CN110305279A - A kind of fire-proof sealing material of cable duct and preparation method thereof - Google Patents
A kind of fire-proof sealing material of cable duct and preparation method thereof Download PDFInfo
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- CN110305279A CN110305279A CN201910718042.1A CN201910718042A CN110305279A CN 110305279 A CN110305279 A CN 110305279A CN 201910718042 A CN201910718042 A CN 201910718042A CN 110305279 A CN110305279 A CN 110305279A
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34922—Melamine; Derivatives thereof
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
- C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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- C08K2201/011—Nanostructured additives
Abstract
The present invention relates to fire proofing material fields, fire proofing material more particularly to a kind of cable duct and preparation method thereof, construction method, the raw material including following parts by weight: component A: 80-160 parts of polyether polyol, 30 parts of polyester polyol, 10 parts of halogen-free flame-retardant polyester polyol, 30-50 parts of microcapsules anti-flaming smoke-inhibiting agents, 10-20 parts of expansion type flame retardants, 5-10 parts of modified Nano compound particles, 3-6 parts of film forming agents, 8-15 parts of pigments and fillers, 8-15 parts of pentanes, 1-6 parts of catalyst, 4-8 parts of foam stabilisers, 1-4 parts of water；B component: 130-220 parts of poly methylene poly phenyl poly isocyanates.Fire-proof sealing material of the invention has the performances such as good fire protection flame retarding ability, adhesive force, weatherability, and not can cause environmental pollution without containing halogen foaming agent.
Description
Technical field
The present invention relates to fire proofing material aspect, fire-proof sealing material and its preparation side more particularly to a kind of cable duct
Method, construction method.
Background technique
With the high speed development of national economy and the quickening of urbanization process, the use of cable is more and more wider in urban distribution network
General, in substation, the system of laying of cable mostly uses cable duct, and cable duct needs cable passing hole in cabling process
Hole.The system of laying of cable duct is easy to bring a series of problems: fire caused by cable self-heating, toy by hole into
Enter cable duct and causes line short to cause fire, and once generation will be with the gap around cable duct Hole for fire
Sprawling, therefore, the hole in cable duct needs to block, and it also requires fire prevention processing is carried out to hole, to prevent fire from passing through
Hole sprawling.Currently, the fireproof blocking mode of cable duct generallys use fire-proof mud or fire retardant module, fire retardant package, back-fire relief plate,
But needing to heat before fire-proof mud construction keeps it soft and cannot be sufficient filling with, and fire retardant module etc. then will appear it can not be complete
The difficulty for meeting bore hole size needs further to be blocked with organic putty.With some epoxy resin of the development of industry, silicone
The birth of glue, polyurethanes plugging material improves the defect drawback of such product, but such product mostly uses halogen to make
Foaming agent generates gas breaks atmosphere and causes environmental pollution, and some European Union member countries have prohibited halogen flame and produced
Application in life；For polyurethanes plugging material, flame retardant property multi-pass crosses adding liquid fire retardant to realize, but is
Reach the physical property that a large amount of adding liquid fire retardants of flame-retardancy requirements will affect plugging material, causes under plugging material quality
Drop.
Summary of the invention
The purpose of the present invention is to solve defects present in existing cable ditch plugging material, in order to solve this technology
Problem, the technical scheme adopted by the invention is that:
A kind of fire-proof sealing material of cable duct, the raw material including following parts by weight: component A: 80-160 parts of polyether polyol, 30
Part polyester polyol, 10 parts of halogen-free flame-retardant polyester polyol, 30-50 parts of microcapsules anti-flaming smoke-inhibiting agents, 10-20 parts of intumescents resistances
Fire agent, 5-10 parts of modified Nano compound particles, 3-6 parts of film forming agents, 8-15 parts of pigments and fillers, 8-15 parts of pentanes, 1-6 parts of catalysis
Agent, 4-8 parts of foam stabilisers, 1-4 parts of water；B component: 130-220 parts of poly methylene poly phenyl poly isocyanates.
Preferably, the microcapsules anti-flaming smoke-inhibiting agent is chitosan microcapsules anti-flaming smoke-inhibiting agent, the production method is as follows:
(1) water and gelatin are sequentially added in agitator tank, are stirred at 50 DEG C and are completely dissolved to gelatin, obtain gelatin solution, it is resulting
The concentration of gelatin is 1.5wt% in gelatin solution；(2) by chitosan, pentaerythrite, bisphenol-A bis- (diphenyl phosphoesters), trimerization
Cyanamide, neopelex, aluminium hydroxide are added to the water, with speed emulsification pretreatment 3 minutes of 2000 rpms, thus
Obtain lotion；(3) resulting lotion is added dropwise in gelatin solution, and its PH is adjusted to 5.0-5.8 with sodium hydroxide solution,
It is stirred to react at 50 DEG C 30 minutes, speed of agitator is 300 rpms, and suspension is made；(4) by resulting suspension ice
Water-bath is cooled to 0-8 DEG C, is slowly added dropwise glutaraldehyde water solution, and with sodium hydroxide solution regulation system PH to 5.0-5.8, maintains
System temperature 0-8 DEG C 30 minutes, then control system temperature is at 45 DEG C, adjusts PH to 5.9-6.2 with sodium hydroxide solution, instead
Microcapsule emulsion is obtained after answering 2-4 hours；(5) tannin of 0.06g/ml is added in obtained microcapsule emulsion, control volume
It is that temperature is stirred to react 6 hours at 45 DEG C, and cooling, centrifugation, filters, is spontaneously dried under room temperature and obtain chitosan microcapsules resistance
Fire smoke suppressant.Contain a large amount of active group on chitosan, interaction can be generated with other components, and then play solidification and make
With, and chitosan microcapsules are by carbon source (chitosan, pentaerythrite), acid source (bisphenol-A is bis- (diphenyl phosphoester)) and gas source (three
Poly cyanamid) it is integrated in one, prepared microcapsules anti-flaming smoke-inhibiting agent can be effectively reduced the heat of release, and significantly inhibit
The release of flue gas；Further, since aluminium hydroxide belongs to inorganic fireproof coating, flame retarding efficiency depends on the more of fire retardant additive amount
It is few, in order to obtain the additive amount of good flame retardant property aluminium hydroxide need be more than 50% additive amount, this makes high molecular material
Processing performance and physical mechanical property receive serious influence, and aluminium hydroxide is added to chitosan microcapsules by the present invention
In, the anti-flammability of aluminium hydroxide is on the one hand realized, the performance of high molecular material is on the other hand nor affected on.
