CN106750093A - A kind of refrigerator for the polyurethane foam system of refrigerator and based on it - Google Patents
A kind of refrigerator for the polyurethane foam system of refrigerator and based on it Download PDFInfo
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- CN106750093A CN106750093A CN201611082716.6A CN201611082716A CN106750093A CN 106750093 A CN106750093 A CN 106750093A CN 201611082716 A CN201611082716 A CN 201611082716A CN 106750093 A CN106750093 A CN 106750093A
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- Prior art keywords
- refrigerator
- polyurethane foam
- foam system
- refrigerator body
- temperature
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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
-
- 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
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5024—Polyethers having heteroatoms other than oxygen having nitrogen containing primary and/or secondary amino groups
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/143—Halogen containing compounds
- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
- C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
-
- 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
- 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)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a kind of polyurethane foam system for refrigerator and the refrigerator based on it, its foaming raw material is constituted after being compounded by certain quality parts ratio by combined polyether, physical blowing agent HFC 245fa, physical blowing agent HFO 1233zd (E) and isocyanates.Preferably, mechanical property is higher, and non-ignitable not quick-fried for polyurethane foam system heat-insulating property of the invention；The hard polyurethane foams thermal conductivity factor that is made up of the system expanding foam solution is relatively low, mechanical property is stronger, so as to improve the heat-insulating property and structural stability of refrigerator.
Description
Technical field
The invention belongs to cryogenic storage field, specifically a kind of heat-insulating property of use Novel foaming system is good
The refrigerator of good family expenses/commercialization.
Background technology
With the development of science and technology refrigerator is used as a kind of cryogenic storage, either for family daily life, or use
In the field such as scientific research or medical treatment, demand increasingly increases, while the requirement to energy-conserving and environment-protective is also further harsh.
Current refrigerator is most of or is made using conventional urethane foaming system, and it is with pentamethylene as Main physical
Foaming agent.The foaming agent poor thermal insulation property, causes energy consumption of refrigerator high, can not meet want increasingly elevated to heat-insulating property
Ask, therefore the refrigerator foaming system of exploitation more energy-conserving and environment-protective is imperative.
The content of the invention
The present invention is to solve the weak point existing for above-mentioned prior art, there is provided a kind of polyurethane hair for refrigerator
Foam system and the refrigerator based on it, it is intended to improve its heat-insulating property, and then make the refrigerator of more energy-conservation.
The present invention discloses the polyurethane foam system for refrigerator first, and its each raw material is by the composition of mass parts：
Wherein：The degree of functionality of the combined polyether is 3-6, and viscosity is 600-800mPas at room temperature；The isocyanates
It is polymethylene multi-phenenyl isocyanate, isocyano-content 30-32%, viscosity is 200-400mPas at room temperature.
The combined polyether includes polyether polyol component, catalyst and surfactant, wherein polyether polyol component
By each material composition of following mass fraction：
The PPG A is the PPG with mannitol and/or sorbierite as initiator；
The PPG B is the PPG with trimethylolpropane as initiator；
The PPG C is the PPG with sucrose as initiator；
The PPG D is with several warps of triethanolamine, ethylenediamine, formaldehyde, diethanol, phenol or toluenediamine
Graceful formula reaction obtains the amino-polyether polyalcohol that product is initiator.
The present invention further discloses a kind of refrigerator, the insulation hard polyurethane foams in its casing are by above-mentioned polyurethane
Foaming system is fabricated by, and manufacture method is as follows：
1) under the conditions of 15~25 DEG C of temperature of charge, by combined polyether, physical blowing agent HFC-245fa and physical blowing agent
HFO-1233zd (E) is mixed by proportioning, obtains mixing white material；
2) under the conditions of 15~25 DEG C of temperature of charge, isocyanates is put into premixing tank and is stirred, obtain black material；
3) under the conditions of 15~25 DEG C of temperature of charge, black material is mixed with white material is mixed by high pressure foaming machine by proportioning
Afterwards, it is rapidly injected in refrigerator body to be foamed；
4) refrigerator body mold temperature to be foamed is controlled at 40~55 DEG C, and fill factor α is foaming raw material in a mold
1.5~1.8, by after 180s~600s solidifications, the demoulding forms insulation hard polyurethane foams that is, in refrigerator body.
