CN105461895A - Premixed polyether polyol, polyisocyanurate foam, as well as raw material composition and preparation method of polyisocyanurate foam - Google Patents
Premixed polyether polyol, polyisocyanurate foam, as well as raw material composition and preparation method of polyisocyanurate foam Download PDFInfo
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- CN105461895A CN105461895A CN201510979798.3A CN201510979798A CN105461895A CN 105461895 A CN105461895 A CN 105461895A CN 201510979798 A CN201510979798 A CN 201510979798A CN 105461895 A CN105461895 A CN 105461895A
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- polyester polyol
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/143—Halogen containing compounds
- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
- C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2205/00—Foams characterised by their properties
- C08J2205/10—Rigid foams
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
- C08J2475/08—Polyurethanes from polyethers
Abstract
The invention discloses premixed polyether polyol, polyisocyanurate foam, as well as a raw material composition and a preparation method of the polyisocyanurate foam. The premixed polyether polyol provided by the invention is prepared from the following components: polyether polyol A, polyester polyol A, a foam stabilizer, a trimer catalyzer, a foaming agent, water and a fire retardant; the foaming agent is a fluorinated hydrocarbon foaming agent; the fluorinated hydrocarbon foaming agent is 1,1,1,3,3-pentafluoropropane and/or 1,1,1,3,3-pentafluorobutane. Under the condition of not using an HCFC-141b foaming agent, the polyisocyanurate foam provided by the invention can reach the standards that the fire propagation index is less than or equal to 25 and the smoke increase index is less than or equal to 450, so that the polyisocyanurate foam provided by the invention meets the demands on inflaming retarding of thermal insulation materials used for high-rise buildings and corridors in National Fire Council Life Safety Act of America.
Description
Technical field
The present invention is specifically related to a kind of combined polyether, polyisocyanurate foam and feedstock composition thereof and preparation method.
Background technology
Urethane foam is organic polymer material, is inflammable material, once catch fire, because surface-area is large and thermal conductivity is low, material easily burns and not easily certainly puts out.In order to the flame retardant resistance making porous plastics reach desirable, except needs add except fire retardant, also need amino structure to be modified as urea groups structure, make the molecular structure of foam by polyurethane-modified be poly-isocyanurate.At present, the poly-isocyanurate of domestic production, mostly uses HCFC-141b to be pneumatogen, adopts simultaneously and adds a large amount of fire retardants to reach fire-retardant object; Although obtained bubble has higher oxygen index, its flue gas growth indices is very high, is generally greater than 450.HCFC-141b as the transitional substitute products of F-11, the performance closely F-11 of product, but its still exist ozone-depleting dive value, while also have higher Greenhouse effect value (GWP value); Therefore, prohibit the use at developed country HCFC-141b.
Therefore, the polyisocyanurate foam composition of a kind of high flame retardant of exploitation, environmental protection is needed badly.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the defect that in prior art, polyisocyanurate foam flame retardant resistance and the feature of environmental protection are all not good, and provides a kind of combined polyether, polyisocyanurate foam and feedstock composition thereof and preparation method.Polyisocyanurate foam of the present invention can under the condition not using HCFC-141b whipping agent, when detecting according to American Standard ASTME84-14 " building material surface combustion characteristic testing method ", fire propagation index≤25 and flue gas growth indices≤450 can be reached, therefore the flame-retardancy requirements of the polyisocyanurate foam of the present invention lagging material for Highrise buildings and corridor that reaches that " National Fire Protection council life security bill " require.
