CN106478913A - Combined polyether, polyurethane foam and its feedstock composition, preparation method and application - Google Patents
Combined polyether, polyurethane foam and its feedstock composition, preparation method and application Download PDFInfo
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- CN106478913A CN106478913A CN201610865273.1A CN201610865273A CN106478913A CN 106478913 A CN106478913 A CN 106478913A CN 201610865273 A CN201610865273 A CN 201610865273A CN 106478913 A CN106478913 A CN 106478913A
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- polyether 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
- C08G18/28—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
- 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
- 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
- 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
- C08G2101/00—Manufacture of cellular products
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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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses combined polyether, polyurethane foam and its feedstock composition, preparation method and application.Combined polyether includes component：35 55 parts of polyether polyol A, 20 40 parts of polyether polyol B, 10 30 parts of PEPA C, 23 parts of foam stabiliser, 35 parts of catalyst, 12 14 parts of foaming agent and 2.0 2.3 parts of water；Polyether polyol A, B, the viscosity of C are respectively 5,000 6000,6,500 11500,8000 13000mPa s, and hydroxyl value is respectively 400 440,360 400,160 180mgKOH/g；Catalyst is catalyst compounded；Foaming agent is Pentamethylene..Polyurethane foam, its feedstock composition includes combinations as those above polyethers and isocyanates, and its preparation method is to carry out foaming by the mixing of each raw material components.The raw material of polyurethane foam of the present invention can achieve a material feeding and filling effect is good.
Description
Technical field
The present invention relates to a kind of combined polyether, polyurethane foam and its feedstock composition, preparation method and application.
Background technology
Conventional dispensers usually only stay in beverage and snack food in the impression of people, and nearly 2 years with automatic selling
The upgrading of cargo aircraft manufacturing technology, present automatic vending pattern has broken away from the restriction of merchandise sales category substantially, except biography
Outside the beverage of system and snack food, realize the bridging of multiple fields at present, comprised fresh, Mature Audiences, packed meal, cosmetics, clothes
Dress etc., wherein especially with fresh the most noticeable！Manyly occurred in that at present fresh (inclusion agricultural product)+automatic vending machine+
The business development pattern of community.And among these, Shanghai is even more away in prostatitis, " agricultural product+automatic have been walked out in the scale that takes the lead in
The pattern of vending machine+community ", and existing tens thousand of residents have enjoyed this service.
The heat-insulation layer material of traditional sales counter is based on polyphenyl foam at present.Polyphenyl foam have light weight, heat conductivity low,
The low advantage of water absorption, but its intensity difference, easily ftracture, and in reality, polyphenyl foam heat-insulation layer obscission is commonplace, and
And polyphenyl foam is because self-strength is limited, weight capacity is poor, carries out reinforcement process applying man-hour requirement, this restrict polyphenyl bubble
The use of foam.
Polyurethane foam is presently the most preferable insulation material for polyphenyl foam.Adopt polyurethane foam at present
Foam is as the polyurethane foam being produced with combined polyether using general refrigerator more than the fresh sales counter of insulation material.But due to life
Fresh sales counter volume super large, typically up to more than 1000L, and general refrigerator volume is typically in 100～200L, and maximum is also with regard to 400L
Left and right, this just proposes requirements at the higher level in material feeding to the material flow of polyurethane foam.General refrigerator polyurethane foam
Raw material, due to poor fluidity, tends not to a single material feeding of rifle success, needs several times when producing the fresh sales counter of ultra-large type
Material feeding, considerably increases the production time.And fresh sales counter internal structure is complicated, dividing plate many so that within sales counter one
A little keeping warmth spaces are narrower, if the material flow of polyurethane foam is poor, are just difficult to be sufficient filling with these narrower keeping warmth spaces,
Thus have impact on final heat insulation effect.
Chinese patent literature CN105038182A discloses a kind of combined polyether, and this combined polyether includes the following raw material group
Point：30-50 part polyether polyol YD1050,30-50 part polyether polyol SA380,20-30 part polyether polyol SD7100,2-3
Part foam stabiliser, 2-3 part catalyst, 1.5-2.5 part water and 17-19 part foaming agent, the polyurethane being obtained with this combined polyether
Foam there is the poor defect of material flow, during insulation material as fresh sales counter cannot material feeding success, hold
Filling easily occurs insufficient.
