CN110372838A - A kind of combined polyether glycol, polyurethane foam and preparation method thereof - Google Patents
A kind of combined polyether glycol, polyurethane foam and preparation method thereof Download PDFInfo
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- CN110372838A CN110372838A CN201910636549.2A CN201910636549A CN110372838A CN 110372838 A CN110372838 A CN 110372838A CN 201910636549 A CN201910636549 A CN 201910636549A CN 110372838 A CN110372838 A CN 110372838A
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- polyurethane foam
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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
- C08J9/143—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
- 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
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
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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 present invention relates to a kind of combined polyether glycols, polyurethane foam and preparation method thereof.The combined polyether glycol includes the composition of following parts by weight: 100 parts of polyether polyol；4~6 parts of catalyst；2~3 parts of foam stabiliser；20~25 parts of foaming agent；0.8~1.5 part of water；Wherein, the polyether polyol includes the combination of two or more in EP330N, EP3600, YD6205, SD8238, NJ-410HN or SD7100.Compared with prior art, the present invention cooperates effective catalyst, foam stabiliser and foaming agent, has the non-shrinking characteristic of low-temp foaming, especially 0 DEG C or so foaming, so that it is guaranteed that the thermal insulation property of door-window section bar product by adjusting the type of polyether polyol.
Description
Technical field
The present invention relates to polyurethane fields, and in particular to a kind of combined polyether glycol, polyurethane foam and its preparation side
Method.
Background technique
In modern architecture, door and window is most commonly seen one of component, and wherein aluminum alloy doors and windows are because of its production, installation side
Just, the advantages such as indeformable, which are used for a long time, already becomes consumption mainstream, but aluminium alloy has more preferably thermally conductive effect relative to timber etc.
Fruit, this will lead to the increase of energy consumption, and as country is higher and higher to energy-saving requirement, the energy conservation of door and window causes numerous scholars
Concern.In order to solve the problems, such as door and window energy-saving heat preserving, rock wool, polystyrene, rigid polyurethane can be filled in the profile of door and window
The materials such as matter foam.It is well known that polyurethane is to be currently known the optimal material of thermal insulation property in organic material, so also becoming
The first choice of door and window filling.The Alminum Project heat insulation section in China mainly has penetrating bar type and two kinds of pouring type, penetrating bar type profile city
Field occupation rate is larger, is cavity among this profile, and filled polyurethane rigid foam material can greatly promote its heat-proof quality.
Hard polyurethane foam needs certain environment temperature in process of production, also wants to the temperature of door-window section bar
It asks, but each producer is produced at ambient temperature in actual production process, it is difficult to ensure that technique requires, especially works as ring
For border temperature at 0 DEG C or so, polyurethane rigid foam material contraction problem is just especially prominent, serious to damage door and window thermal insulation property.
It can be at 10 DEG C hereinafter, especially being foamed and non-shrinking polyurethane under the conditions of 0 DEG C for this purpose, developing one kind
Rigid foam material is of great significance.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide low-temp foaming type bridge-cut-off aluminums
Combined polyether glycol is used in door and window filling.
The purpose of the application, which also resides in, provides one kind polyurethane foam as made of the foaming of said combination polyether polyol.
The purpose of the application, which also resides in, provides the preparation method of above-mentioned polyurethane foam.
In order to realize that the purpose of the present invention, the application provide following technical scheme.
In the first aspect, the application provides a kind of combined polyether glycol, which is characterized in that the combined polyether is polynary
Alcohol includes the composition of following parts by weight:
Wherein, the polyether polyol includes EP330N, EP3600, YD6205, SD8238, NJ-410HN or SD7100
In combination of two or more.
In a kind of embodiment of first aspect, the catalyst includes POLYACAT 5, POLYACAT 8, Dabco
One of BX405, K15, POLYCAT 41, DABCO T or a variety of.
In a kind of embodiment of first aspect, the foam stabiliser includes one of B8545 or S-198 or two
Kind.
In a kind of embodiment of first aspect, the foaming agent is blowing agent H CFC-141b.
In second aspect, the application provides a kind of low-temp foaming type bridge cut-off aluminium door and window filling polyurethane foam, described
Polyurethane foam after the pure and mild isocyanates foaming of said combination polyether polyols by being made.
In a kind of embodiment of second aspect, the isocyanates includes polyphenyl polymethylene polyisocyanates.
In a kind of embodiment of second aspect, the mass ratio of the combined polyether glycol and isocyanates is 0.5
~1.5:1, preferably 1:1.
In a third aspect, the application provides a kind of preparation of low-temp foaming type bridge cut-off aluminium door and window filling polyurethane foam
Method, the preparation method comprises the following steps: the combined polyether glycol and isocyanates are mixed in low-pressure blowing machine
It closes；Then it is cast in paper slip foaming tank and foams, obtain the polyurethane foam.
