CN103333308B - Solar water heater water tank perlite foaming thermal-insulating - Google Patents
Solar water heater water tank perlite foaming thermal-insulating Download PDFInfo
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- CN103333308B CN103333308B CN201310294700.1A CN201310294700A CN103333308B CN 103333308 B CN103333308 B CN 103333308B CN 201310294700 A CN201310294700 A CN 201310294700A CN 103333308 B CN103333308 B CN 103333308B
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- 239000010451 perlite Substances 0.000 title claims abstract description 20
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- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 10
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 7
- 235000011187 glycerol Nutrition 0.000 claims description 7
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- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 239000003381 stabilizer Substances 0.000 claims description 7
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 7
- 239000006261 foam material Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229920001228 polyisocyanate Polymers 0.000 claims description 4
- 239000005056 polyisocyanate Substances 0.000 claims description 4
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 101100434045 Danio rerio acp7 gene Proteins 0.000 claims 1
- 101100434047 Mus musculus Acp7 gene Proteins 0.000 claims 1
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
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- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 4
- 210000002421 cell wall Anatomy 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
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- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
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- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- UXLBXTIBYMXRNX-UHFFFAOYSA-N 2-o-(8-methylnonyl) 1-o-octyl benzene-1,2-dicarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C UXLBXTIBYMXRNX-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
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- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 1
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- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to solar water heater water tank polyurethane hard foam lagging material technical field, more particularly relate to a kind of solar water heater water tank perlite foaming thermal-insulating.Technical scheme of the present invention is: it is obtained by isocyanic ester and polyether composition mixed foaming, described polyether composition contains the main raw materials such as combined polyether, dme, chitosan, pearlstone, this polyurethane hard foam lagging material overcomes the large shortcoming of foaming post shrinkage, avoid water tank to be out of shape, rise and heave the stupefied phenomenon even ftractureed, and ensure that the heat-insulating property of water-heater water tank.
Description
Technical field
The present invention relates to polyurethane heat insulation material technical field, more particularly relate to a kind of polyurethane hard foam lagging material being applied to solar water heater water tank insulation.
Background technology
The continuous increase of and environmental protection pressure day by day in short supply along with the energy, countries in the world all start to try hard to recommend exploitation renewable energy source, wherein sun power is utilize and develop the renewable energy source the widest, development prospect is best, and be now widely used in all trades and professions, solar water heater industry is exactly one of them.China is richly stored with solar energy resources, and Solar use has a extensive future, and has been that first of solar water heater in the world uses state and producing country at present.
As everyone knows, concerning solar water heater, the selection of water tank heat preserving material is vital, and the lagging material that can be used as water tank at present mainly contains polyurethane foam, phenol formaldehyde foam, ultra-fine fibre etc.Polyurethane foam be by isocyanic ester to mix with polyether composition being poured in mould or water tank cavity foam obtained, wherein polyether composition contains polyether glycol, whipping agent, catalyzer, solidifying agent, fire retardant, stablizer etc., because polyurethane foam has the advantages such as moulding process is simple, thermal conductivity is low, it is the lagging material that water tank mainly adopts.
Polyurethane hard foam industry is in development process, and the selection of whipping agent is the focus of the sector one research.The early stage main whipping agent adopted is CFC-11(Trichloromonofluoromethane), but because of its CFC-11 havoc atmospheric ozone layer distributed, forbidden adopting by countries in the world.At present, apply more whipping agent to mainly contain: HCFC(Hydrochlorofluorocarbons), HFC(hydrogen fluorohydrocarbon), HC(alkane), CO
2or water.HCFC is because of its ODP(ozone depletion value) be less than CFC-11, be taken as the first-generation substitute products of CFC class whipping agent, temporarily use within excessive period, but it still have destructiveness to atmospheric ozone layer, now prohibited use by various countries gradually.The ODP value of HFC and HC class whipping agent is 0, alternative CFC class whipping agent, but it is inflammable, and production operation is inconvenient.Adopt CO
2whipping agent, or the CO utilizing isocyanic ester and water reaction to produce
2(Water blown) as whipping agent, have nontoxic, safe, there is not recycling problem and do not need the advantage of invest in the transformation of real estate foaming machine, be current a kind of more satisfactory whipping agent, such as document (Chinese invention patent; The patent No.: CN200910199487.X; Patent name: a kind of all-water combined polyether and using method, hard polyurethane foam composition; Applicant: Shanghai Dongda Polyurethane Co., Ltd) just disclose a kind of all-water combined polyether and the polyurethane hard foam utilizing Water blown to produce.
