CN104592470A - Flame-retardant polyisocyanurate rigid foam and preparation method thereof - Google Patents

Flame-retardant polyisocyanurate rigid foam and preparation method thereof Download PDF

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Publication number
CN104592470A
CN104592470A CN201410836010.9A CN201410836010A CN104592470A CN 104592470 A CN104592470 A CN 104592470A CN 201410836010 A CN201410836010 A CN 201410836010A CN 104592470 A CN104592470 A CN 104592470A
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retardant
fire
rigid foams
foams according
polysiocyanurate rigid
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Inventor
肖丽群
朱彦
周静
唐海华
黄德龙
唐劲松
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Shanghai Huafeng Material Science And Technology Research Institute (limited Partnership)
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Shanghai Huafeng Material Science And Technology Research Institute (limited Partnership)
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/4009Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • 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
    • C08G18/425Polycondensates 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 the polyols containing one or two ether groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/66Polyesters containing oxygen in the form of ether groups
    • C08G63/668Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/672Dicarboxylic acids and dihydroxy compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C08J9/08Working-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 developing carbon dioxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C08J9/143Halogen containing compounds
    • C08J9/144Halogen containing compounds containing carbon, halogen and hydrogen only
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/49Phosphorus-containing compounds
    • C08K5/51Phosphorus bound to oxygen
    • C08K5/52Phosphorus bound to oxygen only
    • C08K5/521Esters of phosphoric acids, e.g. of H3PO4
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0025Foam properties rigid
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00Foams characterized by the expanding agent
    • C08J2203/02CO2-releasing, e.g. NaHCO3 and citric acid
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00Foams characterized by the expanding agent
    • C08J2203/14Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142Halogenated saturated hydrocarbons, e.g. H3C-CF3
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00Foams characterized by the expanding agent
    • C08J2203/18Binary blends of expanding agents
    • C08J2203/184Binary blends of expanding agents of chemical foaming agent and physical blowing agent, e.g. azodicarbonamide and fluorocarbon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04Polyurethanes
    • C08J2375/06Polyurethanes from polyesters

Abstract

The invention discloses flame-retardant polyisocyanurate rigid foam and a preparation method thereof. The flame-retardant polyisocyanurate rigid foam comprises two components, i.e., a material A and a material B, wherein the material A comprises mixed-acid modified phthalic anhydride polyester polyol, flame-retardant polyester polyol, polyether polyol, a liquid flame-retardant agent, a composite catalyst, a foam stabilizing agent, a physical foaming agent and water; the material B comprises polyisocyanate. By adoption of the prepared modified polyol, the cost is reduced, the viscosity of the phthalic anhydride polyester polyol is also reduced and operation and production are facilitated; the prepared rigid foam has excellent mechanical property and good tensile property and size stability, and has the advantages that not only is the flame retardant property good, but also the tensile strength conforms to the requirements of the standards of the insulating materials of buildings.

Description

A kind of fire-retardant polysiocyanurate rigid foams and preparation method thereof
Technical field
The present invention relates to polyurethane foam field, be specifically related to a kind of fire-retardant polysiocyanurate rigid foams.
Background technology
High flame retardant polysiocyanurate rigid foams, there is good flame resistance, thermal conductivity be little, density is light, mechanical property is high, water tolerance and ageing resistance good, it is the flame-retardant thermal insulation material of widespread use in the world, be characterized in isocyanate index (R) high (general more than 300), flame retardant agent content is many.High flame retardant polysiocyanurate rigid foams polyvalent alcohol is mainly generally aromatic polyester polyol, as Tetra hydro Phthalic anhydride, terephthalic acid etc. and dibasic alcohol are produced through polycondensation, production cost is high, and due to isocyanate index high, fire retardant is many, while meeting flame retardant properties, the obtained compressive strength of hard bubbling and tensile strength weak.
Industrial production hexanodioic acid can produce and obtain a large amount of by product-mixing acid, and its main component is succinic acid, pentanedioic acid and hexanodioic acid etc., and because its physical property is similar, be difficult to be separated, cost is also high.
