CN102229697A - Solar polyurethane thermal insulation material - Google Patents
Solar polyurethane thermal insulation material Download PDFInfo
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- CN102229697A CN102229697A CN 201110142706 CN201110142706A CN102229697A CN 102229697 A CN102229697 A CN 102229697A CN 201110142706 CN201110142706 CN 201110142706 CN 201110142706 A CN201110142706 A CN 201110142706A CN 102229697 A CN102229697 A CN 102229697A
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Abstract
The invention relates to a solar polyurethane thermal insulation material which belongs to the technical field of solar thermal insulation materials. MDI (methyl diphenylene diisocyanate) containing 30-32wt% of NCO (isocyanate group) is mixed with full-water combined polyether according to a weight ratio of 1.294:1, thereby acquiring the solar polyurethane thermal insulation material. The full-water combined polyether comprises bio-polyether polyol, deionized water, sorbierite polyether, cane sugar polyether, foam evening agent and catalyst, wherein the molecular weight distribution of the bio-polyether polyol is 1000-1200; a hydroxyl value is 490mgKOH/g; a viscosity at 25 DEG C is 3600mPa.s; the foam evening agent is polyether modified organic siloxane; and the catalyst is N,N-dimethyl cyclohexane. The solar polyurethane thermal insulation material has the advantages that the preparation process is simple, the operation is convenient and the automatic continuous production is realized; the environment is protected, an ODP (Ozone Damaging Potential) value is zero and the toxic side effect does not exist; and the phenomena of contraction, transformation and expansion at normal temperature, 100 DEG C or 25 DEG C are avoided, the size stability is high, the strength is high, the brittleness is small and the heat-conducting coefficient is small.
Description
Technical field
The present invention relates to the solar energy thermal insulation material technical field, particularly a kind of sun power polyurethane heat insulation material.
Background technology
At present, the principle of solar energy thermal insulation material is for using high pressure pouring equipment with combined polyether and the isocyanic ester high pressure bump by 100Bar, the polyurethane heat insulation material that mixes.Polyurethane heat insulation material is a kind of very important synthetic materials, has excellent physical and mechanical performance and chemical resistance, and especially thermal conductivity is low, is a kind of fine lagging material, is widely used in refrigerator, refrigerator and automobile industry, building trade.In hard polyurethane foam, whipping agent commonly used 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 the alternative Chlorofluorocarbons (CFCs) of the whipping agent of zero or low ODP value is the most great problem of urethane foam industry, impels foam production technology generation significant change.
In hard polyurethane foam, CFC-11 commonly used substitutes whipping agent, and to mainly contain HCFC-141b is the HCFC class whipping agent of representative, be the hydrocarbon blowing agents and the water foaming agent of representative with the pentane.Make whipping agent with water, be actually the CO that generates with water and isocyanate reaction
2Gas is made whipping agent, so water is the most attractive final surrogate of CFC-11.
In the prior art, have much with the solar energy thermal insulation material of water as whipping agent, but there are a lot of shortcomings in full water foamed technology, and bad as the foam insulation performance, the system viscosity is too big, and is mobile bad, CO
2Spread too soon, foam size stability is bad, is restricting applying of full water foamed technology.
Summary of the invention
In order to overcome the above problems, it is good to the invention provides a kind of foam insulation performance, and full aqueous systems viscosity is little, mobile good, the sun power polyurethane foam heat insulation material of foam size good stability.
The present invention is achieved by the following measures:
A kind of sun power polyurethane heat insulation material, mix with weight ratio 1.294:1 and obtain by A component and B component, described A component is the MDI of 30-32wt% for NCO content, and described B component is full water combined polyether, and described full water combined polyether is made up of the component of following weight part:
Biological poly ethoxylated polyhydric alcohol 25-30 part,
Deionized water 2.5-4 part,
Sorbyl alcohol polyethers 35-38 part,
Sucrose polyethers 28-30 part,
Foam stabilizer 2-2.3 part,
Catalyzer 2.7-3 part,
Described biological poly ethoxylated polyhydric alcohol molecular weight distribution is 1000 ~ 1200, and hydroxyl value is 490mgKOH/g, and 25 ℃ of viscositys are 3600mPas, and described foam stabilizer is polyether-modified organopolysiloxane, and described catalyzer is N, the N-dimethylcyclohexylamine.
