CN112812354A - Polyurethane foaming agent - Google Patents
Polyurethane foaming agent Download PDFInfo
- Publication number
- CN112812354A CN112812354A CN202011623130.2A CN202011623130A CN112812354A CN 112812354 A CN112812354 A CN 112812354A CN 202011623130 A CN202011623130 A CN 202011623130A CN 112812354 A CN112812354 A CN 112812354A
- Authority
- CN
- China
- Prior art keywords
- foaming agent
- parts
- polyurethane
- foaming
- amolea
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004088 foaming agent Substances 0.000 title claims abstract description 112
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 41
- 239000004814 polyurethane Substances 0.000 title claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 78
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims description 35
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 claims description 19
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 claims description 18
- 239000004604 Blowing Agent Substances 0.000 claims description 10
- 239000012948 isocyanate Substances 0.000 claims description 9
- 150000002513 isocyanates Chemical class 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- DALFCXLZHYUQSU-UHFFFAOYSA-N cyclopentane 2-methylbutane Chemical group CCC(C)C.C1CCCC1 DALFCXLZHYUQSU-UHFFFAOYSA-N 0.000 claims description 3
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 7
- 239000012774 insulation material Substances 0.000 abstract description 3
- 238000005187 foaming Methods 0.000 description 30
- 229920005830 Polyurethane Foam Polymers 0.000 description 17
- 239000011496 polyurethane foam Substances 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 9
- 238000004321 preservation Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 125000001153 fluoro group Chemical group F* 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- LDTMPQQAWUMPKS-OWOJBTEDSA-N (e)-1-chloro-3,3,3-trifluoroprop-1-ene Chemical compound FC(F)(F)\C=C\Cl LDTMPQQAWUMPKS-OWOJBTEDSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- C08J9/06—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 chemical blowing agent
- C08J9/08—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 chemical blowing agent developing carbon dioxide
-
- 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
-
- 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
-
- 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
- C08J2203/20—Ternary blends of expanding agents
- C08J2203/204—Ternary blends of expanding agents of chemical foaming agent and physical blowing agents
-
- 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
Landscapes
- 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)
- General Chemical & Material Sciences (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a polyurethane foaming agent, and relates to the technical field of polyurethane foaming agents. The polyurethane foaming agent comprises a foaming agent A, wherein the foaming agent A is AMOLEA, is named as HCFO-1224yd, has a molecular formula of CF3CF ═ CHCl, and comprises the following components in parts by weight: 20-30 parts of foaming agent A, 100 parts of white material, 158 parts of black material 140-. Compared with the existing foaming agent, the AMOLEA foaming agent has a lower GWP value and is environment-friendly by adopting the AMOLEA foaming agent as the polyurethane foaming agent; meanwhile, the heat insulation material has higher heat insulation performance and higher physical strength.
Description
Technical Field
The invention belongs to the technical field of polyurethane foaming agents, and particularly relates to a polyurethane foaming agent.
Background
In the production and manufacturing process of refrigerators and freezers, polyurethane foaming plays roles of heat preservation and support, and is an indispensable important part in production. Energy conservation and environmental protection are the development directions of the manufacturing industry which are invariable, and polyurethane foaming is the first time to develop new energy-saving and environmental-protection technologies.
The mainstream foaming technology of the refrigerator body and the freezer body at present adopts 245fa + cyclopentane mixed as a foaming agent or LBA + cyclopentane mixed as the foaming agent, wherein the chemical name of 245fa is HFC-245fa, the molecular formula is CF3CH2CHF2, the gas phase thermal conductivity at 25 ℃ is 12.2mw/mk, and the global warming potential value (hereinafter all abbreviated as GWP) is 990; LBA is named as HCFO-1233zd, the molecular formula is CF3CH ═ CHCl, the gas phase thermal conductivity at 25 ℃ is 9.94mw/mk, and the LBA has a small GWP value which is only 1 because the LBA contains unsaturated double bonds and can be decomposed quickly in the atmosphere; the chemical name of cyclopentane is C5, the molecular formula is C5H10, the gas-phase thermal conductivity at 25 ℃ is 12.0mw/mk, and the GWP is 11.