Polyurethane hard foam in process of production, because of the reason of each side such as itself characteristic, production technique and direct labor's operating skill, the problem of ubiquity foam contraction, foam and housing parts is easily caused to come off or all come off, finally cause casing deformation, vacuum mouth of pipe foam ftractures, and What is more, polyurethane hard foam transverse direction between inner bag and shell or longitudinal cracking, greatly reduce the heat insulation effect of water tank.Its contractile mechanism is mainly:
1, the formation of polyurethane hard foam need experience foaming process and two stages of maturing process.Expand from mixing of materials to lather volume and stop this process to be called foaming process, foaming process terminates until the reaction of foam system internal chemical terminates, and foams reach this process of final strength and are called maturing process.In foaming process, system releases a large amount of reaction heat, and reaction heat makes whipping agent vaporize and enters foams formation abscess and constantly expansion, and at this moment each abscess is subject to the effect of external pressure barometric point and interior Hair Fixer infusion bulging force.When pressure in abscess is greater than external pressure, the volume of foaming system just constantly expands; When external and internal pressure is equal, foams are reflation not.Lather volume expands and stops indicating the beginning of maturing process.In maturing process, foams no longer release reaction heat, and temperature slowly reduces (finally can be down to envrionment temperature), and at this moment abscess internal pressure also reduces, and produce inside and outside differential pressure.The formation of pressure reduction on foams produces certain impact: if the intensity of cell wall is enough to support pressure reduction, then obvious distortion can not occur foams; If cell wall intensity is more weak, then foams shrink under differential pressure action.This shrinkage phenomenon represents with " molding shrinkage " usually, generally below 1%, can reach 5% time serious, even larger.
2, current, solar water heater is adopt one or many cast free foaming to form, to be repeatedly cast for master with polyurethane hard foam foam process.Polyurethane hard foam in process of production, raw materials for production must at gelation time (when preparing macromolecular material, its reaction system viscosity increases with high molecular chainpropagation, when molecular chain starts to form network structure, viscosity can increase suddenly suddenly, this viscosity starts the rapid point increased and is called gelation point, the time that gelation point is corresponding is called gelation time) arrive before fill up foaming space (mould or water tank cavity in) completely, after gelation time, although lather volume still expands in continuation, but the foam formed, its feel is soft, abscess will obviously elongate, severe patient can in threadiness, its physical and mechanical properties is very poor, this area is referred to as " bad foam ".The foam pattern repeatedly poured into a mould is many because of processing step, needs the longer time to fill up completely, and this " bad foam " proportion is increased.Moreover the intersection foam that adjacent twice cast is formed, because of the difference of shrinking percentage, when catching a cold, easily cause foam to ftracture.
3, due to other reasonses such as production operation workman state of the art are low, production facility is poor, production technique is lack of standardization, cause the proportioning raw materials not operation lack of standardization such as science or incomplete mixing, have a strong impact on the use properties of polyurethane hard foam.
Therefore, many polyurethane hard foam manufacturers adopt to increase polyurethane hard foam insulation layer thickness or improve the modes such as filled and process density and solve, but thicken hard polyurethane foam foam layer and add water tank outer volume and material usage, cost is higher, and improve filled and process density and can increase product weight and thermal conductivity, more harm than good, be not desirable settling mode.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of solar water heater polyurethane hard foam lagging material of improvement, this material overcomes the large shortcoming of foaming post shrinkage, avoid water tank to be out of shape, rise and heave the stupefied phenomenon even ftractureed, and ensure that the heat-insulating property of water-heater water tank.
The present invention is achieved by the following technical solutions:
Solar water heater water tank perlite foaming thermal-insulating, obtained by cyanate and polyether composition mixed foaming, wherein polyether composition comprises the component of following parts by weight:
A kind of solar water heater water tank perlite foaming thermal-insulating, obtained by isocyanic ester and polyether composition mixed foaming, described polyether composition comprises the component of following parts by weight:
Combined polyether 70 ~ 90 parts;
Dme 3 ~ 6 parts;
Chitosan 3 ~ 6 parts;
Pearlstone 5 ~ 8 parts;
Namely described polyether composition and isocyanic ester obtain described polyurethane hard foam lagging material for after 1:1 ~ 1:1.4 mixed foaming in mass ratio.
