CN104130368B - A kind of flame retardant polyurethane cast rigid foam sheet material - Google Patents

A kind of flame retardant polyurethane cast rigid foam sheet material Download PDF

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Publication number
CN104130368B
CN104130368B CN201410347900.3A CN201410347900A CN104130368B CN 104130368 B CN104130368 B CN 104130368B CN 201410347900 A CN201410347900 A CN 201410347900A CN 104130368 B CN104130368 B CN 104130368B
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flame retardant
sheet material
component
polyol component
rigid foam
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CN104130368A (en
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王磊
窦忠山
王炳凯
王耀西
余郁
潘振勇
李坤
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Wanhua Energysav Science and Technology Group Co Ltd
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Wanhua Energysav Science and Technology Group Co Ltd
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    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
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    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/16Catalysts
    • C08G18/161Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22
    • C08G18/163Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22
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    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4205Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
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    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4244Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
    • C08G18/4247Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
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    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06Working-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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    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12Working-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
    • C08J9/14Working-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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    • C08K5/00Use of organic ingredients
    • C08K5/49Phosphorus-containing compounds
    • C08K5/51Phosphorus bound to oxygen
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    • C08J2203/02CO2-releasing, e.g. NaHCO3 and citric acid
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    • C08J2203/00Foams characterized by the expanding agent
    • C08J2203/14Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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    • C08J2203/00Foams characterized by the expanding agent
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    • C08K3/20Oxides; Hydroxides
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    • C08K2003/2227Oxides; Hydroxides of metals of aluminium

Abstract

The present invention relates to a kind of flame retardant polyurethane cast rigid foam sheet material, belong to polyurethane rigid foam plastic sheet material field.This sheet material is polymerized with polyol component by isocyanate component, and isocyanate component and polyol component mass ratio are (140 200): 100.Polyol component includes PEPA, reactive flame retardant, inorganic particles and auxiliary agent, and four account for the 10 40% of polyol component gross weight, 5 40%, 10 30%, 22 52% respectively.It can use the equipment such as polyurethane casting machine or electronic, pneumatic stirring that isocyanate component and polyol component are uniformly mixed after moulding by casting, this sheet material has the fire resistance of excellence, can meet nonflammable material B level requirement in GB GB8624 2012 " construction material and product burns grading performance " tabular construction material and the burning behavior class of goods and grading criteria.

Description

A kind of flame retardant polyurethane cast rigid foam sheet material
Technical field
The present invention relates to a kind of flame retardant polyurethane cast rigid foam sheet material.
Background technology
Polyurethane rigid foam plastic (hard bubbling) is by rigid-foam polyether polyol (hard polyurethane foam combined polyether Also known as white material), react preparation with polymeric MDI (also known as black material).Mainly for the preparation of rigid polyurethane foam Foam plastics, are widely used in the fields such as refrigerator, freezer, spraying, solar energy, heating pipeline, building.
Polyurethane rigid foam plastic have excellence physics and heat preservation and insulation:
1, heat conductivity is less than the building heat preservation heat-barrier materials such as rock wool, glass cotton, styrofoam, extruded sheet, joint Electrical efficiency is high;
2, lightweight, reduce load;
3, have excellent water resistance, insulation, waterproof unite two into one;
4, design is simple, efficiency is high, progress is fast, quality good, the life-span is long;
5, polyurethane is inert material, does not reacts with bronsted lowry acids and bases bronsted lowry, and is not insects and rodent Food source, material character and heat-insulating property can be kept constant.
The moulding process of hard polyurethane foam is generally divided into spraying and cast two kinds;Spraying is to use polyurethane coating Polyurethane bicomponent raw material directly with tiny misty liquid droplets form ejection, is coated with on a surface of an by machine, Material fast foaming expands and solidifies, and forms the hard polyurethane foam heat-insulation layer consistent with base shape.The most prominent Feature be for variously-shaped base material, whether plane, facade or end face can directly be implemented to water Note foaming, is not required to mould.