At present, the main application of mixing dibasic alcohol is the useful chemicals such as direct esterification synthesis softening agent, and how fully effectively to utilize these mixtures, be the problem of worth insider discussion always.
Summary of the invention
The object of this invention is to provide a kind of fire-retardant polysiocyanurate rigid foams and preparation method thereof, to overcome the defect that prior art exists.
Described fire-retardant polysiocyanurate rigid foams, its raw material comprises A material and B expects two components;
Described A material comprises nitration mixture modification benzoic anhydride polyester polyol, flame retardant polyester polyvalent alcohol, polyether glycol, liquid flame retardant, composite catalyst, suds-stabilizing agent, pneumatogen and water;
Described B material comprises polyisocyanates, and wherein, in polyisocyanates, NCO content is 30 ~ 32%;
Nitration mixture modification benzoic anhydride polyester polyol is obtained by polycondensation by the mixture of Tetra hydro Phthalic anhydride, C4 ~ C6 di-carboxylic acid and dibasic alcohol;
In A material, preferably, the number-average molecular weight of described nitration mixture modification benzoic anhydride polyester polyol is 350 ~ 630, is more preferably 530, and acid number is 1.5 ~ 2.5mgKOH/g;
Preferably, the mol ratio of the mixture of Tetra hydro Phthalic anhydride and C4 ~ C6 di-carboxylic acid is 4:1 ~ 1.5;
Preferably, the mixture of Tetra hydro Phthalic anhydride and C4 ~ C6 di-carboxylic acid and the mol ratio of dibasic alcohol are 1:(1.5 ~ 1.6), in actual production process, alcohol has loss, and the excess rate of general alcohol is 8 ~ 15%, and preferably excessive 10%;
The mixture of described C4 ~ C6 diprotic acid is the mixture of succinic acid, pentanedioic acid and hexanodioic acid; In the present invention, the source of the mixture containing C4 ~ C6 di-carboxylic acid is had no particular limits, can be mixed to get for C4 ~ C6 diprotic acid sterling, also can derive from the by product producing hexanodioic acid;
The proportioning of the present invention to C4 ~ C6 di-carboxylic acid mixture has no particular limits;
Preferred: succinic acid: pentanedioic acid: hexanodioic acid=1: 1.7 ~ 2.2: 2.5 ~ 3.8;
Described dibasic alcohol is C2 ~ C4 dibasic alcohol or its condenses, is preferably Diethylene Glycol;
The present invention has no particular limits the method preparing nitration mixture modification benzoic anhydride polyester polyol, the method of the bibliographical information that those skilled in the art can consult " Synthesis and application of aromatic polyester polyol ", and select concrete preparation technology and parameter according to prior art.
In the present invention, described flame retardant polyester polyvalent alcohol is that the hydrogen atom on carbon atom is optionally substituted by halogen, and has the polyester polyol of more than 2 functional groups, and hydroxyl value is at 200 ~ 270mgKOH/g.Preferably, described flame retardant polyester polyvalent alcohol is HF-8730 or HF-8730A of Hua Feng novel material limited-liability company, or is the RAYNOL of Qingdao Rui Nuo Chemical Co., Ltd. tMpF-1205 or PF-2605;
Described polyether glycol is one or more in polyether Glycols, polyether-tribasic alcohol, polyethers tetravalent alcohol etc.Preferably, described polyether glycol is polyoxypropylene polyol, polyoxyethylated polyols, polytetrahydrofuran polyol etc.Preferably, the molecular weight of described polyether glycol is 4000 ~ 6000;
Described liquid flame retardant be selected from three (chloro isopropyl) phosphoric acid ester (TCPP), three (2-propyloic) phosphine (TCEP), methyl-phosphoric acid dimethyl ester (DMMP), ethyl phosphonic acid diethyl ester (DEEP), triethyl phosphate (TEP) one or more;
Preferably, described liquid flame retardant is the mixture of three (chloro isopropyl) phosphoric acid ester (TCPP) and triethyl phosphate (TEP), and weight ratio is:
Three (chloro isopropyl) phosphoric acid ester: triethyl phosphate (TEP)=20: 7=2.5 ~ 3: 1;
Described composite catalyst be tertiary amine catalyst, metallic salt catalyzer one or more, preferably, tertiary amine catalyst can be pentamethyl-diethylenetriamine, dimethyl cyclohexyl amine, such as air chemical industry 5 or 8; Preferably, metallic salt catalyzer is potassium metal catalyst, and such as potassium acetate or isocaprylic acid potassium, as air chemical industry 46 or k-15.