The present invention's isocyanic ester used mainly contains tolylene diisocyanate (TDI), diphenylmethanediisocyanate (MDI), polymethine polyphenyl polyisocyanate (PAPI) etc. and does other aliphatics of special purpose and aromatic organic isocyanate on a small quantity.
Combined polyether of the present invention is all-water combined polyether, can adopt the product that market is bought, or adopts the main raw material of following parts by weight to be mixed:
Glycerin polyether resin 5 ~ 7 parts, glycol ether resin 3 ~ 5 parts, suds-stabilizing agent water-soluble silicon oil 0.2 ~ 0.3 part, catalyst n, N-dimethyl cyclohexyl amine 0.2 ~ 0.4 part, solidifying agent dibutyl tin laurate 0.1 ~ 0.3 part, 0.2 ~ 0.4 part, deionized water water
The product that market is bought, can be domestic or external, there is a lot of family in current domestic manufacturer, such as: the sun power combined polyether product (address: No. 307, Shan Ning road, adret town, Discharge Engineering in Shanghai Jinshan District of Shanghai Dongda Polyurethane Co., Ltd, network address: http://www.sh-dongda.com/products.asp), Luoyang, Changzhou Wujin heat insulating material factory (HT-03 sun power combined polyether etc., address: Yao Guanqiaonan industrial park, Changzhou Wujin, Jiangsu Province, network address: http://czswjlyx.cn.china.cn); The rigid-foam polyether product of Desheng, Langfang urethane company limited; (industrial park, large Guangan, Dacheng County, Hebei province network address: http://www.desheng-pu.com/cp/ypjmdyc/32.html), or, adopt Huizhou foaming king Products Co., Ltd address: Huizhou Boluo County Changning Zhen Ling arranges manufacturing district, network address: http://www.coolyuan.com/ProductShow.asp ID=682, Deng, as long as can use for the aerial fog type polyethers foam material of current solar water heater water tank.
Described chitosan is molecular weight l0 ten thousand to 100 ten thousand, uses the acetic acid of front l-3%.
Described pearlstone has the structure of hollow hole, and its particle diameter is between 10-100 nanometer.
Dme (DME) is a kind of colourless gas or compressed liquid at normal temperatures and pressures, has inertia, non-corrosiveness, non-carcinogenesis, also has excellent compatibility, soluble in water, can with most of polarity and non-polar organic solvent miscible; Boiling point is low, inflammable, but can obtain the characteristic of high boiling point and incombustible after mixing with water; Stable chemical nature, can standing storage and do not decompose or transform, and the life-span in atmospheric layer is very short, about about 10 days, can be degraded to carbonic acid gas and water, and ODP value is 0, thus can not cause environmental pollution and damage the ozone layer.During owing to using water as in prior art as whipping agent, there is the low defect of foamy body in polyurethane hard foam, Some Enterprises solves the problems referred to above by the consumption or raising foam density improving isocyanate material, and this will cause production cost to raise, and hinders the popularization of full water foamed technology.The characteristic that dme can dissolve each other with water makes it be easy to in full water foamed technology, contributes to improving that full water foamed polyurethane hard foam intensity is low, the defect of poor stability, heat insulating ability difference, and can reduce isocyanic ester consumption; In addition, due to low viscosity and the characteristic of low surface tension of dme, for can significantly reduce system viscosity in full water foamed system, and improve each component mixing property in system, shaping foaming thermal-insulating hole bubble is evenly distributed, and heat-insulating property is stablized; The mutual solubility of dme and polyether glycol is conducive to the bubbling efficiency and the dimensional stability that improve polyurethane hard foam simultaneously; Add that dme price is low, wide advantage of originating, it can be used for the production of various polyurethane hard foam as frothing aid, and effectively can improve the use properties of polyurethane hard foam.
Above-described chitosan is the low-molecular-weight chitosan of molecular weight (polymerization degree) 10 ten thousand to 100 ten thousand, use the acetic acid of front l-3%, add low-molecular-weight chitosan, the polyethers material after foaming can be made to have the hole be interconnected, and also have aperture between large hole wall, chitosan is adsorbed on internal surface of hole, the abscess produced is not easy to vanish, aperture can also be made to increase, thus the rate of expansion of polyethers material is improved, heat insulation effect significantly improves.
