CN105440258B - A kind of hard polyurethane foams, its feedstock composition, preparation method and applications - Google Patents
A kind of hard polyurethane foams, its feedstock composition, preparation method and applications Download PDFInfo
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- CN105440258B CN105440258B CN201510954918.4A CN201510954918A CN105440258B CN 105440258 B CN105440258 B CN 105440258B CN 201510954918 A CN201510954918 A CN 201510954918A CN 105440258 B CN105440258 B CN 105440258B
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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
- C08G18/4804—Two or more polyethers 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
- 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
- C08J9/141—Hydrocarbons
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- C—CHEMISTRY; METALLURGY
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- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
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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
- 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
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
- C08J2203/182—Binary blends of expanding agents of physical blowing agents, e.g. acetone and butane
-
- 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
-
- 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
-
- 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
- C08J2375/08—Polyurethanes from polyethers
Abstract
The invention discloses a kind of hard polyurethane foams, its feedstock composition, preparation method and applications.The invention provides a kind of combined polyether feedstock composition, it is characterised in that by weight including following raw material components：30 50 parts of PPG SU 450L, 20 30 parts of 3152,30 50 parts of PEPA PS, 7100,23 parts of PPG SD foam stabilisers, 1.5 2.5 portions of polyurethane synthetic catalysts, 10 12 parts, 7 parts HFC 245fa of pentamethylene and 1.6 1.8 parts of water.The combined polyether of the present invention mixes with isocyanates, foaming obtains hard polyurethane foams, plays a part of filling and is incubated.The hard polyurethane foams environmental protection of the present invention, safety, good fluidity, good stability of the dimension, compression strength height, thermal conductivity factor are low, and substituting field, especially electric heater industry in HCFC 141B will have broad application prospects.
Description
Technical field
The present invention relates to a kind of hard polyurethane foams, its feedstock composition, preparation method and applications.
Background technology
According to《Montreal Protocol》Defined HCFCs eliminates timetable, the HCFCs production and consumptions of developing country
2009-2010 yearly mean levels were frozen in 2013, cut down within 2015 10% on this basis, the year two thousand twenty cuts down 35%,
Cut down 67.5% within 2025, realize to the year two thousand thirty and eliminate completely.
CFC-11 is substituted at present；And substitute HCFC-141B also has certain destruction to ozone layer.Therefore,
All countries for participating in Montreal Convention will eliminate HCFC-141B use according to schedule, be sent out in Europe, the U.S., Japan etc.
To country, HCFC-141B has been stopped using.China is also faced with HCFC-141B's as the country for participating in Montreal Convention
Substitute work；
At present, electric heater industry at home is also using the polyurethane foam that HCFC-141B is foaming agent to be used as guarantor
Adiabator.It is limited with HCFC-141B, especially when products export is to developed country because it is environmentally friendly the reason for be limited
Problem is more and more prominent.Therefore, the low replacement HCFC-141B foaming of good stability of the dimension, compression strength height, thermal conductivity factor is found
Polyurethane is the current technical problem for being badly in need of solving.
The content of the invention
The technical problems to be solved by the invention are to overcome in the prior art, and HCFC-141B is the poly- ammonia of foaming agent
Ester foam will be eliminated, its substitute poor dimensional stability, the defects of compression strength is low, thermal conductivity factor is high and provide one kind
Hard polyurethane foams, its feedstock composition, preparation method and applications.The rigid polyurethane foam of the present invention, dimensional stability
Good, compression strength height, thermal conductivity factor are low to have a extensive future in HCFC-141B replacements field, especially electric heater sector application.
The invention provides a kind of combined polyether feedstock composition, by weight including following raw material components：30-50 parts
PPG SU-450L, 20-30 part PEPA PS-3152,30-50 part PPG SD-7100,2-3 part foam
Stabilizer, 1.5-2.5 part polyurethane synthetic catalyst, pentamethylene 10-12 parts, 7 parts of HFC-245fa and 1.6-1.8 part water.
In the present invention, described PPG SU-450L is conventional commercial product in this area, and preferably its viscosity is
7000-9000mPas (25 DEG C), number-average molecular weight 590, hydroxyl value 440-460mgKOH/g, moisture are less than 0.1wt%；Further
It is preferred that the PPG SU-450L of Shandong Lanxing Dongda Chemical Co., Ltd's production.