In a kind of embodiment of the third aspect, the combined polyether glycol and isocyanates are in low-pressure blowing machine
Mixed total flow is 10~40g/s, preferably 30g/s.
In a kind of embodiment of the third aspect, mixing temperature is -5~35 DEG C in the low-pressure blowing machine.
In a kind of embodiment of the third aspect, the temperature of the foaming is -5~35 DEG C.
Compared with prior art, the beneficial effects of the present invention are: the type by adjusting polyether polyol, cooperation are effective
Catalyst, foam stabiliser and foaming agent, have the non-shrinking characteristic of low-temp foaming, especially 0 DEG C or so foaming, thus really
Protect the thermal insulation property of door-window section bar product.
Specific embodiment
Unless otherwise defined, the technical term or scientific term used in the present specification and claims is should be
The ordinary meaning that personage in the technical field of the invention with general technical ability is understood.That enumerates herein is all from most
Low value to the numerical value between peak, refer to when between minimum and peak differ two units more than when, minimum with most
All numerical value obtained using a unit as increment between high level.
A specific embodiment of the invention explained below, it should be pointed out that in the specific descriptions of these embodiments
In the process, in order to carry out brief and concise description, this specification can not all features to actual embodiment make in detail
Most description.Without departing from the spirit and scope of the present invention, those skilled in the art can be to implementation of the invention
Mode is modified and is replaced, and gained embodiment is also within protection scope of the present invention.
Traditional polyurethane rigid foam material is produced when environment temperature is lower, and especially at 0 DEG C or so, obtained product is shunk
Performance is poor, serious to damage door and window thermal insulation property.The application's is designed to provide a kind of low-temp foaming type bridge cut-off aluminium door and window filling
With combined polyether glycol, the combined polyether glycol includes the composition of following parts by weight:
Wherein, the polyether polyol includes EP330N, EP3600, YD6205, SD8238, NJ-410HN or SD7100
In combination of two or more.
In a specific embodiment, the polyether polyol YD6205 is preferably purchased from Hebei Yadong Chemical Group and has
Limit company, hydroxyl value 355-395mgKOH/g, viscosity are 2000-3000mpa.s/25 DEG C.
In a specific embodiment, polyether polyol EP330N, EP3600 is preferably purchased from Shandong blue star
Dong great Chemical Co., Ltd., wherein EP330N hydroxyl value is 32-36mgKOH/g, viscosity is 800-1000mpa.s/25 DEG C,
EP3600 hydroxyl value is 26-30mgKOH/g, viscosity is 1000-1600mpa.s/25 DEG C.
In a specific embodiment, the polyether polyol NJ-410HN is preferably purchased from Jurong Ningwu chemical industry and has
Limit company, hydroxyl value 310-370mgKOH/g, viscosity≤12000mpa.s/25 DEG C.
In a specific embodiment, it is big to be preferably purchased from Shanghai east for polyether polyol SD7100, SD8238
Chemical Co., Ltd., wherein SD7100 hydroxyl value is 360-400mgKOH/g, viscosity is 6500-11500mpa.s/25 DEG C, SD8238
Hydroxyl value is 385-405mgKOH/g, viscosity is 6000-10000mpa.s/25 DEG C.
In a specific embodiment, the catalyst include POLYACAT 5, POLYACAT 8, Dabco BX405,
One of K15, POLYCAT 41, DABCO T or a variety of, above-mentioned catalyst, which is purchased from gas chemical products (China) investment, to be had
Limit company.
In a specific embodiment, the foam stabiliser includes one or both of B8545 or S-198,
In, B8545 is purchased from win wound Degussa (China) Co., Ltd, and S-198 is purchased from Shanghai Mai Hao Chemical Industry Science Co., Ltd.
In a specific embodiment, the foaming agent is blowing agent H CFC-141b, is purchased from Zhejiang three and beautifies work share
Co., Ltd.
In a specific embodiment, the water is preferably deionized water.
In second aspect, the application also provides a kind of low-temp foaming type bridge cut-off aluminium door and window filling polyurethane foam, institute
Polyurethane foam is stated by being made after the pure and mild isocyanates foaming of said combination polyether polyols.
In a kind of specific embodiment of second aspect, the isocyanates can be isocyanide commonly used in the art
Acid esters, preferably polyphenyl polymethylene polyisocyanates (abbreviation PAPI), are purchased from Bayer A.G.
In a kind of specific embodiment of second aspect, the mass ratio of the combined polyether glycol and isocyanates is
0.5~1.5:1, preferably 1:1.
