degree is not high, in powder
Area load is not thorough enough, also results in and reunites again, so, prepare a kind of cold air sol of overall load surfactant and go out
Fiery agent is necessary.
The content of the invention
Present invention mainly solves technical problem：Reunite for the easy moisture absorption of existing cold aerosol fire extinguishing agent particle, load table
SURFACTANT ADSORPTION degree is not high during the activating agent of face, loads not thorough enough problem, there is provided a kind of molecular screen membrane cladded type cold air
The preparation method of aerosol extinguishing agent.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）In mass ratio 1:8, octadecylamine and isopropanol are stirred to obtain mixed liquor, then in mass ratio 1:2, by 50 DEG C
Saturated sodium bicarbonate solution is added dropwise in mixed liquor, is heated and is filtered to obtain filter cake while hot, dry and ground 200 mesh sieve, obtains super
Thin sodium bicarbonate powder, in mass ratio 15:1, by ultra-fine sodium bicarbonate powder and white carbon mixing and ball milling and 200 mesh sieves are crossed, are obtained
Mixed-powder；
（2）Count in parts by weight, weigh 65~75 parts of deionized waters, 0.8~1.0 part of phosphorus pentoxide and 3~5 parts of isopropyls respectively
Aluminium alcoholates is stirred, and heating water bath obtains aluminium isopropoxide hydrolyzate, in mass ratio 1:10, nano silicon is added to isopropanol
In aluminium hydrolyzate, mixed liquor must be modified by being stirred；
（3）Count in parts by weight, it is mixed to weigh 2~3 parts of tetraethyl ammonium hydroxides, 1~2 part of diphenylamines and 55~60 parts of modifications respectively
Liquid mixing and oil bath heating are closed, obtains molecular screen membrane Synthesis liquid, in mass ratio 1:10, mixed-powder is synthesized added to molecular screen membrane
In liquid, oil bath heating simultaneously stands and is cooled to room temperature, filters to obtain filter residue, washing, dries, collect to obtain molecular screen membrane coated particle；
（4）Count in parts by weight, respectively weigh 45~50 parts of molecular screen membrane coated particles, 1~2 part of talcum powder, 15~20 part ten
Six alkyl trimethyl ammonium bromides and 85~90 parts of deionized waters are placed in beaker, are stirred simultaneously rotary evaporated to dryness, are obtained drying
Simultaneously ball milling crosses 200 mesh sieves to particle, you can is prepared into a kind of molecular screen membrane cladded type cold aerosol fire extinguishing agent.
Step（1）Described saturated sodium bicarbonate solution rate of addition is 1mL/min.
Step（3）Described drying condition is that 10~12h is dried at nitrogen atmosphere, 200~220 DEG C.
The beneficial effects of the invention are as follows：
The present invention is first by by saturated sodium bicarbonate solution and octadecylamine and isopropanol mixed precipitation, collecting ultra-fine carbonic acid
Hydrogen sodium, while by sodium acid carbonate and white carbon mixing and ball milling, because white carbon is flocculent structure, there are many holes on surface, make carbon
Sour hydrogen sodium particulate load is into white carbon hole, then by its supporting molecular sieve membrane, because molecular screen membrane uniformly coats, simultaneously
Surfactant effectively adsorbs, and makes surfactant prevent from that the moisture absorption occurs between particle in extinguishing chemical particle surface absorption film-forming
Reunite, while there is excellent pore structure by the molecular sieve of load, effective absorption surface activating agent, improve extinguishing chemical to table
The degree of absorption of face activating agent, strengthen the storage life of cold aerosol fire extinguishing agent.
