CN106800633B - High fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 and preparation method thereof - Google Patents
High fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 and preparation method thereof Download PDFInfo
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- CN106800633B CN106800633B CN201710027812.9A CN201710027812A CN106800633B CN 106800633 B CN106800633 B CN 106800633B CN 201710027812 A CN201710027812 A CN 201710027812A CN 106800633 B CN106800633 B CN 106800633B
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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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- C08J9/04—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
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- C08K5/00—Use of organic ingredients
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- C08K5/51—Phosphorus bound to oxygen
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- C08K5/00—Use of organic ingredients
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- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
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- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
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- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
- C08J2203/184—Binary blends of expanding agents of chemical foaming agent and physical blowing agent, e.g. azodicarbonamide and fluorocarbon
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- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
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Abstract
The invention discloses high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 and preparation method thereof, it is characterized in that, including reactive flame retardant, liquid additive flame retardant, solid additive flame retardant, the reactive flame retardant is reaction-type flame-retarding polyethers or/and flame retardant polyester polyalcohol containing ignition-proof element, and the solid additive flame retardant contains expansible graphite；It is easy to get by selecting three kinds of suitable fire retardants and optimizing the ratio of three using routine, the third cheap butane, diformazan ether mixture environment-friendly foaming agent obtains having preferable physical property and service performance, the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32.The product oxygen index (OI) is high, and smoke density is low, flame propagation is small, good flame retardation effect, and the fields such as the building suitable for there is high fire-retardance to require and the vehicles use.
Description
Technical field
The present invention relates to sealing agent of single component polyurethane foam fields, and in particular to the high fire-retardance one pack system of oxygen index (OI) >=32
Cranny filler of polyurethane foam and preparation method thereof.
Background technique
In recent years, the requirement with building and the vehicles to the flame retardant property of its material therefor is higher and higher and political affairs
Plan regulation it is increasingly stringent, the flame retardant property of material therefor is faced with huge challenge.
Sealing agent of single component polyurethane foam is the special polyurethane foam products being loaded in aerosol pressure cans, extensively
It is general to be applied to building and joint filling, sealing, heat-insulated, bonding, the sound insulation of the vehicles etc., it is that one kind has excellent performance, is easy to use,
The new material of environmental protection and energy saving.However common non-flame resistant (B3 grades so-called) sealing agent of single component polyurethane foam oxygen index (OI) (oxygen
Index is to measure material to light the indexs of difficulty or ease, is worth bigger, and anti-flammability is better) only 18 or so, belong to combustible material；General resistance
Combustion type (B2 grades so-called) cranny filler of polyurethane foam oxygen index (OI) is also only capable of reaching 26, also belongs to combustible material；Even if having in the market
A small amount of so-called " fire retardant " (B1 grades so-called, DIN4102B1 standard) product, oxygen index (OI) both at home and abroad are not achieved 32 (it is generally acknowledged that oxygen
Index > 32 is nonflammable material), it is not able to satisfy the harsh flame-retardancy requirements of certain niche markets.Therefore, the certain special dimensions in market
There is urgent demand to the product with high fire-retardance effect.
Flame retardant type sealing agent of single component polyurethane foam is to realize resistance by the way that suitable flame retardants are added into formula system
Fire purpose, patent CN103923294 by be added reaction-type flame-retarding polyethers containing elements such as chlorine, bromine, phosphorus, nitrogen or (and) it is fire-retardant
The foaming agent (F12) of polyester polyol, liquid additive flame retardant and non-combustible type is filled out to prepare fire-retardant one-component polyurethane foam
Agent is stitched, optimization formula oxygen index (OI) is also only capable of reaching 29.5 (actual measurement is 27.4), and also uses the foaming agent of non-environmental protection
F12.And patent WO2010058036 does not use reaction-type flame-retarding polyethers or flame retardant polyester polyalcohol, only adds general liquid and adds
Adding type fire retardant TCPP and solid additive flame retardant expansible graphite, flame retardant property are also only capable of reaching B2 grades of (DIN4102B2 marks
It is quasi-), do not mention oxygen index (OI) index in this text (actual measurement is 25.2).Fire-retardant mono-component polyurethane bubble made from above-mentioned two patent
Foam gap filler flame retardant effect is poor.Oxygen index (OI) can reach 30 fire-retardant sealing agent of single component polyurethane foam almost currently on the market
No, therefore let alone the high fire-retardance product of this fire retardant rank in oxygen index (OI) >=32.Existing fire-retardant mono-component polyurethane bubble
Foam gap filler some also uses non-environmental protection foaming agent (such as F12) or i.e. by expensive foaming agent (such as 134a) on the verge of being replaced,
It environmental requirement more stringent today, using routine, is easy to get, the high fire-retardance list of oxygen index (OI) >=32 is made in cheap environment-friendly foaming agent
Part polyurethane foam gap filler more there is an urgent need to.