In a third aspect, the application also provides a kind of preparation method of door-window section bar polyurethane foam comprising with
Lower step: the combined polyether glycol is mixed with PAPI by the flow of 20~40g/s using low-pressure blowing machine, then
It is cast in the cavity for piercing into door-window section bar in paper slip foaming tank, the door-window section bar of hard polyurethane foam filling can be obtained.
In a kind of specific embodiment of the third aspect, the mixed method and condition of the combined polyether are that this field is normal
The mixing temperature of the method and condition of rule, the low-pressure blowing machine is environment temperature, and special is 0 DEG C or so, and this field is rare.
In a kind of specific embodiment of the third aspect, the mixed operation is preferably with low-pressure blowing machine, stream
Measure 30g/s.
In a kind of specific embodiment of the third aspect, the method and condition of the foaming is the method for this field routine
And condition, usually free foaming forms at room temperature, and special is 0 DEG C or so.
Embodiment
To elaborate below to the embodiment of the present invention, the present embodiment under the premise of the technical scheme of the present invention into
Row is implemented, and the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following realities
Apply example.
Embodiment 1
The preparation method of combined polyether glycol:
Polyether polyol EP3600 (5 parts), NJ-410HN (50 parts), SD8238 (45 parts) are placed in reaction kettle, successively
Be added catalyst POLYACAT 5 (1 part), POLYACAT 8 (1 part), POLYCAT 41 (2 parts), silicone oil B8545 (3 parts), go from
Sub- water (0.8 part), foaming agent (25 parts) stir evenly to obtain the final product.
It takes said combination polyether polyol and PAPI to carry out material feeding using low-pressure blowing machine with the flow of 30g/s, and combines
The mass ratio of polyether polyol and PAPI are 1:1, respectively up to door-window section bar after foaming under 0 DEG C and room temperature (25 DEG C).
Embodiment 2
The preparation method of combined polyether glycol:
By polyether polyol SD7100 (40 parts), SD8238 (60 parts) is placed in reaction kettle, sequentially adds catalyst DABCO
T (1 part), K15 (3 parts), silicone oil B8545 (2 parts), S198 (1 part), deionized water (1 part), foaming agent (21 parts) stir evenly i.e.
?；
It takes said combination polyether polyol and PAPI to carry out material feeding using low-pressure blowing machine with the flow of 30g/s, and combines
The mass ratio of polyether polyol and PAPI are 1:1, respectively up to door-window section bar after foaming under 0 DEG C and room temperature (30 DEG C).
Embodiment 3
The preparation method of combined polyether glycol:
By polyether polyol EP330N (10 parts), YD6205 (60 parts), SD7100 (30 parts) are placed in reaction kettle, successively plus
Enter catalyst POLYACAT 5 (0.5 part), Dabco BX405 (1 part), K15 (3 parts), silicone oil S198 (1.5 parts), deionized water
(1.5 parts), foaming agent (20 parts) stir evenly to obtain the final product；
It takes said combination polyether polyol and PAPI to carry out material feeding using low-pressure blowing machine with the flow of 30g/s, and combines
The mass ratio of polyether polyol and PAPI are 1:2, respectively up to door-window section bar after foaming under 0 DEG C and room temperature (35 DEG C).
Embodiment 4
The preparation method of combined polyether glycol:
Polyether polyol EP330N (10 parts), SD8238 (60 parts), NJ410HN (30 parts) are placed in reaction kettle, successively
Catalyst POLYACAT 8 (2 parts), POLYCAT 41 (4 parts), silicone oil S198 (1 part), B8545 (1 part), deionized water are added
(1.2 parts), foaming agent (23 parts) stir evenly to obtain the final product；
It takes said combination polyether polyol and PAPI to carry out material feeding using low-pressure blowing machine with the flow of 30g/s, and combines
The mass ratio of polyether polyol and PAPI be 1.5:1 respectively under 0 DEG C and room temperature (- 5 DEG C) after foaming to obtain the final product door-window section bar.
Measure of merit is carried out to the product that Examples 1 to 4 obtains, wherein dimensional stability uses GB/T26709-2011
Standard is tested for 24 hours under the conditions of -30 DEG C, and thermal coefficient uses GB/T 10295-1988 standard, uses thermal conductivity measuring apparatus
Test, compressive strength are used GB/T 8813-1988 standard, are tested using universal testing machine.The raw material of Examples 1 to 4 form and
Test result is as shown in table 1.
1 Examples 1 to 4 raw material of table composition and test result
Comparative example 1
The formula of common polyurethane rigid foam material is as follows, i.e. polyether polyol SD6207 (90 parts), polyester polyol
PS3152 (10 parts), water (2 parts), catalyst POLYACAT 5 (0.2 part), catalyst POLYACAT 8 (1.5 parts), catalyst
POLYCAT 41 (0.2 part), foam stabiliser H3201 (2 parts), blowing agent H CFC-141b (20 parts) are after mixing evenly to obtain the final product.
