CN104497251B - A kind of combined polyether, polyisocyanurate foam and preparation method thereof - Google Patents
A kind of combined polyether, polyisocyanurate foam and preparation method thereof Download PDFInfo
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- CN104497251B CN104497251B CN201510024003.3A CN201510024003A CN104497251B CN 104497251 B CN104497251 B CN 104497251B CN 201510024003 A CN201510024003 A CN 201510024003A CN 104497251 B CN104497251 B CN 104497251B
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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
- C08G18/4202—Two or more polyesters of different physical or chemical nature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- 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
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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
- C08G2110/0041—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
- 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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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a kind of combined polyether, polyisocyanurate foam and preparation method thereof, the raw material of combined polyether includes：34 parts of 31,520 4 parts of PEPA PS, 62,554 10 parts of PEPA CF, 30,020 2 parts of PEPA AK POL, 0.3 0.5 parts of foam stabiliser, 0.2 0.4 parts of catalyst, 2.5 3.5 parts of foaming agent, 0.15 0.2 parts of water and fire retardant；Wherein foaming agent is 1 chlorine, 3,3,3 trifluoro propenes；The preparation method of polyisocyanurate foam is included combinations thereof polyethers and isocyanates in mass ratio 1:1.4‑1:1.6 is well mixed, is poured into foamable reaction in mould and is molded.The polyisocyanurate foam of the present invention has excellent fire resistance, storage stability, dimensional stability, compression strength, environmental-protecting performance and heat-insulating property, and foaming process is without explosion-protection equipment.
Description
Technical field
The present invention relates to a kind of combined polyether, polyisocyanurate foam and preparation method thereof.
Background technology
With the increasingly raising of building thermal insulation material requirement, polyisocyanurate foam (PIR) system because reaction is simple,
The raw material of low cost can be used；With more preferable high/low temperature dimensional stability, lower thermolytic rate, in combustion process
Protection carbon-coating, which can be formed, has stronger anti-flammability；Mechanical strength is better than RPUF (PUR) system, production effect
The advantages that rate is high, increasing share is gradually occupied in building heat preservation market, shows American Architecture thermal insulating material according to investigations
It is PIR architecture heat preservation materials to expect 95% share, and PIR materials are used as foaming using a fluorine dichloroethanes (HCFC-141b) more at present
Agent, but basis《Montreal Agreement》, the developed country such as the U.S. and Europe and area prohibitted the use of hydrogen before and after 2003
Chlorofluorocarbon blowing agent HCFC-141b.And the production of Chinese Government's reduction HCFC and usage time table are then, HCFC
Produce and stop the production and use of HCFC comprehensively using the level for being frozen in 2013, the year two thousand thirty.
The entitled 1- chlorine of LBA foaming agents chemistry that Co., Ltd produces in Honeywell, 3,3,3 trifluoro propene (HFO-
1233zd), HF hydrocarbon is belonged to.LBA is colourless transparent liquid, has slight ether taste, no combustibility, LBA toxicity is low, to ozone layer
Influence is not lost, it is generally recognized that the latent value (ODP) of ozone-depleting is 0；Global warming potential (GWP) is less than 5, can meet simultaneously
《Montreal Protocol》With《The Kyoto Protocol》Environmental requirement；Without combustibility, foaming process is without explosion-protection equipment；Boiling point
It is 19 DEG C, easy to operate close to room temperature, can directly it be used on foaming machine；Good, the vapor phase thermal conductivity with polyalcohol compatibility
Low, the foam heat-insulating property that foams is splendid.As can be seen here, LBA can meet that environmental protection and safety requirements, and can meet polyurethane industries among others
Requirement, be existing foaming agent splendid substitute products.
However, in existing polyisocyanurate foam formula system, directly substitute HCFC with LBA foaming agents and send out
Infusion coordinates with conventional polyether polyalcohol or PEPA, and obtained polyisocyanurate foam has poor storage stability,
The problems such as dimensional stability is low, and thermal conductivity factor is higher.Therefore, make for reducing environmental pollution and improving isocyanurate foam
With desired consideration, all excellent different of the performances such as a kind of storage stability of exploitation, dimensional stability, thermal insulation, the feature of environmental protection is needed badly
Cyanurate foam.
The content of the invention
The technical problems to be solved by the invention are to overcome prepares poly-isocyanurate bubble using HCFC foaming agent
Foam not environmentally, environmental pollution it is serious, and prepare poly-isocyanurate using LBA foaming agents and poor storage stability, chi be present
The defects of very little stability is low, and thermal conductivity factor is higher, there is provided a kind of combined polyether, polyisocyanurate foam and preparation method thereof.