Summary of the invention
The technical problem to be solved by the present invention is to the oxygen of existing common flame retardant type sealing agent of single component polyurethane foam
Index is lower, is unfavorable for using the high fire-retardance list, and it is an object of the present invention to provide high oxygen index (OI) in the more demanding field of flame retardant property
Part polyurethane foam gap filler and preparation method thereof makes the oxygen index (OI) of high fire-retardance sealing agent of single component polyurethane foam obtained
>=32, making it not only has high fire-retardance effect, and products obtained therefrom also has preferable physical property and service performance.
The present invention is achieved through the following technical solutions:
The high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32, including reactive flame retardant, liquid addition type
Fire retardant, solid additive flame retardant, the reactive flame retardant include the reaction-type flame-retarding polyethers containing ignition-proof element or/and
Flame retardant polyester polyalcohol, the solid additive flame retardant contain expansible graphite.
Specifically, in reaction-type flame-retarding polyethers or/and flame retardant polyester polyalcohol, the ignition-proof elements such as phosphorous, chlorine, bromine.Phosphorus member
Element mainly plays a role in condensed phase, and phosphide can consume the fuel gas decomposited when burning and convert it into not in burning
Incendive carbide belongs to catalysis carbon-forming fire retardant mechanism；Halogen (chlorine, bromine) then mainly plays a role in the gas phase, is burning
Shi Shengcheng hydrogen halides and inhibit combustion reaction, be the chain terminating agent of combustion reaction.
Liquid additive flame retardant is generally phosphorous, chlorine, bromine small molecule compound, such as (halogenated) phosphorus (phosphine) esters of gallic acid.
This kind of liquid flame retardant fire retardant mechanism is identical as above-mentioned phosphorous, chlorine, the reactive flame retardant fire retardant mechanism of bromine.
Expansible graphite is fire-retardant and delaying or interrupting by solid matter generation inflammable substance.Expansible graphite
Heated to start to expand to a certain extent, the graphite after expansion becomes the very low vermiform of density by original flakey, from
And form good heat insulation layer.Graphite flake after expansion is both charcoal source and the heat insulation layer of intumescent system, can be effectively heat-insulated,
Delay and terminate the decomposition of polymer；Meanwhile largely absorbing heat in expansion process, system temperature can be effectively reduced；And it is expanded
Acid ion in journey in release jacket coating, can promote dehydration carbonization, can further increase anti-flammability.
Further, usual oxygen index (OI) >=32 are nonflammable material, and existing single-component cranny filler of polyurethane foam is several
Without oxygen index (OI) >=32.According to the fire retardant mechanism of above-mentioned fire retardant, can not all be obtained using any one or two kinds of fire retardants
To oxygen index (OI) >=32, and at the same time the high fire-retardance one-component polyurethane foam joint filling with preferable physical property and service performance
Agent, degree of functionality is 2-3 by the present invention, the reaction-type flame-retarding polyethers that hydroxyl value is 50-400 or/and flame retardant polyester polyalcohol, suitable
Liquid flame retardant, the expansible graphite three collective effect that expansion multiplying power is 20-400 times are in one-component polyurethane foam system
In, and by optimizing triangular proper ratio to obtain a kind of oxygen index (OI) >=32, and at the same time having preferable physical property
And the high fire-retardance sealing agent of single component polyurethane foam of service performance, there is it in the demanding environment of flame retardant property
The application of effect.
Further, the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32, reactive flame retardant, liquid add
Adding type fire retardant, solid additive flame retardant weight fraction ratio be 1:0.70~0.95:0.8~1.3.
Wherein, the ignition-proof elements such as the phosphorus in reactive flame retardant, chlorine, bromine can be reacted with polyisocyanates and are integrated to poly-
In urethane molecular structure, make polyurethane molecular itself that there is flame-retardant composition.Reactive flame retardant is small on foaming properties influence, fire-retardant
Persistently and effect is good, therefore will not be precipitated in the long-term use and reduce flame retardant property.This kind of reactive flame retardant synthesis
It is more complex, compare additive flame retardant higher cost.If being excessively used, other than cost increases, the brittleness of foam can also become
Greatly, adhesiveness increases, shortened shelf life, and then will affect the use of high fire-retardance single-component cranny filler of polyurethane foam.