One of technical scheme of the present invention:
The invention provides a kind of combined polyether, it comprises each component of following parts by weight: 0 ~ 4 part of polyether glycol A, 6 ~ 10 parts of polyester polyol A, 0.3 ~ 0.5 part of suds-stabilizing agent, 0.2 ~ 0.4 part of catalyst for trimerization, 2 ~ 3 parts of whipping agents, 0.2 ~ 0.3 part of water and 1 ~ 3 part of fire retardant;
Described polyether glycol A is viscosity is 5000-7000Pas, functionality be 5.0 ± 0.3 and hydroxyl value be the polyether glycol of 420-460mgKOH/g;
Described polyester polyol A is viscosity is 6500-11500Pas, functionality be 2.2 ± 0.2 and hydroxyl value be the polyester polyol of 260-270mgKOH/g;
The viscosity of described polyether glycol A and polyester polyol A is the kinetic viscosity of 25 DEG C;
Described whipping agent is for fluoridizing hydrocarbon blowing agents; Described hydrocarbon blowing agents of fluoridizing is 1,1,1,3,3-pentafluoropropane (being called for short HFC-245fa) and/or 1,1,1,3,3-3-pentafluorobutane (being called for short HFC-365mfc).
Preferably, described combined polyether, it is made up of each component of following parts by weight: 0 ~ 4 part of polyether glycol A, 6 ~ 10 parts of polyester polyol A, 0.3 ~ 0.5 part of suds-stabilizing agent, 0.2 ~ 0.4 part of catalyzer, 2 ~ 3 parts of whipping agents, 0.2 ~ 0.3 part of water and 1 ~ 3 part of fire retardant.
Preferably, the moisture content of described polyether glycol A is less than 0.1%, and per-cent is the per-cent that the quality of water in described polyether glycol A accounts for described polyether glycol A total mass.Preferably, the number-average molecular weight of described polyether glycol A is 660-700.More preferably, described polyether glycol A is the model that Shanghai Dongda Chemical Co., Ltd. generates is the polyether glycol of SD4110.
Preferably, the moisture content of described polyester polyol A is less than 0.1%, and per-cent is the per-cent that the quality of water in described polyester polyol A accounts for described polyester polyol A total mass.Preferably, the number-average molecular weight of described polyester polyol A is 460-390.Preferably, the acid number of described polyester polyol A is less than 1mgKOH/g.More preferably, described polyester polyol A is the model that Ai Jing Chemical Co., Ltd. of Korea S generates is the polyester polyol of AK7004.
Described suds-stabilizing agent can be the suds-stabilizing agent of this area routine.Preferably, described suds-stabilizing agent is silicone suds-stabilizing agent.Preferably, the model that the silicone suds-stabilizing agent of described silicone suds-stabilizing agent to be the model that the model that air Chemical Co., Ltd. generates is the silicone suds-stabilizing agent of DC-193, Nanjing Dymatic Shichuang Chemical Co., Ltd. generates be AK8804 and Yingchuang Degussa Co., Ltd generate is one or more in the silicone suds-stabilizing agent of B8545.More preferably, described silicone suds-stabilizing agent is the model that Yingchuang Degussa Co., Ltd generates is the silicone suds-stabilizing agent of B8545.
Described catalyst for trimerization can be the trimerization reaction catalyzer of this area routine.Preferably, described catalyst for trimerization is amines catalyst and/or organometallic catalysts.
Described organometallic catalysts can be the organometallic catalysts of this area routine, is preferably potassium octanoate and/or Potassium ethanoate.Described amines catalyst can be the amines catalyst of this area routine, is preferably tertiary amine catalyst.Described tertiary amine catalyst is preferably the composite catalyst of N, N-dimethyl benzylamine and catalyzer JXP508; Described catalyzer JXP508 is the model that air Chemical Co., Ltd. generates is the tertiary amine catalyst of JXP508.Described composite catalyst refers to the mixture of described N, N-dimethyl benzylamine and catalyzer JXP508.Preferably, the mass ratio of N, N-dimethyl benzylamine and catalyzer JXP508 described in described composite catalyst is 1:1.
Preferably, to fluoridize hydrocarbon blowing agents described in be ODP value be zero whipping agent.Preferably, fluoridizing hydrocarbon blowing agents described in is 1,1,1,3,3-pentafluoropropane.