In the present invention, described PEPA PS-3152 is conventional commercial product in this area, and preferably its viscosity is
2000-3000mPas (25 DEG C), hydroxyl value 300-330mgKOH/g, moisture are less than 0.1wt%；Further preferred Nanjing Nanjing this
The PEPA PS-3152 of Tai Pan Chemical Co., Ltd.s production.
In the present invention, the PPG SD-7100 is the commercial goods of Shanghai Dongda Chemical Co., Ltd.'s production, excellent
It is 6500-11500mPas (25 DEG C) to select viscosity, degree of functionality 4, hydroxyl value 300-330mgKOH/g, and moisture is less than
0.1wt%.
In the present invention, described foam stabiliser is conventional use of all kinds of foam stabilizations in hard polyurethane foams field
Agent, preferably silicone foam stabiliser, described silicone foam stabiliser preferred foams stabilizer B8545 or foam stabiliser
B8544 etc., described foam stabiliser B8545 or foam stabiliser B8544 manufacturer preferably win wound Degussa (China)
Investment Co., Ltd.
In the present invention, described polyurethane synthetic catalyst is urging for hard polyurethane foams conventional in the art
Agent, amines catalyst and/or organo-metallic catalyst can be used；Preferred tertiary amine class catalyst, the catalysis of described tertiary amines
Agent preferred N, N, N ', N ", N "-five methyl diethylentriamine, N, N- dimethyl cyclohexyl amines and TMR-2.When using N, N, N ',
When N ", N "-five methyl diethylentriamine, N, N- dimethyl cyclohexyl amines and TMR-2 mixture are polyurethane synthetic catalyst,
Described N, N, N ', N ", N "-five methyl diethylentriamine, described N, the matter of N- dimethyl cyclohexyl amines and described TMR-2
Measure ratio preferably 1:(2~8):(2~3), such as 1:2:2、1:2.7:2、1:3.6:2.4 or 1:7.5:3.
In the present invention, described pentafluoropropane (HFC-245fa) can be conventional commercial HFC-245fa in this area, excellent
It is Honeywell Int Inc. to select manufacturer.
In the present invention, the preferred deionized water of described water.
The described combined polyether feedstock composition of the present invention, preferably includes following raw material components by weight：30-50
Part PPG SU-450L, 20-30 part PEPA PS-3152,30-50 part PPG SD-7100,2-3 part bubble
Foam stabilizers B8544,0.2-0.3 part N, N, N ', N ", N "-five methyl diethylentriamine, 0.8-1.5 parts N, N- diformazan basic ring
Hexylamine, 0.6 part of TMR-2,10-12 part pentamethylene, 7 parts of HFC-245fa and 1.6-1.8 part water.
Present invention also offers a kind of preparation method of combined polyether, it comprises the following steps：By described combined polyether
Feedstock composition each composition in addition to foaming agent uniformly mixes according to mass fraction, then by mixture and foaming at 10 DEG C~15 DEG C
Agent, it is well mixed to obtain combined polyether.
In the preparation method of described combined polyether, described mixing is preferably entered in having fool proof mixing kettle
OK, the fool proof mixing kettle of described tool preferably has fool proof stainless steel mixing kettle.Described incorporation time is excellent
Select 0.5 hour~1 hour, such as 45 minutes.
In the preparation method of described combined polyether, temperature preferably 14 DEG C~15 that described mixture mixes with foaming agent
℃。
In the preparation method of described combined polyether, preferably 10 minutes time that described mixture mixes with foaming agent~
1 hour, such as 15 minutes.
Present invention also offers combined polyether made from the preparation method of described combined polyether.
Present invention also offers a kind of composition for being used to prepare hard polyurethane foams, it includes described combined polyether
And polyphenyl polymethylene polyisocyanates, wherein described combined polyether and described polyphenyl polymethylene polyisocyanates
Mass ratio be (1:1.1)~(1:1.25).
In the present invention, the mass ratio preferably 1 of described combined polyether and isocyanates：1.25.
In the present invention, described polyphenyl polymethylene polyisocyanates are the more methylenes of more phenyl commonly used in the art
Quito isocyanates, preferably methyl diphenylene diisocyanate, further preferred Yantai Wanhua Chemical Co., Ltd. production
PM200。
Present invention also offers a kind of preparation method of hard polyurethane foams, it comprises the following steps：By described group
Polyethers and described polyphenyl polymethylene polyisocyanates are closed according to mass ratio (1:1.1)~(1:1.25) ratio is mixed
Close, foaming, that is, obtain hard polyurethane foams.