The production of liquid additive flame retardant is mature, price is lower, viscosity is small, and with other materials compatibilities in formula
It is good；There is preferable craftsmanship in production and in, but if dosage is excessive, then can seriously affect the physical property of foam, such as
Strength reduction, dimensional stability are deteriorated, caking property reduces, and as time went on, migration increases, and can make foam instead
Anti-flammability is deteriorated.
Expansible graphite have it is nontoxic, it is heated not generate toxic gas, and cigarette it is few, without dripping off with non-migratory phenomenon,
Source is sufficient, manufacturing process is simple, at low cost, is a kind of novel environment friendly high-efficiency fire retardant.But expansible graphite is as a kind of solid
Body fire retardant, additive amount has restriction in system, because body can be significantly greatly increased in the increase with expansible graphite additive amount
It is viscosity, system liquidity is made to be deteriorated, influences the normal use of product.
Therefore, combined reaction type flame retarding polyether or/and flame retardant polyester polyalcohol, liquid additive flame retardant, inflatable stone
The performance of black three, when according to experiment, to obtain its weight fraction ratio be in 1:0.70~0.95:0.8~1.3, obtained one pack system
Oxygen index (OI) >=32 of cranny filler of polyurethane foam, and at the same time having preferable physical property and service performance, high flame retardant
Keep high fire-retardance sealing agent of single component polyurethane foam produced by the present invention more safe and reliable when in use.
Preferably, the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32, reactive flame retardant, liquid addition
Type fire retardant, solid additive flame retardant weight fraction ratio be 1:0.8~0.9:0.95~1.2, the reactive flame retardant,
Liquid additive flame retardant, solid additive flame retardant weight fraction ratio be 1:0.85:1.1.
Preferably, the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 may be used also when preparing this gap filler
Use conventional polyether or/and polyester polyol.Conventional polyether or/and polyester polyol have the certain objects of adjustment in inventive formulation
The effect of the auxiliary such as property and processing performance, can not use in some special cases.
Specifically, the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32, the gap filler include polyethers or/
And polyester polyol, foam stabiliser, catalyst, polyisocyanates, foaming agent, the polyethers or/and polyester polyol are normal
Advise polyethers or/and polyester polyol；Foam stabiliser is the organic silicon surfactant for conventional polyurethanes foam gap filler,
The catalyst is N,N-Dibenzylamine, and the polyisocyanates is polymethylene multi-phenenyl isocyanate, the foaming agent
For the mixture of the third butane and dimethyl ether.
It can also according to circumstances add or be not added pigment.
Wherein, foaming agent is the mixture containing the third butane and dimethyl ether, and parts by weight of the third butane and dimethyl ether
Than for 1:0.4~1, the third butane and dimethyl ether, for readily available and inexpensive green-blowing agent, (ODP=0, GWP=0 use GWP
(global warming potential) come measure they to global warming effect sizes, substance for the size of depletion of the ozone layer ability be with
ODP (atmospheric ozone layer loss latent energy value) Lai Hengliang's)；Also, foaming agent of the invention is opposite inflammable blowing agent, but last
It is not available for existing fire-retardant sealing agent of single component polyurethane foam that oxygen index (OI) >=32, which can be reached,.
Preferably, the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32, the solid additive flame retardant
It further include ammonium polyphosphate or aluminium hydroxide or antimony oxide or zinc borate or one of melamine salt or red phosphorus or more
Kind.Flame-retarding characteristic (such as combustion product intensity, smoke density, smoke toxicity etc.) and other certain performances sometimes for improvement foam,
Expansible graphite can also be with other solid additive flame retardant (such as melamine salt, ammonium polyphosphate, zinc borate, aluminium hydroxides
Deng) be used in combination.
A kind of preparation method of the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32, comprising the following steps:
A. by reactive flame retardant, polyethers or/and polyester polyol, liquid additive flame retardant, foam stabiliser, catalysis
Agent is mixed and stirred for uniformly, combined polyether being made in proportion；Wherein the weight of reactive flame retardant is the 30- of combined polyether
50%, the weight of polyethers or/and polyester polyol is the 0-20% of combined polyether, and the weight of liquid additive flame retardant is combination
The 25-45% of polyethers, the weight of foam stabiliser are the 2-5% of combined polyether, and the weight of catalyst is the 0.8- of combined polyether
1.5%.