Cast be use the equipment such as polyurethane casting machine or electronic, pneumatic stirring isocyanate component and Polyol component is poured in mould after uniformly mixing, and takes out after heat-insulation pressure keeping a period of time in a mold Obtain the goods that hard bubble.Contrast and be coated with following major advantage:
1, can be easily controlled with factory's continuous prodution, product quality;
2, produce not by the climatic effect such as temperature, wind-force, the most all can carry out;
3, comparing spraying, material splashes and is lost less, pollutes construction environment few;
4, the thicker skinning of needs, complex-shaped various sheet materials or lines can be produced;
5, isocyanate component and polyol component mixed proportion can be more flexible with adjusting range.
But hard polyurethane foam belongs to Organic substance after all, the fire resistance of itself relative to rock wool, glass cotton, Also there is a big difference for the inorganic material such as expanded perlite, along with the repeatedly generation of organic insulation material fire incident, People are more and more stricter to its fire-retardant index request.
To tabular construction material in GB GB8624-2012 " construction material and product burns grading performance " And nonflammable material B level requires in the burning behavior class of goods and grading criteria:
The fire-retardant also few people of B level reach at present, wherein GB/T20284 monomer combustion test requirements document: The fire growth rate index requirement less than 120W/s can reach almost without people.
Summary of the invention
It is an object of the invention to: solve cast polyurethane and hard bubble the sheet material weak point at fire-retardant aspect, carry GB GB8624-2012 " construction material and product burns grading performance " tabular Building wood is met for one The flame retardant polyurethane cast that in material and the burning behavior class of goods and grading criteria, nonflammable material B level requires is hard Matter foam plastics slab.
The technical solution of the present invention is:
A kind of flame retardant polyurethane cast rigid foam sheet material, is gathered with polyol component by isocyanate component Conjunction forms, and it is characterized in that
Described isocyanate component and polyol component mass ratio are (140-200): 100;Described polyhydric alcohol group Divide and include PEPA, hydroxyl reactive flame retardant, inorganic particles and auxiliary agent;Described response type hinders Combustion agent accounts for the 10-40% of polyol component gross weight;Described PEPA accounts for polyol component gross weight 5-40%;Described inorganic particles accounts for the 10-30% of polyol component gross weight;It is total that described auxiliary agent accounts for polyol component The 22-52% of weight.
The another kind of formula of a kind of flame retardant polyurethane cast rigid foam sheet material: isocyanate component is with many Unit's alkoxide component mass ratio is (140-200): 100;Polyol component includes PEPA, hydroxyl anti- Answering type fire retardant, auxiliary agent, these raw materials account for the percentage ratio of polyol component gross mass and are: PEPA 6-57%, hydroxyl reactive flame retardant 12-57%, auxiliary agent 22-52%;Isocyanate component includes the most sub- Methyl polyphenyl polyisocyanate and inorganic particles, the percentage ratio accounting for isocyanate component gross weight is, many Polymethylene polyphenyl polyisocyanates 70-90%, inorganic particles 10-30%.
Above-mentioned PEPA is by least one in phthalic anhydride, phthalic acid and ethylene glycol, propylene glycol, fourth Glycol, pentanediol, hexanediol, diglycol, dipropylene glycol, glycerol, hexanetriol, three The PEPA that at least one polycondensation in hydroxymethyl-propane, hexakis(hydroxymethyl)melamine obtains.Such as south The PEPA that the trade mark is PS-3152 that Nanjing, capital Si Taipan Chemical Co., Ltd. produces, Jiangsu richness contains green wood The PEPA that the trade mark is CF-6255 that material company limited produces.The present invention selects the poly-of high phenyl ring content Ester polyol, does not use the diethylene glycol of routine or glycerol to add epoxy second with sucrose or ethylenediamine with sucrose Alkane and/or the polyether polyol of Polymerization of Propylene Oxide, its principle is inflammable-CH2-segment during minimizing is hard bubbled Content, increase phenyl ring content, phenyl ring easily forms carbonization protective layer, protected foam inside in burning The effect attacked from flame.And we it was found that, in hard bubbling inflammable-CH2-segment content the fewest, Phenyl ring content is the highest, is more conducive to the formation of carbonization protective layer, and flame retardant effect is the best.