Preferably, described 1,1,1,3,3-pentafluoropropane is that Honeywell company limited produces.
Preferably, described water is deionized water.
Described fire retardant can be the fire retardant of this area routine, is preferably halogen fire retardant and/or phosphorus flame retardant.Preferably, described phosphorus flame retardant is one or more in three (2-chloropropyl) phosphoric acid ester (being called for short TCPP), three (2-chloroethyl) phosphoric acid ester (being called for short TCEP) and methyl-phosphoric acid dimethyl ester (DMMP); It is more preferably three (2-chloropropyl) phosphoric acid ester.
Preferably, the consumption of described polyether glycol A is 2 ~ 4 parts.
Preferably, the consumption of described polyester polyol A is 6 ~ 8 parts.
Preferably, the consumption of described suds-stabilizing agent is 0.3 ~ 0.4 part.
Preferably, the consumption of described catalyst for trimerization is 0.2 ~ 0.3 part.
Preferably, the consumption of described whipping agent is 2 ~ 2.5 parts.
Preferably, the consumption of described fire retardant is 1 ~ 2 part.
Combined polyether of the present invention can be prepared according to this area customary preparation methods, such as, each component of described combined polyether is mixed.Preferably, be blended in described in the fool proof mixing vessel of tool and carry out.Preferably, described mixing vessel is mixing kettle.Preferably, be blended in described in stainless steel vessel and carry out.Preferably, described mixing is carried out under agitation.Preferably, the time of described mixing is 0.5 ~ 1 hour.Preferably, described stirring is at room temperature carried out.Preferably, the speed of described stirring is 5r/min ~ 15r/min (such as 10r/min).
Technical scheme two of the present invention:
Present invention also offers a kind of feedstock composition of polyisocyanurate foam, it comprises component A and B component; Described component A is described combined polyether; Described B component is isocyanic ester; The mass ratio of described component A and B component is 1: 1.5 ~ 1: 2.0.
Described isocyanic ester can be the isocyanic ester of this area routine.Preferably, described isocyanic ester is polymeric diphenylmethane vulcabond (abbreviation polymeric MDI).Described polymeric diphenylmethane vulcabond refers to the mixture of pure diphenylmethanediisocyanate and polyphenyl polymethylene polyisocyanates.Preferably, in described isocyanic ester, the content of NCO is 30%-31%; Per-cent is mass percent.
Preferably, the mass ratio of described combined polyether and described isocyanic ester is 1: 1.8.
Preferably, described polymeric MDI is the model that Yantai ten thousand China produces is the polymeric MDI of PM200.
Technical scheme three of the present invention:
The invention provides a kind of preparation method of polyisocyanurate foam, it comprises the steps:, by described component A and the mixing of described B component, to foam, obtained polyisocyanurate foam.
The condition of the preparation method of described polyisocyanurate foam can be the various normal condition in this area.
Preferably, described foaming instrument is high-pressure unit.
Preferably, described blowing temperature is 20-25 DEG C.
Preferably, described foaming mould therefor is box mould.Preferably, described box mould is of a size of 0.5*0.5*0.5m ~ 2.0*1.2*0.6m.Preferably, the temperature of described mould is 50 ~ 60 DEG C.
According to this area general knowledge, described polyisocyanurate foam, when applying, being generally that component A and B component will not mix before use, and being generally namely mix i.e. use, and is generally that note foams in box mould.
Technical scheme four of the present invention:
The invention provides a kind of polyisocyanurate foam obtained by the preparation method of described polyisocyanurate foam.
Preferably, described polyisocyanurate foam is hard polyisocyanurate foam.
According to this area general knowledge, the polyisocyanurate foam that the present invention obtains generally is cut into the required shape such as thin plate or shell, is applied to the field of thermal insulation of building, pipeline and the tank body requiring high flame retardant.