Preferably, described composite catalyst is 5 Hes the mixture of 46, weight ratio is: 5: 46=1: 2.3 ~ 5.8;
Described suds-stabilizing agent can select organic silicon surfactant, L-6900, L-6920 etc. of preferred Mai Tu company;
In the present invention, water is preferably deionized water.
In the present invention, pneumatogen is preferably from the chloro-1-fluoroethane (HCFC-141b) of 1,1-bis-;
In B material:
Described polyisocyanates is isocyanic ester (NCO) content is the polymeric MDI of 30 ~ 32%, preferred Bayer AG 44V20L (being called for short 44V20L).
Preferably, the parts by weight of A material and B material are as follows:
A expects:
B expects:
Polyisocyanates 150 ~ 180 parts
Preferably, the parts by weight of A material and B material are as follows:
A expects: 99 ~ 108 parts, wherein, 99 ~ 108 parts refer to the total parts by weight of all materials;
B expects: 150 ~ 175 parts;
Those skilled in the art should know, the model relating to specific product in the present invention is not the restriction to invention, if having other Products and this type product performance similar or identical, also go for the present invention, also in protection scope of the present invention.
Prepare the method for rigid foam of the present invention, comprise the following steps:
(1) preparation of component A: by nitration mixture modification benzoic anhydride polyester polyol, flame-proof polyol, polyether glycol, liquid flame retardant, composite catalyst, suds-stabilizing agent, water, pneumatogen by being metered in reactor, temperature controls to stir 1 ~ 2h at 40-60 DEG C, discharging, at sealing, 10-30 DEG C, ventilates and preserves.
(2) preparation of hard polyurethane foam: component A, B component are injected mould after being uniformly mixed at temperature 20-35 DEG C, the demoulding, slaking 6 ~ 8 hours at 65 ~ 75 DEG C, sufficient reacting, obtains goods;
The modified polyalcohol of the preparation that the present invention adopts reduces cost, reduces the viscosity of benzoic anhydride polyester polyol simultaneously, is conducive to operation and produces.Rigid foam prepared by the present invention, this rigid foam has excellent mechanical property, and good tensile property and dimensional stability, not only good flame resistance, tensile strength also meets the requirement of building thermal insulation material standard.
Embodiment
The present invention will describe in detail by the following examples, should notice that embodiments of the invention just to make an explanation explanation to content of the present invention, not form the restriction to technical solution of the present invention.
In following examples,
Polyether glycol, from the GEP-330N of Shanghai Gaoqiao petro-chemical corporation, number-average molecular weight 4800.
Flame retardant polyester polyvalent alcohol, purchased from the HF-8730 of Zhejiang Province Huafeng New materials Co., Ltd, hydroxyl value is 250mgKOH/g.
All the other raw materials, as being not particularly illustrated, are commercially available
In following embodiment, " part " all by mass.
Exterior wall hard-foam polyurethane board test index and method, in table 1
Table 1
Nitration mixture modification benzoic anhydride polyester polyol prepares embodiment
Tetra hydro Phthalic anhydride, nitration mixture, glycol ether are added pet reaction still; under the protection of nitrogen; heated and stirred; progressively be warming up to 220 ~ 225 DEG C, then be incubated 2h, reach 70 ~ 90% of theoretical water outlet; carry out underpressure distillation; vacuum tightness slowly rises to 70 ~ 90KPa, until hydroxyl value acid number reaches requirement, and cooling discharge.Table 2 is Tetra hydro Phthalic anhydride, the charging capacity of nitration mixture, glycol ether and the polyvalent alcohol performance index that obtain.
Table 2
Embodiment 1
Formula:
Component A:
B component:
44V20L 152 parts
Preparation method:
Component A, B component are injected mould, the demoulding after being uniformly mixed at temperature 35 DEG C, and slaking 8 hours at 70 DEG C, sufficient reacting, obtains goods.