Preferably, the expansion type flame retardant includes the raw material of following components: pentaerythritol phosphate, diphenyl-methane two
Isocyanates, cyclodextrin, lignin, melamine and expansible graphite.Expansion type flame retardant is main fire-retardant member with C, P, N
Element is halogen-free, and will not generate the toxic and harmful gas being hazardous to the human body, and in the case of fire, pentaerythritol phosphate is first
First dehydration generates phosphoric acid, and reacts with the hydroxyl on cyclodextrin, lignin, discharges hydrone；Meanwhile melamine is in fire
Non-flammable gases are decomposed at a temperature of calamity, and lignin, cyclodextrin etc. acutely expand under the action of non-flammable gases, temperature after
Height of continuing rising, material is further esterified, dehydration carbonization, ultimately forms porous, fine and close sticky layer of charcoal, can effectively completely cut off air,
Completely cut off heat source, plays good anti-flammability.The size of added expansible graphite be 40-60 mesh, expansion multiple >=200 times,
When encountering fire, expansible graphite will expand, but the graphite meeting phase flying dust after expanding equally flies out, so and Ji Wusi
The expansion type flame retardants such as alcohol phosphate are mutually used in combination, so that it can generate one layer of firm foamed char simultaneously when heated,
Prevent the propagation of the heat of flame.
Preferably, the modified Nano compound particle, which is negative, is loaded with the mesohole nano-titanium dioxide particle of fire retardant, institute
The film forming agent stated is the mixing of polyvinyl acetate emulsion, dipropylene, amino resins, allyl resin and tar resin
Object, the pigments and fillers are titanium dioxide, melamine, kaolinic mixture.Fire prevention can be improved in modified Nano compound particle
The performances such as adhesive force, shock resistance, the flexibility of plugging material can also improve ageing-resistant, the corrosion resistance of fire-proof sealing material
Can, and since modified Nano compound particle is using the TiO 2 particles with certain flame retardant property, and titanium dioxide
Particle has loaded fire retardant, therefore modified Nano compound particle inherently has stronger flame retardant property.Added pigments and fillers
The dicoration of pipeline can not only be increased, the mechanical strength of fire-proof sealing material, adhesive force, antiseptic property, resistance to can also be improved
Photosensitiveness, rheological characteristic and weather resistance.
Preferably, the polyether polyol is YD-4110, YD8239G, YD1050, YD401P, YD6205, YD450BC
Deng one or more of mixtures, these polyether polyol are purchased from Hebei Yadong Chemical Co., Ltd.；The polyester is more
First alcohol is one or both of HF-3152, HF-4004 mixture, and HF-3152 and HF-4004 are purchased from the industry of Hengfeng polyurethane
Co., Ltd；The halogen-free flame-retardant polyester polyol is BY3009T, is purchased from one hundred source chemical industry；The foam stabiliser is
The mixture of one or more of AK8830, AK8863, AK8825, foam stabiliser are purchased from Dehua Mei Si, Jiangsu and learn share
Co., Ltd.
Preferably, the average hydroxyl value value of the polyalcohol is 380mgKOH/g.
Preferably, the catalyst is solid amine, N, N- dimethyl cyclohexyl amine, bis- (2- dimethylaminoethyl) ethers, three second
The mixture of one or more of amine, triethanolamine and 2,6- diethyl -4- methylaniline.
The modified Nano compound particle the preparation method comprises the following steps: meso-porous titanium dioxide titanium particle is added to the water, then will
Fire retardant is added to the water, and is then ultrasonically treated, and obtains the mesoporous TiO 2 that load has fire retardant after filtering drying.
On the one hand modified Nano compound particle obtained by this method accelerates fire retardant and enters in the micropore of mesoporous TiO 2
On the other hand speed is conducive to fire retardant and is evenly distributed in the micropore of mesoporous TiO 2, avoid fire retardant distribution not
The case where uniform or block micro pores.
A kind of preparation method of the fire-proof sealing material of cable duct, the preparation method of component A is the following steps are included: (1) makes
Standby microcapsules anti-flaming smoke-inhibiting agent；(2) expansion type flame retardant, modified Nano compound particle, film forming agent, pigments and fillers are crushed grind respectively
Mill, drying；(3)) be separately added by weight microcapsules anti-flaming smoke-inhibiting agent, expansion type flame retardant, modified Nano compound particle, at
Film, pigments and fillers, polyether polyol, catalyst are uniformly mixed and stir 0.5-1.5 hours at 30-40 DEG C, then be placed in shearing
It is sheared in machine 8-15 minutes, pentane is then added and is uniformly mixing to obtain component A.
A kind of construction method of the fire-proof sealing material of cable duct, comprising the following steps: (1) work that cable duct is blocked
Face carries out cleaning treatment, makes the working face of the closure without greasy dirt, free from admixture；(2) after working face is dry, according to component A and group
The ratio that the weight ratio of B is 1:1.0-1.8 is divided to carry out construction processing to working face, the construction processing mode is according to working face
Situations such as size, fire-proof sealing material reaction speed, selects mechanically spraying, pouring or prefabricated；(3) working face is ripe at normal temperature
Change drying.