Beneficial effects of the present invention are embodied in：
1st, preferably, mechanical property is higher, and non-ignitable not quick-fried for polyurethane foam system heat-insulating property of the invention；By the body
It is that the hard polyurethane foams thermal conductivity factor that expanding foam solution is made is relatively low, mechanical property is stronger, so as to improve the heat-insulating property of refrigerator
And structural stability.
2nd, polyurethane foam system of the invention, using two kinds of things of HFC-245fa and HFO-1233zd (E) of excellent performance
Haircut infusion, greatly improved the heat-insulating property of hard polyurethane foams, so as to reduce energy consumption of refrigerator；
3rd, polyurethane foam system of the invention, using two kinds of things of HFC-245fa and HFO-1233zd (E) of excellent performance
Haircut infusion, it is possible to decrease the abscess aperture of hard polyurethane foams, so that the compressive strength of hard polyurethane foams is improved, and
The dimensional stability of foam, is conducive to the stabilization of refrigerator structure；
4th, two kinds of physical blowing agents that the present invention is used are non-combustible, without fire-proof and explosion-proof treatment, can avoid disaster hidden-trouble,
Greatly production safety is ensured.
Specific embodiment
The present invention is illustrated below by way of specific embodiment, but the present invention is not merely defined in these embodiments.
Combined polyether used by following embodiments is provided by BASF Polyurethane Special Products (China) Co., Ltd, the trade mark
It is CH2030/131；Black material polymethylene multi-phenenyl isocyanate used is the general black material of domestic refrigerator, by BASF Polyurethane
Special Products (China) Co., Ltd, Wanhua Chemical Group Co., Ltd., DOW Chemical (China) Investment Co., Ltd carry
For the trade mark is PM-2010.
Embodiment 1
Each raw material of the present embodiment polyurethane foam system is by the composition of mass parts：
Using the polyurethane foam system of the present embodiment, the step of insulation hard polyurethane foams in manufacture refrigerator body
It is as follows：
1) under the conditions of 20 DEG C of temperature of charge, by combined polyether, physical blowing agent HFC-245fa and physical blowing agent HFO-
1233zd (E) is mixed by proportioning, obtains mixing white material；
2) under the conditions of 20 DEG C of temperature of charge, isocyanates is put into premixing tank and is stirred, obtain black material；
3) under the conditions of 20 DEG C of temperature of charge, by proportioning by black material with mix in vain expect by high pressure foaming machine mixing after, soon
In speed injection refrigerator body to be foamed；
4), at 45 DEG C, fill factor α is 1.6 to foaming raw material in a mold for refrigerator body mold temperature control to be foamed,
By after 300s solidifications, being removed from the molds foaming box body, i.e., insulation hard polyurethane foams are formed in refrigerator body.
After casing to be foamed is cooled to room temperature, the hard polyurethane foams in casing are taken out, and test its correlated performance,
The results are shown in Table 1.
Embodiment 2
Each raw material of the present embodiment polyurethane foam system is by the composition of mass parts：
Using the polyurethane foam system of the present embodiment, the method for the insulation hard polyurethane foams in manufacture refrigerator body
It is same as Example 1.
After casing to be foamed is cooled to room temperature, the hard polyurethane foams in casing are taken out, and test its correlated performance,
The results are shown in Table 1.
Embodiment 3
Each raw material of the present embodiment polyurethane foam system is by the composition of mass parts：
Using the polyurethane foam system of the present embodiment, the method for the insulation hard polyurethane foams in manufacture refrigerator body
It is same as Example 1.
After casing to be foamed is cooled to room temperature, the hard polyurethane foams in casing are taken out, and test its correlated performance,
The results are shown in Table 1.