For ease of comparison, and as shown in detail in FIG. 1, it can be seen that the GWP of 245fa is very high and is not an environmentally friendly blowing agent; the gas phase heat conductivity is high, the gas phase heat preservation performance is poor, and meanwhile, 3 carbon atoms in the molecular formula have 5 fluorine atoms which can improve the nucleation rate of the polyurethane foam in the foaming process and increase the number of bubbles in the polyurethane foam, so that the overall heat preservation performance is good (better than cyclopentane); the boiling point is lower, and the foam physical property is better (better than cyclopentane).
The LBA foaming agent has a very low GWP value, and belongs to an environment-friendly foaming agent; the gas phase heat conductivity is low, and simultaneously, 3 carbon atoms in the molecular formula have 5 fluorine atoms, so that the overall heat preservation performance is good (better than 245 fa); the boiling point is lower, and the foam physical property is better (better than cyclopentane and lower than 245 fa).
And the foaming agent AMOLEA is named as HCFO-1224yd, the molecular formula is CF3CF ═ CHCl, the gas-phase thermal conductivity at 25 ℃ is 9.1mw/mk, and the GWP is approximately equal to 0. The comparison shows that the AMOLEA foaming agent is environment-friendly, the gas-phase thermal conductivity is very low (better than LBA), and meanwhile, as 3 carbon atoms in the molecular formula have 4 fluorine atoms, the overall thermal insulation performance is good (better than LBA and 245 fa); the boiling point is lower, and the foam physical property is better (like 245fa, better than LBA).
Disclosure of Invention
The invention aims to provide a polyurethane foaming agent, which has a lower GWP value and is green and environment-friendly compared with the conventional foaming agent by adopting an AMOLEA foaming agent as the polyurethane foaming agent; meanwhile, the heat insulation material has higher heat insulation performance and higher physical strength.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a polyurethane foaming agent, which comprises a foaming agent A, wherein the foaming agent A is AMOLEA, is named as HCFO-1224yd, and has a molecular formula of CF3CF ═ CHCl.
Further, the polyurethane foaming agent comprises the following components in parts by weight: 20-30 parts of foaming agent A, 100 parts of white material and 158 parts of black material 140.
Further, the polyurethane foaming agent comprises the following components in parts by weight: 3-10 parts of foaming agent A, 8-14 parts of foaming agent B, 100 parts of white material and 150 parts of black material 135-one.
Further, the polyurethane foaming agent comprises the following components in parts by weight: foaming agent A1-10 parts, foaming agent B8-16 parts, foaming agent C1-10 parts, white material 100 parts and black material 135-150 parts.
Further, the foaming agent B is cyclopentane or cyclopentane isopentane.
Further, blowing agent C is one or more of 134a, 245fa, LBA, 152a, R600 a.
Further, the white material consists of polyether polyol, water, a catalyst and a stabilizer.
Furthermore, the black material is isocyanate, the viscosity is 300-400(25 ℃)/mPa.s, and the content of the isocyanate is 30-32%.
The invention has the following beneficial effects:
compared with the existing foaming agent, the AMOLEA foaming agent has a lower GWP value and is environment-friendly by adopting the AMOLEA foaming agent as the polyurethane foaming agent; meanwhile, the heat insulation material has higher heat insulation performance and higher physical strength.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a comparison of 245fa, LBA and AMOLEA.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention relates to a polyurethane foaming agent, which comprises a foaming agent A, wherein the foaming agent A is AMOLEA and has the chemical name of HCFO-1224yd, the molecular formula of CF3CF ═ CHCl and the chemical substance registration number of 111512-60-8, and is provided by the Asia east group.
The polyurethane foaming agent comprises the following components in parts by weight: 20-30 parts of foaming agent A, 100 parts of white material and 158 parts of black material 140.