Compared with the prior art, the present invention has the following advantages: the present invention is using chitosan microcapsules anti-flaming smoke-inhibiting agent, swollen
The mode that swollen type fire retardant, inorganic fire retardants, halogen-free flame-retardant polyester polyol combine promotes polyurethanes fireproof blocking material
The fire resistance property of material.Wherein contain a large amount of active group on chitosan, interaction, Jin Erqi can be generated with other components
To solidification, and carbon source, acid source and gas source are integrated in one by chitosan microcapsules, prepared microcapsules anti-flaming smoke-inhibiting agent energy
The heat of release is enough effectively reduced, and significantly inhibits the release of flue gas；Pass through addition pigments and fillers and the compound grain of nano modification
Son improves the performances such as adhesive force and the weatherability of fire-proof sealing material.Added expansible graphite, pentaerythritol phosphate
Equal expansion type flame retardants are mutually used in combination, so that it can generate one layer of firm foamed char simultaneously when heated, prevent flame
Heat propagation.Fire-proof sealing material of the invention has the performances such as good fire protection flame retarding ability, adhesive force, weatherability,
And it not can cause environmental pollution without containing halogen foaming agent.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.Following embodiment is only used for more
Add and clearly demonstrate technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Specific embodiments of the present invention are: a kind of fire-proof sealing material of cable duct, the raw material including following parts by weight:
Component A: 80-160 parts of polyether polyol, 30 parts of polyester polyol, 10 parts of halogen-free flame-retardant polyester polyol, 30-50 parts of micro- glue
Capsule anti-flaming smoke-inhibiting agent, 10-20 part expansion type flame retardant, 5-10 parts of modified Nano compound particles, 3-6 parts of film forming agents, 8-15 parts of face
Filler, 8-15 part pentane, 1-6 parts of catalyst, 4-8 parts of foam stabilisers, 1-4 parts of water；B component: 130-220 parts of polymethylenes
Polyphenyl polyisocyanate.Polyether polyol is YD-4110, YD8239G, YD1050, YD401P, YD6205, YD450BC's etc.
One or more of mixtures, these polyether polyol are purchased from Hebei Yadong Chemical Co., Ltd., the hydroxyl value of polyether polyol
Average value is preferably 380mgKOH/g, this foam formed after component A and B component are solidified has the moderate degree of cross linking, no
Phenomena such as cold cracking and dusting can occur in use, there is better water resistance and resistance to mildew；Polyester polyol
For one or both of HF-3152, HF-4004 mixture, HF-3152 and HF-4004 are limited purchased from the industry of Hengfeng polyurethane
Company can reduce cost by adding polyester polyol, and improve the flame retardant property of system；Halogen-free flame-retardant polyester polyols
Alcohol is BY3009T, is purchased from one hundred source chemical industry, enhances the fire-retardant of system by adding halogen-free flame-retardant polyester polyol BY3009T
Performance, and since BY3009T is halogen-free, it not can cause environmental pollution；Foam stabiliser be AK8830, AK8863,
The addition of the mixture foam stabiliser of one or more of AK8825 enables to fire-proof sealing material not collapse in foaming
Bubble, uniform foam cell, foam stabiliser are purchased from Jiangsu Maysta Chemical Co., Ltd.；Catalyst is solid amine, N, N- diformazan
One in basic ring hexylamine, bis- (2- dimethylaminoethyl) ethers, triethylamine, triethanolamine and 2,6- diethyl -4- methylaniline
Kind or several mixtures, catalyst can be according to the reaction speeds of construction demand control system.
Microcapsules anti-flaming smoke-inhibiting agent is chitosan microcapsules anti-flaming smoke-inhibiting agent, the production method is as follows: (1) in agitator tank
Water and gelatin are sequentially added, stirs at 50 DEG C and is completely dissolved to gelatin, obtains gelatin solution, gelatin in resulting gelatin solution
Concentration be 1.5wt%；(2) by chitosan, pentaerythrite, bisphenol-A bis- (diphenyl phosphoesters), melamine, detergent alkylate
Sodium sulfonate is added to the water according to the ratio that weight ratio is 4:1:1:1:0.1, is divided with 2000 rpms of speed emulsification pretreatment 3
Clock, to obtain lotion；(3) resulting lotion is added dropwise in gelatin solution, and with 5% sodium hydroxide solution by its PH tune
It to 5.0-5.8, is stirred to react at 50 DEG C 30 minutes, speed of agitator is 300 rpms, and suspension is made；It (4) will be resulting
Suspension is cooled to 0-8 DEG C with ice-water bath, glutaraldehyde water solution is slowly added dropwise, and extremely with 5% sodium hydroxide solution regulation system PH
5.0-5.8, maintenance system temperature 0-8 DEG C 30 minutes, then control system temperature is at 45 DEG C, is adjusted with 5% sodium hydroxide solution
PH to 5.9-6.2, reaction obtained microcapsule emulsion after 2-4 hours；(5) obtained microcapsules are added in the tannin of 0.06g/ml
In lotion, control system temperature is stirred to react 6 hours at 45 DEG C, and cooling, centrifugation, suction filtration, is spontaneously dried and is obtained under room temperature
Chitosan microcapsules anti-flaming smoke-inhibiting agent.Contain a large amount of active group on chitosan, interaction can be generated with other components,
And then play solidification, and chitosan microcapsules are by carbon source (chitosan, pentaerythrite), the acid source (bis- (diphenylphosphines of bisphenol-A
Acid esters)) and gas source (melamine) be integrated in one, prepared microcapsules anti-flaming smoke-inhibiting agent can be effectively reduced the heat of release
Amount, and significantly inhibit the release of flue gas；Further, since aluminium hydroxide belongs to inorganic fireproof coating, flame retarding efficiency depends on
In the number of fire retardant additive amount, in order to obtain the additive amount of good flame retardant property aluminium hydroxide need be more than 50% addition
Amount, this makes the processing performance of high molecular material and physical mechanical property receive serious influence, and the present invention is by hydroxide
Aluminium is added in chitosan microcapsules, on the one hand realizes the anti-flammability of aluminium hydroxide, on the other hand nor affects on macromolecule material
The performance of material.
Expansion type flame retardant includes the raw material of following components: pentaerythritol phosphate, '-diphenylmethane diisocyanate, ring paste
Essence, lignin, melamine and expansible graphite.Expansion type flame retardant, for main ignition-proof element, is halogen-free with C, P, N,
The toxic and harmful gas being hazardous to the human body will not be generated, in the case of fire, pentaerythritol phosphate is dehydrated first generates phosphorus
Acid, and react with the hydroxyl on cyclodextrin, lignin, discharge hydrone；Meanwhile melamine decomposes under fire temperature
For non-flammable gases, and lignin, cyclodextrin etc. acutely expand under the action of non-flammable gases, and temperature continues to increase, material
Further esterification, dehydration carbonization ultimately form porous, fine and close sticky layer of charcoal, can effectively completely cut off air, isolation heat source, rise
To good anti-flammability.The size of added expansible graphite is 40-60 mesh, and expansion multiple >=200 times are encountering fire
When, expansible graphite will expand, but the graphite after expanding can phase flying dust equally fly out, so with pentaerythritol phosphate etc.