Comparative example
Each raw material of the present embodiment polyurethane foam system is by the composition of mass parts：
100 parts of combined polyether；
13 parts of physical blowing agent pentamethylene；
144 parts of isocyanates.
Using the polyurethane foam system of the present embodiment, the method for the insulation hard polyurethane foams in manufacture refrigerator body
It is same as Example 1.
After casing to be foamed is cooled to room temperature, the hard polyurethane foams in casing are taken out, and test its correlated performance,
The results are shown in Table 1.
Table 1
| Parameter | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example |
| Black and white material material ratio | 1.20:1 | 1.20:1 | 1.20:1 | 1.27:1 |
| HFC-245fa, HFO-1233zd (E) number | 15、15 | 10、20 | 20、10 | / |
| Pentamethylene number | / | / | / | 13 |
| Temperature of charge DEG C | 20 | 20 | 20 | 20 |
| Mold temperature DEG C | 45 | 45 | 45 | 45 |
| Fill factor α | 1.6 | 1.6 | 1.6 | 1.6 |
| Hardening time s | 300 | 300 | 300 | 300 |
| Average core density kg/m3 | 31.4 | 31.2 | 32.0 | 38.8 |
| 10 DEG C of mW/mK of mean coefficient of heat conductivity | 17.4 | 17.2 | 17.5 | 20.3 |
| Average compressive strength kpa vertical direction ⊥/horizontal direction ∥ | 192/168 | 195/169 | 186/163 | 177/152 |
| - 70 DEG C of 24h% of cubical contraction | 0.48 | 0.45 | 0.44 | 0.63 |
Claims (4)
1. a kind of polyurethane foam system for refrigerator, it is characterised in that：Each raw material of the polyurethane foam system presses matter
Measure part composition be：
2. polyurethane foam system according to claim 1, it is characterised in that：The degree of functionality of the combined polyether is 3-6,
Viscosity is 600-800mPas at room temperature；
The isocyanates be polymethylene multi-phenenyl isocyanate, isocyano-content 30-32%, at room temperature viscosity be 200-
400mPa·s。
3. a kind of refrigerator, it is characterised in that：Insulation hard polyurethane foams in the refrigerator body are by the institute of claim 1 or 2
The polyurethane foam system stated is fabricated by.
4. a kind of polyurethane foam system as described in claim 1 or 2 manufactures the insulation rigid polyurethane foam in refrigerator body
The method of foam, it is characterised in that comprise the following steps：
1) under the conditions of 15~25 DEG C of temperature of charge, by combined polyether, physical blowing agent HFC-245fa and physical blowing agent HFO-
1233zd (E) is mixed by proportioning, obtains mixing white material；
2) under the conditions of 15~25 DEG C of temperature of charge, isocyanates is put into premixing tank and is stirred, obtain black material；
3) under the conditions of 15~25 DEG C of temperature of charge, by proportioning by black material with mix in vain expect by high pressure foaming machine mixing after, soon
In speed injection refrigerator body to be foamed；
4) refrigerator body mold temperature control to be foamed at 40~55 DEG C, foaming raw material in a mold fill factor α be 1.5~
1.8, by after 180s~600s solidifications, the demoulding forms insulation hard polyurethane foams that is, in refrigerator body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611082716.6A CN106750093A (en) | 2016-11-30 | 2016-11-30 | A kind of refrigerator for the polyurethane foam system of refrigerator and based on it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611082716.6A CN106750093A (en) | 2016-11-30 | 2016-11-30 | A kind of refrigerator for the polyurethane foam system of refrigerator and based on it |
Publications (1)
| Publication Number | Publication Date |