Above-mentioned auxiliary agent include physical blowing agent, foam surface activity agent, catalyst, liquid organic fire-retardant and Water;In auxiliary agent, the quality consumption of each component accounts for the percentage ratio of polyol component gross mass and is:
Above-mentioned reactive flame retardant is the compound containing hydroxyl, and containing halogen element, P elements, nitrogen unit At least one element in element.Reactive flame retardant contains the hydroxyl that can react with isocyanates, and does not contains The liquid organic fire-retardant of hydroxyl is compared, and not only acts as fire retardation, and does not has plasticization.Containing 2 The reactive flame retardant of above hydroxyl can also increase the degree of cross linking of hard bubbling, and replaces conventional diethylene glycol or glycerol Or ethylenediamine and sucrose add the polyether polyol of oxirane and/or Polymerization of Propylene Oxide, not only obtain Higher foamy body, it is also possible to reduce the content of inflammable-CH2-segment in hard bubbling.
Above-mentioned reactive flame retardant is Manny alkene polyhydric alcohol or nitrogenous/phosphorus/halogen polyether polyol or tetrabromo Phthalic anhydride glycol.Manny alkene polyhydric alcohol be phenols, formaldehyde, diethanolamine polymerization obtain polyhydric alcohol;Described Phenols be phenol, hydroquinone, propyl phenoxy, butylphenol, amylic phenol, heptyl phenol, octyl phenol, nonyl At least one in phenol and decyl phenol, such as R2470M (ten thousand Huarong prestige polyurethane company limited);Nitrogenous/phosphorus/halogen Element polyether polyol is to add oxirane and/or expoxy propane and/or ring with nitrogenous/phosphorus/halogen hydroxy compounds The molecule that oxygen chloropropane is polymerized contains the polyether polyol of nitrogen/phosphorus/halogen, such as Fr-130 (ten thousand Huarong's prestige Polyurethane company limited);Tetrabromo-benzene anhydride diol be tetrabromophthalate or PHT4 with ethylene glycol, third At least one in glycol, butanediol, pentanediol, hexanediol, diglycol, dipropylene glycol The PEPA that polycondensation obtains, such as Saytex RB-79 (Albemarle Corporation of U.S. Albemarle Corporation in USA)。
Above-mentioned inorganic particles refers to fireproof inorganic thing, such as aluminium hydroxide, magnesium hydroxide, calcium carbonate, three oxidations At least one in two antimony, Firebrake ZB microgranule, preferably aluminium hydroxide.Use the mixing such as electronic, pneumatic stirring To the not requirement of inorganic particles particle diameter when equipment, use the mixing apparatus such as low pressure, high pressure polyurethane casting machine Time inorganic particles less than 500 mesh and adjust raw material aperture of filter screen accordingly, preferential employing cylinder dosing pump or tooth The high pressure casting machine mixing of wheel pump or plunger metering pump.Inorganic particles not only itself has fire retardation, and And and containing halogen, phosphorus, the reactive flame retardant of nitrogen element and liquid organic fire-retardant, there is good fire-retardant association Same effect, it is possible to the carbonization protective layer easily formed in foam combustion protects foam inside to attack from flame together Hit.
Aforesaid liquid organic fire-retardant is not hydroxyl, for phosphate ester and/or halophosphoric acid esters organic compound Thing, preferably methyl-phosphoric acid dimethyl ester, three (2-chloropropyl) phosphate ester, three (2-chloroethyl) phosphate ester With at least one in ethyl phosphonic acid diethylester.
Above-mentioned foam surface activity agent is silicone oil, and silicone oil is polydimethylsiloxane, and silicone oil can use and step figure The silicone oil that the trade mark is L6950 or Jiangsu Maysta Chemical Co., Ltd. that new high-tech material group produces are raw The silicone oil that the trade mark is AK8803 produced;
Above-mentioned catalyst is tertiary amine catalyst and organic metal salt catalyst;Described tertiary amine catalyst Including pentamethyl-diethylenetriamine, N, N-dimethyl cyclohexyl amine, triethylene diamine, triethylamine, 1,4-bis- At least one in methyl piperazine, N, N-dimethyl benzylamine and double dimethylamino ethyl ether, described organic gold Belong to saline catalyst and include isooctyl acid potassium, formic acid quaternary ammonium salt, potassium acetate, dibutyl tin laurate, octanoic acid At least one in stannous, dibutyltin diacetate and potassium oleate;
Above-mentioned physical blowing agent be 1,1-bis-chloro-1-fluoroethane, 1,1,1,3,3-pentafluoropropane, At least one in HFC-365 and 1,1,1,2-tetrafluoro butane;
Above-mentioned isocyanate component is poly methylene poly phenyl poly isocyanate.This polymethylene polyphenyl polyisocyanate The polymethylene polyphenyl that the trade mark is PM-200 that the preferred Wanhua Chemical Group Co., Ltd. of cyanate produces Polyisocyanates.