Described sun power polyurethane heat insulation material, be to adopt following steps to obtain: each component in the B component is extracted into little batch can from charging basket mixes and obtain the B component, the temperature of A component and B component is controlled to be 23-25 ℃, A component and B component are after high velocity impact mixes in High Pressure Gun, be filled in the cavity of solar water container and foam, through can not destroyed the sun power polyurethane heat insulation material of atmospheric ozone layer behind the hot setting, the material feeding pressure of two components is 110-130bar, the little 6bar of material feeding pressure ratio B component material feeding pressure of A component.
Employed biological poly ethoxylated polyhydric alcohol has lower viscosity, higher molecular weight, and molecular weight distribution is more even, higher functionality is done main body with this polyethers, the foam size good stability of generation, it is little to have viscosity, and the cohesiveness of good fluidity, foam surface and base material is good.
The invention has the beneficial effects as follows:
(1) foam materials preparation process technology of the present invention is simple, easy to operate, and environmental protection, ozone layer destroying effect ODP value is zero, has no side effect, and full bubble foam preparation technology is easy, requirement to equipment is very low, can continue to use the equipment of CFC-11 or HCFC-141b system;
(2) show through a large amount of experiments, the biological poly ethoxylated polyhydric alcohol has particular performances in full water foamed, the lagging material of making does not have phenomenons such as contraction, distortion, expansion when normal temperature, 100 ℃ of high temperature, low temperature-25 ℃, the dimensional stability height, its intensity height in addition, fragility is little, and thermal conductivity is low, can reach the foaming effect of HCFC in the foam application process of solar water heater;
(3) production method of the present invention is simple, raw material storage safety, and raw material carrying of avoiding and volatility of raw material, dissipation etc. can realize automatic continuous production.
Embodiment
Embodiment 1
The A component is the MDI of 30wt% for NCO content,
The B component is full water combined polyether, is made up of the component of following weight part:
25 parts of biological poly ethoxylated polyhydric alcohols,
2.5 parts of deionized waters,
35 parts of sorbyl alcohol polyethers,
28 parts of sucrose polyethers,
2 parts of polyether-modified organopolysiloxanes,
N, 2.7 parts of N-dimethylcyclohexylamines,
Described biological poly ethoxylated polyhydric alcohol molecular weight distribution is 1000 ~ 1200, and hydroxyl value is 490mgKOH/g, and 25 ℃ of viscositys are 3600mPas.
Preparation method: each component in the B component is extracted into little batch can from charging basket mixes and obtain the B component, the temperature of A component and B component is controlled to be 23-25 ℃, A component and B component are after high velocity impact mixes in High Pressure Gun, be filled in the cavity of solar water container and foam, through can not destroyed the solar energy thermal insulation material of atmospheric ozone layer behind the hot setting, the material feeding pressure of two components is 110-130bar, the little 6bar of material feeding pressure ratio B component material feeding pressure of A component, the material of A, B component is than being 1.294:1.
Embodiment 2
The A component is the MDI of 32wt% for NCO content,
The B component is full water combined polyether, is made up of the component of following weight part:
30 parts of biological poly ethoxylated polyhydric alcohols,
4 parts of deionized waters,
38 parts of sorbyl alcohol polyethers,
30 parts of sucrose polyethers,
2.3 parts of polyether-modified organopolysiloxanes,
N, 3 parts of N-dimethylcyclohexylamines,
Described biological poly ethoxylated polyhydric alcohol molecular weight distribution is 1000 ~ 1200, and hydroxyl value is 490mgKOH/g, and 25 ℃ of viscositys are 3600mPas.