It takes said combination polyether polyol and PAPI to carry out material feeding using low-pressure blowing machine with the flow of 30g/s, and combines
The mass ratio of polyether polyol and PAPI are 1:1, foam at a temperature of 0 DEG C, 10 DEG C, 25 DEG C three kinds product is made respectively.
Comparative example 2
Using formula identical with embodiment 1 in 108774392 A of patent CN, i.e. 60 parts of polyester polyol, polyether polyols
10 parts of alcohol, 0.2 part of catalyst, 0.1 part of foam stabiliser, 4 parts of foaming agent, 14 parts of chain extender, 3 parts of fire retardant, is prevented 10 parts of water
2 parts of old agent, and using the preparation method of condition similar to Example 1, foam at a temperature of -5 DEG C, 0 DEG C, 25 DEG C three kinds system respectively
Obtain product.
By comparative example 1,2 product carry out measure of merit, wherein dimensional stability using GB/T26709-2011 mark
Standard is tested for 24 hours under the conditions of -30 DEG C, and thermal coefficient uses GB/T 10295-1988 standard, is surveyed using thermal conductivity measuring apparatus
Examination, compressive strength are used GB/T 8813-1988 standard, are tested using universal testing machine.The raw material of Examples 1 to 4 is formed and is surveyed
Test result is as shown in table 1.The results are shown in Table 2.
It will be seen that the urethane raw in Examples 1 to 4 is at 0 DEG C from the comparison of the testing result of Tables 1 and 2
Left and right remains to normally foam, and good stability of the dimension, has good heat insulation effect.
The above-mentioned description to embodiment is that this Shen can be understood and applied for the ease of those skilled in the art
Please.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without paying creative labor.Therefore, the application is not limited to implementation here
Example, those skilled in the art make according to herein disclosed content in the case where not departing from the application scope and spirit
It improves and modifies within all scope of the present application.
Claims (10)
1. a kind of combined polyether glycol, which is characterized in that the combined polyether glycol includes the composition of following parts by weight:
Wherein, the polyether polyol includes two in EP330N, EP3600, YD6205, SD8238, NJ-410HN or SD7100
Kind or multiple combinations.
2. combined polyether glycol as described in claim 1, which is characterized in that the catalyst include POLYACAT 5,
One of POLYACAT 8, Dabco BX405, K15, POLYCAT 41, DABCO T or a variety of.
3. combined polyether glycol as described in claim 1, which is characterized in that the foam stabiliser includes B8545 or S-
One or both of 198.
4. combined polyether glycol as described in claim 1, which is characterized in that the foaming agent is blowing agent H CFC-141b.
5. a kind of polyurethane foam, which is characterized in that the polyurethane foam is by any combined polyether of Claims 1 to 4
It is made after polyalcohol and isocyanates foaming.
6. polyurethane foam as claimed in claim 5, which is characterized in that the isocyanates includes that polyphenyl polymethylene is more
Isocyanates.
7. polyurethane foam as claimed in claim 5, which is characterized in that the matter of the combined polyether glycol and isocyanates
Amount is than being 0.5~1.5:1, preferably 1:1.
8. a kind of preparation method of the polyurethane foam as described in claim 5~7 is any, which is characterized in that the preparation method
The following steps are included:
The combined polyether glycol and isocyanates are mixed in low-pressure blowing machine；Then be cast in paper slip foaming tank into
Row foaming, obtains the polyurethane foam.
9. the preparation method of polyurethane foam as claimed in claim 8, which is characterized in that the combined polyether glycol and different
The total flow that cyanate mixes in low-pressure blowing machine is 10~40g/s, preferably 30g/s.
10. the preparation method of polyurethane foam as claimed in claim 8, which is characterized in that mixing in the low-pressure blowing machine
Temperature is -5~35 DEG C；
The temperature of the foaming is -5~35 DEG C.
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| CN113024766A (en) * | 2019-12-24 | 2021-06-25 | 比亚迪股份有限公司 | Polyurethane composition and polyurethane foam |
| CN113402696A (en) * | 2020-12-28 | 2021-09-17 | 上海东大聚氨酯有限公司 | High-flame-retardance low-temperature foaming type door and window strip penetrating foaming material, polyurethane foam and preparation method of polyurethane foam |
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| CN113402696A (en) * | 2020-12-28 | 2021-09-17 | 上海东大聚氨酯有限公司 | High-flame-retardance low-temperature foaming type door and window strip penetrating foaming material, polyurethane foam and preparation method of polyurethane foam |
Also Published As
| Publication number | Publication date |
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| CN110372838B (en) | 2022-03-01 |
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