Preferably, the polyurethane foaming agent consists of the following components in parts by weight: 3-10 parts of foaming agent A, 8-14 parts of foaming agent B, 100 parts of white material and 150 parts of black material 135-one.
Preferably, the polyurethane foaming agent consists of the following components in parts by weight: foaming agent A1-10 parts, foaming agent B8-16 parts, foaming agent C1-10 parts, white material 100 parts and black material 135-150 parts.
Preferably, blowing agent B is cyclopentane or cyclopentane isopentane.
Preferably, blowing agent C is one or more of 134a, 245fa, LBA, 152a, R600a
Preferably, the white material consists of polyether polyol, water, a catalyst and a stabilizer.
Preferably, the black material is isocyanate, has a viscosity of 300-400(25 ℃) mPas and an isocyanate content of 30-32%, and is provided by Wanhua chemical group, Inc.
Example 1
The polyurethane foaming agent comprises the following components in parts by weight: 22 parts of AMOLEA foaming agent, 100 parts of white material and 146.4 parts of black material.
A preparation method of a polyurethane foaming agent comprises the following steps:
step one, mixing the white material and AMOLEA in a formula amount in a white material premixing tank to obtain a mixed white material, wherein the material temperature is 18 ℃;
step two, putting isocyanate with the viscosity of 300-400(25 ℃) and mPa & s into a black material premixing tank, and uniformly stirring to obtain a black material, wherein the material temperature is 18 ℃;
injecting the mixed white material and the black material into an inner cavity of a material injection gun head at high speed and high pressure, fully mixing, and injecting into a box body mould to be foamed through a gun head nozzle to form a foaming raw material;
and step four, after the foaming raw materials are cured for a period of time in a box body mould to be foamed, demoulding is carried out, and then the hard polyurethane foam heat-insulating layer is formed in the box body.
And after the completion, obtaining a foaming box body of a high-heat-preservation foaming system, taking out the polyurethane foam of the foaming box body for relevant tests, and comparing.
Comparative example 1
The polyurethane foaming agent comprises the following components in parts by weight: 22 parts of LBA foaming agent, 100 parts of white material and 146.4 parts of black material.
The preparation method is the same as that of example 1, a foaming box body of a common foaming agent is obtained, and polyurethane foam of the foaming box body is taken out for relevant tests and comparison.
Comparative example 2
The polyurethane foaming agent comprises the following components in parts by weight: 22 parts of 245fa foaming agent, 100 parts of white material and 146.4 parts of black material.
The preparation method is the same as that of example 1, a foaming box body of a common foaming agent is obtained, and polyurethane foam of the foaming box body is taken out for relevant tests and comparison.
Specific comparison results are shown in table 1:
as can be seen from the above table, the AMOLEA foaming agent of the present invention has an obvious thermal insulation performance advantage compared with 245fa and LBA foaming agents, and the polyurethane foam using the AMOLEA foaming agent has excellent average core density and compressive strength.
Example 2
The polyurethane foaming agent comprises the following components in parts by weight: 5 parts of AMOLEA foaming agent, 11 parts of cyclopentane foaming agent, 100 parts of white material and 139.2 parts of black material.
A preparation method of a polyurethane foaming agent comprises the following steps:
step one, mixing the white material, AMOLEA and cyclopentane with the formula ratio in a white material premixing tank to obtain a mixed white material, wherein the temperature of the material is 18 ℃;
step two, putting isocyanate with the viscosity of 300-400(25 ℃) and mPa & s into a black material premixing tank, and uniformly stirring to obtain a black material, wherein the material temperature is 18 ℃;
injecting the mixed white material and the black material into an inner cavity of a material injection gun head at high speed and high pressure, fully mixing, and injecting into a box body mould to be foamed through a gun head nozzle to form a foaming raw material;
and step four, after the foaming raw materials are cured for a period of time in a box body mould to be foamed, demoulding is carried out, and then the hard polyurethane foam heat-insulating layer is formed in the box body.
