CN110256647A - A kind of high flame-retardant foamed material blocked for transporting coal railway carriage - Google Patents
A kind of high flame-retardant foamed material blocked for transporting coal railway carriage Download PDFInfo
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- CN110256647A CN110256647A CN201910544882.0A CN201910544882A CN110256647A CN 110256647 A CN110256647 A CN 110256647A CN 201910544882 A CN201910544882 A CN 201910544882A CN 110256647 A CN110256647 A CN 110256647A
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- railway carriage
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- transporting coal
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
- C08J9/143—Halogen containing compounds
- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
- C08J9/143—Halogen containing compounds
- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
- C08J9/145—Halogen containing compounds containing carbon, halogen and hydrogen only only chlorine as halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to sealing material technical field, specially a kind of high flame-retardant foamed material blocked for transporting coal railway carriage；It is specifically made of tri- components of A, B, C, component A includes combination polyalcohol；B component includes the prepolymer of isocyanates and polyether polyol；C component is glacial acetic acid；Combination polyalcohol is made of polyalcohol, microporous calcium silicate and the magnesium trisilicate that mass percent is 10-15:1-2:1-2；The present invention is using three kinds of component cooperations, effectively enhance the anti-flammability and bond strength of foamed material, it is set to be fully adapted to the closure environment of transporting coal railway carriage, three part polyurethane foamed materials of the invention are that a kind of expansion multiple reaches, and good airproof performance, cohesive force are strong, the good plugging material of flame retardant property, its operability is strong, it is at low cost using simple and convenient, very great achievement degree it can improve the safety and economy of the caulking joint of transporting coal railway carriage.
Description
Technical field
The present invention relates to sealing material technical field, specially a kind of high flame-retardant foamed material blocked for transporting coal railway carriage
Material.
Background technique
Polyurethane foams is a kind of high-performance foam material, thermal insulation property be it is optimal in various foamed materials, together
When with the excellent strength of materials, be the field of thermal insulation such as current refrigerator, solar energy, heat distribution pipeline, building, automobile, cold chain most
It is preferred that selecting.With the attention of China's building energy conservation, polyurethane foam heat insulation material expands year by year in China's building trade dosage.It is poly-
Urethane foaming agent is commonly called as foaming agent, foamed glue, PU gap filler, is that aerosol technology and polyurethane foam technology intersect the production combined
Object.When material is sprayed from inhalator jar, the polyurethane material of foam-like can expand rapidly and with air or the matrix touched
In moisture be cured reaction and form foam.Polyurethane foam gap filler foam after solidification have joint filling, bonding, sealing,
The multi-effects such as heat-insulated, sound-absorbing are a kind of environmental protection and energy saving, construction material easy to use, are applicable to sealing and plugging, benefit of filling a vacancy
Seam, fixed bonding, heat preservation and soundproof, the sealing and plugging and waterproof being particularly suitable between plastic-steel or aluminum alloy doors and windows and wall use
Also more and more extensive.
For Coal Transport, standard gauge railway transportation is the important way transported outside factory.It is big with freight volume, haul distance is remote,
The features such as speed is fast, climate condition does not limit.But there are problems that coal dust disperses during transportation and pollute environment, mesh
Preceding coal conveyor coal bunker is generally old, and magazine leakiness of unloading coal, leakproofness is poor, and leading to vehicle during transportation has a large amount of coal
Block, coal face become scattered about in track for a train, have not only polluted environment but also waste of resource.
Coal mine generallys use Household ornament foamed glue at present or polyurethane foam heat insulation material carries out railway carriage sealing and plugging, family
With decoration foamed glue disadvantage it is obvious that being mainly manifested in, time-consuming, Fei Renli, the railway carriage of a section normal length, disposable's spray makes
It is taken around -10 minutes 5 minutes and is differed with foamed glue sealing, cause working efficiency low, long construction period influences coal shipment
Amount, at high cost, there is also the risk of explosion, summer occurred to wound the event of people pressurized tank.Polyurethane foam heat insulation material
Maximum problem is that anti-flammability is not high enough, particularly with the combustion-supporting coal dust of contact, there is very big security risk, and transporting
The amount of granular material present in coal car skin gap is very big, higher to the intensity requirement of plugging material, current existing foam material
Material is when encountering a large amount of granular materials, it is easy to fall off, transporting coal midway is caused to again result in the phenomenon that dispersing.