Therefore, for the fresh sales counter with complex internal structure and ultra-large volume, research and develop a kind of good fluidity, can
The polyurethane foam that one time material feeding is with regard to success and filling effect is good has become this area technical problem urgently to be resolved hurrily.
Content of the invention
The technical problem to be solved in the present invention is to overcome existing polyurethane foam raw material producing large-scale fresh sell
Because poor fluidity cannot realize the defect of a single material feeding of rifle, filling effect difference during counter, there is provided a kind of combined polyether, poly- ammonia
Ester foam and its feedstock composition, preparation method and application.The polyurethane foam of the present invention employs the combined polyether of the present invention,
It has been obviously improved the mobility of combined polyether, be effectively improved the production efficiency of sales counter and the heat insulation effect of sales counter.
The present invention solves above-mentioned technical problem by the following technical programs.
One of technical scheme：
The invention provides a kind of combined polyether, described combined polyether includes the component of following weight portion：Polyether polyol A
35-55 part, polyether polyol B 20-40 part, PEPA C 10-30 part, foam stabiliser 2-3 part, catalyst 3-5 part,
Foaming agent 12-14 part and water 2.0-2.3 part；
At described polyether polyol A is 25 DEG C, viscosity is 5000-6000mPa s, and degree of functionality is 4.5, and hydroxyl value is 400-
The polyether polyol of 440mgKOH/g；
At described polyether polyol B is 25 DEG C, viscosity is 6500-11500mPa s, and degree of functionality is 4, and hydroxyl value is 360-
The polyether polyol of 400mgKOH/g；
At described PEPA C is 25 DEG C, viscosity is 8000-13000mPa s, and degree of functionality is 2, and hydroxyl value is 160-
The PEPA of 180mgKOH/g；
Described catalyst is N, N- dimethyl cyclohexyl amine, first quaternary amine and N, the mixture of N- dimethyl-benzilamine；
Described foaming agent is Pentamethylene..
Wherein, the viscosity art technology of described polyether polyol A, described polyether polyol B and described PEPA C
Personnel understand to be dynamic viscosity according to ordinary skill knowledge.Described dynamic viscosity is typically recorded using rotating cylinder viscometer.
It is preferred that the number-average molecular weight of described polyether polyol A is 730.It is preferred that the moisture of described polyether polyol A
Below 0.1%, described percentage ratio is that the quality of water accounts for the percentage ratio of described polyether polyol A gross mass to content.More preferably, institute
State the polyether polyol that the trade mark that polyether polyol A is that Zibo Nuo Li Chemical Co., Ltd. produces is NL6010, this NL6010 gathers
The number-average molecular weight of ethoxylated polyhydric alcohol is 730.
It is preferred that the consumption of described polyether polyol A is 40-50 part.
It is preferred that the moisture of described polyether polyol B is below 0.1%, described percentage ratio accounts for institute for the quality of water
State the percentage ratio of polyether polyol B gross mass.More preferably, described polyether polyol B produces for Shanghai Dongda Chemical Co., Ltd.
The trade mark be SD7100 polyether polyol.
It is preferred that the consumption of described polyether polyol B is 25-35 part.
It is preferred that the moisture of described PEPA C is below 0.1%, described percentage ratio accounts for institute for the quality of water
State the percentage ratio of polyether polyol C gross mass.More preferably, described PEPA C is Shandong Inov New Material Co., Ltd.
The trade mark producing is the PEPA of PEB175.
It is preferred that the consumption of described PEPA C is 15-25 part.
Wherein, described foam stabiliser can be the conventional foam stabiliser in this area, preferably silicone foam stabilization
Agent, the silicone foam stabiliser being more preferably H-3212 for the trade mark that middle Shandong company of high Chemical Co., Ltd. produces.Preferably
Ground, the consumption of described foam stabiliser is 2-3 part.