The present invention use flame retardant polyester polyalcohol CF-6255, either PEPA CF-6255 and PEPA PS-3152 or
PEPA PS-3152, PEPA CF-6255 and PEPA AK-POL-3002 are body material, from LBA
Foaming agent and specific foam stabiliser SD-221 or L-6900 prepare combined polyether, and environmental-protecting performance, stable storing is made with this
The very excellent polyisocyanurate foam of property, fire resistance, dimensional stability, compression strength everyway.
The invention provides a kind of combined polyether, the raw materials by weight portion meter of the combined polyether includes following components：
PEPA PS-3152 0-4 parts, PEPA CF-6255 4-10 parts, PEPA AK-POL-3002 0-2 parts,
Foam stabiliser 0.3-0.5 parts, catalyst 0.2-0.4 parts, foaming agent 2.5-3.5 parts, water 0.15-0.2 parts and fire retardant 3-4
Part；Described foaming agent is 1- chlorine, and 3,3,3 trifluoro propenes (HFO-1233zd), described foam stabiliser is SD-221 or L-
6900。
It is preferred that the raw materials by weight portion meter of the combined polyether includes following components：PEPA PS-3152
2-4 parts, PEPA CF-6255 4-10 parts, PEPA AK-POL-3002 0-2 parts, foam stabiliser 0.3-0.5
Part, catalyst 0.2-0.4 parts, foaming agent 2.5-3.5 parts, water 0.15-0.2 parts and fire retardant 3-4 parts；Described foaming agent is 1-
Chlorine, 3,3,3 trifluoro propenes (HFO-1233zd), described foam stabiliser are SD-221 or L-6900.
More preferably, the raw materials by weight portion meter of the combined polyether includes following components：PEPA PS-3152
2-4 parts, PEPA CF-6255 4-10 parts, PEPA AK-POL-3002 1-2 parts, foam stabiliser 0.3-0.5
Part, catalyst 0.2-0.4 parts, foaming agent 2.5-3.5 parts, water 0.15-0.2 parts and fire retardant 3-4 parts；Described foaming agent is 1-
Chlorine, 3,3,3 trifluoro propenes (HFO-1233zd), described foam stabiliser are SD-221 or L-6900.
Wherein, described PEPA PS-3152 is preferably provided by Nanjing Nanjing Si Taipan Chemical Co., Ltd.s, its
Degree of functionality is 2, hydroxyl value 300-330mgKOH/g, and the viscosity at its 25 DEG C is 2000-3000mPas, and moisture is less than
0.1wt%.Described PEPA CF-6255 is preferably provided by Jiangsu Fu Sheng new materials Co., Ltd, at its 25 DEG C
Viscosity is 13000-23000mPas, degree of functionality 2, number-average molecular weight 450, hydroxyl value 230-270mgKOH/g, and moisture is small
In 0.1wt%, acid number is less than 1mgKOH/g.Described PEPA AK-POL-3002 preferably respects the limited public affairs of chemical industry by love
Department provides, and the viscosity at its 25 DEG C is 2000-3000mPas, and degree of functionality 2, hydroxyl value is 300~330mgKOH/g.
Wherein, described foam stabiliser SD-221 is preferably produced by the high Chemical Co., Ltd. in middle Shandong, described bubble
Foam stabilizers L-6900 is preferably produced by Mitugao New Material Group company of the U.S..Described foam stabiliser is preferably
SD-221。
Wherein, described catalyst is catalyst commonly used in the art, generally amines catalyst or organic metal
Catalyst, preferably tertiary amine catalyst, it is more preferably N, N '-dimethyl benzylamine and quaternary ammonium salt catalyst TMR-2's is compound
Catalyst, the N, N '-dimethyl benzylamine and TMR-2 mass ratio are preferably 1:1-2:1.
Wherein, described 1- chlorine, 3,3,3 trifluoro propenes are preferably the model that Co., Ltd produces in Honeywell
LBA 1- chlorine, 3,3,3 trifluoro propenes.
Wherein, described water is preferably deionized water.
Wherein, described fire retardant is fire retardant commonly used in the art, preferably tricresyl phosphate (2- chloropropyls) ester
(TCPP), the one or more in three (2- carboxyethyls) phosphines (TCEP) and dimethyl methyl phosphonate (DMMP), are more preferably TCPP.