Summary of the invention
The present invention overcomes the shortcomings of the prior art, proposes a kind of high flame-retardant foamed material blocked for transporting coal railway carriage
Material.Purpose be improve foamed material flame retardant property and intensity, make it is suitable for transporting coal railway carriage block condition.
The present invention is achieved through the following technical solutions.
A kind of high flame-retardant foamed material blocked for transporting coal railway carriage, the foamed material are made of tri- components of A, B, C,
The component A includes the combination polyalcohol that weight is 80-100 parts；The B component includes the isocyanates that weight is 80-100 parts
With the prepolymer of polyether polyol；The C component is the glacial acetic acid that parts by weight are 10-25 parts；The combination polyalcohol is by matter
Measure polyalcohol, microporous calcium silicate and the magnesium trisilicate composition that percentage is 10-15:1-2:1-2.
Preferably, the component A further includes auxiliary material, and the auxiliary material is made of the raw material of following parts by weight: foaming agent 10-20
Part, 3-4 parts of catalyst, 2-7 parts and fire retardant 0-15 parts of surfactant.
More preferably, the catalyst is the mixture of tertiary amine catalyst and organic metal catalyst, and the tertiary amines are urged
Agent is one kind or any combination of triethylenediamine solution, dimethyl cyclohexyl amine, five methyl diethylentriamine, the gold
Metal catalyst is one of dibutyl tin dilaurate, stannous octoate, isooctyl acid potassium or any combination.
Preferably, the B component further includes auxiliary material, and the auxiliary material is made of the raw material of following parts by weight: foaming agent 10-20
Part, 1-6 parts of foam stabiliser, 0-20 parts of fire retardant.
More preferably, the foaming agent is one of HCFC-141b, pentamethylene, methylene chloride or any combination.
More preferably, the fire retardant is three (2- chloroethyl) phosphates, three (2- chloropropyl) phosphates, four (2- chloroethyls)
One of diethylidene ether bisphosphate, four (2- chloroethyl) ethylene phosphates or any two kinds of compositions.
Preferably, the polyalcohol is one of polyether polyol, polyester polyol, reactive hydrogen oligomer or any group
It closes.
Preferably, the preparation method of the isocyanates and the prepolymer of polyether polyol is more by isocyanates and polyethers
First alcohol mixing, is warming up to 80 DEG C, stirs and keep the temperature 1-2 hours.
Preferably, the isocyanates is toluene di-isocyanate(TDI), '-diphenylmethane diisocyanate, polymethylene polyphenyl
One of polyisocyanates or any combination.
The preparation method of the foamed material the following steps are included:
1) it makes component A: polyalcohol being added in reaction kettle first, start blender, temperature is maintained at 60-80 DEG C, is added micro-
Hole calcium silicates and magnesium trisilicate stir 15-30min, and catalyst, emulsifier, surfactant, fire retardant are added later, finally plus
Enter foaming agent, stirs 30min.
2) C component will be added in the component A made, is sufficiently mixed uniformly.
3) the mixed component A of part and C component are fitted into container, are sprayed simultaneously when carrying out plugging operations with B component collocation
It uses out.
The present invention is generated compared with the existing technology to be had the beneficial effect that.
The present invention effectively enhances the anti-flammability and bond strength of foamed material using three kinds of component cooperations, makes it sufficiently
Suitable for the closure environment of transporting coal railway carriage, microporous calcium silicate and magnesium trisilicate is sufficiently added on the basis of polyalcohol in component A,
Microporous calcium silicate not only provides higher heat resistance and compression strength, and calcium ion therein can be taken with the acetic acid in C component
The carboxyl of band forms covalent bond, and this structure will form firm structure after by material spraying, while magnesium trisilicate is rising
While acting on the polymerization time at gap to micro- hygroscopicity to accelerate foamed material, magnesium ion therein equally can be with carboxylic
Base forms chemical bond, reinforces integral strength.And the micro metal ion in coal dust is equally when touching this foamed material,
It so that its intensity is declined and is fallen off, can also be formed instead with the hydroxyl and carboxyl moieties contained in foamed material a kind of strong
Higher bonding scheme is spent, the associative key formed between multiple carboxyls and hydroxyl is interlaced, makes the leakproofness of foamed material more
By force, while in conjunction with the coal dust of exudation high-intensitive performance still can be kept to prevent from falling off later.Also, the silicon in component A
Hydrochlorate ingredient carries out reacting foaming with the isocyanates in B component, further generates on the basis of increasing fire retardant fire-retardant
Effect, ensure that safety of the foamed material under this use environment, avoid under hot weather or under abnormal conditions fire hair
It is raw.