Wherein, in described catalyst, N, N- dimethyl cyclohexyl amine, first quaternary amine and N, the mass ratio of N- dimethyl-benzilamine
Preferably 1:(1-3):(1-3), more preferably for 1:(1-2):(1-2).It is preferred that the consumption of described catalyst is 2.3-2.7
Part.
Wherein, the consumption of described foaming agent is preferably 12.5-13 part.
Wherein, described water is generally deionized water.The consumption of described water is preferably 2.1-2.2 part.
In the present invention, those skilled in the art know that described combined polyether may also include other components, as long as the group added
Divide the final performance not affecting combined polyether of the present invention.
In a preferred embodiment of the present invention, described combined polyether includes the component of following weight portion：Polyether polyol A
40-50 part, polyether polyol B 25-35 part, PEPA C 15-25 part, foam stabiliser 2-3 part, catalyst 2.3-2.7
Part, foaming agent 12.5-13 part and water 2.1-2.2 part；At described polyether polyol A is 25 DEG C, viscosity is 5000-6000mPa s,
Degree of functionality is 4.5, and hydroxyl value is the polyether polyol of 400-440mgKOH/g；At described polyether polyol B is 25 DEG C, viscosity is
6500-11500mPa s, degree of functionality is 4, and hydroxyl value is the polyether polyol of 360-400mgKOH/g；Described PEPA C is
At 25 DEG C, viscosity is 8000-13000mPa s, and degree of functionality is 2, and hydroxyl value is the PEPA of 160-180mgKOH/g；Described
Catalyst is N, N- dimethyl cyclohexyl amine, first quaternary amine and N, the mixture of N- dimethyl-benzilamine；Described foaming agent is ring penta
Alkane.
In another preferred embodiment of the present invention, described combined polyether is grouped into by the group of following weight portion：Polyether polyols
Alcohol A 35-55 part, polyether polyol B 20-40 part, PEPA C 10-30 part, foam stabiliser 2-3 part, catalyst 3-5
Part, foaming agent 12-14 part and water 2.0-2.3 part；At described polyether polyol A is 25 DEG C, viscosity is 5000-6000mPa s, official
Energy degree is 4.5, and hydroxyl value is the polyether polyol of 400-440mgKOH/g；At described polyether polyol B is 25 DEG C, viscosity is 6500-
11500mPa s, degree of functionality is 4, and hydroxyl value is the polyether polyol of 360-400mgKOH/g；Described PEPA C is 25 DEG C
Lower viscosity is 8000-13000mPa s, and degree of functionality is 2, and hydroxyl value is the PEPA of 160-180mgKOH/g；Described catalysis
Agent is N, N- dimethyl cyclohexyl amine, first quaternary amine and N, the mixture of N- dimethyl-benzilamine；Described foaming agent is Pentamethylene..
In another embodiment of the present invention, described combined polyether is grouped into by the group of following weight portion：Polyether polyols
Alcohol A 40-50 part, polyether polyol B 25-35 part, PEPA C 15-25 part, foam stabiliser 2-3 part, catalyst
2.3-2.7 part, foaming agent 12.5-13 part and water 2.1-2.2 part；At described polyether polyol A is 25 DEG C, viscosity is 5000-
6000mPa s, degree of functionality is 4.5, and hydroxyl value is the polyether polyol of 400-440mgKOH/g；Described polyether polyol B is 25 DEG C
Lower viscosity is 6500-11500mPa s, and degree of functionality is 4, and hydroxyl value is the polyether polyol of 360-400mgKOH/g；Described polyester
At polyhydric alcohol C is 25 DEG C, viscosity is 8000-13000mPa s, and degree of functionality is 2, and hydroxyl value is that the polyester of 160-180mgKOH/g is many
First alcohol；Described catalyst is N, N- dimethyl cyclohexyl amine, first quaternary amine and N, the mixture of N- dimethyl-benzilamine；Described foaming
Agent is Pentamethylene..
The two of technical scheme：
Present invention also offers the preparation method of combinations thereof polyethers.Described preparation method can be according to this area conventional method
Carry out, by each component mixing of described combined polyether, you can.