Expansion type flame retardant is mutually used in combination, so that it can generate one layer of firm foamed char simultaneously when heated, prevents flame
The propagation of heat.
Modified Nano compound particle, which is negative, is loaded with the mesohole nano-titanium dioxide particle of fire retardant, modified Nano compound particle
The performances such as adhesive force, shock resistance, the flexibility of fire-proof sealing material can be improved, the resistance to old of fire-proof sealing material can also be improved
Change, corrosion resistance, and since modified Nano compound particle is using the TiO 2 particles with certain flame retardant property,
And TiO 2 particles have loaded fire retardant, therefore modified Nano compound particle inherently has stronger flame retardant property.It is modified
Nano-complex particle the preparation method comprises the following steps: meso-porous titanium dioxide titanium particle is added to the water, then fire retardant triphenyl phosphate is added
Enter into water, be then ultrasonically treated, obtains the mesoporous TiO 2 that load has triphenyl phosphate after filtering drying, it is this
On the one hand accelerate fire retardant triphenyl phosphate enters the micro- of mesoporous TiO 2 to modified Nano compound particle obtained by method
On the other hand speed in hole is conducive to fire retardant triphenyl phosphate and is evenly distributed in the micropore of mesoporous TiO 2, keeps away
Exempt from fire retardant triphenyl phosphate to be unevenly distributed or the case where block micro pores.
Film forming agent is polyvinyl acetate emulsion, dipropylene, amino resins, allyl resin and tar resin
Equal quality ratio mixture, pigments and fillers be titanium dioxide, melamine, kaolin equal quality ratio mixture, added face
Filler can not only increase the dicoration of pipeline, can also improve mechanical strength, adhesive force, the anti-corrosive properties of fire-proof sealing material
Energy, light resistance, rheological characteristic and weather resistance.
The preparation method of the component A of the fire-proof sealing material of cable duct is the following steps are included: (1) prepares the fire-retardant suppression of microcapsules
Fumicants；(2) expansion type flame retardant, modified Nano compound particle, film forming agent, pigments and fillers smashed and ground respectively, dried；(3) it presses
Parts by weight are separately added into microcapsules anti-flaming smoke-inhibiting agent, expansion type flame retardant, modified Nano compound particle, film forming agent, pigments and fillers, gather
Ethoxylated polyhydric alcohol, catalyst are uniformly mixed and stir 0.5-1.5 hours at 30-40 DEG C, then are placed in cutter and shear 8-15 points
Then clock is added pentane and is uniformly mixing to obtain component A.
A kind of construction method of the fire-proof sealing material of cable duct, comprising the following steps: (1) work that cable duct is blocked
Face carries out cleaning treatment, makes the working face of the closure without greasy dirt, free from admixture；(2) after working face is dry, according to component A and group
The ratio that the weight ratio of point B is 1:1.0-1.8 carries out construction processing to working face, construction processing mode according to working face size,
Fire-proof sealing material reacts situations such as speed and selects mechanically spraying, pouring or prefabricated；(3) working face cures dry at normal temperature
It is dry.It pours: if working face is smaller and can be realized pouring, during on-site construction, being mixed component A and component B using electric hand drill
It closes, and mixed component is poured into working face by hand；Spraying: when site operation, component A and component B are separately added into spray
In painting machine, spraying is performed in multiple times to working face using flush coater, and stiffening plate can be selected and reinforce to working face；It is prefabricated: if work
It can not achieve pouring as face, then component A and component B can be mixed to simultaneously high-speed stirred 30 in factory floor in a bulk container
Second, it is subsequently poured into mold and reacts molding, mold is removed after curing, needs to cut according to construction by moulded products with cutting machine
For several fritters, in use, this fritter is built in working face.
Embodiment 1
A kind of fire-proof sealing material of cable duct, the raw material including following parts by weight: component A: 60 parts of YD-4110,10 parts
YD1050,10 parts of YD401P, 15 parts of HF-3152,15 parts of HF-4004,10 parts of BY3009T, 30 parts of microcapsules anti-flaming smoke-inhibiting agents, 10
Part expansion type flame retardant, 5 parts of modified Nano compound particles, 3 parts of film forming agents, 8 parts of pigments and fillers, 8 parts of pentanes, 1 part of solid amine, 2 parts
AK8830,2 parts of AK8863,1 part of water；B component: 130 parts of poly methylene poly phenyl poly isocyanates.
Microcapsules anti-flaming smoke-inhibiting agent is chitosan microcapsules anti-flaming smoke-inhibiting agent, the production method is as follows: (1) in agitator tank
Water and gelatin are sequentially added, stirs at 50 DEG C and is completely dissolved to gelatin, obtains gelatin solution, gelatin in resulting gelatin solution
Concentration be 1.5wt%；(2) by chitosan, pentaerythrite, bisphenol-A bis- (diphenyl phosphoesters), melamine, detergent alkylate
Sodium sulfonate, aluminium hydroxide are added to the water according to the ratio that weight ratio is 4:1:1:1:0.1:3, are cut with 2000 rpms of speed
Emulsification 3 minutes is cut, to obtain lotion；(3) resulting lotion is added dropwise in gelatin solution, and with 5% sodium hydroxide solution
Its PH is adjusted to 5.0, is stirred to react at 50 DEG C 30 minutes, speed of agitator is 300 rpms, and suspension is made；(4) by institute
Suspension be cooled to 0 DEG C with ice-water bath, be slowly added dropwise glutaraldehyde water solution, and with 5% sodium hydroxide solution regulation system PH
To 5.0, maintenance system temperature 0 DEG C 30 minutes, then control system temperature is at 45 DEG C, with 5% sodium hydroxide solution adjust PH to
5.9, reaction obtained microcapsule emulsion after 2 hours；(5) tannin of 0.06g/ml is added in obtained microcapsule emulsion, control
System temperature processed is stirred to react 6 hours at 45 DEG C, and cooling, centrifugation, suction filtration, is spontaneously dried under room temperature and is obtained the micro- glue of chitosan
Capsule anti-flaming smoke-inhibiting agent.Expansion type flame retardant includes the raw material of following components: pentaerythritol phosphate, diphenylmethane diisocyanates
Ester, cyclodextrin, lignin, melamine and expansion multiple are the expansible graphite that 200 times of mesh numbers are 40 mesh, by weight
Ratio is 1:1:0.5:0.5:1:2.Modified Nano compound particle, which is negative, is loaded with the mesohole nano-titanium dioxide particle of fire retardant, at
Film is polyvinyl acetate emulsion, dipropylene, amino resins, allyl resin and the tar resin of equal quality ratio
Mixture, pigments and fillers be equal quality ratio titanium dioxide, melamine, kaolinic mixture.