In the preparation method of described hard polyurethane foams, described mixing, foaming are preferably entered using high pressure machines
Row mixing, foaming.Described mixing, preferably 18 DEG C~20 DEG C of the temperature of foaming.Described mixing, preferably 7 points of the time of foaming
Clock~15 minute, such as 8 minutes.
Present invention also offers hard polyurethane foams made from the preparation method of described hard polyurethane foams.
Present invention also offers application of the described hard polyurethane foams as insulation material.Described application is preferably electric
Field of water heaters.
Without prejudice to the field on the basis of common sense, above-mentioned each optimum condition, can be combined, and it is each preferably 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：The present invention is compounded by the adjustment to polyethers system by pentamethylene
HFC-245fa is the polyurethane that foaming agent substitutes HCFC-141B foaming, has the advantages that zero odp value, low thermal conductivity, completely
Meet the environmental requirement that HCFC-141B is substituted in electric heater industry, the requirement for substituting HCFC-141B can be reached.The present invention
Combined polyether when in use, it can be mixed with isocyanates, note between shell and inner bag and foamed, that is, obtain hard
Polyurethane foam, so as to play a part of filling and be incubated.And the combined polyether of the present invention can be good at meeting electric heater
Environmental protection, safety, good fluidity, dimensionally stable can be made to the manufacturing process and performance requirement of hard polyurethane foams in field
The all very excellent hard polyurethane foams of various aspects of performance such as property is good, compression strength is high, thermal conductivity factor is low, are replaced in HCFC-141B
Will have broad application prospects for field, especially electric heater industry.
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 in following examples, PPG SU-450L is purchased from Shandong Lanxing Dongda Chemical Co., Ltd.It is poly-
Ethoxylated polyhydric alcohol SD-7100 is purchased from Shanghai Dongda Polyurethane Co., Ltd, and PEPA PS-3152 is purchased from Nanjing Nanjing Si Taipan
Chemical Co., Ltd., foam stabiliser B-8544 are purchased from Evonik Degussa (China) Co., Ltd., isocyanates PM200 purchases
In Yantai Wanhua Polyurethane Co., Ltd.PPG SA460 be purchased from Shandong Lanxing Dongda Chemical Co., Ltd,
It is big that PPG YD1050 is purchased from Hebei Yadong Chemical Group Co., Ltd, PPG SA380 is purchased from Shandong blue star east
Chemical industry Co., Ltd.
Embodiment 1-3
The weight of each component of combined polyether feedstock composition and isocyanates in embodiment 1-3, comparative example 2 and comparative example 3
It is specifically as shown in table 1 to measure number.
Table 1
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 2 | Comparative example 3 |
| PPG SU-450L | 30 | 40 | 50 | - | 40 |
| PPG SD-7100 | 50 | 30 | 30 | - | 30 |
| PEPA PS-3152 | 20 | 30 | 20 | - | 30 |
| PPG SA460 | - | - | - | 40 | |
| PPG YD1050 | - | - | - | 30 | |
| PPG SA380 | - | - | - | 30 | |
| Foam stabiliser B-8544 | 2 | 2.5 | 3 | 2.5 | 2.5 |
| N, N, N ', N ", N "-five methyl diethylentriamine | 0.2 | 0.3 | 0.25 | 0.3 | 0.3 |
| N, N- dimethyl cyclohexyl amine | 1.5 | 0.8 | 0.9 | 0.6 | 0.8 |
| TMR-2 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Deionized water | 1.8 | 1.7 | 1.6 | 1.7 | 1.7 |
| Pentamethylene | 10 | 11 | 12 | ||
| HCFC-141B | 22 | 22 | |||
| HFC-245fa | 7 | 7 | 7 | ||
| The total component of combined polyether | 123.1 | 123.9 | 125.35 | 127.7 | 127.9 |
| Isocyanates PM200 | 153.9 | 154.9 | 156.7 | 159.6 | 159.9 |
(1) preparation of combined polyether
By combined polyether feedstock composition in addition to foaming agent each composition in stainless steel mixing kettle uniformly mixing 45 minutes, so
Mixture freezing processing is added into above-mentioned foaming agent to 14 DEG C afterwards, continues mixing 15 minutes, you can obtain combined polyether.