Embodiment
First in mass ratio 1:8, octadecylamine and aqueous isopropanol are stirred, at 50 DEG C heating water bath 25~
After 30min, mixed liquor, then in mass ratio 1 are obtained:2,50 DEG C of saturated sodium bicarbonate solutions are added dropwise in mixed liquor, control is added dropwise
Speed is 1mL/min；After being added dropwise to complete, 15~20min of Heat preservation, filter while hot and obtain filter cake, filter cake is dried in vacuo
And ground 200 mesh sieve, ultra-fine sodium bicarbonate powder is obtained, then in mass ratio 15:1, ultra-fine sodium bicarbonate powder and white carbon
It is stirred and is placed in ball grinder, 3~5h of ball milling under 450~500r/min, crosses 200 mesh sieves and obtain mixed-powder；By weight
Number meter, 65~75 parts of deionized waters, 0.8~1.0 part of phosphorus pentoxide and 3~5 parts of aluminium isopropoxides are weighed respectively and are stirred,
100~120min of heating water bath at 45~55 DEG C, prepares aluminium isopropoxide hydrolyzate, in mass ratio 1:10, by nanometer titanium dioxide
Silicon is added in aluminium isopropoxide hydrolyzate, and 2~3h is stirred at 55~65 DEG C, subsequent 1~2h of insulation reaction, is prepared into and changes
Property mixed liquor；Count in parts by weight, weigh 2~3 parts of tetraethyl ammonium hydroxides, 1~2 part of diphenylamines and 55~60 parts of modifications respectively
Mixed liquor is placed in beaker, 70~72h of oil bath heating at 150~160 DEG C, molecular screen membrane Synthesis liquid is prepared into, then by matter
Measure ratio 1:10, mixed-powder is added in molecular screen membrane Synthesis liquid, 20~24h of oil bath heating at 240~250 DEG C, then
Standing is cooled to room temperature, filters and obtains filter residue, filter residue is washed with deionized to cleaning solution to neutrality, in 200~220 DEG C of nitrogen
After the lower dry 10~12h of atmosphere, molecular screen membrane coated particle is obtained；Count in parts by weight, weigh 45~50 parts of molecular sieves respectively
Film coated particle, 1~2 part of talcum powder, 15~20 parts of cetyl trimethylammonium bromides and 85~90 parts of deionized waters are placed in burning
In cup, it is stirred at room temperature and mixes and stand 6~8h, then the rotary evaporated to dryness at 65~70 DEG C, obtains dry particle and ball milling
Cross 200 mesh sieves, you can be prepared into a kind of molecular screen membrane cladded type cold aerosol fire extinguishing agent.
Example 1
First in mass ratio 1:8, octadecylamine and aqueous isopropanol are stirred, at 50 DEG C after heating water bath 25min,
Obtain mixed liquor, then in mass ratio 1:2,50 DEG C of saturated sodium bicarbonate solutions are added dropwise in mixed liquor, control the rate of addition to be
1mL/min；After being added dropwise to complete, Heat preservation 15min, filter while hot and obtain filter cake, by filter cake vacuum drying and ground 200
Mesh sieve, ultra-fine sodium bicarbonate powder is obtained, then in mass ratio 15:1, ultra-fine sodium bicarbonate powder is stirred juxtaposition with white carbon
In ball grinder, the ball milling 3h under 450r/min, cross 200 mesh sieves and obtain mixed-powder；Count in parts by weight, weighing 65 parts respectively goes
Ionized water, 0.8 part of phosphorus pentoxide and 3 parts of aluminium isopropoxides are stirred, and heating water bath 100min, prepares isopropanol at 45 DEG C
Aluminium hydrolyzate, then in mass ratio 1:10, nano silicon is added in aluminium isopropoxide hydrolyzate, stirred at 55 DEG C mixed
2h is closed, subsequent insulation reaction 1h, is prepared into modified mixed liquor；Count in parts by weight, weigh 2 parts of tetraethyl ammonium hydroxides, 1 respectively
Part diphenylamines and 55 portions of modified mixed liquors are placed in beaker, the oil bath heating 70h at 150 DEG C, are prepared into molecular screen membrane Synthesis liquid,
In mass ratio 1:10, mixed-powder is added in molecular screen membrane Synthesis liquid, the oil bath heating 20h at 240 DEG C, then stood cold
But to room temperature, filter and obtain filter residue, filter residue is washed with deionized to cleaning solution to neutrality, it is lower dry under 200 DEG C of nitrogen atmospheres
After dry 10h, molecular screen membrane coated particle is obtained；Count in parts by weight, weigh 45 parts of molecular screen membrane coated particles, 1 part of talcum respectively
Powder, 15 parts of cetyl trimethylammonium bromides and 85 parts of deionized waters are placed in beaker, are stirred at room temperature and are mixed and stand 6h,
The rotary evaporated to dryness at 65 DEG C again, obtains dry particle and ball milling crosses 200 mesh sieves, you can is prepared into a kind of molecular screen membrane cladded type
Cold aerosol fire extinguishing agent.
