CN103739808A - Polyurethane thermal-insulation material and preparation method thereof - Google Patents
Polyurethane thermal-insulation material and preparation method thereof Download PDFInfo
- Publication number
- CN103739808A CN103739808A CN201310732766.4A CN201310732766A CN103739808A CN 103739808 A CN103739808 A CN 103739808A CN 201310732766 A CN201310732766 A CN 201310732766A CN 103739808 A CN103739808 A CN 103739808A
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- Prior art keywords
- component
- insulation material
- polyether
- heat insulation
- foam
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
- C08G18/1816—Catalysts containing secondary or tertiary amines or salts thereof having carbocyclic groups
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Abstract
The invention relates to a polyurethane thermal-insulation material and a preparation method thereof. The invention discloses a solar polyurethane thermal-insulation material which is proportionally prepared from MDI (methylenediphenyl diisocyanate), bio-based polyether glycol, deionized water, sorbitol polyether, sucrose polyether, foam stabilizer and catalyst. The method is simple in technique and convenient to operate, is environment-friendly and green, and has no no toxic or side effect; the ozone depletion potential (ODP) value is zero; and the full water foam preparation technique is simple, has low requirements for equipment, and can continue using the equipment of the CFC-11 or HCFC141b system.
Description
Technical field
The present invention relates to polyurethane heat insulation material.
Background technology
In recent years, along with deepening continuously of China's dwelling construction energy conservation, and the improving constantly of energy conservation standard, introduce and developed many novel power-saving technologies and material, in residential housing, vigorously promote the use.Wherein be applied to the various porous plastics lagging materials of exterior-wall heat insulation, as its excellent combination properties of factor such as EPS plate, XPS plate material and polyurathamc sheet materials, attract people's attention.
Polyurethane heat insulation material is the current best lagging material of performance in the world.Hard polyaminoester has that quality is light, thermal conductivity is low, good heat resistance, ageing-resistant, easily and other base material cohere, burn and do not produce the excellent properties such as molten drop, in American-European countries, be widely used in the roof, body of wall, top ceiling, floor, door and window etc. of buildings as heat preserving and insulating material.In the building thermal insulation material of the developed countries such as America and Europe, approximately have 49% for polyurethane material, and in still less than 10% of this ratio of China.
Polyurethane heat insulation material is a kind of very important synthetic materials, has excellent physical and mechanical properties and chemical resistance, and especially thermal conductivity is low, is a kind of lagging material of high-quality, is widely used in refrigerator, refrigerator and automobile industry, building trade.In hard polyurethane foam, conventional whipping agent is Chlorofluorocarbons (CFCs) (CFC) whipping agent, but because Chlorofluorocarbons (CFCs) (CFC) whipping agent has destruction to atmospheric ozone layer, in order to safeguard ecotope, international convention has been made strict restriction and regulation to its production and use.Therefore, the vital task that polyurethane industrial faces is exactly to select the surrogate of CFC, reduces and stop the application of CFC.With zero or the whipping agent of low ODP value to substitute Chlorofluorocarbons (CFCs) be the most great problem of urethane foam industry, impel foam production technology generation significant change.
Polyurethane heat-insulation is mostly the foamed and sprayed mode in working-yard, owing to being to foam in scene, belongs to chemical reaction, requires temperature higher, under low temperature, can affect foaming effect.General requirement 15 degree are better above.This material significant parameter has density, thermal conductivity, combustionproperty etc.Expansion after construction is not too large, and just part, because raw material stirring is inhomogeneous, bulge phenomenon may occur.This kind of lagging material application is at present less, is mainly because defect is more.As being subject to, weather effect is large, material fire resistance is low, construction pollution is large, the bad control of surface finish, foaming effect are wayward etc.
In prior art, there are a lot of solar energy thermal insulation materials using water as whipping agent, but there are a lot of shortcomings in full water foamed technology, picture foam insulation performance is bad, system viscosity is too large, and mobility is bad, and CO2 diffusion is too fast, foam size stability is bad, is restricting applying of full water foamed technology.
Summary of the invention
In order to overcome the above problems, the invention provides a kind of foam insulation performance good, full aqueous systems viscosity is little, mobility is good,
The sun power polyurethane foam heat insulation material of foam size good stability.