Preparation method: each component in the B component is extracted into little batch can from charging basket mixes and obtain the B component, the temperature of A component and B component is controlled to be 23-25 ℃, A component and B component are after high velocity impact mixes in High Pressure Gun, be filled in the cavity of solar water container and foam, through can not destroyed the solar energy thermal insulation material of atmospheric ozone layer behind the hot setting, the material feeding pressure of two components is 110-130bar, the little 6bar of material feeding pressure ratio B component material feeding pressure of A component, the material of A, B component is than being 1.294:1.
Performance test
In casing, make sun power polyurethane heat insulation material of the present invention under foaming and two kinds of situations of free foaming, measure thermal conductivity, rate of closed hole, water-intake rate and the compressive strength of the sun power polyurethane heat insulation material that makes according to the building material industry standard JC/T-2006 of the People's Republic of China (PRC).
Carry out low-temperature test, at first under-25 ℃ of temperature freezing 48 hours, observe the water tank spot and change the size up velocity of variation; Under 100 ℃, scorch 48 hours then, observe the water tank spot and change the size up velocity of variation.
Report by Jiangsu Supervision and Inspection Institute for Product Quality sees Table 1.
Table 1 sun power polyurethane heat insulation material of the present invention performance table
| Project | Free foaming | Foam box |
| Density kg/m 3 | 31 | 35-42 |
| Size changing rate, (100 ℃ * 48h) % | 0.8 | 0.4 |
| Size changing rate, (25 ℃ * 48h) % | 0.6 | 0.2 |
| Thermal conductivity, W/ (mK) | 0.018 | 0.011 |
| Rate of closed hole, % | 95 | 98 |
| Water-intake rate %, % | 2.4 | 1.0 |
| Compressive strength, kPa | 150 | 217 |
From freely steep each parameter, freely steep density, freely steep effect behind cohesiveness, casing density and the water tank foaming of loss, urethane material and aluminium plating zinc plate, the process industrial art performance of sun power polyurethane heat insulation material of the present invention is good, leaving standstill in the process at the foaming rear water box and to take off outside not having, the aperture outward appearance is good, outside freezing rear water box has, do not take off, do not have and expect to split, collapse the bubble phenomenon.Sun power hard polyurethane foam advantage of the present invention: when subzero 25 ℃ of normal temperature, 100 ℃ of high temperature, low temperature, do not have phenomenons such as contraction, distortion, expansion, dimensional stability is higher, its compressive strength height in addition, and fragility is little, thermal conductivity is low, is a kind of lagging material of excellent performance.
Claims (2)
1. sun power polyurethane heat insulation material, it is characterized in that mixing with weight ratio 1.294:1 and obtaining by A component and B component, described A component is the MDI of 30-32wt% for NCO content, and described B component is full water combined polyether, and described full water combined polyether is made up of the component of following weight part:
Biological poly ethoxylated polyhydric alcohol 25-30 part,
Deionized water 2.5-4 part,
Sorbyl alcohol polyethers 35-38 part,
Sucrose polyethers 28-30 part,
Foam stabilizer 2-2.3 part,
Catalyzer 2.7-3 part,
Described biological poly ethoxylated polyhydric alcohol molecular weight distribution is 1000 ~ 1200, and hydroxyl value is 490mgKOH/g, and 25 ℃ of viscositys are 3600mPas, and described foam stabilizer is polyether-modified organopolysiloxane, and described catalyzer is N, the N-dimethylcyclohexylamine.
2. sun power polyurethane heat insulation material according to claim 1, it is characterized in that adopting following steps to obtain: each component in the B component is extracted into little batch can from charging basket mixes and obtain the B component, the temperature of A component and B component is controlled to be 23-25 ℃, A component and B component are after high velocity impact mixes in High Pressure Gun, be filled in the cavity of solar water container and foam, through can not destroyed the sun power polyurethane heat insulation material of atmospheric ozone layer behind the hot setting, the material feeding pressure of two components is 110-130bar, the little 6bar of material feeding pressure ratio B component material feeding pressure of A component.
