CN109420281A - A kind of microcapsules self-extinguishing agent - Google Patents
A kind of microcapsules self-extinguishing agent Download PDFInfo
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- CN109420281A CN109420281A CN201710786020.XA CN201710786020A CN109420281A CN 109420281 A CN109420281 A CN 109420281A CN 201710786020 A CN201710786020 A CN 201710786020A CN 109420281 A CN109420281 A CN 109420281A
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- Prior art keywords
- extinguishing
- microcapsules
- extinguishing agent
- self
- resin
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- 239000003094 microcapsule Substances 0.000 title claims abstract description 57
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 53
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 11
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920001807 Urea-formaldehyde Polymers 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 7
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000011256 inorganic filler Substances 0.000 claims description 6
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 6
- 229920002521 macromolecule Polymers 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 claims description 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 108010010803 Gelatin Proteins 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000159 gelatin Polymers 0.000 claims description 4
- 239000008273 gelatin Substances 0.000 claims description 4
- 235000019322 gelatine Nutrition 0.000 claims description 4
- 235000011852 gelatine desserts Nutrition 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 claims description 2
- 229920000180 alkyd Polymers 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical class CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 2
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 claims description 2
- 229960004692 perflenapent Drugs 0.000 claims description 2
- 229960004624 perflexane Drugs 0.000 claims description 2
- ZJIJAJXFLBMLCK-UHFFFAOYSA-N perfluorohexane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F ZJIJAJXFLBMLCK-UHFFFAOYSA-N 0.000 claims description 2
- NJCBUSHGCBERSK-UHFFFAOYSA-N perfluoropentane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F NJCBUSHGCBERSK-UHFFFAOYSA-N 0.000 claims description 2
- 229920005906 polyester polyol Polymers 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920005749 polyurethane resin Polymers 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- DHIVLKMGKIZOHF-UHFFFAOYSA-N 1-fluorooctane Chemical compound CCCCCCCCF DHIVLKMGKIZOHF-UHFFFAOYSA-N 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- QYSGYZVSCZSLHT-UHFFFAOYSA-N octafluoropropane Chemical compound FC(F)(F)C(F)(F)C(F)(F)F QYSGYZVSCZSLHT-UHFFFAOYSA-N 0.000 claims 1
- 229960004065 perflutren Drugs 0.000 claims 1
- 229920001225 polyester resin Polymers 0.000 claims 1
- 239000004645 polyester resin Substances 0.000 claims 1
- 150000005846 sugar alcohols Polymers 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 235000019504 cigarettes Nutrition 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000003995 emulsifying agent Substances 0.000 description 4
- HANVTCGOAROXMV-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.NC1=NC(N)=NC(N)=N1 HANVTCGOAROXMV-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000008282 halocarbons Chemical class 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000004005 microsphere Substances 0.000 description 2
- YVBBRRALBYAZBM-UHFFFAOYSA-N perfluorooctane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YVBBRRALBYAZBM-UHFFFAOYSA-N 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 2
- 229920000053 polysorbate 80 Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- AJDIZQLSFPQPEY-UHFFFAOYSA-N 1,1,2-Trichlorotrifluoroethane Chemical compound FC(F)(Cl)C(F)(Cl)Cl AJDIZQLSFPQPEY-UHFFFAOYSA-N 0.000 description 1
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000005826 halohydrocarbons Chemical class 0.000 description 1
- VBZWSGALLODQNC-UHFFFAOYSA-N hexafluoroacetone Chemical compound FC(F)(F)C(=O)C(F)(F)F VBZWSGALLODQNC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- A62D1/0021—Microcapsules
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
The present invention relates to a kind of microcapsules self-extinguishing agent, it is characterised in that: the extinguishing chemical includes main fire extinguishing material, microcapsule coated material and auxiliary material；The main fire extinguishing material encapsulated material package and form microcapsules, the Microcapsules Size having a size of 5um~150um, the covering material is melamine and/or ureaformaldehyde reacted with formaldehyde made of resin-case.The present invention is a kind of simple, low cost and highly reliable fire-extinguishing composite, after product is made, is not necessarily to any power supply, is not necessarily to special cigarette sense/temperature detector, without complicated equipment and pipeline；Microcapsules self-extinguishing agent of the invention integrates detection, control, starting, fire extinguishing unit, and structure is simple, occupy little space, fire-fighting safety is rapid, maintenance cost is low.
Description
Technical field
The present invention relates to fire-extinguishing agent field, more specifically a kind of microcapsules self-extinguishing agent.
Background technique
The research of microcapsules technology starts from the 1930s, to the end of the fifties with the progress of polymer science, various
Flowcollector aggregation scheme FlowCollector and polymerization technique come into being, and have greatly pushed the fast development of microcapsules technology.In recent years, this technology exists
Fire-fighting domain obtains some applications.