In a preferred embodiment of the present invention, the raw materials by weight portion meter of the combined polyether is made up of following components：
PEPA PS-3152 0-4 parts, PEPA CF-6255 4-10 parts, foam stabiliser 0.3-0.5 parts, catalyst
0.2-0.4 parts, foaming agent 2.5-3.5 parts, water 0.15-0.2 parts and fire retardant 3-4 parts；Described foaming agent is 1- chlorine, 3,3,3
Trifluoro propene (HFO-1233zd), described foam stabiliser are SD-221 or L-6900.
In another preferred embodiment of the present invention, the raw materials by weight portion meter of the combined polyether is by following component groups
Into：PEPA PS-3152 2-4 parts, PEPA CF-6255 4-10 parts, foam stabiliser 0.3-0.5 parts, catalysis
Agent 0.2-0.4 parts, foaming agent 2.5-3.5 parts, water 0.15-0.2 parts and fire retardant 3-4 parts；Described foaming agent is 1- chlorine, 3,3,
3 trifluoro propenes (HFO-1233zd), described foam stabiliser are SD-221 or L-6900.
In another embodiment of the present invention, the raw materials by weight portion meter of the combined polyether is by following component groups
Into：PEPA PS-3152 2-4 parts, PEPA CF-6255 4-10 parts, PEPA AK-POL-3002 1-2
Part, foam stabiliser 0.3-0.5 parts, catalyst 0.2-0.4 parts, foaming agent 2.5-3.5 parts, water 0.15-0.2 parts and fire retardant 3-
4 parts；Described foaming agent is 1- chlorine, and 3,3,3 trifluoro propenes (HFO-1233zd), described foam stabiliser is SD-221 or L-
6900。
Present invention also offers a kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) each raw material components of the combined polyether are well mixed by formula, produce polyisocyanurate foam group
Close polyethers；
(2) by the Premixed polyether for polyisocyanurate foam and isocyanates in mass ratio 1:1.4-1:1.6 mixing
Uniformly, it is poured into foamable reaction in mould to be molded, polyisocyanurate foam is made.
In step (1), described is mixed into this area routine operation, and described mixing is preferably fool proof in tool
Carry out in mixing kettle, more preferably carried out in stainless steel mixing kettle.The time of described mixing is preferably 0.5-1 hours.
In step (2), the mass ratio of the Premixed polyether for polyisocyanurate foam and isocyanates is preferably 1:
1.5。
In step (2), described isocyanates is preferably methyl diphenylene diisocyanate (MDI), is more preferably cigarette
The PM200 of Tai Wanhua productions.
In step (2), described grinding tool is this area conventional grinding tools, preferably box mould.
In step (2), described foaming is this area routine operation, and preferably high-pressure unit foams.Described foaming
Temperature is preferably 20-25 DEG C.
Present invention also offers the polyisocyanurate foam as made from above-mentioned preparation method.
Present invention also offers above-mentioned polyisocyanurate foam answering in exterior wall, oil-gas pipeline and tank body field of thermal insulation
With.
The polyisocyanurate foam of the present invention described will need to gather when being applied to exterior wall, oil-gas pipeline and tank body field of thermal insulation
Isocyanurate foam cuts into the shape needed for thin plate or shell etc..
It on the basis of common sense in the field is met, above-mentioned each optimum condition, can be combined, it is each preferably real to produce the present invention
Example.
Agents useful for same and raw material of the present invention are commercially available.
The positive effect of the present invention is：
(1) polyisocyanurate foam that the present invention obtains has excellent fire resistance, storage stability, dimensionally stable
Property and compression strength.
(2) present invention use brand-new forth generation foaming agent LBA (ODP values for 0,5) GWP value is less than substituting traditional use
HFC-141b (ODP values 0.065, GWP value 700), no combustibility, toxicity is low, ozone layer is not lost influence, can meet simultaneously
《Montreal Protocol》With《The Kyoto Protocol》Environmental requirement；Without combustibility, foaming process is without explosion-protection equipment；Operation
It is convenient, can directly it be used on foaming machine；Vapor phase thermal conductivity is low, and the foam heat-insulating property that foams is splendid.
Embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to described reality
Apply among a scope.The experimental method of unreceipted actual conditions in the following example, conventionally and condition, or according to business
Product specification selects.