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| CN106750093A true CN106750093A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611082716.6A Pending CN106750093A (en) | 2016-11-30 | 2016-11-30 | A kind of refrigerator for the polyurethane foam system of refrigerator and based on it |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057024A (en) * | 2017-06-08 | 2017-08-18 | 合肥美菱股份有限公司 | It is a kind of applied to expanding foam solution material of cryogenic refrigerator and preparation method thereof |
| CN107163220A (en) * | 2017-06-28 | 2017-09-15 | 合肥美菱股份有限公司 | A kind of polyurethane foam system and the refrigerator based on it |
| CN107163221A (en) * | 2017-06-28 | 2017-09-15 | 合肥美菱股份有限公司 | A kind of refrigerator for the high-quality polyurethane foam system of refrigerator and based on it |
| CN107200827A (en) * | 2017-07-24 | 2017-09-26 | 合肥美菱股份有限公司 | A kind of polyurathamc and its application for refrigerator door flip beam |
| CN107383334A (en) * | 2017-09-01 | 2017-11-24 | 河南光阳节能材料有限公司 | Low close, low weight is than polyurethane composition polyethers and rigid foam |
| CN107522835A (en) * | 2017-08-17 | 2017-12-29 | 合肥美菱股份有限公司 | A kind of high viscosity fast response polyurethane foam system and its application |
| CN107522844A (en) * | 2017-09-27 | 2017-12-29 | 合肥美菱股份有限公司 | A kind of polyurethane foam for refrigerator and preparation method thereof |
| CN108864396A (en) * | 2018-07-24 | 2018-11-23 | 长虹美菱股份有限公司 | A kind of refrigerator hard polyurethane foam foaming formulation and preparation method thereof |
| CN110698714A (en) * | 2019-10-08 | 2020-01-17 | 长虹美菱股份有限公司 | Heat preservation foaming system based on heat preservation refrigerator |
| US11753516B2 (en) | 2021-10-08 | 2023-09-12 | Covestro Llc | HFO-containing compositions and methods of producing foams |
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| CN104628978A (en) * | 2014-07-10 | 2015-05-20 | 合肥华凌股份有限公司 | Composition, rigid polyurethane foam material and refrigeration equipment |
| CN104193956A (en) * | 2014-09-12 | 2014-12-10 | 上海东方雨虹防水技术有限责任公司 | Rigid polyurethane casting material |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057024A (en) * | 2017-06-08 | 2017-08-18 | 合肥美菱股份有限公司 | It is a kind of applied to expanding foam solution material of cryogenic refrigerator and preparation method thereof |
| CN107163220A (en) * | 2017-06-28 | 2017-09-15 | 合肥美菱股份有限公司 | A kind of polyurethane foam system and the refrigerator based on it |
| CN107163221A (en) * | 2017-06-28 | 2017-09-15 | 合肥美菱股份有限公司 | A kind of refrigerator for the high-quality polyurethane foam system of refrigerator and based on it |
| CN107200827A (en) * | 2017-07-24 | 2017-09-26 | 合肥美菱股份有限公司 | A kind of polyurathamc and its application for refrigerator door flip beam |
| CN107200827B (en) * | 2017-07-24 | 2020-12-11 | 长虹美菱股份有限公司 | Foamed polyurethane for refrigerator door turnover beam and application thereof |
| CN107522835A (en) * | 2017-08-17 | 2017-12-29 | 合肥美菱股份有限公司 | A kind of high viscosity fast response polyurethane foam system and its application |
| CN107383334A (en) * | 2017-09-01 | 2017-11-24 | 河南光阳节能材料有限公司 | Low close, low weight is than polyurethane composition polyethers and rigid foam |
| CN107522844A (en) * | 2017-09-27 | 2017-12-29 | 合肥美菱股份有限公司 | A kind of polyurethane foam for refrigerator and preparation method thereof |
| CN108864396A (en) * | 2018-07-24 | 2018-11-23 | 长虹美菱股份有限公司 | A kind of refrigerator hard polyurethane foam foaming formulation and preparation method thereof |
| CN110698714A (en) * | 2019-10-08 | 2020-01-17 | 长虹美菱股份有限公司 | Heat preservation foaming system based on heat preservation refrigerator |
| US11753516B2 (en) | 2021-10-08 | 2023-09-12 | Covestro Llc | HFO-containing compositions and methods of producing foams |
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Application publication date: 20170531 |
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