Microcapsules formula extinguishing chemical is usually constituted microsphere with spherical gelatin shell in the prior art, be encapsulated in microsphere by
The liquid fire-fighting agent that heat releases automatically, such as patent RU2162520.Russia occurred novel self-excitation hairdo fire-fighting in 2009
Agent, patent RU90994, to be encapsulated in polyureas and/or the intracorporal halocarbon of polyurethane high molecule shell, the mass content of halocarbon are
70%-90%.With fire extinguishing property the material be coated with solid phase carrier on.Chinese patent CN103370104A discloses one
Kind self-excitation hairdo fire-fighting agent, the microcapsules core material are substantially halohydrocarbon extinguishing material, and the substance is not only with high costs, and
There is different degrees of murder by poisoning to environment and human body.
Summary of the invention
In view of the drawbacks of the prior art, the present invention provides a kind of versatile, yield is high, and nontoxic to environment and human body
Harmless microcapsules self-extinguishing agent.
The technical solution adopted by the present invention is that:
A kind of microcapsules self-extinguishing agent, it is characterised in that: the extinguishing chemical includes main fire extinguishing material, microcapsule coated
Material and auxiliary material；The main fire extinguishing material encapsulated material package and form microcapsules, the Microcapsules Size having a size of
5um~150um, the covering material are resin-case made of melamine and/or ureaformaldehyde are reacted with formaldehyde.
Further, the main fire extinguishing material is perfluoro acetone, perfluor butanone, perfluor pentanone, perfluor hexanone, perfluor third
Alkane, perfluorinated butane, perflenapent, perflexane, PF 5070, perfluorooctane, dibromotetrafluoromethane, in trifluorotrichloroethane
It is one or more.
Further, the auxiliary material is one of macromolecule resin, fiber, inorganic filler or a variety of.
Further, the macromolecule resin is alkyd resin, acrylic resin, epoxy resin, polyurethane resin, polyester
One of resin, silicon rubber, polyvinyl acetate resins, gelatin, polyether polyol, polyester polyol are a variety of.
Further, the fiber is one of glass fibre, asbestos fibre or a variety of.
Further, the inorganic filler is calcium carbonate, silica, titanium dioxide, aluminium oxide, one in aluminium hydroxide
Kind is a variety of.
Further, the microcapsules self-extinguishing agent is shaped to en plaque or cable-shaped.
Further, mass percent shared by each component in the fire-extinguishing composite are as follows:
Main fire extinguishing material 35%~60%
Covering material 25%~40%
Auxiliary material 15%~25%
Another object of the present invention is to provide a kind of preparation methods of microcapsules self-extinguishing agent, and the method includes such as
Lower step:
1) melamine/and/or ureaformaldehyde and formalin and a certain proportion of water are mixed, and adjust its pH value to
After 8.0~9.0, it is warming up to certain temperature and reacts the prepolymer that resin is made；
2) mix a certain proportion of prepolymer, main fire extinguishing material and water and emulsify the partial size of main fire extinguishing material to 5~
150um obtains monomer emulsions；
3) monomer emulsions are moved into reaction kettle, and its ph value is adjusted between 2~6, rise to 40-80 DEG C, material to be covered
Expect fully reacting, obtains the microcapsule suspensions of extinguishing material；
4) it mixes and is merged into macromolecule resin, fiber, inorganic filler after being adjusted to neutrality the ph value of microcapsule suspensions
Type to get.
The present invention is versatile, and yield is high, production and easy to use, the microcapsules fire-fighting efficiency height of preparation, wall material cladding
Densification, intensity is high, and durability is good, high humidity function admirable resistant to high temperatures；Microcapsules plate made of microcapsules and other filler combinations
It can also be achieved i.e. patch with gum to use, fire extinguishing coating can also easily be made and realize spraying or brush operation that there is excitation temperature
Low (96 DEG C) are spent, are quick on the draw, fire-fighting efficiency is high, easy to use, quick self-excitation, is not required to artificial or other technologies means intervention
Many advantages, such as, not by the time, space limitation can almost be used in all spectra, and diversified forms can be made and realize fire extinguishing, can be square
Just be made sheet, linear, emulsion form, sprayable brushing, Pasting, the especially suitable clean place of comparison, precision instrument, distribution
Device, communication computer room have narrow, a relative closure space such as high value high added value, described in patent CN103370104A
Microcapsules core material is substantially halocarbon series extinguishing material, not only with high costs, and has different degrees of murder by poisoning to environment and human body,
Belong to superseded in China or is on the verge of superseded extinguishing material, and microcapsules self-extinguishing agent of the present invention coats perfluor hexanone etc.
Extinguishing material, harmless to the human body, environmental-friendly, green economy have broad application prospects and market prospects.