Wherein, described mixing is typically carried out in having fool proof stainless steel, such as mixing kettle.It is preferred that institute
Stating stainless steel is rustless steel mixing kettle.
Wherein, described mixing can be carried out according to this area routine operation, typically carries out under agitation.Art technology
Personnel all know described in be mixed into mix uniform to each component.It is preferred that the time of described mixing is 0.5～1 hour, for example
0.75 hour.
The three of technical scheme：
Present invention also offers a kind of feedstock composition of polyurethane foam, described feedstock composition includes following component：
Described combined polyether and isocyanates；The mass ratio of described combined polyether and described isocyanates is 1:1.1-1:1.3.
Wherein, described isocyanates can be isocyanates commonly used in the art, preferably polymeric diphenylmethane
Diisocyanate (abbreviation polymeric MDI).Described polymeric diphenylmethane diisocyanate those skilled in the art all know for pure
Methyl diphenylene diisocyanate and the mixture of polyphenyl polymethylene polyisocyanates.It is preferred that described polymeric methylehe
Methane diisocyanate is the polymeric diphenylmethane diisocyanate of model PM200 that Yantai ten thousand China produces, in this PM200
The content of polymeric diphenylmethane diisocyanate is 51.3%, and described percentage ratio is the percentage ratio accounting for polymeric MDI gross mass.
Wherein, the mass ratio of described combined polyether and described isocyanates is preferably 1:1.15-1:1.25, more preferably for
1:1.2.
The four of technical scheme：
Present invention also offers a kind of preparation method of polyurethane foam, described preparation method comprises the steps：By institute
State combined polyether and the mixing of described isocyanates, foamed, you can.
Wherein, described mixing can be carried out according to this area routine operation.Those skilled in the art are mixed into described in all knowing
Mix uniform to each component.
Wherein, the method for described foaming and condition those skilled in the art can specifically select with common knowledge according to actual needs
Select.The polyurethane foam of different hardness for example to be prepared, those skilled in the art can according to conventional rigid polyurethane foam,
The foam process of semi-hard polyurethane foam or flexible polyurethane foams is selecting specific foaming method and condition.
It is preferred that described foaming is carried out in high pressure foaming machine.It is preferred that the temperature of described foaming is 20-25 DEG C, more preferably
Ground is 22 DEG C.
The five of technical scheme：
Present invention also offers the polyurethane foam being obtained by above-mentioned preparation method.
Wherein, described polyurethane foam is preferably hard polyurethane foams.
The six of technical scheme：
Present invention also offers the application in fresh sales counter as insulation material of above-mentioned polyurethane foam.
Wherein, described fresh sales counter is generally used for placing the fresh food such as meat, seafood, vegetable.
Wherein, when described polyurethane foam is applied in fresh sales counter as insulation material, those skilled in the art's root
All know how this uses according to general knowledge, the raw material components combined polyether of typically described polyurethane foam and isocyanates are before use
Do not mixed, but mix and use, during use, be injected into fresh selling goods by after described combined polyether and isocyanates mixing again
Foamed in keeping warmth space between the shell of cabinet and inner bag.
On the basis of meeting common sense in the field, above-mentioned each optimum condition, can combination in any, obtain final product each preferable reality of the present invention
Example.
Agents useful for same of the present invention and raw material are all commercially available.
The positive effect of the present invention is：
(1) the combined polyether good fluidity of the present invention, the polyurethane foam being obtained by it is in the guarantor as fresh sales counter
Adiabator can realize one-gun feeding technique when using, and can be sufficient filling with, and drastically increases production efficiency.
(2) polyurethane foam product of the present invention is compared more conventional polyphenyl foam product and is had relatively low heat conductivity.
Specific embodiment
Further illustrate the present invention below by the mode of embodiment, but therefore do not limit the present invention to described reality
Apply among a scope.The experimental technique of unreceipted actual conditions in the following example, conventionally and condition, or according to business
Product description selects.