Modified Nano compound particle the preparation method comprises the following steps: meso-porous titanium dioxide titanium particle is added to the water, then by fire retardant
Triphenyl phosphate is added to the water, and is then ultrasonically treated, and obtaining load after suction filtration is dry has the mesoporous of triphenyl phosphate
Titanium dioxide.
The preparation method of component A is the following steps are included: (1) prepares microcapsules anti-flaming smoke-inhibiting agent；(2) by expansion type flame-retarding
Agent, modified Nano compound particle, film forming agent, pigments and fillers smash and grind respectively, dry；(3) it is separately added into microcapsules by weight
Anti-flaming smoke-inhibiting agent, expansion type flame retardant, modified Nano compound particle, film forming agent, pigments and fillers, polyether polyol, catalyst, mixing
It uniformly and is stirred 1.5 hours at 30 DEG C, then is placed in cutter and shears 15 minutes, pentane is then added and is uniformly mixing to obtain
Ah's component A.
In use, to cable duct block working face carry out cleaning treatment, make the working face of the closure without greasy dirt, without miscellaneous
Matter；After working face is dry, during on-site construction, component A and component B is mixed using electric hand drill, and by mixed component
It is poured into working face by hand；Working face cures drying at normal temperature.
Embodiment 2
A kind of fire-proof sealing material of cable duct, the raw material including following parts by weight: component A: 80 parts of YD-4110,20 parts
YD4110P, 40 parts of YD6205,20 parts of YD1050,10 parts of HF-3152,20 parts of HF-4004,10 parts of BY3009T, 50 parts of microcapsules
Anti-flaming smoke-inhibiting agent, 20 parts of expansion type flame retardants, 10 parts of modified Nano compound particles, 6 parts of film forming agents, 15 parts of pigments and fillers, 15 parts just
Pentane, 1 part of solid amine, 1 part of N, N- dimethyl cyclohexyl amine, 1 part of bis- (2- dimethylaminoethyl) ethers, 1 part of triethylamine, 1 part of three ethyl alcohol
In amine, 1 part of 2,6- diethyl -4- methylaniline, 4 parts of AK8830,2 parts of AK8863,2 parts of AK8825,4 parts of water；B component: 220 parts
Poly methylene poly phenyl poly isocyanate.
Microcapsules anti-flaming smoke-inhibiting agent is chitosan microcapsules anti-flaming smoke-inhibiting agent, the production method is as follows: (1) in agitator tank
Water and gelatin are sequentially added, stirs at 50 DEG C and is completely dissolved to gelatin, obtains gelatin solution, gelatin in resulting gelatin solution
Concentration be 1.5wt%；(2) by chitosan, pentaerythrite, bisphenol-A bis- (diphenyl phosphoesters), melamine, detergent alkylate
Sodium sulfonate, aluminium hydroxide are added to the water according to the ratio that weight ratio is 4:1:1:1:0.1:3, are cut with 2000 rpms of speed
Emulsification 3 minutes is cut, to obtain lotion；(3) resulting lotion is added dropwise in gelatin solution, and with 5% sodium hydroxide solution
Its PH is adjusted to 5.8, is stirred to react at 50 DEG C 30 minutes, speed of agitator is 300 rpms, and suspension is made；(4) by institute
Suspension be cooled to 8 DEG C with ice-water bath, be slowly added dropwise glutaraldehyde water solution, and with 5% sodium hydroxide solution regulation system PH
To 5.8, maintenance system temperature 8 DEG C 30 minutes, then control system temperature is at 45 DEG C, with 5% sodium hydroxide solution adjust PH to
6.2, reaction obtained microcapsule emulsion after 4 hours；(5) tannin of 0.06g/ml is added in obtained microcapsule emulsion, control
System temperature processed is stirred to react 6 hours at 45 DEG C, and cooling, centrifugation, suction filtration, is spontaneously dried under room temperature and is obtained the micro- glue of chitosan
Capsule anti-flaming smoke-inhibiting agent.Expansion type flame retardant includes the raw material of following components: pentaerythritol phosphate, diphenylmethane diisocyanates
Ester, cyclodextrin, lignin, melamine and expansion multiple are the expansible graphite that 200 times of mesh numbers are 60 mesh, by weight
Ratio is 1:1:0.5:0.5:1:2.Modified Nano compound particle, which is negative, is loaded with the mesohole nano-titanium dioxide particle of fire retardant, changes
Property nano-complex particle the preparation method is the same as that of Example 1, film forming agent be equal quality ratio polyvinyl acetate emulsion, dipropyl two
Alcohol butyl ether, amino resins, allyl resin and tar resin mixture, pigments and fillers be equal quality ratio titanium dioxide, trimerization
Cyanamide, kaolinic mixture.
The preparation method of component A is the following steps are included: (1) prepares microcapsules anti-flaming smoke-inhibiting agent；(2) by expansion type flame-retarding
Agent, modified Nano compound particle, film forming agent, pigments and fillers smash and grind respectively, dry；(3) it is separately added into microcapsules by weight
Anti-flaming smoke-inhibiting agent, expansion type flame retardant, modified Nano compound particle, film forming agent, pigments and fillers, polyether polyol, catalyst, mixing
It uniformly and is stirred 0.5 hour at 40 DEG C, then is placed in cutter and shears 8 minutes, pentane is then added and is uniformly mixing to obtain A
Component.
In use, to cable duct block working face carry out cleaning treatment, make the working face of the closure without greasy dirt, without miscellaneous
Matter；After working face is dry, component A and component B are separately added into flush coater, working face is performed in multiple times using flush coater
Spraying, and stiffening plate can be selected, working face is reinforced；Working face cures drying at normal temperature.