Compared with the existing technology, present invention has an advantage that
1) present invention is a kind of simple, low cost and highly reliable fire-extinguishing composite, after product is made, is not necessarily to any electricity
Source is not necessarily to special cigarette sense/temperature detector, without complicated equipment and pipeline；Microcapsules self-extinguishing agent of the invention, collection
Detection, control, starting, fire extinguishing unit are in one, and structure is simple, occupy little space, fire-fighting safety is rapid, maintenance cost is low.
2) microcapsules self-extinguishing agent of the invention is particularly suitable for short space early stage fire behavior prevention and control, such as: switchgear, change
Electric cabinet etc., it is only necessary to self-extinguishing agent patch of the invention is pasted on around easy ignition point, that is, early stage fire behavior can be effectively controlled.
3) microcapsules self-extinguishing agent of the invention does not need starting dress without being equipped with conventional detection and control unit
It sets, when fire occurs, which absorbs the heat that the scene of a fire generates, and broken wall reaction occurs, releases extinguishing material, realizes
Automatic fire-extinguishing function will not securely and reliably generate spot fire hidden danger.
4) microcapsules self-extinguishing agent of the invention is due to the high polymer shell using the formation of special covering material, wall material packet
Densification is covered, intensity is high, and durability is good, high humidity function admirable resistant to high temperatures；The resin-coated of use of the invention can carry out multilayer
Cladding, it is ensured that covering material is completely sealed among microcapsules, improves weatherability.
Specific embodiment
It is the specific embodiment of the content of present invention below, for illustrating the skill of the technical problem of being solved in present specification
Art scheme facilitates those skilled in the art understand that the content of present invention, but the realization of technical solution of the present invention is not limited to these
Embodiment.
Embodiment 1
Melamine: formaldehyde=1:1 mass ratio is dissolved by heating as wall material, suitable quantity of water, adjusts PH with 5% sodium hydroxide
=8-9 reacts 1 hour in 70 degree of water-baths, obtains sticky bright melamino-formaldehyde prepolymer solution, will be with melamine
The perfluor hexanone that mass ratio is 1:2 is core material, high in the presence of emulsifier styrene maleic anhydride copolymer with appropriate distilled water
Fast homogeneous is added to after ten minutes in melamino-formaldehyde prepolymer solution, and dilute hydrochloric acid is added and slowly adjusts between PH=2-4, delays
Slowly 60 degree of progress microencapsulations are warming up to react 4 hours, are centrifugated after being adjusted to neutrality up to microcapsules.By prepared micro- glue
Capsule is added to a certain amount of epoxy resin and glass fibre stirs evenly and can be made into fire-extinguishing composite.
Embodiment 2
Urea: formaldehyde=1:1.5 mass ratio is dissolved by heating as wall material, suitable quantity of water, adjusts PH=8.5- with triethanolamine
9.5, it is reacted 1.5 hours in 70 degree of water-baths, obtains sticky bright urea-formaldehyde prepolymer solution, will be 1:2 with urea quality ratio
Perfluorooctane be core material, high speed homogenization is added after ten minutes in the presence of emulsifier sodium lauryl sulfate with appropriate distilled water
Into urea-formaldehyde prepolymer solution, 10% dilute hydrochloric acid is added and slowly adjusts between PH=2-4, is to slowly warm up to 60 degree and carries out micro- glue
Encapsulated is reacted 4 hours, is centrifugated after being adjusted to neutrality up to microcapsules.The microcapsules of preparation be added to a certain amount of gelatin solution and
It is stirred evenly in aluminium hydroxide and obtains fire-extinguishing composite
Embodiment 3
Using melamine: urea: formaldehyde mass ratio is 1:1:1 as wall material, is dissolved by heating with appropriate distilled water, with three second
Hydramine adjusts PH=8.5, reacts 1.5 hours in 70 degree of water-baths, obtains sticky bright melamine urea-formaldehyde prepolymer solution,
By be 1:3 with melamine mass ratio dibromotetrafluoromethane be core material, with appropriate distilled water in the presence of emulsifier tween 80
High speed homogenization is added to after ten minutes in melamine urea-formaldehyde prepolymer solution, and ammonium chloride solution is added and slowly adjusts PH=3.5,
It is to slowly warm up to 70 degree of progress microencapsulations to react 4 hours, be centrifugated after being adjusted to neutrality up to microcapsules.The microcapsules of preparation
It is added to stir evenly in a certain amount of silicon rubber and fine silica powder and obtains fire-extinguishing composite.