In following embodiments, polyether polyol A used is the polyether polyol that Zibo Nuo Li Chemical Co., Ltd. produces
NL6010, its number-average molecular weight is 730, and the viscosity at 25 DEG C is 5000-6000mPa s, and degree of functionality is 4.5, and hydroxyl value is
400-440mgKOH/g, moisture is in below 0.1wt%.
Polyether polyol SD7100 that polyether polyol B used produces for Shanghai Dongda Chemical Co., Ltd., it is at 25 DEG C
Lower viscosity be 6500-11500mPa s, degree of functionality be 4, hydroxyl value be 360-400mgKOH/g, moisture 0.1wt% with
Under.
The PEPA PEB175 that described PEPA C produces for Shandong Inov New Material Co., Ltd., its
Viscosity at 25 DEG C is 8000-13000mPa s, and degree of functionality is 2, and hydroxyl value is 160-180mgKOH/g, and moisture exists
Below 0.1wt%.
Foam stabiliser used is the silicone foam stabiliser H-3212 that middle Shandong person of outstanding talent Chemical Co., Ltd. produces.
Foaming agent used is Pentamethylene..
Isocyanates used are the polymeric MDI of model PM200 that Yantai ten thousand China produces.
Other raw materials and reagent are all commercially available.
Embodiment 1
I, a kind of combined polyether, it is grouped into by following group：40 parts of polyether polyol A, 35 parts of polyether polyol B, poly-
25 parts of ester polyol C, 2 parts of foam stabiliser, 2.7 parts of catalyst, 13 parts of foaming agent and 2.1 parts of deionized water；Wherein, it is catalyzed
Agent is by N, N- dimethyl cyclohexyl amine, first quaternary amine and N, N- dimethyl-benzilamine in mass ratio 0.5:1:The mixing of 1.2 compositions
Thing.
The preparation method of this combined polyether is as follows：According to proportioning, each component is stirred in rustless steel mixing kettle mixing all
Even, incorporation time is 45min.
II, a kind of polyurethane foam, its feedstock composition is by 119.8 parts of combinations thereof polyethers and 143.8 parts of isocyanates
Composition.
The preparation method of this polyurethane foam is as follows：According to proportioning, combined polyether and isocyanates mixing are then injected into
In mould, foam at 22 DEG C and obtain final product.
Embodiment 2
I, a kind of combined polyether, it is grouped into by following group：45 parts of polyether polyol A, 35 parts of polyether polyol B, poly-
20 parts of ester polyol C, 2.5 parts of foam stabiliser, 2.4 parts of catalyst, 12.5 parts of foaming agent and 2.15 parts of deionized water；Wherein,
Catalyst is by N, N- dimethyl cyclohexyl amine, first quaternary amine and N, N- dimethyl-benzilamine in mass ratio 0.6:0.8:1 composition mixed
Compound.
The preparation method of this combined polyether is as follows：According to proportioning, each component is stirred in rustless steel mixing kettle mixing all
Even, incorporation time is 45min.
II, a kind of polyurethane foam, its feedstock composition is by 119.55 parts of combinations thereof polyethers and 149.4 parts of isocyanates
Composition.
The preparation method of this polyurethane foam is as follows：According to proportioning, combined polyether and isocyanates mixing are then injected into
In mould, foam at 22 DEG C and obtain final product.
Embodiment 3
I, a kind of combined polyether, it is grouped into by following group：50 parts of polyether polyol A, 25 parts of polyether polyol B, poly-
25 parts of ester polyol C, 3 parts of foam stabiliser, 2.3 parts of catalyst, 13 parts of foaming agent and 2.2 parts of deionized water；Wherein, it is catalyzed
Agent is by N, N- dimethyl cyclohexyl amine, first quaternary amine and N, N- dimethyl-benzilamine in mass ratio 0.5:0.8:The mixing of 1 composition
Thing.
The preparation method of this combined polyether is as follows：According to proportioning, each component is stirred in rustless steel mixing kettle mixing all
Even, incorporation time is 45min.
II, a kind of polyurethane foam, its feedstock composition is by 120.5 parts of combinations thereof polyethers and 138.6 parts of isocyanates
Composition.