Embodiment 3
A kind of fire-proof sealing material of cable duct, the raw material including following parts by weight: component A: 50 parts of YD-4110,10 parts
YD8239G, 10 parts of YD1050,10 parts of YD401P, 10 parts of YD6205,10 parts of YD450BC, 30 parts of HF-3152,10 parts of BY3009T,
35 parts of microcapsules anti-flaming smoke-inhibiting agents, 12 parts of expansion type flame retardants, 6 parts of modified Nano compound particles, 4 parts of film forming agents, 9 parts of face are filled out
Material, 9 parts of pentanes, 2 parts of N, N- dimethyl cyclohexyl amine, 2 parts of AK8830,1 part of AK8863,1 part of AK8825,2 parts of water；B component:
150 parts of poly methylene poly phenyl poly isocyanates.
Microcapsules anti-flaming smoke-inhibiting agent is chitosan microcapsules anti-flaming smoke-inhibiting agent, the production method is as follows: (1) in agitator tank
Water and gelatin are sequentially added, stirs at 50 DEG C and is completely dissolved to gelatin, obtains gelatin solution, gelatin in resulting gelatin solution
Concentration be 1.5wt%；(2) by chitosan, pentaerythrite, bisphenol-A bis- (diphenyl phosphoesters), melamine, detergent alkylate
Sodium sulfonate, aluminium hydroxide are added to the water according to the ratio that weight ratio is 4:1:1:1:0.1:3, are cut with 2000 rpms of speed
Emulsification 3 minutes is cut, to obtain lotion；(3) resulting lotion is added dropwise in gelatin solution, and with 5% sodium hydroxide solution
Its PH is adjusted to 5.1, is stirred to react at 50 DEG C 30 minutes, speed of agitator is 300 rpms, and suspension is made；(4) by institute
Suspension be cooled to 3 DEG C with ice-water bath, be slowly added dropwise glutaraldehyde water solution, and with 5% sodium hydroxide solution regulation system PH
To 5.1, maintenance system temperature 3 DEG C 30 minutes, then control system temperature is at 45 DEG C, with 5% sodium hydroxide solution adjust PH to
6.0, reaction obtained microcapsule emulsion after 2 hours；(5) tannin of 0.06g/ml is added in obtained microcapsule emulsion, control
System temperature processed is stirred to react 6 hours at 45 DEG C, and cooling, centrifugation, suction filtration, is spontaneously dried under room temperature and is obtained the micro- glue of chitosan
Capsule anti-flaming smoke-inhibiting agent.Expansion type flame retardant includes the raw material of following components: pentaerythritol phosphate, diphenylmethane diisocyanates
Ester, cyclodextrin, lignin, melamine and expansion multiple are the expansible graphite that 250 times of mesh numbers are 45 mesh, by weight
Ratio is 1:1:0.5:0.5:1:2.Modified Nano compound particle, which is negative, is loaded with the mesohole nano-titanium dioxide particle of fire retardant, changes
Property nano-complex particle the preparation method is the same as that of Example 1, film forming agent be equal quality ratio polyvinyl acetate emulsion, dipropyl two
Alcohol butyl ether, amino resins, allyl resin and tar resin mixture, pigments and fillers be equal quality ratio titanium dioxide, trimerization
Cyanamide, kaolinic mixture.
The preparation method of component A is the following steps are included: (1) prepares microcapsules anti-flaming smoke-inhibiting agent；(2) by expansion type flame-retarding
Agent, modified Nano compound particle, film forming agent, pigments and fillers smash and grind respectively, dry；(3) it is separately added into microcapsules by weight
Anti-flaming smoke-inhibiting agent, expansion type flame retardant, modified Nano compound particle, film forming agent, pigments and fillers, polyether polyol, catalyst, mixing
It uniformly and is stirred 0.8 hour at 33 DEG C, then is placed in cutter and shears 10 minutes, pentane is then added and is uniformly mixing to obtain
Component A.
In use, component A and component B mixed in a bulk container in factory floor and high-speed stirred 30 seconds, so
After pour into mold react molding, mold is removed after curing, if with cutting machine by moulded products according to construction need be cut into
Dry fritter；Cleaning treatment is carried out to the working face that cable duct blocks, makes the working face of the closure without greasy dirt, free from admixture；It will be prefabricated
Fritter build in working face.
Embodiment 4
A kind of fire-proof sealing material of cable duct, the raw material including following parts by weight: component A: 90 parts of YD4110,10 parts
YD1050,10 parts of YD401P, 10 parts of YD6205,30 parts of HF-4004,10 parts of BY3009T, 40 parts of microcapsules anti-flaming smoke-inhibiting agents, 15
Part expansion type flame retardant, 8 parts of modified Nano compound particles, 5 parts of film forming agents, 10 parts of pigments and fillers, 10 parts of pentanes, 2 parts of bis- (2- bis-
Methylaminoethyl) ether, 2 parts of triethylamines, 2 parts of AK8830,2 parts of AK8863,2 parts of AK8825,3 parts of water；B component: methylene more than 180 parts
Quito polyphenyl polyisocyanate.
Microcapsules anti-flaming smoke-inhibiting agent is chitosan microcapsules anti-flaming smoke-inhibiting agent, the production method is as follows: (1) in agitator tank
Water and gelatin are sequentially added, stirs at 50 DEG C and is completely dissolved to gelatin, obtains gelatin solution, gelatin in resulting gelatin solution
Concentration be 1.5wt%；(2) by chitosan, pentaerythrite, bisphenol-A bis- (diphenyl phosphoesters), melamine, detergent alkylate
Sodium sulfonate, aluminium hydroxide are added to the water according to the ratio that weight ratio is 4:1:1:1:0.1:3, are cut with 2000 rpms of speed
Emulsification 3 minutes is cut, to obtain lotion；(3) resulting lotion is added dropwise in gelatin solution, and with 5% sodium hydroxide solution
Its PH is adjusted to 5.6, is stirred to react at 50 DEG C 30 minutes, speed of agitator is 300 rpms, and suspension is made；(4) by institute
Suspension be cooled to 6 DEG C with ice-water bath, be slowly added dropwise glutaraldehyde water solution, and with 5% sodium hydroxide solution regulation system PH
To 5.6, maintenance system temperature 6 DEG C 30 minutes, then control system temperature is at 45 DEG C, with 5% sodium hydroxide solution adjust PH to
6.1, reaction obtained microcapsule emulsion after 3 hours；(5) tannin of 0.06g/ml is added in obtained microcapsule emulsion, control
System temperature processed is stirred to react 6 hours at 45 DEG C, and cooling, centrifugation, suction filtration, is spontaneously dried under room temperature and is obtained the micro- glue of chitosan
Capsule anti-flaming smoke-inhibiting agent.Expansion type flame retardant includes the raw material of following components: pentaerythritol phosphate, diphenylmethane diisocyanates
Ester, cyclodextrin, lignin, melamine and expansion multiple are the expansible graphite that 200 times of mesh numbers are 50 mesh, by weight
Ratio is 1:1:0.5:0.5:1:2.Modified Nano compound particle, which is negative, is loaded with the mesohole nano-titanium dioxide particle of fire retardant, changes
Property nano-complex particle the preparation method is the same as that of Example 1, film forming agent be equal quality ratio polyvinyl acetate emulsion, dipropyl two
Alcohol butyl ether, amino resins, allyl resin and tar resin mixture, pigments and fillers be equal quality ratio titanium dioxide, trimerization
Cyanamide, kaolinic mixture.