Embodiment 2
Formula:
Component A:
B component:
44V20L 170 parts
Preparation method:
Component A, B component are injected mould, the demoulding after being uniformly mixed at temperature 25 DEG C, and slaking 6 hours at 75 DEG C, sufficient reacting, obtains goods.
Embodiment 3
Formula:
Component A:
B component:
44V20L 166 parts
Preparation method is with embodiment 1.
Described in employing table 1, GB standard detects, and embodiment product properties is as follows:
Above embodiment is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Everyly according to technical spirit of the present invention, any simple amendment is done to above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims (21)

1. fire-retardant polysiocyanurate rigid foams, is characterized in that, its raw material comprises A material and B expects two components; Described A material comprises nitration mixture modification benzoic anhydride polyester polyol, flame retardant polyester polyvalent alcohol, polyether glycol, liquid flame retardant, composite catalyst, suds-stabilizing agent, pneumatogen and water; Described B material comprises polyisocyanates.
2. fire-retardant polysiocyanurate rigid foams according to claim 1, is characterized in that, in above-mentioned polyisocyanates, NCO content is 30 ~ 32%.
3. fire-retardant polysiocyanurate rigid foams according to claim 1, is characterized in that, nitration mixture modification benzoic anhydride polyester polyol is obtained by polycondensation by the mixture of Tetra hydro Phthalic anhydride, C4 ~ C6 di-carboxylic acid and dibasic alcohol.
4. fire-retardant polysiocyanurate rigid foams according to claim 3, is characterized in that, the number-average molecular weight of described nitration mixture modification benzoic anhydride polyester polyol is 350 ~ 630, and acid number is 1.5 ~ 2.5mgKOH/g.
5. fire-retardant polysiocyanurate rigid foams according to claim 4, is characterized in that, the mol ratio of the mixture of Tetra hydro Phthalic anhydride and C4 ~ C6 di-carboxylic acid is 4:1 ~ 1.5.
6. fire-retardant polysiocyanurate rigid foams according to claim 5, is characterized in that, the mixture of Tetra hydro Phthalic anhydride and C4 ~ C6 di-carboxylic acid and the mol ratio of dibasic alcohol are 1:(1.5 ~ 1.6).
7. fire-retardant polysiocyanurate rigid foams according to claim 6, is characterized in that, the mixture of described C4 ~ C6 diprotic acid, is the mixture of succinic acid, pentanedioic acid and hexanodioic acid.
8. fire-retardant polysiocyanurate rigid foams according to claim 7, is characterized in that, in the mixture of described C4 ~ C6 di-carboxylic acid, and succinic acid: pentanedioic acid: hexanodioic acid=1: 1.7 ~ 2.2: 2.5 ~ 3.8, weight ratio.
9. fire-retardant polysiocyanurate rigid foams according to claim 3, is characterized in that, described dibasic alcohol is C2 ~ C4 dibasic alcohol or its condenses.
10. fire-retardant polysiocyanurate rigid foams according to claim 1, is characterized in that, described flame retardant polyester polyvalent alcohol is that the hydrogen atom on carbon atom is optionally substituted by halogen, and has the polyester polyol of more than 2 functional groups, and hydroxyl value is at 200 ~ 270mgKOH/g.
11. fire-retardant polysiocyanurate rigid foams according to claim 1, is characterized in that, described polyether glycol is one or more in polyether Glycols, polyether-tribasic alcohol, polyethers tetravalent alcohol.
12. fire-retardant polysiocyanurate rigid foams according to claim 1, is characterized in that, described polyether glycol is polyoxypropylene polyol, polyoxyethylated polyols or polytetrahydrofuran polyol.
13. fire-retardant polysiocyanurate rigid foams according to claim 12, is characterized in that, the molecular weight of described polyether glycol is 4000 ~ 6000.