Three part polyurethane foamed materials of the invention are that a kind of expansion multiple reaches, and good airproof performance, cohesive force are strong, anti-flammability
The good plugging material of energy, operability is strong, and use is simple and convenient, at low cost, very great achievement degree can improve transporting coal railway carriage
The safety and economy of caulking joint.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, in conjunction with reality
Example is applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain this
Invention, is not intended to limit the present invention.Below with reference to the embodiment technical solution that the present invention will be described in detail, but protection scope not by
This limitation.
Embodiment 1
A kind of high flame-retardant foamed agent blocked for transporting coal railway carriage, the foaming agent is made of tri- components of A, B, C, component A by
4063 polyether polyol of 65g, 7g microporous calcium silicate, 10g magnesium trisilicate, 10g pentamethylene, 3.5g five methyl diethylentriamine
With the mixture of isooctyl acid potassium, the polyoxyethylene ether of 2g nonyl phenol, 5g tetra- (2- chloroethyl) ethylene phosphate；B component is
The isocyanates of 85g and the prepolymer of polyether polyol；The preparation method of isocyanates and the prepolymer of polyether polyol will be different
Cyanate mixes mixing according to mass ratio 2:1 with polyether polyol, is warming up to 80 DEG C, stirs and keeps the temperature 1 hour and obtains；C component
It is the glacial acetic acid of 20g.
Foaming agent specific the preparation method comprises the following steps:
1) it makes component A: 4063 polyether polyol being added in reaction kettle first, start blender, temperature is maintained at 80 DEG C, adds
Enter microporous calcium silicate and magnesium trisilicate stirring 20min, the mixture of five methyl diethylentriamine and isooctyl acid potassium be added later,
The polyoxyethylene ether of nonyl phenol, four (2- chloroethyl) ethylene phosphates are eventually adding pentamethylene, stir 30min.
2) C component will be added in the component A made, is sufficiently mixed stirring 30min.
3) the mixed component A of part and C component are fitted into container, are sprayed simultaneously when carrying out plugging operations with B component collocation
It uses out.
Embodiment 2
A kind of high flame-retardant foamed agent blocked for transporting coal railway carriage, the foaming agent is made of tri- components of A, B, C, component A by
The polyester polyol of 80g, 12g microporous calcium silicate, 6g magnesium trisilicate, 15g methylene chloride, 4g dimethyl cyclohexyl amine and tin dilaurate
The mixture of dibutyl tin, the polyoxyethylene ether of 5g nonyl phenol, 10g tri- (2- chloropropyl) phosphate；B component is the isocyanide of 100g
The prepolymer of acid esters and polyether polyol；The preparation method of isocyanates and the prepolymer of polyether polyol is by isocyanates and gathers
Ethoxylated polyhydric alcohol is mixed according to mass ratio 1:1, is warming up to 80 DEG C, is stirred and is kept the temperature 2 hours and obtains；C component is the ice vinegar of 10g
Acid.
Foaming agent specific the preparation method comprises the following steps:
1) it makes component A: polyester polyol being added in reaction kettle first, start blender, temperature is maintained at 80 DEG C, is added micro-
Hole calcium silicates and magnesium trisilicate stir 30min, and the mixture of dimethyl cyclohexyl amine and dibutyl tin dilaurate, nonyl are added later
The polyoxyethylene ether of base phenol, three (2- chloropropyl) phosphates are eventually adding methylene chloride, stir 30min.
2) C component will be added in the component A made, is sufficiently mixed stirring 30min.
3) the mixed component A of part and C component are fitted into container, are sprayed simultaneously when carrying out plugging operations with B component collocation
It uses out.
Embodiment 3
A kind of high flame-retardant foamed agent blocked for transporting coal railway carriage, the foaming agent is made of tri- components of A, B, C, component A by
The polyester polyol of 60g, 8g microporous calcium silicate, 8g magnesium trisilicate, 20g HCFC-141b, 3g dimethyl cyclohexyl amine and two laurels
The mixture of sour dibutyl tin, the polyoxyethylene ether of 2g nonyl phenol, 10g tetra- (2- chloroethyl) diethylidene ether bisphosphate；B group
It is divided into the isocyanates of 90g and the prepolymer of polyether polyol；The preparation method of isocyanates and the prepolymer of polyether polyol
Isocyanates is mixed into mixing according to mass ratio 1:1.5 with polyether polyol, is warming up to 80 DEG C, stirring and keep the temperature 1.5 hours must
It arrives；C component is the glacial acetic acid of 25g.