The preparation method of component A is the following steps are included: (1) prepares microcapsules anti-flaming smoke-inhibiting agent；(2) by expansion type flame-retarding
Agent, modified Nano compound particle, film forming agent, pigments and fillers smash and grind respectively, dry；(3) it is separately added into microcapsules by weight
Anti-flaming smoke-inhibiting agent, expansion type flame retardant, modified Nano compound particle, film forming agent, pigments and fillers, polyether polyol, catalyst, mixing
It uniformly and is stirred 1.2 hours at 35 DEG C, then is placed in cutter and shears 12 minutes, pentane is then added and is uniformly mixing to obtain
Component A.
In use, to cable duct block working face carry out cleaning treatment, make the working face of the closure without greasy dirt, without miscellaneous
Matter；After working face is dry, component A and component B is mixed using electric hand drill, and mixed component is poured into work by hand
Face；Working face cures drying at normal temperature.
Embodiment 5
A kind of fire-proof sealing material of cable duct, the raw material including following parts by weight: component A: 90 parts of YD-4110,20 parts
YD8239G, 20 parts of YD1050,20 parts of YD450BC, 10 parts of HF-3152,20 parts of HF-4004,10 parts of BY3009T, 45 parts of microcapsules
Anti-flaming smoke-inhibiting agent, 18 parts of expansion type flame retardants, 8 parts of modified Nano compound particles, 6 parts of film forming agents, 13 parts of pigments and fillers, 13 parts positive penta
Alkane, 3 parts of 2,6- diethyl -4- methylanilines, 2 parts of N, N- dimethyl cyclohexyl amine, 2 parts of AK8830,2 parts of AK8863,2 parts
AK88256,3.5 parts of water；B component: 200 parts of poly methylene poly phenyl poly isocyanates.
Microcapsules anti-flaming smoke-inhibiting agent is chitosan microcapsules anti-flaming smoke-inhibiting agent, the production method is as follows: (1) in agitator tank
Water and gelatin are sequentially added, stirs at 50 DEG C and is completely dissolved to gelatin, obtains gelatin solution, gelatin in resulting gelatin solution
Concentration be 1.5wt%；(2) by chitosan, pentaerythrite, bisphenol-A bis- (diphenyl phosphoesters), melamine, detergent alkylate
Sodium sulfonate, aluminium hydroxide are added to the water according to the ratio that weight ratio is 4:1:1:1:0.1:3, are cut with 2000 rpms of speed
Emulsification 3 minutes is cut, to obtain lotion；(3) resulting lotion is added dropwise in gelatin solution, and with 5% sodium hydroxide solution
Its PH is adjusted to 5.6, is stirred to react at 50 DEG C 30 minutes, speed of agitator is 300 rpms, and suspension is made；(4) by institute
Suspension be cooled to 7 DEG C with ice-water bath, be slowly added dropwise glutaraldehyde water solution, and with 5% sodium hydroxide solution regulation system PH
To 5.6, maintenance system temperature 7 DEG C 30 minutes, then control system temperature is at 45 DEG C, with 5% sodium hydroxide solution adjust PH to
6.1, reaction obtained microcapsule emulsion after 2.5 hours；(5) tannin of 0.06g/ml is added in obtained microcapsule emulsion,
Control system temperature is stirred to react 6 hours at 45 DEG C, and cooling, centrifugation, suction filtration, and it is micro- to obtain chitosan for natural drying under room temperature
Capsule anti-flaming smoke-inhibiting agent.Expansion type flame retardant includes the raw material of following components: pentaerythritol phosphate, diphenylmethane diisocyanates
Ester, cyclodextrin, lignin, melamine and expansion multiple are the expansible graphite that 200 times of mesh numbers are 55 mesh, by weight
Ratio is 1:1:0.5:0.5:1:2.Modified Nano compound particle, which is negative, is loaded with the mesohole nano-titanium dioxide particle of fire retardant, changes
Property nano-complex particle the preparation method is the same as that of Example 1, film forming agent be equal quality ratio polyvinyl acetate emulsion, dipropyl two
Alcohol butyl ether, amino resins, allyl resin and tar resin mixture, pigments and fillers be equal quality ratio titanium dioxide, trimerization
Cyanamide, kaolinic mixture.
The preparation method of component A is the following steps are included: (1) prepares microcapsules anti-flaming smoke-inhibiting agent；(2) by expansion type flame-retarding
Agent, modified Nano compound particle, film forming agent, pigments and fillers smash and grind respectively, dry；(3) it is separately added into microcapsules by weight
Anti-flaming smoke-inhibiting agent, expansion type flame retardant, modified Nano compound particle, film forming agent, pigments and fillers, polyether polyol, catalyst, mixing
It uniformly and is stirred 0.8 hour at 38 DEG C, then is placed in cutter and shears 13 minutes, pentane is then added and is uniformly mixing to obtain
Component A.
In use, component A and component B mixed in a bulk container in factory floor and high-speed stirred 30 seconds, so
After pour into mold react molding, mold is removed after curing, if with cutting machine by moulded products according to construction need be cut into
Dry fritter；Cleaning treatment is carried out to the working face that cable duct blocks, makes the working face of the closure without greasy dirt, free from admixture；It will be prefabricated
Fritter build in working face.
According to the test stone of national standard GB23864-2009 " fire-proof sealing material ", to fire-proof sealing material of the invention into
Row detection, testing result are shown in Table 1.