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| CN 201110142706 CN102229697B (en) | 2011-05-31 | 2011-05-31 | Solar polyurethane thermal insulation material |
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| CN 201110142706 CN102229697B (en) | 2011-05-31 | 2011-05-31 | Solar polyurethane thermal insulation material |
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| CN102229697A true CN102229697A (en) | 2011-11-02 |
| CN102229697B CN102229697B (en) | 2013-02-27 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532460A (en) * | 2011-12-14 | 2012-07-04 | 浙江华峰新材料股份有限公司 | Bio-based polyurethane microporous elastomer, preparation method and application thereof |
| CN102532452A (en) * | 2011-12-19 | 2012-07-04 | 上海东大聚氨酯有限公司 | All-water combined polyether and use method thereof |
| CN102942671A (en) * | 2012-12-03 | 2013-02-27 | 山东东大一诺威新材料有限公司 | External thermal-insulation environment-friendly composite polyether for delivering high-temperature media and preparation method thereof |
| CN103739808A (en) * | 2013-12-27 | 2014-04-23 | 广西吉顺能源科技有限公司 | Polyurethane thermal-insulation material and preparation method thereof |
| 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 |
| CN107033313A (en) * | 2016-12-05 | 2017-08-11 | 上海东大聚氨酯有限公司 | A kind of combined polyether, polyurethane raw material composition and its application |
| CN107619464A (en) * | 2017-09-26 | 2018-01-23 | 南宁可煜能源科技有限公司 | Solar insulated water tank polyurethane composite thermal insulation material |
| CN109251513A (en) * | 2018-09-17 | 2019-01-22 | 深圳市心版图科技有限公司 | A kind of polyurethane foamed material and its processing method of counter infrared ray radiation |
| JP2019156931A (en) * | 2018-03-09 | 2019-09-19 | 株式会社カネカ | Heat-insulation material and method for producing the same |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532460A (en) * | 2011-12-14 | 2012-07-04 | 浙江华峰新材料股份有限公司 | Bio-based polyurethane microporous elastomer, preparation method and application thereof |
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| CN102532452A (en) * | 2011-12-19 | 2012-07-04 | 上海东大聚氨酯有限公司 | All-water combined polyether and use method thereof |
| CN102942671B (en) * | 2012-12-03 | 2014-11-05 | 山东一诺威新材料有限公司 | External thermal-insulation environment-friendly composite polyether for delivering high-temperature media and preparation method thereof |
| CN102942671A (en) * | 2012-12-03 | 2013-02-27 | 山东东大一诺威新材料有限公司 | External thermal-insulation environment-friendly composite polyether for delivering high-temperature media and preparation method thereof |
| CN103739808A (en) * | 2013-12-27 | 2014-04-23 | 广西吉顺能源科技有限公司 | Polyurethane thermal-insulation material and preparation method thereof |
| 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 |
| CN107033313A (en) * | 2016-12-05 | 2017-08-11 | 上海东大聚氨酯有限公司 | A kind of combined polyether, polyurethane raw material composition and its application |
| CN107619464A (en) * | 2017-09-26 | 2018-01-23 | 南宁可煜能源科技有限公司 | Solar insulated water tank polyurethane composite thermal insulation material |
| JP2019156931A (en) * | 2018-03-09 | 2019-09-19 | 株式会社カネカ | Heat-insulation material and method for producing the same |
| JP7053315B2 (en) | 2018-03-09 | 2022-04-12 | 株式会社カネカ | Insulation material and manufacturing method of insulation material |
| CN109251513A (en) * | 2018-09-17 | 2019-01-22 | 深圳市心版图科技有限公司 | A kind of polyurethane foamed material and its processing method of counter infrared ray radiation |
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