Used raw material sources are as follows in following embodiments：
Flame retardant polyester polyalcohol CF-6255 is purchased from Jiangsu Fu Sheng new materials Co., Ltd.
PEPA PS-3152 is purchased from Nanjing Nanjing Si Taipan Chemical Co., Ltd.s.
PEPA AK-POL-3002 is purchased from Ai Jing Chemical Co., Ltd.s.
Foam stabiliser SD-221 is purchased from the high Chemical Co., Ltd. in middle Shandong.
Foam stabiliser L-6900 is purchased from Mitugao New Material Group company of the U.S..
Polyurethane composite catalyst N, N '-dimethyl benzylamine and TMR-2 are purchased from air Chemical Co., Ltd..
Fire retardant TCPP is purchased from Jiangsu supernatural power gram Chemical Co., Ltd..
1- chlorine, 3,3,3 trifluoro propenes (HFO-1233zd) are purchased from Co., Ltd in Honeywell, model LBA.
Methyl diphenylene diisocyanate is purchased from Yantai Wanhua, model PM200.
In following embodiments, the testing standard of every detection project is as follows：
Density Detection standard GB6343-1995；
Compressive strength examination criteria GB8813-2008；
Dimensional stability examination criteria GB8811-2008；
Thermal conductivity factor examination criteria GB/T10285-2008；
Oxygen index (OI) examination criteria GB/T 10707-2008.
Embodiment 1：
A kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) by 4 parts of PEPA PS-3152,6 parts of PEPA CF-6255, foam stabiliser SD-221 0.4
Part, catalyst：N, 0.25 part of N '-dimethyl benzylamine and 0.15 part of TMR-2,3 parts of foaming agent LBA, 0.15 part of water and fire retardant
3 parts of TCPP is added in stainless steel mixing kettle, is stirred 1 hour with 500 revs/min of rotating speed at room temperature, blowing produces poly- isocyanuric acid
Ester foam combined polyether；
(2) by Premixed polyether for polyisocyanurate foam and isocyanates PM200 according to mass ratio 1:1.5 is anti-at 20 DEG C
Should, it is about 40Kg/m to inject obtained core density in mould3Polyisocyanurate foam insulation material.The poly-isocyanurate
The physical property of foam is shown in Table 1.
Comparative example 1：
A kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) by 4 parts of PEPA PS-3152,6 parts of PEPA CF-6255, foam stabiliser SD-221 0.4
Part, catalyst：0.15 part of N, 0.25 part of N '-dimethyl benzylamine and TMR-2,4 parts of blowing agent H CFC-141b, 0.15 part of water and
3 parts of fire retardant TCPP is added in stainless steel mixing kettle, is stirred 1 hour with 500 revs/min of rotating speed at room temperature, blowing produces poly- different
Cyanurate foam combined polyether；
(2) by Premixed polyether for polyisocyanurate foam and isocyanates PM200 according to mass ratio 1:1.5 is anti-at 20 DEG C
Should, it is about 40Kg/m to inject obtained core density in mould3Polyisocyanurate foam insulation material.The poly-isocyanurate
The physical property of foam is shown in Table 1.
Table 1
Embodiment 2：
A kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) by 2 parts of PEPA PS-3152,8 parts of PEPA CF-6255, foam stabiliser SD-221 0.4
Part, catalyst：N, 0.15 part of N '-dimethyl benzylamine and 0.15 part of TMR-2,3 parts of foaming agent LBA, 0.15 part of water and fire retardant
3 parts of TCPP is added in stainless steel mixing kettle, is stirred 1 hour with 500 revs/min of rotating speed at room temperature, blowing produces poly- isocyanuric acid
Ester foam combined polyether.
(2) by Premixed polyether for polyisocyanurate foam and isocyanates PM200 according to mass ratio 1:1.5 is anti-at 20 DEG C
Should, it is about 40Kg/m to inject obtained core density in mould3Polyisocyanurate foam insulation material.The poly-isocyanurate
The physical property of foam is shown in Table 2.
Comparative example 2：
A kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) by 2 parts of PEPA PS-3152,8 parts of PEPA CF-6255, foam stabiliser SD-221 0.4
Part, catalyst：0.15 part of N, 0.15 part of N '-dimethyl benzylamine and TMR-2,4 parts of blowing agent H CFC-141b, 0.15 part of water and
3 parts of fire retardant TCPP is added in stainless steel mixing kettle, is stirred 1 hour with 500 revs/min of rotating speed at room temperature, blowing produces poly- different
Cyanurate foam combined polyether；
(2) by Premixed polyether for polyisocyanurate foam and isocyanates PM200 according to mass ratio 1:1.5 is anti-at 20 DEG C
Should, it is about 40Kg/m to inject obtained core density in mould3Polyisocyanurate foam insulation material.The poly-isocyanurate
The physical property of foam is shown in Table 2.