The preparation method of this polyurethane foam is as follows：According to proportioning, combined polyether and isocyanates mixing are then injected into
In mould, foam at 22 DEG C and obtain final product.
Embodiment 4
I, a kind of combined polyether, it is grouped into by following group：50 parts of polyether polyol A, 35 parts of polyether polyol B, poly-
15 parts of ester polyol C, 2.5 parts of foam stabiliser, 2.4 parts of catalyst, 12.5 parts of foaming agent and 2.15 parts of deionized water；Wherein,
Catalyst is by N, N- dimethyl cyclohexyl amine, first quaternary amine and N, N- dimethyl-benzilamine in mass ratio 0.6:0.6:1.2 compositions
Mixture.
The preparation method of this combined polyether is as follows：According to proportioning, each component is stirred in rustless steel mixing kettle mixing all
Even, incorporation time is 45min.
II, a kind of polyurethane foam, its feedstock composition is by 119.55 parts of combinations thereof polyethers and 143.5 parts of isocyanates
Composition.
The preparation method of this polyurethane foam is as follows：According to proportioning, combined polyether and isocyanates mixing are then injected into
In mould, foam at 22 DEG C and obtain final product.
Embodiment 5
I, a kind of combined polyether, it is grouped into by following group：35 parts of polyether polyol A, 40 parts of polyether polyol B, poly-
25 parts of ester polyol C, 2.5 parts of foam stabiliser, 3 parts of catalyst, 12 parts of foaming agent and 2.0 parts of deionized water；Wherein, it is catalyzed
Agent is by N, N- dimethyl cyclohexyl amine, first quaternary amine and N, N- dimethyl-benzilamine in mass ratio 1:1:The mixture of 1 composition.
The preparation method of this combined polyether is as follows：According to proportioning, each component is stirred in rustless steel mixing kettle mixing all
Even, incorporation time is 30min.
II, a kind of polyurethane foam, its feedstock composition is by 119.5 parts of combinations thereof polyethers and 155.35 parts of isocyanates
Composition.
The preparation method of this polyurethane foam is as follows：According to proportioning, combined polyether and isocyanates mixing are then injected into
In mould, foam at 20 DEG C and obtain final product.
Embodiment 6
I, a kind of combined polyether, it is grouped into by following group：55 parts of polyether polyol A, 35 parts of polyether polyol B, poly-
10 parts of ester polyol C, 2.5 parts of foam stabiliser, 5 parts of catalyst, 14 parts of foaming agent and 2.3 parts of deionized water；Wherein, it is catalyzed
Agent is by N, N- dimethyl cyclohexyl amine, first quaternary amine and N, N- dimethyl-benzilamine in mass ratio 1:3:The mixture of 3 compositions.
The preparation method of this combined polyether is as follows：According to proportioning, each component is stirred in rustless steel mixing kettle mixing all
Even, incorporation time is 60min.
II, a kind of polyurethane foam, its feedstock composition is by 123.8 parts of combinations thereof polyethers and 136.18 parts of isocyanates
Composition.
The preparation method of this polyurethane foam is as follows：According to proportioning, combined polyether and isocyanates mixing are then injected into
In mould, foam at 25 DEG C and obtain final product.
Embodiment 7
I, a kind of combined polyether, it is grouped into by following group：50 parts of polyether polyol A, 20 parts of polyether polyol B, poly-
30 parts of ester polyol C, 2 parts of foam stabiliser, 2.7 parts of catalyst, 13 parts of foaming agent and 2.1 parts of deionized water；Wherein, it is catalyzed
Agent is by N, N- dimethyl cyclohexyl amine, first quaternary amine and N, N- dimethyl-benzilamine in mass ratio 0.5:1:The mixing of 1.2 compositions
Thing.
The preparation method of this combined polyether is as follows：According to proportioning, each component is stirred in rustless steel mixing kettle mixing all
Even, incorporation time is 45min.
II, a kind of polyurethane foam, its feedstock composition is by 119.8 parts of combinations thereof polyethers and 143.8 parts of isocyanates
Composition.