14. fire-retardant polysiocyanurate rigid foams according to claim 1, it is characterized in that, described liquid flame retardant be selected from three (chloro isopropyl) phosphoric acid ester (TCPP), three (2-propyloic) phosphine (TCEP), methyl-phosphoric acid dimethyl ester (DMMP), ethyl phosphonic acid diethyl ester (DEEP), triethyl phosphate (TEP) one or more.
15. fire-retardant polysiocyanurate rigid foams according to claim 14, it is characterized in that, described liquid flame retardant is the mixture of three (chloro isopropyl) phosphoric acid ester (TCPP) and triethyl phosphate (TEP), and weight ratio is: three (chloro isopropyl) phosphoric acid ester: triethyl phosphate (TEP)=20: 7=2.5 ~ 3: 1.
16. fire-retardant polysiocyanurate rigid foams according to claim 1, is characterized in that, described composite catalyst be tertiary amine catalyst, metallic salt catalyzer one or more.
17. fire-retardant polysiocyanurate rigid foams according to claim 1, is characterized in that, described composite catalyst is 5 Hes the mixture of 46, weight ratio is: 5: 46=1: 2.3 ~ 5.8.
18. fire-retardant polysiocyanurate rigid foams according to claim 1, is characterized in that, organic silicon surfactant selected by described suds-stabilizing agent.
19. fire-retardant polysiocyanurate rigid foams according to claim 1, is characterized in that, pneumatogen is selected from the chloro-1-fluoroethane of 1,1-bis-.
20. the fire-retardant polysiocyanurate rigid foams according to any one of claim 1 ~ 19, it is characterized in that, A material and B expect parts by weight as follows:
A expects:
B expects:
Polyisocyanates 150 ~ 180 parts
The parts by weight of A material and B material are as follows:
A expects: 99 ~ 108 parts, wherein, 99 ~ 108 parts refer to the total parts by weight of all materials;
B expects: 150 ~ 175 parts.
The method of the fire-retardant polysiocyanurate rigid foams described in 21. any one of preparation claim 1 ~ 20, is characterized in that, comprise the following steps:
(1) preparation of component A: by nitration mixture modification benzoic anhydride polyester polyol, flame-proof polyol, polyether glycol, liquid flame retardant, composite catalyst, suds-stabilizing agent, water, pneumatogen by being metered in reactor, temperature controls to stir 1 ~ 2h at 40-60 DEG C, discharging, at sealing, 10-30 DEG C, ventilates and preserves;
(2) preparation of hard polyurethane foam: inject mould, the demoulding after component A and B component being uniformly mixed at temperature 20-35 DEG C, slaking 6 ~ 8 hours at 65 ~ 75 DEG C, obtains described fire-retardant polysiocyanurate rigid foams.
CN201410836010.9A 2014-12-24 2014-12-24 Flame-retardant polyisocyanurate rigid foam and preparation method thereof Pending CN104592470A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104910349A (en) * 2015-06-11 2015-09-16 山东一诺威新材料有限公司 Polyisocyanurate-modified spray-type composite polyether, and preparation method and application thereof
CN106317362A (en) * 2016-08-10 2017-01-11 浙江振阳绝热科技有限公司 High-flame-retardant polyisocyanurate containing grafted halogen and preparation method
CN108948422A (en) * 2018-07-25 2018-12-07 浙江万盛股份有限公司 A kind of composite flame-retardant agent and its preparation method and application, a kind of polyurethane foam
CN109293868A (en) * 2018-09-30 2019-02-01 山东诺威新材料有限公司 It is a kind of applied to combined polyether and the high fire-retardance polyester polyol compound of foam
CN109438664A (en) * 2018-09-30 2019-03-08 山东诺威新材料有限公司 Household electrical appliances anti-flammability hard-foam polyurethane material and preparation method thereof
CN110003420A (en) * 2019-04-17 2019-07-12 南京和润隆环保科技有限公司 A kind of poly-isocyanurate foaming material and preparation method thereof
CN110845697A (en) * 2019-12-09 2020-02-28 河南铎润新材料有限公司 Polyurethane flame-retardant foam material
CN113698568A (en) * 2021-07-20 2021-11-26 佳化化学科技发展(上海)有限公司 Combined polyether, polyisocyanurate foam, preparation method and application thereof

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