Table 2
Embodiment 3：
A kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) by 10 parts of PEPA CF-6255,0.4 part of foam stabiliser SD-221, catalyst：N, N '-dimethyl
3 parts of 0.15 part of 0.15 part of benzylamine and TMR-2,3 parts of foaming agent LBA, 0.15 part of water and fire retardant TCPP add stainless steel mixing
In kettle, stirred 1 hour with 500 revs/min of rotating speed at room temperature, blowing produces Premixed polyether for polyisocyanurate foam；
(2) by Premixed polyether for polyisocyanurate foam and isocyanates PM200 according to mass ratio 1:1.5 is anti-at 20 DEG C
Should, inject and the polyisocyanurate foam insulation material that core density is about 40Kg/m3 is made in mould.The poly-isocyanurate
The physical property of foam is shown in Table 3.
Comparative example 3：
A kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) by 10 parts of PEPA CF-6255,0.4 part of foam stabiliser SD-221, catalyst：N, N '-dimethyl
0.15 part of 0.15 part of benzylamine and TMR-2,4 parts of blowing agent H CFC-141b, 0.15 part of water and 3 parts of additions of fire retardant TCPP are stainless
In steel mixing kettle, stirred 1 hour with 500 revs/min of rotating speed at room temperature, it is poly- that blowing produces polyisocyanurate foam combination
Ether；
(2) by Premixed polyether for polyisocyanurate foam and isocyanates PM200 according to mass ratio 1:1.5 is anti-at 20 DEG C
Should, it is about 40Kg/m to inject obtained core density in mould3Polyisocyanurate foam insulation material.The poly-isocyanurate
The physical property of foam is shown in Table 3.
Table 3
Embodiment 4：
A kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) by 2 parts of PEPA PS-3152,6 parts of PEPA CF-6255, PEPA AK-POL-
3002 2 parts, 0.4 part of foam stabiliser SD-221, catalyst：0.15 part of N, 0.25 part of N '-dimethyl benzylamine and TMR-2, hair
3 parts of 3 parts of infusion LBA, 0.15 part of water and fire retardant TCPP are added in stainless steel mixing kettle, at room temperature with 500 revs/min of rotating speed
Stirring 1 hour, blowing produces Premixed polyether for polyisocyanurate foam；
(2) by Premixed polyether for polyisocyanurate foam and isocyanates PM200 according to mass ratio 1:1.5 is anti-at 20 DEG C
Should, it is about 40Kg/m to inject obtained core density in mould3Polyisocyanurate foam insulation material.The poly-isocyanurate
The physical property of foam is shown in Table 4.
Comparative example 4：
A kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) by 4 parts of PPG NJ-8238,6 parts of PEPA CF-6255, foam stabiliser SD-221 0.4
Part, catalyst：N, 0.25 part of N '-dimethyl benzylamine and 0.15 part of TMR-2,3 parts of foaming agent LBA, 0.15 part of water and fire retardant
3 parts of TCPP is added in stainless steel mixing kettle, is stirred 1 hour with 500 revs/min of rotating speed at room temperature, blowing produces poly- isocyanuric acid
Ester foam combined polyether；
(2) by Premixed polyether for polyisocyanurate foam and isocyanates PM200 according to mass ratio 1:1.5 is anti-at 20 DEG C
Should, it is about 40Kg/m to inject obtained core density in mould3Polyisocyanurate foam insulation material.The poly-isocyanurate
The physical property of foam is shown in Table 4.
Table 4
Embodiment 5：
A kind of preparation method of polyisocyanurate foam, it comprises the steps：
(1) by 3 parts of PEPA PS-3152,6 parts of PEPA CF-6255, PEPA AK-POL-
3002 1 parts, 0.4 part of foam stabiliser L-6900, catalyst：0.15 part of N, 0.25 part of N '-dimethyl benzylamine and TMR-2, hair
3 parts of 3 parts of infusion LBA, 0.15 part of water and fire retardant TCPP are added in stainless steel mixing kettle, at room temperature with 500 revs/min of rotating speed
Stirring 1 hour, blowing produces Premixed polyether for polyisocyanurate foam；
(2) by Premixed polyether for polyisocyanurate foam and isocyanates PM200 according to mass ratio 1:1.5 is anti-at 20 DEG C
Should, it is about 40Kg/m to inject obtained core density in mould3Polyisocyanurate foam insulation material.