The preparation method of this polyurethane foam is as follows：According to proportioning, combined polyether and isocyanates mixing are then injected into
In mould, foam at 22 DEG C and obtain final product.
Comparative example 1
I, a kind of combined polyether, it is grouped into by following group：40 parts of polyether polyol A, 35 parts of polyether polyol B, poly-
25 parts of ester polyol C, 2 parts of foam stabiliser, 2.7 parts of catalyst, 13 parts of foaming agent and 2.1 parts of deionized water；Wherein, it is catalyzed
Agent is by N, N, N', N ", N "-five methyl diethylentriamine, N, N- dimethyl cyclohexyl amine and 1,2,3,5- tri- (dimethylamino third
Base)-Hexahydrotriazine in mass ratio 0.5:1:The mixture of 1.2 compositions.
The preparation method of this combined polyether is as follows：According to proportioning, each component is stirred in rustless steel mixing kettle mixing all
Even, incorporation time is 45min.
II, a kind of polyurethane foam, its feedstock composition is by 119.8 parts of combinations thereof polyethers and 143.8 parts of isocyanates
Composition.
The preparation method of this polyurethane foam is as follows：According to proportioning, combined polyether and isocyanates mixing are then injected into
In mould, foam at 22 DEG C and obtain final product.
Comparative example 2
I, a kind of combined polyether, it is grouped into by following group：40 parts of polyether polyol A, 35 parts of polyether polyol B, poly-
25 parts of ethoxylated polyhydric alcohol D, 2 parts of foam stabiliser, 2.7 parts of catalyst, 13 parts of foaming agent and 2.1 parts of deionized water；Wherein, polyethers
Polyhydric alcohol A is polyether polyol NL6010 that Zibo Nuo Li Chemical Co., Ltd. produces, and polyether polyol B is that Shanghai east is chemical greatly
Polyether polyol SD7100 that company limited produces, polyether polyol D produces for Shandong Lanxing Dongda Chemical Co., Ltd
Polyether polyol SA380；Catalyst is that N- dimethyl-benzilamine presses quality by N, N- dimethyl cyclohexyl amine, first quaternary amine and N
Ratio 0.5:1:The mixture of 1.2 compositions.
The preparation method of this combined polyether is as follows：According to proportioning, each component is stirred in rustless steel mixing kettle mixing all
Even, incorporation time is 45min.
II, a kind of polyurethane foam, its feedstock composition is by 119.8 parts of combinations thereof polyethers and 143.8 parts of isocyanates
Composition.
The preparation method of this polyurethane foam is as follows：According to proportioning, combined polyether and isocyanates mixing are then injected into
In mould, foam at 22 DEG C and obtain final product.
Effect example 1
The core density of polyurethane foam, compressive strength, Low-Temperature Size stability and heat conduction that testing example 1-4 is obtained
Coefficient, and from commercially available polyphenyl foam as a control group.Concrete test result is as shown in the table.
As seen from the above table, the polyurethane foam of the embodiment of the present invention 1～4 gained has higher compressive strength, preferably
Low-Temperature Size stability and lower heat conductivity.The effect of embodiment 5～7 is suitable with embodiment 1～4.
Effect example 2
The polyurethane foam of embodiment 1, comparative example 1 and comparative example 2 is applied in vegetable sales counter as insulation material,
Specifically used method is to mix the raw material components combined polyether of polyurethane foam and isocyanates to use, and is then injected into vegetable
Foamed at 22～24 DEG C in keeping warmth space between the shell of sales counter and inner bag.The polyurethane foam of acetonideexample 1
Foam raw material can realize a material feeding, and can be sufficient filling with the stenosis of keeping warmth space, and comparative example 1,2 need to be noted through 2～3 times
Material, and fail filling fully, still leave space at the slit of keeping warmth space.