The present invention is achieved through the following technical solutions:
A kind of sun power polyurethane heat insulation material, by A component and B component, with weight ratio, be obtained by mixing at 1.36: 1, described A component is that NCO content is the MDI of 30-32wt%, and described B component is full water combined polyether, and described full water combined polyether is comprised of the component of following weight part:
Biobased polyether polyol 35-40 part,
Deionized water 6-8 part,
Sorbyl alcohol polyethers 25-29 part,
Sucrose polyethers 31-35 part,
Foam stabilizer 2.2-2.8 part,
Catalyzer 2-3 part,
Described biobased polyether polyol molecular weight distribution is 1000-1200, and hydroxyl value is 490mgKOH/g, and 25 ° of C viscositys are
3600mPas, described foam stabilizer is polyether-modified organopolysiloxane, described catalyzer is N, N-dimethylcyclohexylamine.
Preparation method is:
Each component in B component is extracted into little batch can from charging basket to be uniformly mixed and to obtain B component, the temperature control of A component and B component is 28-30 ℃, A component and B component are after in High Pressure Gun, high velocity impact mixes, be filled in the cavity of solar water container and foam, after hot setting, can obtain not destroying the sun power polyurethane heat insulation material of atmospheric ozone layer, the material feeding pressure of two components is 130-140bar, the little 6bar of material feeding pressure ratio B component material feeding pressure of A component.
The biobased polyether polyol using has lower viscosity, higher molecular weight, and molecular weight distribution is more even, higher functionality, does main body, the foam size good stability of generation with this polyethers, have viscosity little, the cohesiveness of good fluidity, foam surface and base material is good.
Technique of the present invention is simple, easy to operate, environment-friendly and green, and ozone layer destroying effect ODP value is zero, has no side effect, full water bubble preparation technology is easy, very low to the requirement of equipment, can continue to use the equipment of CFC-11 or HCFC-141b system; Biobased polyether polyol has unique performance in full water foamed, and the lagging material of making is without phenomenons such as contraction, distortion, expansions when normal temperature, 100 ° of C of high temperature, low temperature-25 ° C, and stability is high, and thermal conductivity is low.
Embodiment
Embodiment 1
A component is that NCO content is the MDI of 30wt%,
B component is full water combined polyether, the component of following weight part, consists of:
35 parts of biobased polyether polyols
6 parts of deionized waters
25 parts of sorbyl alcohol polyethers
31 parts of sucrose polyethers
2.2 parts of polyether-modified organopolysiloxanes
N, 2 parts of N-dimethylcyclohexylamines
Described biobased polyether polyol molecular weight distribution is 1000 ~ 1200, and hydroxyl value is 490mgKOH/g, and 25 ° of C viscositys are
3600mPa·s。
Preparation method:
Each component in B component is extracted into little batch can from charging basket to be uniformly mixed and to obtain B component, the temperature control of A component and B component is 28-30 ℃, A component and B component are after in High Pressure Gun, high velocity impact mixes, be filled in the cavity of solar water container and foam, after hot setting, can obtain not destroying the sun power polyurethane heat insulation material of atmospheric ozone layer, the material feeding pressure of two components is 130-140bar, the little 6bar of material feeding pressure ratio B component material feeding pressure of A component.
Embodiment 2
A component is that NCO content is the MDI of 30wt%,
B component is full water combined polyether, the component of following weight part, consists of:
40 parts of biobased polyether polyols
8 parts of deionized waters
29 parts of sorbyl alcohol polyethers
35 parts of sucrose polyethers
2.8 parts of polyether-modified organopolysiloxanes
N, 3 parts of N-dimethylcyclohexylamines
Described biobased polyether polyol molecular weight distribution is 1000 ~ 1200, and hydroxyl value is 490mgKOH/g, and 25 ° of C viscositys are
3600mPa·s。
Preparation method is with embodiment 1.
Performance test:
According to the building material industry standard JC/T-2006 of the People's Republic of China (PRC), measure thermal conductivity, rate of closed hole, water-intake rate and the compressive strength of the sun power polyurethane heat insulation material making.
Carry out low-temperature test, first at-25 ° of C temperature freezing 48 hours, observe water tank spot and change, size up velocity of variation; Then under 100 ° of C, scorch 48 hours, observe water tank spot and change, size up velocity of variation.
By the graduate report of Guangxi Zhuang Autonomous Region quality product supervision and check in Table 1.