Example 2
First in mass ratio 1:8, octadecylamine and aqueous isopropanol are stirred, at 50 DEG C after heating water bath 28min,
Obtain mixed liquor, then in mass ratio 1:2,50 DEG C of saturated sodium bicarbonate solutions are added dropwise in mixed liquor, control the rate of addition to be
1mL/min；After being added dropwise to complete, Heat preservation 18min, filter while hot and obtain filter cake, by filter cake vacuum drying and ground 200
Mesh sieve, ultra-fine sodium bicarbonate powder is obtained, then in mass ratio 15:1, ultra-fine sodium bicarbonate powder is stirred juxtaposition with white carbon
In ball grinder, the ball milling 4h under 480r/min, cross 200 mesh sieves and obtain mixed-powder；Count in parts by weight, weighing 70 parts respectively goes
Ionized water, 0.9 part of phosphorus pentoxide and 4 parts of aluminium isopropoxides are stirred, and heating water bath 110min, prepares isopropanol at 50 DEG C
Aluminium hydrolyzate, in mass ratio 1:10, nano silicon is added in aluminium isopropoxide hydrolyzate, is stirred at 60 DEG C
3h, subsequent insulation reaction 2h, is prepared into modified mixed liquor；Count in parts by weight, respectively weigh 3 parts of tetraethyl ammonium hydroxides, 2 parts
Diphenylamines and 58 portions of modified mixed liquors are placed in beaker, the oil bath heating 71h at 155 DEG C, are prepared into molecular screen membrane Synthesis liquid, with
Afterwards in mass ratio 1:10, mixed-powder is added in molecular screen membrane Synthesis liquid, the oil bath heating 22h at 245 DEG C, then stood
Be cooled to room temperature, filter simultaneously filter residue, filter residue is washed with deionized to cleaning solution to neutrality, under 210 DEG C of nitrogen atmospheres under
After drying 11h, molecular screen membrane coated particle is obtained；Count in parts by weight, weigh 48 parts of molecular screen membrane coated particles, 2 parts of cunnings respectively
Stone flour, 18 parts of cetyl trimethylammonium bromides and 88 parts of deionized waters are placed in beaker, are stirred at room temperature and are mixed and stand
7h, then the rotary evaporated to dryness at 68 DEG C, obtain dry particle and ball milling crosses 200 mesh sieves, you can are prepared into a kind of molecular screen membrane bag
Cover type cold aerosol fire extinguishing agent.
Example 3
First in mass ratio 1:8, octadecylamine and aqueous isopropanol are stirred, at 50 DEG C after heating water bath 30min,
Obtain mixed liquor, then in mass ratio 1:2,50 DEG C of saturated sodium bicarbonate solutions are added dropwise in mixed liquor, control the rate of addition to be
1mL/min；After being added dropwise to complete, Heat preservation 20min, filter while hot and obtain filter cake, by filter cake vacuum drying and ground 200
Mesh sieve, ultra-fine sodium bicarbonate powder is obtained, then in mass ratio 15:1, ultra-fine sodium bicarbonate powder is stirred juxtaposition with white carbon
In ball grinder, the ball milling 5h under 500r/min, cross 200 mesh sieves and obtain mixed-powder；Count in parts by weight, weighing 75 parts respectively goes
Ionized water, 1.0 parts of phosphorus pentoxides and 5 parts of aluminium isopropoxides are stirred, and heating water bath 120min, prepares isopropanol at 55 DEG C
Aluminium hydrolyzate, then in mass ratio 1:10, nano silicon is added in aluminium isopropoxide hydrolyzate, stirred at 65 DEG C mixed
3h is closed, subsequent insulation reaction 2h, is prepared into modified mixed liquor；Count in parts by weight, weigh 3 parts of tetraethyl ammonium hydroxides, 2 respectively
Part diphenylamines and 60 portions of modified mixed liquors are placed in beaker, the oil bath heating 72h at 160 DEG C, are prepared into molecular screen membrane Synthesis liquid,
Subsequent in mass ratio 1:10, mixed-powder is added in molecular screen membrane Synthesis liquid, the oil bath heating 24h at 250 DEG C, it is then quiet
Put and be cooled to room temperature, filter and obtain filter residue, filter residue is washed with deionized to cleaning solution to neutrality, under 220 DEG C of nitrogen atmospheres
After lower dry 12h, molecular screen membrane coated particle is obtained；Count in parts by weight, respectively weigh 50 parts of molecular screen membrane coated particles, 2 parts
Talcum powder, 20 parts of cetyl trimethylammonium bromides and 90 parts of deionized waters are placed in beaker, be stirred at room temperature mixing and it is quiet
8h, then the rotary evaporated to dryness at 70 DEG C are put, dry particle is obtained and ball milling crosses 200 mesh sieves, you can be prepared into a kind of molecular screen membrane
Cladded type cold aerosol fire extinguishing agent.