Claims (10)
1. a kind of combined polyether is it is characterised in that described combined polyether includes the component of following weight portion：Polyether polyol A
35-55 part, polyether polyol B 20-40 part, PEPA C 10-30 part, foam stabiliser 2-3 part, catalyst 3-5 part,
Foaming agent 12-14 part and water 2.0-2.3 part；
At described polyether polyol A is 25 DEG C, viscosity is 5000-6000mPa s, and degree of functionality is 4.5, and hydroxyl value is 400-
The polyether polyol of 440mgKOH/g；
At described polyether polyol B is 25 DEG C, viscosity is 6500-11500mPa s, and degree of functionality is 4, and hydroxyl value is 360-
The polyether polyol of 400mgKOH/g；
At described PEPA C is 25 DEG C, viscosity is 8000-13000mPa s, and degree of functionality is 2, and hydroxyl value is 160-
The PEPA of 180mgKOH/g；
Described catalyst is N, N- dimethyl cyclohexyl amine, first quaternary amine and N, the mixture of N- dimethyl-benzilamine；
Described foaming agent is Pentamethylene..
2. combined polyether as claimed in claim 1 it is characterised in that described polyether polyol A moisture 0.1% with
Under, described percentage ratio is that the quality of water accounts for the percentage ratio of described polyether polyol A gross mass；
And/or, below 0.1%, described percentage ratio is that the quality of water accounts for described polyethers to the moisture of described polyether polyol B
The percentage ratio of polyhydric alcohol B gross mass；
And/or, below 0.1%, described percentage ratio is that the quality of water accounts for described polyethers to the moisture of described PEPA C
The percentage ratio of polyhydric alcohol C gross mass；
And/or, described foam stabiliser is silicone foam stabiliser；
And/or, in described catalyst, N, N- dimethyl cyclohexyl amine, first quaternary amine and N, the mass ratio of N- dimethyl-benzilamine is 1:
(1-3):(1-3).
3. combined polyether as claimed in claim 1 or 2 is it is characterised in that described polyether polyol A is polyether polyol
NL6010；
And/or, described polyether polyol B is polyether polyol SD7100；
And/or, described PEPA C is PEPA PEB175；
And/or, described foam stabiliser is foam stabiliser H-3212；
And/or, in described catalyst, N, N- dimethyl cyclohexyl amine, first quaternary amine and N, the mass ratio of N- dimethyl-benzilamine is 1:
(1-2):(1-2).
4. combined polyether as claimed in claim 1 is it is characterised in that the consumption of described polyether polyol A is 40-50 part；
And/or, the consumption of described polyether polyol B is 25-35 part；
And/or, the consumption of described PEPA C is 15-25 part；
And/or, the consumption of described foam stabiliser is 2-3 part；
And/or, the consumption of described catalyst is 2.3-2.7 part；
And/or, the consumption of described foaming agent is 12.5-13 part；
And/or, the consumption of described water is 2.1-2.2 part.
5. a kind of preparation method of combined polyether as described in any one as claim 1-4 is it is characterised in that described preparation method is
Each component mixing by described combined polyether, you can；The time of described mixing is preferably 0.5-1 hour.
6. a kind of feedstock composition of polyurethane foam is it is characterised in that described feedstock composition includes following component：Combination is poly-
Ether and isocyanates；Described combined polyether is the combined polyether as described in any one of claim 1-4；Described combined polyether and institute
The mass ratio stating isocyanates is 1:1.1-1:1.3, preferably 1:1.15-1:1.25.
7. feedstock composition as claimed in claim 6 is it is characterised in that described isocyanates are that polymeric diphenylmethane two is different
Cyanate, preferably polymeric diphenylmethane diisocyanate PM200.
8. a kind of preparation method of polyurethane foam is it is characterised in that described preparation method comprises the steps：To want as right
Ask the combined polyether described in 6 or 7 and the mixing of described isocyanates, foamed, you can；The temperature of described foaming is preferably
For 20-25 DEG C, more preferably for 22 DEG C.
9. the polyurethane foam that a kind of preparation method as claimed in claim 8 is obtained.
10. a kind of polyurethane foam as claimed in claim 9 application in fresh sales counter as insulation material.
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| CN108084388A (en) * | 2017-12-13 | 2018-05-29 | 上海东大聚氨酯有限公司 | A kind of electric heater combined polyether, polyurethane and preparation method |
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| 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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