From freely steeping each parameter, freely steeping effect density, the cohesiveness of freely steeping loss, polyurethane material and aluminium plating zinc plate, casing density and water tank foaming, the process industrial art performance of sun power polyurethane heat insulation material of the present invention is good, at foaming rear water box, in standing process, without outer, take off, aperture outward appearance is good, through freezing rear water box, without outer de-, nothing expects to split, collapse bubble phenomenon.Sun power hard polyurethane foam advantage of the present invention: when normal temperature, 100 ° of C of high temperature, the subzero 25 ° of C of low temperature without phenomenons such as contraction, distortion, expansions, dimensional stability is higher, and its compressive strength is high in addition, and fragility is little, thermal conductivity is low, is a kind of lagging material of excellent performance.
Claims (2)
1. a sun power polyurethane heat insulation material, by A component and B component, with weight ratio, be obtained by mixing at 1.36: 1, described A component is that NCO content is the MDI of 30-32wt%, and described B component is full water combined polyether, and described full water combined polyether is comprised of the component of following weight part:
Biobased polyether polyol 35-40 part,
Deionized water 6-8 part,
Sorbyl alcohol polyethers 25-29 part,
Sucrose polyethers 31-35 part,
Foam stabilizer 2.2-2.8 part,
Catalyzer 2-3 part,
Described biobased polyether polyol molecular weight distribution is 1000-1200, and hydroxyl value is 490mgKOH/g, and 25 ° of C viscositys are
3600mPas, described foam stabilizer is polyether-modified organopolysiloxane, described catalyzer is N, N-dimethylcyclohexylamine.
2. the preparation method of a kind of sun power polyurethane heat insulation material according to claim 1 is:
Each component in B component is extracted into little batch can from charging basket to be uniformly mixed and to obtain B component, the temperature control of A component and B component is 28-30 ℃, A component and B component are after in High Pressure Gun, high velocity impact mixes, be filled in the cavity of solar water container and foam, after hot setting, can obtain not destroying the sun power polyurethane heat insulation material of atmospheric ozone layer, the material feeding pressure of two components is 130-140bar, the little 6bar of material feeding pressure ratio B component material feeding pressure of A component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310732766.4A CN103739808A (en) | 2013-12-27 | 2013-12-27 | Polyurethane thermal-insulation material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310732766.4A CN103739808A (en) | 2013-12-27 | 2013-12-27 | Polyurethane thermal-insulation material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103739808A true CN103739808A (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310732766.4A Pending CN103739808A (en) | 2013-12-27 | 2013-12-27 | Polyurethane thermal-insulation material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106188488A (en) * | 2016-08-03 | 2016-12-07 | 南宁可煜能源科技有限公司 | A kind of polyurethane heat insulation material |
| CN106221180A (en) * | 2016-07-25 | 2016-12-14 | 广西南宁智翠科技咨询有限公司 | A kind of novel solar water heater water tank environment-friendly insulating material |
| CN106279605A (en) * | 2016-08-03 | 2017-01-04 | 南宁可煜能源科技有限公司 | A kind of polyurethane foam heat insulation material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348551A (en) * | 2008-08-29 | 2009-01-21 | 常熟理工学院 | Water-blown polyurethane rigid foam combined polyether |
| CN102229697A (en) * | 2011-05-31 | 2011-11-02 | 山东力诺瑞特新能源有限公司 | Solar polyurethane thermal insulation material |
-
2013
- 2013-12-27 CN CN201310732766.4A patent/CN103739808A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348551A (en) * | 2008-08-29 | 2009-01-21 | 常熟理工学院 | Water-blown polyurethane rigid foam combined polyether |
| CN102229697A (en) * | 2011-05-31 | 2011-11-02 | 山东力诺瑞特新能源有限公司 | Solar polyurethane thermal insulation material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221180A (en) * | 2016-07-25 | 2016-12-14 | 广西南宁智翠科技咨询有限公司 | A kind of novel solar water heater water tank environment-friendly insulating material |
| CN106188488A (en) * | 2016-08-03 | 2016-12-07 | 南宁可煜能源科技有限公司 | A kind of polyurethane heat insulation material |
| CN106279605A (en) * | 2016-08-03 | 2017-01-04 | 南宁可煜能源科技有限公司 | A kind of polyurethane foam heat insulation material |
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Application publication date: 20140423 |