Embodiment 4
Using urea: melamine: formaldehyde mass ratio is 1.5:1:1 as wall material, and appropriate distilled water dissolves by heating, with three second
Hydramine adjusts PH=9.5, reacts 1 hour in 70 degree of water-baths, obtains sticky bright melamine urea-formaldehyde prepolymer solution, will
The PF 5070 for being 1:4 with melamine mass ratio is core material, with appropriate distilled water in emulsifier tween 80 and detergent alkylate
High speed homogenization is added to after ten minutes in melamine urea-formaldehyde prepolymer solution in the presence of sodium sulfonate, and it is slow that ammonium chloride solution is added
PH=4.0 is adjusted, 70 degree of progress microencapsulations is to slowly warm up to and reacts 4 hours, is centrifugated after being adjusted to neutrality up to microcapsules.
The microcapsules of preparation are added to a certain amount of acrylic resin, is stirred evenly in asbestos fibre and aluminium oxide and obtains fire extinguishing combination
Object.
Embodiment 5
Fire fighting test is done with embodiment 1-4 formula, is respectively fire extinguishing environment with 0.1 cube of distribution box, wiring board, cable,
Carry out fire extinguishing comparative experiments.
2 groups of comparative example of setting:
Comparative example 1: polyureas performed polymer is wall material, and 1,1,2,2- dibromotetrafluoromethane is core material, and mass ratio 1:3 is prepared micro-
Capsule；Appropriate epoxy resin is added in the microcapsules of preparation, is stirred evenly in glass fibre to obtain the final product.
Comparative example 2: base polyurethane prepolymer for use as is wall material, and 1,1,2- trifluorotrichloroethane is core material, and mass ratio 1:5 is prepared micro-
Capsule；By the microcapsules and acrylic resin of preparation, calcium carbonate and glass fibre are stirred evenly to obtain the final product.
Above-described embodiment is only the explanation to the preferred solution of the invention, is not intended to limit the present invention.As long as of the invention
The claimed range of following claims should all be fallen into the variation, modification of above-described embodiment in spirit
It is interior.
Claims (9)
1. a kind of microcapsules self-extinguishing agent, it is characterised in that: the extinguishing chemical includes main fire extinguishing material, microcapsule coated material
Material and auxiliary material；The main fire extinguishing material encapsulated material wraps up and forms microcapsules, and the Microcapsules Size is having a size of 5um
~150um, the covering material are resin-case made of melamine and/or ureaformaldehyde are reacted with formaldehyde.
2. microcapsules self-extinguishing agent according to claim 1, it is characterised in that: the main fire extinguishing material is perfluor third
Ketone, perfluor butanone, perfluor pentanone, perfluor hexanone are perfluoropropane, perfluorinated butane, perflenapent, perflexane, PF 5070, complete
Fluoro-octane, dibromotetrafluoromethane, one of trifluorotrichloroethane or a variety of.
3. microcapsules self-extinguishing agent according to claim 1, it is characterised in that: auxiliary material is macromolecule resin, fibre
One of dimension, inorganic filler are a variety of.
4. microcapsules self-extinguishing agent according to claim 3, it is characterised in that: the macromolecule resin is alkyd tree
Rouge, acrylic resin, epoxy resin, polyurethane resin, polyester resin, silicon rubber, polyvinyl acetate resins, gelatin, polyethers
One of polyalcohol, polyester polyol are a variety of.
5. microcapsules self-extinguishing agent according to claim 3, it is characterised in that: the fiber is glass fibre, asbestos
One of fiber is a variety of.
6. microcapsules self-extinguishing agent according to claim 3, it is characterised in that: the inorganic filler is calcium carbonate, two
One of silica, titanium dioxide, aluminium oxide, aluminium hydroxide are a variety of.
7. microcapsules self-extinguishing agent according to claim 1, it is characterised in that: the microcapsules self-extinguishing agent molding
For en plaque or cable-shaped.
8. microcapsules self-extinguishing agent according to claim 1, it is characterised in that: each component institute in the fire-extinguishing composite
Account for mass percent are as follows:
Main fire extinguishing material 35%~60%
Covering material 25%~40%
Auxiliary material 15%~25%
9. a kind of preparation method of microcapsules self-extinguishing agent, which is characterized in that described method includes following steps:
1) melamine/and/or ureaformaldehyde and formalin and a certain proportion of water are mixed, and adjust its pH value to 8.0~
After 9.0, it is warming up to certain temperature and reacts the prepolymer that resin is made；
2) mix a certain proportion of prepolymer, main fire extinguishing material and water and emulsify the partial size of main fire extinguishing material to 5~
150um obtains monomer emulsions；
3) monomer emulsions are moved into reaction kettle, and its ph value is adjusted between 2~6, rise to 40-80 DEG C, material to be covered is anti-
The microcapsule suspensions of extinguishing material should be obtained completely；
4) it mixes and forms with macromolecule resin, fiber, inorganic filler after being adjusted to neutrality the ph value of microcapsule suspensions, i.e.,
?.
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Application publication date: 20190305 |