And after the completion, obtaining a foaming box body of a high-heat-preservation foaming system, taking out the polyurethane foam of the foaming box body for relevant tests, and comparing.
Comparative example 3
The polyurethane foaming agent comprises the following components in parts by weight: 5 parts of 245fa foaming agent, 11 parts of cyclopentane foaming agent, 100 parts of white material and 139.2 parts of black material.
The preparation method is the same as that in example 2, a foaming box body of a common foaming agent is obtained, and the polyurethane foam of the foaming box body is taken out for relevant tests and comparison.
Comparative example 4
The polyurethane foaming agent comprises the following components in parts by weight: 5 parts of LBA foaming agent, 11 parts of cyclopentane foaming agent, 100 parts of white material and 139.2 parts of black material.
The preparation method is the same as that in example 2, a foaming box body of a common foaming agent is obtained, and the polyurethane foam of the foaming box body is taken out for relevant tests and comparison.
Specific comparison results are shown in table 2:
| parameter(s) | Example 2 | Comparative example 3 | Comparative example 4 |
| Ratio of black to white | 1.2:1 | 1.2:1 | 1.2:1 |
| AMOLEA parts | 5 | / | / |
| 245fa parts | / | 5 | / |
| LBA number of copies | / | / | 5 |
| Fraction of |
11 | 11 | 11 |
| The temperature of the material was lower | 18 | 18 | 18 |
| Mold temperature C | 45-50 | 45-50 | 45-50 |
| Fill factor alpha | 1.7 | 1.7 | 1.7 |
| Thermal conductivity coefficient of 10 ℃ mw/mk | 19.01 | 19.14 | 19.08 |
| Average core Density kg/m3 | 34.74 | 34.79 | 34.60 |
| Compressive Strength KPa | 168/184/264 | 171/179/268 | 159/161/251 |
As can be seen from the above table, the AMOLEA foaming agent of the present invention has an obvious thermal insulation performance advantage compared with 245fa and LBA foaming agents, and the polyurethane foam using the AMOLEA foaming agent has excellent average core density and compressive strength.
Example 3
The polyurethane foaming agent comprises the following components in parts by weight: 6 parts of AMOLEA foaming agent, 10 parts of cyclopentane foaming agent, 2 parts of 134 foaming agent, 100 parts of white material and 141.6 parts of black material.
A preparation method of a polyurethane foaming agent comprises the following steps:
step one, mixing the white material, AMOLEA, cyclopentane and 134a in a formula amount in a white material premixing tank to obtain a mixed white material, wherein the temperature of the material is 18 ℃;
step two, putting isocyanate with the viscosity of 300-400(25 ℃) and mPa & s into a black material premixing tank, and uniformly stirring to obtain a black material, wherein the material temperature is 18 ℃;
injecting the mixed white material and the black material into an inner cavity of a material injection gun head at high speed and high pressure, fully mixing, and injecting into a box body mould to be foamed through a gun head nozzle to form a foaming raw material;
and step four, after the foaming raw materials are cured for a period of time in a box body mould to be foamed, demoulding is carried out, and then the hard polyurethane foam heat-insulating layer is formed in the box body.
And after the completion, obtaining a foaming box body of a high-heat-preservation foaming system, taking out the polyurethane foam of the foaming box body for relevant tests, and comparing.
Comparative example 5
The polyurethane foaming agent comprises the following components in parts by weight: 6 parts of 245fa foaming agent, 10 parts of cyclopentane foaming agent, 2 parts of 134a foaming agent, 100 parts of white material and 141.6 parts of black material.
The preparation method is the same as that in example 3, a foaming box body of a common foaming agent is obtained, and the polyurethane foam of the foaming box body is taken out for relevant tests and comparison.