In the present invention, described room temperature refers to that envrionment temperature is 10 ~ 35 DEG C.
Without prejudice to the field on the basis of common sense, above-mentioned each optimum condition, can arbitrary combination, obtains the preferred embodiments of the invention.
Agents useful for same of the present invention and raw material are all commercially.
Positive progressive effect of the present invention is: polyisocyanurate foam of the present invention has excellent flame retardant properties, foam smoke-producing amount is little.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.The experimental technique of unreceipted actual conditions in the following example, conventionally and condition, or selects according to catalogue.
Below in conjunction with embodiment, the present invention will be further described.
Raw material sources used in following examples are as follows:
Polyether glycol SD4110 is purchased from Shanghai Dongda Chemical Co., Ltd.
Flame retardant polyester polyvalent alcohol AK7004 is purchased from Korea S and likes to respect chemistry.
Polyether glycol SA380 is purchased from Shandong blue star Dong great Chemical Co., Ltd..
Polyether glycol SA460 is purchased from Shandong blue star Dong great Chemical Co., Ltd..
Silicone suds-stabilizing agent B8545 is purchased from and wins wound Degussa.
Urethane composite catalyst N, N-dimethyl benzylamine and JXP508 are purchased from air Chemical Co., Ltd..
Fire retardant TCPP is purchased from Jiangsu supernatural power gram Chemical Co., Ltd..
HFC-245fa is purchased from Honeywell.
Isocyanic ester is polymeric MDI, is purchased from Yantai ten thousand China, model PM200.
Embodiment 1 ~ embodiment 4, comparative example 1 and comparative example 4
The composition of raw materials of embodiments of the invention 1 ~ embodiment 4, comparative example 1 and comparative example 4 is in table 1, and effect data is in table 2.Concrete steps are as follows:
According to the formula in table 1, add in stainless steel mixing kettle by each composition except isocyanic ester, stir 1 hour with the rotating speed of 10r/min under room temperature, namely blowing obtains Premixed polyether for polyisocyanurate foam.
According to the formula in table 1, obtained combined polyether and isocyanic ester PM200 are carried out foamable reaction according to mass ratio at 20 DEG C, inject the obtained core density of mould and be about 40Kg/m
3rigid polyurethane foam heat insulation material, the physicals of each embodiment and comparative example gained hard polyurethane foams is in table 2.In table 1, "/" indicates that in table 2, "/" indicates without unit without interpolation.
Table 1
Table 2
Claims (10)
1. a combined polyether, it is characterized in that, it comprises each component of following parts by weight: 0 ~ 4 part of polyether glycol A, 6 ~ 10 parts of polyester polyol A, 0.3 ~ 0.5 part of suds-stabilizing agent, 0.2 ~ 0.4 part of catalyst for trimerization, 2 ~ 3 parts of whipping agents, 0.2 ~ 0.3 part of water and 1 ~ 3 part of fire retardant;
Described polyether glycol A is viscosity is 5000-7000Pas, functionality be 5.0 ± 0.3 and hydroxyl value be the polyether glycol of 420-460mgKOH/g;
Described polyester polyol A is viscosity is 6500-11500Pas, functionality be 2.2 ± 0.2 and hydroxyl value be the polyester polyol of 260-270mgKOH/g;
The viscosity of described polyether glycol A and polyester polyol A is the kinetic viscosity of 25 DEG C;
Described whipping agent is for fluoridizing hydrocarbon blowing agents; Described hydrocarbon blowing agents of fluoridizing is 1,1,1,3,3-pentafluoropropane and/or 1,1,1,3,3-3-pentafluorobutane.