Above-mentioned inorganic particles can also only add in isocyanate component, and addition is less than polyol component The 30% of gross mass;Described inorganic particles can also be added simultaneously in isocyanate component, adds Carbimide. to Time in ester component, addition is less than the 30% of polyol component gross mass.
Above-mentioned double-component raw material can also add the mill base occupying polyol component gross mass 0.1-2%, permissible Arbitrarily add in isocyanate component or polyol component.Described mill base can use Bao Meishi chemical industry (on Sea) company limited produce the mill base that the trade mark is 126-3M1665,036-2M1941, or use Guangzhou The trade mark that Merck Chemical Co., Ltd. produces is at least one in P89855, P89750, P89856 mill base.
The present invention, in order to increase the anti-flammability of cast polyurethane rigid foam, starts with in terms of three: a side Face reduce hard bubble in the content of inflammable-CH2-segment, do not use the diethylene glycol of routine or glycerol or second two Amine and sucrose add the polyether polyol of oxirane and/or Polymerization of Propylene Oxide;On the other hand use and contain The reactive flame retardant of phosphorus bromine ignition-proof element and the PEPA of high phenyl ring content;Finally use incombustible without Machine microgranule, adds in isocyanate component or polyol component, increases fire resistance.By this tripartite Face, we have obtained meeting GB GB8624-2012 " construction material and product burns grading performance " In to nonflammable material B level requirement in tabular construction material and the burning behavior class of goods and grading criteria.
A kind of flame retardant polyurethane cast rigid foam sheet material of the present invention, the shape of its end article depends on The shape of mould is used, it is possible to use different moulds produces various different decorative pattern, moulding, chi in producing Very little flame retardant polyurethane cast rigid foamed article.If such as using spherical module, ball can be obtained The flame retardant polyurethane cast rigid foamed article of type.
The production method preparing above-mentioned flame retardant polyurethane cast rigid foam sheet material of the present invention is: use Polyurethane casting machine or electric stirring equipment or pneumatic stirring equipment are isocyanate component and polyhydric alcohol group It is poured in mould after dividing uniformly mixing, takes out after heat-insulation pressure keeping a period of time in a mold and obtain the goods that hard bubble.
The invention has the beneficial effects as follows:
(1) the flame retardant polyurethane cast rigid foam sheet material of the present invention has the fire resistance of excellence: can With meet GB GB8624-2012 " construction material and product burns grading performance " tabular construction material and Nonflammable material B level requirement in the burning behavior class of goods and grading criteria.
(2) the flame retardant polyurethane cast rigid foam sheet material of the present invention is applicable to high the building of flame-retardancy requirements The applications such as walling body, roofing, ground insulating.
Detailed description of the invention
Further illustrate embodiment of the present invention below in conjunction with embodiment, but the invention is not restricted to listed Embodiment, also should be included in interest field of the presently claimed invention other and any known change.
Embodiment 1
Isocyanate component and polyol component mass ratio are 140:100.
Polyol component:
Isocyanate component selects poly methylene poly phenyl poly isocyanate PM-200 (ten thousand China's chemical groups shares Company limited) 90wt%, aluminum hydroxide particle (320 mesh) 10wt%;
Production stage:
(1) 4*1.2*0.6 sized blocks bubble mould is coated releasing agent;
(2) by polyol component premixing, more than mechanical agitation 5min;
(3) step (2) gains are steeped machine (Hebei Xianghe giant dragon foam with isocyanate component by case Machinery Co., Ltd.) it is sufficiently mixed, in cast 140kg to mould;
(4) matched moulds, waits 12 hours, and block takes out after steeping abundant ripening;
(5) use pingqie machine that block bubble is cut into 2-20cm thickness sheet material.
Made sheet material color is uniform grey, and various performances are as follows:
Reach GB GB8624-2012 " construction material and product burns grading performance " tabular construction material And nonflammable material B level requirement in the burning behavior class of goods and grading criteria.