Comparative example 6
The polyurethane foaming agent comprises the following components in parts by weight: 6 parts of LBA foaming agent, 10 parts of cyclopentane foaming agent, 2 parts of 134a foaming agent, 100 parts of white material and 141.6 parts of black material.
The preparation method is the same as that in example 3, a foaming box body of a common foaming agent is obtained, and the polyurethane foam of the foaming box body is taken out for relevant tests and comparison.
Specific comparison results are shown in table 3:
| parameter(s) | Example 3 | Comparative example 5 | Comparative example 6 |
| Ratio of black to white | 1.2:1 | 1.2:1 | 1.2:1 |
| AMOLEA parts | 6 | / | / |
| 245fa parts | / | 6 | / |
| LBA number of copies | / | / | 6 |
| Fraction of cyclopentane | 10 | 10 | 10 |
| 134a parts by weight | 2 | 2 | 2 |
| The temperature of the material was lower | 18 | 18 | 18 |
| Mold temperature C | 45-50 | 45-50 | 45-50 |
| Fill factor alpha | 1.7 | 1.7 | 1.7 |
| Thermal conductivity coefficient of 10 ℃ mw/mk | 19.03 | 19.15 | 19.09 |
| Average core Density kg/m3 | 34.74 | 34.79 | 34.60 |
| Compressive Strength KPa | 176/173/269 | 175/182/279 | 169/170/269 |
As can be seen from the above table, the AMOLEA foaming agent of the present invention has an obvious thermal insulation performance advantage compared with 245fa and LBA foaming agents, and the polyurethane foam using the AMOLEA foaming agent has excellent average core density and compressive strength.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A polyurethane blowing agent comprising blowing agent a which is AMOLEA having the chemical name HCFO-1224yd and the molecular formula CF3CF ═ CHCl.
2. The polyurethane foaming agent as claimed in claim 1, which is prepared from the following components in parts by weight: the foaming agent A as defined in claim 1, which comprises 20-30 parts of the foaming agent A, 100 parts of the white material, and 158 parts of the black material.
3. The polyurethane foaming agent as claimed in claim 1, which is prepared from the following components in parts by weight: the foaming agent of claim 1, wherein the foaming agent comprises 3-10 parts of foaming agent A, 8-14 parts of foaming agent B, 100 parts of white material and 150 parts of black material 135-.
4. The polyurethane foaming agent as claimed in claim 1, which is prepared from the following components in parts by weight: the foaming agent A1-10 parts, foaming agent B8-16 parts, foaming agent C1-10 parts, white material 100 parts and black material 135-150 parts as defined in claim 1.
5. A polyurethane blowing agent according to claim 1, wherein blowing agent B is cyclopentane or cyclopentane isopentane.
6. A polyurethane blowing agent as claimed in claim 1 wherein blowing agent C is one or more of 134a, 245fa, LBA, 152a, R600 a.
7. The polyurethane foaming agent as claimed in claim 1, wherein the white material is composed of polyether polyol, water, catalyst and stabilizer.