(2) preparation of polyurethane foam
By described combined polyether and polyphenyl polymethylene polyisocyanates according to mass ratio 1：1.25 in 18 DEG C of progress
Mixing, foaming 8 minutes, inject and electric heater rigid polyurethane foam heat insulation material are made in electric heater and inner bag centre.
Comparative example 1
Comparative example 1 is polyurethane foam finished product, product type made of existing Shanghai Dongda Polyurethane Co., Ltd commercially available prod
Number it is DJD-102, the foaming agent that the product uses is HCFC-141B；Foam position power taking water-heater water tank moulded foam.
Effect example 1
Hard polyurethane foams are made compared with product in comparative example 1-3 in embodiment 1-3, test result see the table below
2。
Table 2
Test result indicates that the hard polyurethane foams of present invention gained have higher compressive strength, more preferable low temperature
Dimensional stability and lower thermal conductivity factor.
Claims (13)
1. a kind of combined polyether feedstock composition, it is characterised in that by weight including following raw material components：30-50 part polyethers
Polyalcohol SU-450L, 20-30 part PEPA PS-3152,30-50 part PPG SD-7100,2-3 part foam stabilization
Agent, 1.5-2.5 part polyurethane synthetic catalyst, pentamethylene 10-12 parts, 7 parts of HFC-245fa and 1.6-1.8 part water.
2. combined polyether feedstock composition as claimed in claim 1, it is characterised in that：
Described PPG SU-450L viscosity is 7000-9000mPas, number-average molecular weight 590, hydroxyl value 440-
460mgKOH/g, moisture are less than 0.1wt%；
And/or
Described PEPA PS-3152 viscosity is 2000-3000mPas, hydroxyl value 300-330mgKOH/g, and moisture is less than
0.1wt%；
And/or
The PPG SD-7100 viscosity is 6500-11500mPas, degree of functionality 4, hydroxyl value 300-330mgKOH/
G, moisture are less than 0.1wt%；
And/or
Described water is deionized water；
And/or
Described foam stabiliser is silicone foam stabiliser；
And/or
Described polyurethane synthetic catalyst is amines catalyst and/or organo-metallic catalyst.
3. combined polyether feedstock composition as claimed in claim 2, it is characterised in that：
Described silicone foam stabiliser is foam stabiliser B8545 or foam stabiliser B8544；
And/or
Described tertiary amine catalyst is N, N, N ', N ", N "-five methyl diethylentriamine, N, N- dimethyl cyclohexyl amines and
TMR-2。
4. combined polyether feedstock composition as claimed in claim 3, it is characterised in that：
Described N, N, N ', N ", N "-five methyl diethylentriamine, described N, N- dimethyl cyclohexyl amines and described TMR-2
Mass ratio be 1:(2~8):(2~3).
5. combined polyether feedstock composition as claimed in claim 1, it is characterised in that：Described combined polyether material combination
Thing, by weight including following raw material components：30-50 part PPG SU-450L, 20-30 part PEPAs PS-
3152nd, 30-50 parts PPG SD-7100,2-3 parts foam stabiliser B8544,0.2-0.3 part N, N, N ', the first of N ", N "-five
Base diethylenetriamines, 0.8-1.5 parts N, N- dimethyl cyclohexyl amine, 0.6 part of TMR-2,10-12 part pentamethylene, 7 parts of HFC-
245fa and 1.6-1.8 part water.
6. a kind of preparation method of combined polyether, it is characterised in that it comprises the following steps：By any one of Claims 1 to 5 institute
The combined polyether feedstock composition stated each composition in addition to foaming agent uniformly mixes according to mass fraction, then will at 10 DEG C~15 DEG C
Mixture and foaming agent, it is well mixed to obtain combined polyether.
7. the preparation method of combined polyether as claimed in claim 6, it is characterised in that：The preparation method of described combined polyether
In, described being blended in the fool proof mixing kettle of tool is carried out；
And/or
Described incorporation time is 0.5 hour~1 hour；
And/or
The temperature that described mixture mixes with foaming agent is 14 DEG C~15 DEG C；
And/or
In the preparation method of described combined polyether, the time that described mixture mixes with foaming agent is 10 minutes~1 hour.