Embodiment 2
Isocyanate component and polyol component mass ratio are 160:100;
Polyol component:
Isocyanate component: (ten thousand China's chemical groups shares have poly methylene poly phenyl poly isocyanate PM-200 Limit company) 82wt%, magnesium hydroxide microgranule (200 mesh) 18wt%;
Production stage:
(1) 1.2*0.6*0.03m size board mould is used circulating water heating to 45 DEG C, and coat de- Mould agent;
(2) by polyol component premixing, more than mechanical agitation 0.5min;
(3) step (2) gains are filled by electronic, the manual stirring of pneumatic stirring with isocyanate component Divide mixing, in cast 1270g to mould;
(4) close immediately board mould, take out after waiting the abundant ripening of 20min sheet material.
Reach GB GB8624-2012 " construction material and product burns grading performance " tabular construction material And nonflammable material B level requirement in the burning behavior class of goods and grading criteria.
Embodiment 3
Isocyanate component and polyol component mass ratio are 160:100;
Polyol component:
Isocyanate component: (ten thousand China's chemical groups shares have poly methylene poly phenyl poly isocyanate PM-200 Limit company);
Production stage:
(1) polyurethane plate tinuous production press is heated to 55 DEG C;
(2) then upper and lower surface coiled material is preheated and guided to inside press;
(3) by polyol component premixing, more than mechanical agitation 10min;
(4) press is started;
(5) step (3) gains are passed through low-pressure casting machine (the poly-ammonia of Zhenjiang Austria power with isocyanate component Ester Machinery Co., Ltd.) mixing, uniformly it is poured on last volume face;
(6) adjust press walking speed, be maintained at 4-6m/min, produce continuously.
Made sheet material color is the most faint yellow, and various physical properties are as follows:
Embodiment 4
Isocyanate component and polyol component mass ratio are 140:100.
Polyol component:
Isocyanate component selects poly methylene poly phenyl poly isocyanate PM-200 (ten thousand China's chemical groups shares Company limited) 80wt%, aluminum hydroxide particle (320 mesh) 20wt%;
Production stage:
(1) 4*1.2*0.6 sized blocks bubble mould is coated releasing agent;
(2) by polyol component premixing, more than mechanical agitation 5min;
(3) step (2) gains are steeped machine (Hebei Xianghe giant dragon foam with isocyanate component by case Machinery Co., Ltd.) it is sufficiently mixed, in cast 140kg to mould;
(4) matched moulds, waits 12 hours, and block takes out after steeping abundant ripening;
(5) use pingqie machine that block bubble is cut into 2-20cm thickness sheet material.
Made sheet material color is uniform grey, and various performances are as follows:
Reach GB GB8624-2012 " construction material and product burns grading performance " tabular construction material And nonflammable material B level requirement in the burning behavior class of goods and grading criteria.
Embodiment 5
Isocyanate component and polyol component mass ratio are 160:100;
Polyol component:
Isocyanate component: (ten thousand China's chemical groups shares have poly methylene poly phenyl poly isocyanate PM-200 Limit company) 70wt%, magnesium hydroxide microgranule (200 mesh) 30wt%;
Production stage:
(1) 1.2*0.6*0.03m size board mould is used circulating water heating to 45 DEG C, and coat de- Mould agent;
(2) by polyol component premixing, more than mechanical agitation 0.5min;
(3) step (2) gains are filled by electronic, the manual stirring of pneumatic stirring with isocyanate component Divide mixing, in cast 1270g to mould;
(4) close immediately board mould, take out after waiting the abundant ripening of 20min sheet material.
Made sheet material color is uniform grey, and various performances are as follows:
Reach GB GB8624-2012 " construction material and product burns grading performance " tabular construction material And nonflammable material B level requirement in the burning behavior class of goods and grading criteria.
The product of above example has higher comprcssive strength and excellent fire resistance, and flame retardant level reaches B level flame-retardancy requirements in GB/T8624-2012.This sheet material may be conveniently used skin, roof, The hard polyurethane foams field of the field of thermal insulation such as ground.