B. combined polyether, solid additive flame retardant, polyisocyanates are proportionally added into inhalator jar；Solid addition type
The weight of fire retardant is the 20-50% of combined polyether, and the weight of polyisocyanates is the 100%-150% of combined polyether.
C. the valve for sealing up inhalator jar pours foaming agent, obtains finished product at normal temperature after mixing.
The preparation method of the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32, foaming agent in the step C
Weight be combined polyether 20%~80%.
The preparation method of the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32, foaming agent in the step C
Weight be combined polyether 54%.
Sealing agent of single component polyurethane foam contains isocyanate prepolymer, foam stabiliser, fire retardant, catalyst, hair
Infusion etc., after content is sprayed from special valve when use, due to foaming agent vaporization and sharply expand, formed a large amount of low
Density foam, along with largely residual-NCO reacts generation carbon dioxide with the water in air or matrix and solidifies in performed polymer.
Compared with bi-component hard polyurethane foams, the density of sealing agent of single component polyurethane foam it is smaller (it is general≤
30kg/m3)；Rate of closed hole is lower (≤80%), and because one pack system specific packaged forms require to cause fire retardant range of choice is small (to have
A little fire retardants will influence shelf life of products and mobility), also based on high fire-retardance sealing agent of single component polyurethane foam of the invention
It has used inflammable blowing agent (the third butane of dimethyl ether) as foaming agent, therefore to have accomplished and flame retardant bicomponent hard polyurethane foams
Identical fire-retardant rank relative difficulty will accomplish that high fire-retardance rank (fire retardant) is extremely difficult if oxygen index (OI) >=32.The present invention adopts
The high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 is made with above-mentioned technical proposal.
Compared with prior art, the present invention having the following advantages and benefits:
1, the high fire-retardance sealing agent of single component polyurethane foam and preparation method thereof of oxygen index (OI) >=32 of the present invention, application method
It is essentially identical with conventional sealing agent of single component polyurethane foam, and the high fire-retardance effect with oxygen index (OI) >=32, while its cigarette
Density is low, flame propagation is small, and the fields such as the building suitable for there is high fire-retardance to require and the vehicles use；
2, the high fire-retardance sealing agent of single component polyurethane foam and preparation method thereof of oxygen index (OI) >=32 of the present invention, it is used
Foaming agent is the mixture of the third butane and dimethyl ether.The ODP and GWP of this foaming agent are zero, be it is a kind of very environmentally friendly, cheaply again
Readily available foaming agent；
3, the high fire-retardance sealing agent of single component polyurethane foam and preparation method thereof of oxygen index (OI) >=32 of the present invention, by list
Reactive flame retardant, liquid additive flame retardant, solid additive flame retardant are added in part polyurethane foam system, three presses
" synergistic effect " is presented in aforementioned proportion, makes oxygen index (OI) >=32 of high fire-retardance sealing agent of single component polyurethane foam obtained, and shows
The oxygen index (OI) for the fire-retardant sealing agent of single component polyurethane foam having almost without 30 or more, therefore this gap filler more meet as
Modern more stringent fire-retardant regulation, can effectively apply in the place required with high fire-retardance.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment, the present invention is made
Further to be described in detail, exemplary embodiment of the invention and its explanation for explaining only the invention, are not intended as to this
The restriction of invention.
Embodiment 1
High fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 of the present invention and preparation method thereof is matched by table 11
Side, by 40g reactivity flame retardant polyester polyalcohol RB79,20g polyethers 310,36g liquid flame retardant TCPP, 3g foam stabiliser
B8871,1g catalyst DMDEE are uniformly mixed, and 100g combined polyether is made.Again by 100g combined polyether, 40g expansible graphite,
125g polyisocyanates M20S is added in inhalator jar, seals up valve, successively pours 24g dimethyl ether, the third butane of 30g, shaking mixing 5
Minute, places 24 hours under room temperature, then gluing, solidification measures product oxygen index (OI) after 24 hours be 32.2.