8. The polyurethane foaming agent as claimed in claim 1, wherein the black material is isocyanate, the viscosity is 300-400(25 ℃)/mPa-s, and the isocyanate content is 30-32%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011623130.2A CN112812354A (en) | 2020-12-30 | 2020-12-30 | Polyurethane foaming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011623130.2A CN112812354A (en) | 2020-12-30 | 2020-12-30 | Polyurethane foaming agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112812354A true CN112812354A (en) | 2021-05-18 |
Family
ID=75854604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011623130.2A Pending CN112812354A (en) | 2020-12-30 | 2020-12-30 | Polyurethane foaming agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112812354A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303364A (en) * | 2020-04-15 | 2020-06-19 | 长虹美菱股份有限公司 | High-heat-insulation polyurethane foaming formula and freezer based on same |
| CN113999362A (en) * | 2021-11-26 | 2022-02-01 | 万华化学（宁波）容威聚氨酯有限公司 | High-strength low-conductivity polyurethane rigid foam and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015105342A (en) * | 2013-11-29 | 2015-06-08 | 旭硝子株式会社 | Rigid foamed synthetic resin and method of producing the same |
| CN111263780A (en) * | 2017-11-01 | 2020-06-09 | Ａｇｃ株式会社 | Method for producing hard foamed synthetic resin |
| CN112063004A (en) * | 2020-09-15 | 2020-12-11 | 长虹美菱股份有限公司 | Environment-friendly high-heat-preservation polyurethane heat-preservation layer and foaming method |
-
2020
- 2020-12-30 CN CN202011623130.2A patent/CN112812354A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015105342A (en) * | 2013-11-29 | 2015-06-08 | 旭硝子株式会社 | Rigid foamed synthetic resin and method of producing the same |
| CN111263780A (en) * | 2017-11-01 | 2020-06-09 | Ａｇｃ株式会社 | Method for producing hard foamed synthetic resin |
| CN112063004A (en) * | 2020-09-15 | 2020-12-11 | 长虹美菱股份有限公司 | Environment-friendly high-heat-preservation polyurethane heat-preservation layer and foaming method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303364A (en) * | 2020-04-15 | 2020-06-19 | 长虹美菱股份有限公司 | High-heat-insulation polyurethane foaming formula and freezer based on same |
| CN113999362A (en) * | 2021-11-26 | 2022-02-01 | 万华化学（宁波）容威聚氨酯有限公司 | High-strength low-conductivity polyurethane rigid foam and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104628978B (en) | Composition, rigid polyurethane foam and refrigeration plant | |
| CN105038182B (en) | Combined polyether, polyurethane raw material composition, foam and preparation method and application | |
| CN103319677B (en) | Solar water heater water tank polyether glycol cellular insulant | |
| CN102079803B (en) | Full-water-type combined polyether and application method thereof, and polyurethane rigid foam composition | |
| WO2019237728A1 (en) | Composition kit for preparing polyurethane foam and preparation method and application thereof | |
| CN103319678B (en) | Solar water heater water tank polyurethane hard foam lagging material | |
| CN106750093A (en) | A kind of refrigerator for the polyurethane foam system of refrigerator and based on it | |
| CN109762136B (en) | Polyurethane foaming composition, polyurethane foam, and preparation method and application thereof | |
| CN103333309B (en) | Polyether polyol foaming inorganic fireproof thermal insulation material of water tank of solar water heater | |
| CN112812354A (en) | Polyurethane foaming agent | |
| CN110105520B (en) | Heat-insulating rigid polyurethane foam and preparation method thereof | |
| CN113999362B (en) | High-strength low-conductivity polyurethane rigid foam and preparation method thereof | |
| CN104788642A (en) | Hard polyurethane foam for ultralow-temperature insulation and preparation method thereof | |
| CN110396213B (en) | Polyurethane heat-insulating layer for refrigerator and preparation method thereof | |
| CN107163220A (en) | A kind of polyurethane foam system and the refrigerator based on it | |
| CN111320737A (en) | Polyurethane raw material composition, preparation method and application of polyurethane rigid foam | |
| CN104262670A (en) | Foaming agent composition, polyurethane foam and manufacturing method thereof | |
| CN107955119A (en) | Environmental-protection flame-retardant cold chain heat insulation box combined polyether and preparation method thereof | |
| CN106188615A (en) | Triple combination foaming agent, hard polyurethane foam and manufacture method thereof | |
| CN110172173B (en) | Composition for reaction with isocyanate | |
| CN111471210A (en) | Polyurethane composition of pentane co-foaming system and preparation method of polyurethane rigid foam | |
| CN113754850A (en) | Polyurethane foam and preparation method and application thereof | |
| CN113563555A (en) | Polyurethane foaming material and foaming process thereof | |
| CN112063004A (en) | Environment-friendly high-heat-preservation polyurethane heat-preservation layer and foaming method | |
| CN110511422B (en) | Polyurethane heat-insulating layer for refrigerator and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210518 |