Molecular screen membrane cladded type cold aerosol fire extinguishing agent obtained by above-described embodiment is examined with K-type aerosol extinguishing agent
Survey, and contrasted, as a result as shown in Table 1.
Table one：
Remarks：1# is K-type aerosol extinguishing agent.
As seen from the above table, table during carrier surface activating agent during prepared by molecular screen membrane cladded type cold aerosol fire extinguishing agent of the present invention
Face activating agent adsoptivity is high, and load is thorough, and obtained extinguishing chemical bulk density is 0.38~0.40g/mL, and density is 1.34 × 103
~1.37 × 103kg/m3, particle is without the generation of moisture absorption agglomeration, and moisture absorption increment is 0.4~0.7%, in 50m3In closing space,
25~30s of attack time.
Claims (3)
1. a kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent, it is characterised in that specifically preparation process is：
（1）In mass ratio 1:8, octadecylamine and isopropanol are stirred to obtain mixed liquor, then in mass ratio 1:2, by 50 DEG C
Saturated sodium bicarbonate solution is added dropwise in mixed liquor, is heated and is filtered to obtain filter cake while hot, dry and ground 200 mesh sieve, obtains super
Thin sodium bicarbonate powder, in mass ratio 15:1, by ultra-fine sodium bicarbonate powder and white carbon mixing and ball milling and 200 mesh sieves are crossed, are obtained
Mixed-powder；
（2）Count in parts by weight, weigh 65~75 parts of deionized waters, 0.8~1.0 part of phosphorus pentoxide and 3~5 parts of isopropyls respectively
Aluminium alcoholates is stirred, and heating water bath obtains aluminium isopropoxide hydrolyzate, in mass ratio 1:10, nano silicon is added to isopropanol
In aluminium hydrolyzate, mixed liquor must be modified by being stirred；
（3）Count in parts by weight, it is mixed to weigh 2~3 parts of tetraethyl ammonium hydroxides, 1~2 part of diphenylamines and 55~60 parts of modifications respectively
Liquid mixing and oil bath heating are closed, obtains molecular screen membrane Synthesis liquid, in mass ratio 1:10, mixed-powder is synthesized added to molecular screen membrane
In liquid, oil bath heating simultaneously stands and is cooled to room temperature, filters to obtain filter residue, washing, dries, collect to obtain molecular screen membrane coated particle；
（4）Count in parts by weight, respectively weigh 45~50 parts of molecular screen membrane coated particles, 1~2 part of talcum powder, 15~20 part ten
Six alkyl trimethyl ammonium bromides and 85~90 parts of deionized waters are placed in beaker, are stirred simultaneously rotary evaporated to dryness, are obtained drying
Simultaneously ball milling crosses 200 mesh sieves to particle, you can is prepared into a kind of molecular screen membrane cladded type cold aerosol fire extinguishing agent.
2. a kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent according to claim 1, its feature exist
In：Step（1）Described saturated sodium bicarbonate solution rate of addition is 1mL/min.