Contain reaction-type flame-retarding polyethers or/and flame retardant polyester polyalcohol, liquid additive flame retardant, solid in the present embodiment
Additive flame retardant, wherein solid additive flame retardant is expansible graphite, is also added with conventional polyether or/and polyester polyols
Alcohol, i.e. 20g polyethers, and the ratio of the third butane and dimethyl ether is 1:0.8 in foaming agent, therefore in value range of the invention,
Reaction-type flame-retarding polyethers or/and flame retardant polyester polyalcohol, liquid additive flame retardant, solid additive flame retardant is added, finally
Oxygen index (OI) >=32 of obtained mono-component polyurethane gap filler have good flame retardant effect.
Embodiment 2
By 9 formula in table 1, by 60g reactivity flame retardant polyester RB79,36g liquid flame retardant DMMP, 3g foam stabiliser
B8871,1g catalyst DMDEE are uniformly mixed, and 100g combined polyether is made.Again by 100g combined polyether, 125g polyisocyanates
M20S is added in inhalator jar, seals up valve, successively pours 24g dimethyl ether, the third butane of 30g, shaking mixing 5 minutes, room temperature decentralization
Set 24 hours, then gluing, solidification measures product oxygen index (OI) after 24 hours be 28.2.In this formula without containing expansible graphite or
Its mixture, only reactive flame retardant, liquid additive flame retardant.
It can be seen that from formula 9, only add reaction-type flame-retarding polyethers or/and flame retardant polyester polyalcohol, liquid additive flame retardant
Two kinds of fire retardants of agent, final oxygen index (OI) 32 hereinafter, its effect than three kinds of fire retardants of addition in embodiment 1 effect
Difference.
Embodiment 3
By 10 formulas in table 1, do not have flame-proof polyol, only contains liquid additive flame retardant and containing inflatable stone
The solid additive flame retardant of or mixtures thereof ink, final oxygen index (OI) is below 32.
Embodiment 4
By 11 formulas in table 1, does not have liquid additive flame retardant and (to meet processing performance requirement, be added to non-resistance
The liquid plasticizer DOP of combustion is compared), only contain the pure and mild expansible graphite solid addition type of RB79 reaction-type flame-retarding polyester polyols
Two kinds of fire retardants of fire retardant, oxygen index (OI) 32 hereinafter, and physical property and service performance it is poor.
Embodiment 5
By 6 formula in table 1, for the reaction of the reaction-type flame-retarding polyethers containing ignition-proof element or/and flame retardant polyester polyalcohol
Type fire retardant, liquid additive flame retardant, solid additive flame retardant containing expansible graphite or graphite mixture ratio be
1:1.5:1.65, although flame retardant effect is slightly good, oxygen index (OI) is also not achieved 32, and physical property and service performance are poor.
Embodiment 6
By 7 formula in table 1, for the reaction of the reaction-type flame-retarding polyethers containing ignition-proof element or/and flame retardant polyester polyalcohol
Type fire retardant, liquid additive flame retardant, solid additive flame retardant containing expansible graphite or graphite mixture ratio be
1:0.5:1, identical as formula 7, although flame retardant effect is slightly good, 32, and physical property and usability is also not achieved in oxygen index (OI)
It can be poor.
Embodiment 7
By 8 formula in table 1, for the reaction of the reaction-type flame-retarding polyethers containing ignition-proof element or/and flame retardant polyester polyalcohol
Type fire retardant, liquid additive flame retardant, solid additive flame retardant containing expansible graphite or graphite mixture ratio be
1:0.9:0.4, flame retardant effect is poor, and oxygen index (OI) is also not achieved 32, and physical property and service performance are also poor.
Embodiment 8
According to reaction-type flame-retarding polyethers in patent CN103923294 or/and flame retardant polyester polyalcohol and liquid additive flame
Fire liquid additive flame retardant and the solid additive flame containing expansible graphite in the ratio and patent WO2010058036 of agent
The ratio for firing agent obtains reaction-type flame-retarding polyethers or/and flame retardant polyester polyalcohol, liquid additive flame retardant, containing inflatable
The ratio of the solid additive flame retardant of graphite is 1:0.95:0.4, prepares one-component polyurethane foam joint filling according to aforementioned proportion
Agent (uses the third butane diformazan ether mixture foaming agent), oxygen index (OI) 29.6,32 hereinafter, flame retardant effect is poor.
According to the parts by weight of reactive flame retardant, liquid additive flame retardant, solid additive flame retardant in the present invention
The value range of ratio, such as the formula 1-5 in table 1, oxygen index (OI) >=32.