Claims (9)
1. a kind of combined polyether, it is characterised in that the raw materials by weight portion meter of the combined polyether includes following components：Polyester
Polyalcohol PS-3152 2-4 parts, PEPA CF-6255 4-10 parts, PEPA AK-POL-3002 1-2 parts, foam
Stabilizer 0.3-0.5 parts, catalyst 0.2-0.4 parts, foaming agent 2.5-3.5 parts, water 0.15-0.2 parts and fire retardant 3-4 parts；Institute
The foaming agent stated is 1- chlorine, and 3,3,3 trifluoro propenes, described foam stabiliser is SD-221 or L-6900.
2. combined polyether as claimed in claim 1, it is characterised in that described foam stabiliser is SD-221；And/or institute
The catalyst stated is tertiary amine catalyst.
3. combined polyether as claimed in claim 2, it is characterised in that described catalyst is N, N '-dimethyl benzylamine and season
Ammonium salt in catalysis agent TMR-2 composite catalyst.
4. combined polyether as claimed in claim 3, it is characterised in that described catalyst is N, N '-dimethyl benzylamine and season
Ammonium salt in catalysis agent TMR-2 in mass ratio 1:1-2:The composite catalyst of 1 compounding.
5. a kind of preparation method of polyisocyanurate foam, it is characterised in that it comprises the steps：
（1）Each raw material components of any one of the claim 1-4 combined polyethers are well mixed by formula, produce poly- isocyanide urea
Acid esters foam combined polyether；
（2）By the Premixed polyether for polyisocyanurate foam and isocyanates in mass ratio 1:1.4-1:1.6 is well mixed,
It is poured into foamable reaction in mould to be molded, polyisocyanurate foam is made.
6. preparation method as claimed in claim 5, it is characterised in that step（1）In, described is blended in stainless steel mixing kettle
Interior progress, the time of described mixing is 0.5-1 hours；
And/or step（2）In, the mass ratio of the Premixed polyether for polyisocyanurate foam and isocyanates is 1:1.5；
And/or step（2）In, described isocyanates is methyl diphenylene diisocyanate；
And/or step（2）In, described mould is box mould；
And/or step（2）In, described foaming is foamed for high-pressure unit, and the temperature of described foaming is 20-25 DEG C.
7. preparation method as claimed in claim 6, it is characterised in that the methyl diphenylene diisocyanate is PM200.
A kind of 8. polyisocyanurate foam made from preparation method as any one of claim 5-7.
A kind of 9. answering in exterior wall, oil-gas pipeline and tank body field of thermal insulation of polyisocyanurate foam as claimed in claim 8
With.
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| US10131758B2 (en) * | 2016-07-25 | 2018-11-20 | Accella Polyurethane Systems, Llc | Polyurethane foam-forming compositions, methods of making low density foams using such compositions, and foams formed therefrom |
| EP3947501B1 (en) | 2019-04-02 | 2023-07-12 | Basf Se | Insulated pipe, comprising an environmentally-friendly propellant blown polyurethane foam with low friability |
| US11932761B2 (en) | 2021-02-08 | 2024-03-19 | Covestro Llc | HFCO-containing isocyanate-reactive compositions, polyurethane foams formed therefrom, and composite articles that include such foams |
| US11732081B2 (en) | 2021-06-08 | 2023-08-22 | Covestro Llc | HCFO-containing isocyanate-reactive compositions, related foam-forming compositions and flame retardant PUR-PIR foams |
| US11905707B2 (en) | 2021-06-29 | 2024-02-20 | Covestro Llc | Foam wall structures and methods for their manufacture |
| US11767394B2 (en) | 2021-12-09 | 2023-09-26 | Covestro Llc | HCFO-containing polyurethane foam-forming compositions, related foams and methods for their production |
| US11767407B1 (en) | 2022-04-21 | 2023-09-26 | Covestro Llc | HCFO-containing polyurethane foam-forming compositions, related foams and methods for their production |
| US11827735B1 (en) | 2022-09-01 | 2023-11-28 | Covestro Llc | HFO-containing isocyanate-reactive compositions, related foam-forming compositions and flame retardant PUR-PIR foams |
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