3. a kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent according to claim 1, its feature exist
In：Step（3）Described drying condition is that 10~12h is dried at nitrogen atmosphere, 200~220 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710424649.XA CN107376178A (en) | 2017-06-07 | 2017-06-07 | A kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710424649.XA CN107376178A (en) | 2017-06-07 | 2017-06-07 | A kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107376178A true CN107376178A (en) | 2017-11-24 |
Family
ID=60333116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710424649.XA Withdrawn CN107376178A (en) | 2017-06-07 | 2017-06-07 | A kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107376178A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2688749C1 (en) * | 2018-04-02 | 2019-05-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Fire-extinguishing composition |
| CN115676853A (en) * | 2022-11-11 | 2023-02-03 | 天津航空机电有限公司 | Method for dry chemical modification of superfine dry powder extinguishing agent by ball milling |
| CN116870416A (en) * | 2023-05-24 | 2023-10-13 | 湖北及安盾消防科技有限公司 | Ultrathin aerosol fire extinguishing agent and production process thereof |
| CN116920318A (en) * | 2023-07-22 | 2023-10-24 | 广东艾可欣技术有限公司 | Fire extinguishing microcapsule and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688575A (en) * | 2012-05-24 | 2012-09-26 | 中北大学 | Cold aerosol fire extinguishing device |
| CN106362345A (en) * | 2016-08-25 | 2017-02-01 | 浙江师范大学 | Preparation method for aerosol fire-extinguishing agent |
| CN106621162A (en) * | 2016-11-09 | 2017-05-10 | 安徽新盾消防设备有限公司 | Cold air sol fire extinguishing agent |
-
2017
- 2017-06-07 CN CN201710424649.XA patent/CN107376178A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688575A (en) * | 2012-05-24 | 2012-09-26 | 中北大学 | Cold aerosol fire extinguishing device |
| CN106362345A (en) * | 2016-08-25 | 2017-02-01 | 浙江师范大学 | Preparation method for aerosol fire-extinguishing agent |
| CN106621162A (en) * | 2016-11-09 | 2017-05-10 | 安徽新盾消防设备有限公司 | Cold air sol fire extinguishing agent |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2688749C1 (en) * | 2018-04-02 | 2019-05-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Fire-extinguishing composition |
| CN115676853A (en) * | 2022-11-11 | 2023-02-03 | 天津航空机电有限公司 | Method for dry chemical modification of superfine dry powder extinguishing agent by ball milling |
| CN116870416A (en) * | 2023-05-24 | 2023-10-13 | 湖北及安盾消防科技有限公司 | Ultrathin aerosol fire extinguishing agent and production process thereof |
| CN116870416B (en) * | 2023-05-24 | 2024-05-14 | 湖北及安盾消防科技有限公司 | Ultrathin aerosol fire extinguishing agent and production process thereof |
| CN116920318A (en) * | 2023-07-22 | 2023-10-24 | 广东艾可欣技术有限公司 | Fire extinguishing microcapsule and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107376178A (en) | A kind of preparation method of molecular screen membrane cladded type cold aerosol fire extinguishing agent | |
| CN106311190B (en) | The preparation method of porous manganese systems lithium ion sieve adsorbant | |
| CN106000303A (en) | Biological carbon prepared form grapefruit skin, preparation method and application thereof | |
| WO2020177485A1 (en) | Nano silver particle/cellulosic fiber composite material and preparation method | |
| Jiang et al. | Insight into the effect of OH modification on the piezo-photocatalytic hydrogen production activity of SrTiO3 | |
| CN110743497B (en) | Preparation method of bionic structure ultra-light carbon aerogel | |
| CN105709689B (en) | Carbon-based functional material and preparation method thereof | |
| CN101962184A (en) | Method for preparing active carbon by mechanical-chemical method | |
| CN103657589A (en) | Drying agent with high moisture absorption rate | |
| CN101787147B (en) | Method for preparing ultra-high rare earth composite oxide ultraviolet screening agent | |
| CN106866741A (en) | A kind of method of solventless method Fast back-projection algorithm metal-organic framework materials MIL 100 (Cr) | |
| WO2024027045A1 (en) | Method for preparing aluminum salt functional material for lithium extraction | |
| WO2021068537A1 (en) | Method for preparing leather and textile fabric having formaldehyde and unpleasant odor removal function | |
| CN103877691A (en) | Core-shell type composite fire-extinguishing powder and preparation method thereof | |
| CN108079737A (en) | A kind of preparation method of multi-stage porous formaldehyde adsorbent | |
| CN108855196A (en) | A kind of nitridation carbon-to-carbon-TiO2Selenium nanocomposite and its preparation method and application | |
| CN101747868A (en) | Composite phase change energy storage material and preparation method thereof | |
| WO2020078029A1 (en) | High-dispersion silica and preparation method therefor | |
| CN104841428B (en) | Preparation method that is a kind of while removing nitric oxide sulfur dioxide mercury catalyst | |
| CN111945420B (en) | Environment-friendly silver fiber fabric and preparation method thereof | |
| CN105734952A (en) | Textile finishing auxiliary agent and treatment method of textile | |
| CN109692652A (en) | A kind of normal-temperature nano composite getter | |
| CN115608418B (en) | Photocatalysis synergistic adsorption material based on gangue and preparation method and application thereof | |
| CN107674647A (en) | A kind of detergent and preparation method | |
| CN103157214B (en) | Load-type dry powder extinguishing agent, and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171124 |
|
| WW01 | Invention patent application withdrawn after publication |