Therefore, when reaction-type flame-retarding polyethers or/and flame retardant polyester polyalcohol, liquid additive flame retardant, containing inflatable
When the weight fraction ratio of the solid additive flame retardant of graphite is in the range of 1:0.70~0.95:0.8~1.3, have higher
Anti-flammability, and according to the ratio of three in existing patent, oxygen index (OI) can not reach 32, and therefore, the present invention passes through three kinds
Fire retardant mutually acts synergistically in aforementioned proportion range, can reach oxygen index (OI) >=32, and have preferable physical property and
Service performance.
In conclusion can obtain from table 1, the component ratio in 1-5 is formulated in ingredient and proportional region of the invention
It is interior, containing ingredient of the invention and reaction-type flame-retarding polyethers or/and flame retardant polyester polyalcohol, liquid additive flame retardant,
Three kinds of fire retardants of solid additive flame retardant containing expansible graphite, oxygen index (OI) >=32, therefore have preferable fire-retardant
Property；And only for the reaction-type flame-retarding polyethers containing ignition-proof element or/and flame retardant polyester polyalcohol, liquid additive flame retardant
Agent, containing the solid additive flame retardant three of expansible graphite or graphite mixture synergistic effect when, can just make one pack system poly-
Oxygen index (OI) >=32 of urethane foam gap filler；And only reactive flame retardant, liquid additive flame retardant, solid additive flame
The weight fraction ratio for firing agent is in the range of 1:0.70~0.95:0.8~1.3, and three, which could act synergistically, reaches oxygen index (OI) >=32
Effect；And high fire-retardance sealing agent of single component polyurethane foam obtained by ratio value of the present invention has preferable
Physical property and service performance, practicability are higher.
Therefore work as reaction-type flame-retarding polyethers or/and flame retardant polyester polyalcohol, liquid additive flame retardant, containing inflatable stone
Three kinds of fire retardant weight fraction ratios of solid additive flame retardant of ink are the ratio in the range of 1:0.70~0.95:0.8~1.3
Not only anti-flammability reaches existing sealing agent of single component polyurethane foam institute to sealing agent of single component polyurethane foam prepared by example
Inaccessiable effect, i.e. oxygen index (OI) >=32.Physical property and service performance of the invention is also preferable, can effectively meet to fire-retardant
Property has the demand of the special dimension of high request.
1 formula of the embodiment of the present invention of table and oxygen index value
| Raw material | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| RB79 | 40 | 20 | 40 | 60 | 60 | ||||||
| M125 | 50 | 40 | 20 | 30 | 50 | 50 | |||||
| JQN-310 | 20 | 10 | 10 | 20 | 21 | 60 | |||||
| JQN-210 | 21 | 1 | |||||||||
| PS-2352 | 10 | 20 | |||||||||
| TEP | 18.5 | 18.6 | 45 | 25 | 45 | ||||||
| TCPP | 36 | 18.5 | 18 | 36 | |||||||
| DMMP | 18.6 | 18 | 37 | 36 | |||||||
| DOP | 36 | ||||||||||
| B8871 | 3 | 2 | 2 | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 3 |
| DMDEE | 1 | 1 | 0.8 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| EG | 40 | 40 | 50 | 40 | 40 | 50 | 50 | 20 | 40 | 50 | |
| Zinc borate | 8 | ||||||||||
| M20S | 125 | 135 | 125 | 130 | 120 | 108 | 140 | 112 | 125 | 125 | 125 |
| Dimethyl ether | 24 | 22 | 26 | 24 | 24 | 24 | 26 | 24 | 24 | 24 | 24 |
| Third butane | 30 | 28 | 32 | 30 | 30 | 30 | 32 | 30 | 30 | 30 | 30 |
| Oxygen index (OI) | 32.2 | 32.2 | 32.4 | 32.4 | 32.8 | 31.2 | 31.6 | 27.8 | 28.2 | 28.6 | 30.8 |
Wherein, RB79 is the reaction-type flame-retarding polyester polyol of Ya Bao Chemical Co., Ltd. production；M125 is Su Wei chemistry
Co., Ltd's reaction-type flame-retarding polyether polyol produced；JQN-310, JQN-210 are that Nanjing gold is dwelt the polyethers of Chemical Manufacture,
The polyester of the Nanjing PS-2352 Nanjing Si Taipan Chemical Co., Ltd. production；TEP is triethyl phosphate, TCPP is three (2- chlorine third
Base) phosphate, DMMP be dimethyl methyl phosphonate, DOP be dioctyl phthalate liquid plasticizer, TEP, TCPP and DMMP
It is all commercially available common common liq fire retardant；DOP is common plasticizers.B8871 is the organosilyl surface of Ying Chuan company production
Activating agent, i.e. foam stabiliser；DMDEE is Beijing oiling N,N-Dibenzylamine catalyst produced；EG is inflatable stone
Ink, zinc borate are other solid flame retardants；M20S is the polyisocyanates of BASF AG's production, i.e. polymethylene polyphenyl is different
Cyanate (PAPI, polymeric MDI)；Third butane, dimethyl ether are propellant (foaming agent) used in common aerosol.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (9)
1. the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32, which is characterized in that including reactive flame retardant, liquid
Body additive flame retardant, solid additive flame retardant, the reactive flame retardant are that the reaction-type flame-retarding containing ignition-proof element is more
First alcohol, the solid additive flame retardant contain expansible graphite；Gap filler further includes foaming agent, and foaming agent is the third butane and two
The mixture of methyl ether；Wherein, the weight fraction ratio of reactive flame retardant, liquid additive flame retardant, solid additive flame retardant
For 1:0.70~0.95:0.8~1.3.