Foaming agent specific the preparation method comprises the following steps:
1) it makes component A: polyester polyol being added in reaction kettle first, start blender, temperature is maintained at 80 DEG C, is added micro-
Hole calcium silicates and magnesium trisilicate stir 20min, and the mixture of dimethyl cyclohexyl amine and dibutyl tin dilaurate, nonyl are added later
The polyoxyethylene ether of base phenol, four (2- chloroethyl) diethylidene ether bisphosphates are eventually adding HCFC-141b, stir 30min.
2) C component will be added in the component A made, is sufficiently mixed stirring 30min.
3) the mixed component A of part and C component are fitted into container, are sprayed simultaneously when carrying out plugging operations with B component collocation
It uses out.
The above content is combine specific preferred embodiment to the further description done of the present invention, and it cannot be said that
A specific embodiment of the invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off
Under the premise of from the present invention, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by being submitted
Claims determine scope of patent protection.
Claims (10)
1. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage, which is characterized in that the foamed material is by A, B, C tri-
Component composition, the component A include the combination polyalcohol that weight is 80-100 parts；The B component includes that weight is 80-100 parts
Isocyanates and polyether polyol prepolymer；The C component is the glacial acetic acid that parts by weight are 10-25 parts；The combination
Polyalcohol is made of polyalcohol, microporous calcium silicate and the magnesium trisilicate that mass percent is 10-15:1-2:1-2.
2. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage according to claim 1, which is characterized in that described
Component A further includes auxiliary material, and the auxiliary material is made of the raw material of following parts by weight: 10-20 parts of foaming agent, 3-4 parts of catalyst, and surface
2-7 parts and fire retardant 0-15 parts of activating agent.
3. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage according to claim 2, which is characterized in that described
Catalyst be tertiary amine catalyst and organic metal catalyst mixture, the tertiary amine catalyst be triethylenediamine it is molten
One kind or any combination of liquid, dimethyl cyclohexyl amine, five methyl diethylentriamine, the metallic catalyst are tin dilaurate two
One of butyl tin, stannous octoate, isooctyl acid potassium or any combination.
4. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage according to claim 1, which is characterized in that described
B component further includes auxiliary material, and the auxiliary material is made of the raw material of following parts by weight: 10-20 parts of foaming agent, 1-6 parts of foam stabiliser,
0-20 parts of fire retardant.
5. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage according to claim 2 or 4, which is characterized in that
The foaming agent is one of HCFC-141b, pentamethylene, methylene chloride or any combination.
6. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage according to claim 2 or 4, which is characterized in that
The fire retardant is three (2- chloroethyl) phosphates, three (2- chloropropyl) phosphates, four (2- chloroethyl) diethylidene ether, two phosphorus
One of acid esters, four (2- chloroethyl) ethylene phosphates or any two kinds of compositions.
7. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage according to claim 1, which is characterized in that described
Polyalcohol is one of polyether polyol, polyester polyol, reactive hydrogen oligomer or any combination.
8. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage according to claim 1, which is characterized in that described
Isocyanates isocyanates is mixed with polyether polyol with the preparation method of the prepolymer of polyether polyol, be warming up to 80
DEG C, it stirs and keeps the temperature 1-2 hours.
9. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage according to claim 1, which is characterized in that described
Isocyanates is one of toluene di-isocyanate(TDI), '-diphenylmethane diisocyanate, poly methylene poly phenyl poly isocyanate
Or any combination.
10. a kind of high flame-retardant foamed material blocked for transporting coal railway carriage according to claim 1, which is characterized in that institute
State the preparation method of foamed material the following steps are included:
1) it makes component A: polyalcohol being added in reaction kettle first, start blender, temperature is maintained at 60-80 DEG C, is added micro-
Hole calcium silicates and magnesium trisilicate stir 15-30min, and catalyst, emulsifier, surfactant, fire retardant are added later, finally plus
Enter foaming agent, stirs 30min；
2) C component will be added in the component A made, is sufficiently mixed uniformly；
3) the mixed component A of part and C component are fitted into container, and spraying simultaneously when carrying out plugging operations with B component collocation makes
With.
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|---|---|---|---|---|
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