The performance indicator (GB23864-2009) of the fire-proof sealing material of the invention of table 1
Comparative example 1 and comparative example 2 are selected from the preferable fire-proof sealing material of similar sale in the market in table 1.According to each of table 1
Item testing result is it is found that compared with similar fire-proof sealing material common in the market, and fire-proof sealing material of the invention is in corrosion resistant
Corrosion, water resistance, oil resistivity, freeze-thawing resistant circulation, expansion character, fire integrity and refractory heat-insulating performance etc. have obviously
Advantage.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without depart from that overall concept of the invention, several changes and improvements can also be made, these also should be considered as of the invention
Protection scope.
Claims (10)
1. a kind of fire-proof sealing material of cable duct, it is characterised in that: the raw material including following parts by weight: component A: 80-160 parts
Polyether polyol, 30 parts of polyester polyol, 10 parts of halogen-free flame-retardant polyester polyol, 30-50 parts of microcapsules anti-flaming smoke-inhibiting agents,
10-20 parts of expansion type flame retardants, 5-10 parts of modified Nano compound particles, 3-6 parts of film forming agents, 8-15 parts of pigments and fillers, 8-15 parts just
Pentane, 1-6 part catalyst, 4-8 parts of foam stabilisers, 1-4 parts of water；B component: 130-220 parts of polymethylene polyphenyl polyisocyanate cyanogen
Acid esters.
2. a kind of fire-proof sealing material of cable duct according to claim 1, it is characterised in that: the microcapsules are fire-retardant
Smoke suppressant is chitosan microcapsules anti-flaming smoke-inhibiting agent, the production method is as follows: (1) water and gelatin are sequentially added in agitator tank,
It stirs at 50 DEG C and is completely dissolved to gelatin, obtain gelatin solution, the concentration of gelatin is 1.5wt% in resulting gelatin solution；
(2) by chitosan, pentaerythrite, bisphenol-A bis- (diphenyl phosphoesters), melamine, neopelex, aluminium hydroxide
It is added to the water, with speed emulsification pretreatment 3 minutes of 2000 rpms, to obtain lotion；(3) resulting lotion is added dropwise
Its PH is adjusted to 5.0-5.8 into gelatin solution, and with sodium hydroxide solution, is stirred to react at 50 DEG C 30 minutes, stirring turns
Speed is 300 rpms, and suspension is made；(4) resulting suspension is cooled to 0-8 DEG C with ice-water bath, is slowly added dropwise penta 2
Aldehyde aqueous solution, and with sodium hydroxide solution regulation system PH to 5.0-5.8, maintenance system temperature 0-8 DEG C 30 minutes, then control
System temperature processed adjusts PH to 5.9-6.2 at 45 DEG C, with sodium hydroxide solution, and reaction obtained microcapsule emulsion after 2-4 hours；
(5) tannin of 0.06g/ml is added in obtained microcapsule emulsion, it is small that control system temperature is stirred to react 6 at 45 DEG C
When, and cooling, centrifugation, filter, drying obtains chitosan microcapsules anti-flaming smoke-inhibiting agent.
3. a kind of fire-proof sealing material of cable duct according to claim 2, it is characterised in that: the expansion type flame-retarding
Agent includes the raw material of following components: pentaerythritol phosphate, '-diphenylmethane diisocyanate, cyclodextrin, lignin, melamine
And expansible graphite.
4. a kind of fire-proof sealing material of cable duct according to claim 3, it is characterised in that: the modified Nano is multiple
Conjunction particle, which is negative, is loaded with the mesohole nano-titanium dioxide particle of fire retardant, and the film forming agent is polyvinyl acetate emulsion, two
Propandiol butyl ether, amino resins, allyl resin and tar resin mixture, the pigments and fillers be titanium dioxide, melamine
Amine, kaolinic mixture.
5. a kind of fire-proof sealing material of cable duct according to claim 1, it is characterised in that: the polyether polyol
For the mixture of one or more of YD-4110, YD8239G, YD1050, YD401P, YD6205, YD450BC, described is poly-
Ester polyol is that one or both of HF-3152, HF-4004 mixture, the halogen-free flame-retardant polyester polyol are
BY3009T, the foam stabiliser are the mixture of one or more of AK8830, AK8863, AK8825.
6. a kind of fire-proof sealing material of cable duct according to claim 5, it is characterised in that: the polyether polyol
Average hydroxyl value value be 380mgKOH/g.
7. a kind of fire-proof sealing material of cable duct according to claim 6, it is characterised in that: the catalyst is solid
Amine, N, N- dimethyl cyclohexyl amine, bis- (2- dimethylaminoethyl) ethers, triethylamine, triethanolamine and 2,6- diethyl -4- methyl
One or more of mixtures of aniline.
8. a kind of fire-proof sealing material of cable duct according to claim 4, it is characterised in that: the modified Nano is multiple
Close particle the preparation method comprises the following steps: meso-porous titanium dioxide titanium particle is added to the water, then fire retardant is added to the water, is then carried out
Ultrasonic treatment obtains the mesoporous TiO 2 that load has fire retardant after filtering drying.
9. a kind of preparation method of the fire-proof sealing material of -8 any cable ducts according to claim 1, it is characterised in that:
The preparation method of component A is the following steps are included: (1) prepares microcapsules anti-flaming smoke-inhibiting agent；(2) expansion type flame retardant, modification are received
Rice compound particle, film forming agent, pigments and fillers smash and grind respectively, dry；(3) it is separately added into microcapsules flame-retardant smoke inhibition by weight
Agent, expansion type flame retardant, modified Nano compound particle, film forming agent, pigments and fillers, polyether polyol, catalyst, be uniformly mixed and
It is stirred 0.5-1.5 hours at 30-40 DEG C, then is placed in cutter and shears 8-15 minutes, pentane is then added and stirs evenly
To component A.
10. a kind of construction method of the fire-proof sealing material of -8 any cable ducts according to claim 1, feature exist
In: the following steps are included: (1) carries out cleaning treatment to the working face that cable duct blocks, make the working face of the closure without greasy dirt, nothing
Impurity；(2) after working face is dry, working face is carried out according to the ratio that the weight ratio of component A and component B are 1:1.0-1.8
Construction processing, the construction processing mode according to working face size, fire-proof sealing material reaction speed come select mechanically spraying,
It pours or prefabricated；(3) working face cures drying at normal temperature.
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