2. the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 according to claim 1, which is characterized in that
Reactive flame retardant, liquid additive flame retardant, solid additive flame retardant weight fraction ratio be 1:0.8~0.9:0.95~
1.2。
3. the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 according to claim 1, which is characterized in that
The reactive flame retardant, liquid additive flame retardant, solid additive flame retardant weight fraction ratio be 1:0.85:1.1.
4. the high fire-retardance sealing agent of single component polyurethane foam of any oxygen index (OI) >=32 according to claim 1~3, special
Sign is, the gap filler further include polyethers or (and) polyester, foam stabiliser, catalyst, polymethylene polyphenyl isocyanic acid
Ester.
5. the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 according to claim 1, which is characterized in that
The weight fraction ratio of third butane and dimethyl ether is 1:0.4~1.
6. the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 according to claim 1, which is characterized in that
The solid additive flame retardant further includes ammonium polyphosphate or aluminium hydroxide or antimony oxide or zinc borate or melamine
One of salt or red phosphorus are a variety of.
7. a kind of high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 as claimed in any one of claims 1 to 6
Preparation method, which comprises the following steps:
A. by reactive flame retardant, polyethers or (and) polyester, liquid additive flame retardant, foam stabiliser, catalyst by proportion
It is mixed and stirred for uniformly, combined polyether being made；
B. combined polyether, solid additive flame retardant, polymethylene multi-phenenyl isocyanate are proportionally added into inhalator jar；
C. aerosol tank valve is sealed up, foaming agent is poured, obtains finished product at normal temperature after mixing.
8. the preparation method of the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 according to claim 7,
It is characterized in that, the weight of foaming agent is the 20%~80% of combined polyether in the step C.
9. the preparation method of the high fire-retardance sealing agent of single component polyurethane foam of oxygen index (OI) >=32 according to claim 8,
It is characterized in that, the weight of foaming agent is the 54% of combined polyether in the step C.
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| CN106977684B (en) * | 2017-04-19 | 2019-11-08 | 成都高端聚合物科技有限公司 | High-flame-retardanthalogen-free halogen-free low-smoke low-toxicity sealing agent of single component polyurethane foam of oxygen index (OI) >=32 and preparation method thereof |
| CN110204676A (en) * | 2019-05-31 | 2019-09-06 | 李学友 | It is a kind of for packing the foamed material and preparation method thereof of filling |
| CN110564364A (en) * | 2019-08-22 | 2019-12-13 | 石家庄东翔化工有限公司 | B1Grade flame-retardant single-component polyurethane foam gap filler and preparation method thereof |
| CN111303376B (en) * | 2020-02-17 | 2022-02-18 | 成都高端聚合物科技有限公司 | Pressure canned surface-spraying single-component polyurethane foam, and preparation method and application thereof |
| CN114133510A (en) * | 2021-12-15 | 2022-03-04 | 上海东大聚氨酯有限公司 | Combined polyether and polyurethane material for B1-grade flame-retardant continuous board and preparation method thereof |
| CN115612150B (en) * | 2022-11-02 | 2023-07-25 | 湖北祥源新材科技股份有限公司 | Flame-retardant microporous polyurethane foam, and preparation method and application thereof |
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