Claims (7)

1. a flame retardant polyurethane cast rigid foam sheet material, by isocyanate component with many Unit's alkoxide component is polymerized, it is characterised in that:
Described isocyanate component and polyol component mass ratio are (140-200): 100;
Described polyol component includes PEPA, hydroxyl reactive flame retardant, inorganic Microgranule and auxiliary agent, these raw materials account for the percentage ratio of polyol component gross mass and are: PEPA 5-40%, hydroxyl reactive flame retardant 10-40%, inorganic particles 10-30%, auxiliary agent 22-52%;
Described inorganic particles is also added simultaneously in isocyanate component, and addition is isocyanates The 10-30% of component gross mass.
Flame retardant polyurethane the most according to claim 1 cast rigid foam sheet material, its It is characterised by:
Described PEPA be by least one in phthalic anhydride, phthalic acid and ethylene glycol, third Glycol, butanediol, pentanediol, hexanediol, diglycol, dipropylene glycol, third At least one polycondensation in triol, hexanetriol, trimethylolpropane, hexakis(hydroxymethyl)melamine The PEPA obtained.
Flame retardant polyurethane the most according to claim 1 and 2 cast rigid foam plate Material, it is characterised in that:
Described auxiliary agent includes that physical blowing agent, foam surface activity agent, catalyst, liquid are organic Fire retardant and water, in auxiliary agent, the quality consumption of each component accounts for the percentage ratio of polyol component gross mass For:
Flame retardant polyurethane the most according to claim 3 cast rigid foam sheet material, its It is characterised by: described hydroxyl reactive flame retardant contains halogen element, P elements, nitrogen element In at least one element;Described reactive flame retardant be Manny alkene polyhydric alcohol or nitrogenous/phosphorus/ Any one of halogen polyether polyol or tetrabromo-benzene anhydride diol;
Manny alkene polyhydric alcohol is that phenols, formaldehyde, diethanolamine and Polymerization of Propylene Oxide are many Unit's alcohol;Described phenols is phenol, hydroquinone, propyl phenoxy, butylphenol, amylic phenol, heptan At least one in base phenol, octyl phenol, nonyl phenol and decyl phenol;
Nitrogenous/phosphorus/halogen polyether polyol is to add epoxy with nitrogenous/phosphorus/halogen hydroxy compounds In the molecule that ethane and/or expoxy propane and/or epoxychloropropane are polymerized containing nitrogen/phosphorus/ The polyether polyol of halogen;
Tetrabromo-benzene anhydride diol be tetrabromophthalate or PHT4 with ethylene glycol, propylene glycol, In butanediol, pentanediol, hexanediol, diglycol, dipropylene glycol at least one Plant the PEPA that polycondensation obtains.
Flame retardant polyurethane the most according to claim 4 cast rigid foam sheet material, its It is characterised by: described inorganic particles includes aluminium hydroxide, magnesium hydroxide, calcium carbonate, three oxidations At least one in two antimony, Firebrake ZB microgranule.
Flame retardant polyurethane the most according to claim 5 cast rigid foam sheet material, its It is characterised by: described liquid organic fire-retardant not hydroxyl, for phosphate ester and/or halo Phosphoric acid ester organic compound;
Described foam surface activity agent is silicone oil, and silicone oil is polydimethylsiloxane;
Described catalyst is tertiary amine catalyst and organic metal salt catalyst;Described tertiary amine Class catalyst includes pentamethyl-diethylenetriamine, N, N-dimethyl cyclohexyl amine, triethylene diamine, In triethylamine, 1,4-lupetazin, N, N-dimethyl benzylamine and double dimethylamino ethyl ethers At least one, described organic metal salt catalyst include isooctyl acid potassium, formic acid quaternary ammonium salt, In potassium acetate, dibutyl tin laurate, stannous octoate, dibutyltin diacetate and potassium oleate At least one;
Described physical blowing agent is 1,1-bis-chloro-1-fluoroethane, 1,1,1,3,3-five fluorine third At least one in alkane, HFC-365 and 1,1,1,2-tetrafluoro butane;
Described isocyanate component is poly methylene poly phenyl poly isocyanate.
Flame retardant polyurethane the most according to claim 6 cast rigid foam sheet material, its It is characterised by: described polyol component or isocyanate component also include account for polyol component The mill base of gross mass 0.1-2%.
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