8. combined polyether made from the preparation method of combined polyether as claimed in claims 6 or 7.
9. a kind of composition for being used to prepare hard polyurethane foams, it is characterised in that it includes the combination described in claim 8
Polyethers and polyphenyl polymethylene polyisocyanates, wherein described combined polyether and the more isocyanides of described polyphenyl polymethylene
The mass ratio of acid esters is (1:1.1)~(1:1.25).
10. the composition as claimed in claim 9 for being used to prepare hard polyurethane foams, it is characterised in that：Described more benzene
Quito methylene polyisocyanates is methyl diphenylene diisocyanate.
11. a kind of preparation method of hard polyurethane foams, it is characterised in that it comprises the following steps：By described in claim 8
Combined polyether and described polyphenyl polymethylene polyisocyanates according to mass ratio (1:1.1)~(1:1.25) ratio is entered
Row mixing, foaming, that is, obtain hard polyurethane foams.
12. hard polyurethane foams made from the preparation method of hard polyurethane foams as claimed in claim 11.
13. application of the hard polyurethane foams as claimed in claim 12 as insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106397709A (en) * | 2016-09-05 | 2017-02-15 | 珠海格力电器股份有限公司 | Polyurethane foaming composition, polyurethane foaming process and water heater |
| CN106478913B (en) * | 2016-09-29 | 2019-10-01 | 上海东大聚氨酯有限公司 | Combined polyether, polyurethane foam and its feedstock composition, preparation method and application |
| CN106750489B (en) * | 2016-12-26 | 2019-11-26 | 青岛海尔股份有限公司 | Foaming agent and hard polyurethane foam |
| CN109400940B (en) * | 2018-09-28 | 2022-03-01 | 上海东大聚氨酯有限公司 | Conjugate polyethers, polyisocyanurate continuous sheets derived therefrom, and methods of making same |
| CN109749039A (en) * | 2018-12-14 | 2019-05-14 | 上海东大聚氨酯有限公司 | Flame retardant type water-heater water tank combined polyether, flame retardant polyurethane insulating foam and preparation method thereof |
| CN109627748A (en) * | 2018-12-24 | 2019-04-16 | 宁波酷尔塑料科技有限公司 | A kind of preparation method of polyurethane foamed material |
| CN112708094A (en) * | 2020-12-28 | 2021-04-27 | 上海东大聚氨酯有限公司 | Environment-friendly combined polyether and polyurethane foam for ultralow-temperature incubator and preparation method thereof |
| CN116262811A (en) * | 2021-12-13 | 2023-06-16 | 山东一诺威新材料有限公司 | Combined polyether and polyurethane foam for outdoor high-capacity heat-insulating kettle |
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| JP2007153989A (en) * | 2005-12-02 | 2007-06-21 | Toyo Tire & Rubber Co Ltd | Polyol composition for rigid polyurethane foam |
| CN101125910A (en) * | 2006-08-16 | 2008-02-20 | 广东科龙电器股份有限公司 | Hard polyurethane foam plastic and producing method thereof |
| CN103502689B (en) * | 2011-07-08 | 2016-05-04 | 住友重机械工业株式会社 | Epicyclic reduction gear unit |
| WO2013077696A1 (en) * | 2011-11-25 | 2013-05-30 | 주식회사 엘지화학 | Resin mixture |
| KR20140116421A (en) * | 2011-12-19 | 2014-10-02 | 허니웰 인터내셔널 인코포레이티드 | Compositions of 1,1,1,3,3-pentafluoropropane and cyclopentane |
| CN103665296B (en) * | 2012-09-21 | 2016-02-24 | 上海东大聚氨酯有限公司 | Low temperature is low leads polyurethane foam, feedstock composition, combined polyether and preparation method |
| CN104045847A (en) * | 2013-12-17 | 2014-09-17 | 中集集团集装箱控股有限公司 | Foaming agent composition, foaming body composition and foaming body preparation method |
| CN104497259B (en) * | 2015-01-16 | 2017-07-04 | 上海东大聚氨酯有限公司 | Combined polyether, feedstock composition, polyurethane foam and its preparation method and application |
| CN105038182B (en) * | 2015-08-28 | 2017-07-04 | 上海东大聚氨酯有限公司 | Combined polyether, polyurethane raw material composition, foam and preparation method and application |
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