2. combined polyether as claimed in claim 1, is characterized in that:
The moisture content of described polyether glycol A is less than 0.1%, and per-cent is the per-cent that the quality of water in described polyether glycol A accounts for described polyether glycol A total mass;
And/or the number-average molecular weight of described polyether glycol A is 660-700;
And/or the moisture content of described polyester polyol A is less than 0.1%, per-cent is the per-cent that the quality of water in described polyester polyol A accounts for described polyester polyol A total mass;
And/or the number-average molecular weight of described polyester polyol A is 460-390;
And/or the acid number of described polyester polyol A is less than 1mgKOH/g;
And/or described suds-stabilizing agent is silicone suds-stabilizing agent;
And/or described catalyst for trimerization is amines catalyst and/or organometallic catalysts;
And/or described water is deionized water;
And/or described fire retardant is halogen fire retardant and/or phosphorus flame retardant.
3. combined polyether as claimed in claim 2, is characterized in that:
The polyether glycol of described polyether glycol A to be model be SD4110;
And/or, the polyester polyol of described polyester polyol A to be model be AK7004;
And/or described organometallic catalysts is potassium octanoate and/or Potassium ethanoate;
And/or described amines catalyst is tertiary amine catalyst;
And/or, the silicone suds-stabilizing agent of described silicone suds-stabilizing agent to be model be DC-193, model to be the silicone suds-stabilizing agent of AK8804 and model be in the silicone suds-stabilizing agent of B8545 one or more;
And/or described phosphorus flame retardant is one or more in three (2-chloropropyl) phosphoric acid ester, three (2-chloroethyl) phosphoric acid ester and methyl-phosphoric acid dimethyl ester.
4. combined polyether as claimed in claim 3, is characterized in that:
Described tertiary amine catalyst is the composite catalyst of N, N-dimethyl benzylamine and catalyzer JXP508.
5. the combined polyether according to any one of Claims 1 to 4, is characterized in that:
The consumption of described polyether glycol A is 2 ~ 4 parts;
And/or the consumption of described polyester polyol A is 6 ~ 8 parts;
And/or the consumption of described suds-stabilizing agent is 0.3 ~ 0.4 part;
And/or the consumption of described catalyst for trimerization is 0.2 ~ 0.3 part;
And/or the consumption of described whipping agent is 2 ~ 2.5 parts;
And/or the consumption of described fire retardant is 1 ~ 2 part.
6. a feedstock composition for polyisocyanurate foam, is characterized in that, it comprises component A and B component; Described component A is such as combined polyether according to any one of Claims 1 to 5; Described B component is isocyanic ester; The mass ratio of described component A and B component is 1: 1.5 ~ 1: 2.0.
7. feedstock composition as claimed in claim 6, is characterized in that:
Described isocyanic ester is polymeric diphenylmethane vulcabond;
And/or the mass ratio of described combined polyether and described isocyanic ester is 1: 1.8.
8. a preparation method for polyisocyanurate foam as claimed in claims 6 or 7, is characterized in that, it comprises the steps:, by described component A and the mixing of described B component, to foam, obtained polyisocyanurate foam.
9. preparation method as claimed in claim 8, is characterized in that:
Described foaming instrument is high-pressure unit;
And/or described blowing temperature is 20-25 DEG C;
And/or described foaming mould therefor is box mould.
10. the polyisocyanurate foam obtained by the preparation method of polyisocyanurate foam described in claim 8 or 9.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107474209A (en) * | 2017-09-06 | 2017-12-15 | 佛山市鸿宝丽化工有限公司 | The preparation method and purposes of foam compositions, polyurethane plastics and polyurethane plastics |
| CN111630080A (en) * | 2018-01-16 | 2020-09-04 | 亨茨曼国际有限公司 | Polyisocyanurate comprising foams with long cream time and fast curing behaviour |
| CN113402696A (en) * | 2020-12-28 | 2021-09-17 | 上海东大聚氨酯有限公司 | High-flame-retardance low-temperature foaming type door and window strip penetrating foaming material, polyurethane foam and preparation method of polyurethane foam |
| CN115298251A (en) * | 2020-03-25 | 2022-11-04 | 东洋纺株式会社 | Flame-retardant biaxially oriented polyester film |
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