Pearlstone is that one has high performance inorganic light weight thermal insulation material, density little (70 ~ 250kg/m3), use temperature scope Wei – 200 ~ 800 DEG C, the thermal conductivity of temperature within the scope of 0 ~ 100 DEG C is 0.024 ~ 0.058w/(mk), have thermal conductivity low, nontoxic, tasteless, be stale-proof, the advantage of fire-retardant, sound-absorbing, can be used as high-efficiency insulated, cold insulation packing material.Its producing principle is that perlite ore forms the ore in sand form of certain particle size through fragmentation, a kind of inside of making after preheating, TRANSIENT HIGH TEMPERATURE calcining expansion is again the material of the white granular of polynuclear plane, is divided into open bore, closed pore, hollow hole three kinds of forms according to its expansion process technology and purposes difference.What the present invention adopted is the hollow hole pearlstone of particle diameter (particle diameter) below 100 nanometers, and record in test, pearlstone can be suitable the percentage of open area of increase polyurethane hard foam, and foamable gel and curing speed can be delayed, prevent foam from greatly and easily extruding inner bag and outer wall because of short period of time inner accumulated strength, reduce the generation of " bad foam ", reduce simultaneously foam-formed after shrinking percentage.
Solar water heater water tank perlite foaming thermal-insulating of the present invention may be used for solar water heater, water tank heat preserving material or the buildings aspect such as warehouse, cinema.
The mechanism of action that the present invention effectively can solve prior art deficiency is:
The performance of polyurethane hard foam material is described with main raw parameters such as thermal conductivity, density, closed pore and percentage of open area, abscess features.The thermal conductivity of polyurethane foamed material is all lower than other lagging materials, and therefore from heat-proof quality, polyurethane foamed material is optimal lagging material.Density is an important parameter of polyurethane foamed material, the thermal conductivity of polyurethane foamed material can raise with the increase of its density, and solar water heater is non-bearing equipment, and polyurethane foam mainly plays insulation effect, therefore density domination is in optimum value, is generally 35kg/m
3left and right.The hole bubble of hard polyurethane foam have closed pore and perforate point, rate of closed hole is higher, and its heat-insulating property is better, and percentage of open area is higher, and its foam-formed post-shrinkage ratio is lower.Abscess feature comprises the features such as cell diameter, abscess length, foam structure and distribution of cells, and these features all affect the heat-insulating property of polyurethane foamed material.
Because natural all things on earth all has the characteristic of expanding with heat and contract with cold, the foam contraction of solar water heater is ubiquitous problem, namely molding shrinkage can not be zero, this area is referred to as " normal contraction ", but molding shrinkage controls within 1% by the foam process that the production formula by adjusting foaming raw material is aided with science again, even can ignore." the bad foam " that cause because of factors such as technique, composition of raw materials, operations or macrofiber shape abscess then can have a strong impact on the performance of foam, make foam contraction rate improve and reduce heat-insulating property.Increase polyurethane hard foam insulation layer thickness as stated in the Background Art or raising filled and process density are not desirable settling mode.Also have part producer by adding pore-creating agent in foaming raw material simultaneously, thus reduce foam-formed shrinking percentage, but the foam thermal insulation performance formed reduces greatly.
The present invention adds raw material dme, chitosan, hollow hole pearlstone on the basis of foaming component all-water combined polyether, spherical or the oval spherical and fine and closely woven abscess that is evenly distributed of formation of foam can be made, foam material heat-insulating property is stablized, and increase the intensity of cell wall, because of the Material compression phenomenon of inside and outside differential pressure appearance when reducing foam-formed, increase the percentage of open area of foam simultaneously suitably, reduce foam-formed after shrinking percentage.
Compared with prior art, polyurethane hard foam lagging material of the present invention is except possessing conventional polyurethanes foam materials high heat preservation performance, also reduce the foam contraction problem because each side reasons such as itself characteristic, production technique and direct labor's operating skill cause, avoid water tank to be out of shape, rise and heave the stupefied phenomenon even ftractureed.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to the scope that embodiment represents.
embodiment 1
5 parts of glycerin polyether resins are taken by mass fraction, 5 parts of glycol ether resins, 0.2 part of suds-stabilizing agent water-soluble silicon oil, 0.2 part of catalyst n, N-dimethylcyclohexylamine, 0.3 part of solidifying agent dibutyl tin laurate, 0.2 part of water, raw material all-water combined polyether is formed after mixing, then 3 kilograms of dme are added according to 80 kilograms of all-water combined polyethers, 2 kilograms of chitosan (molecular weight l0 ten thousand to 100 ten thousand, use the acetic acid of front l-3%) and 7 kilograms of centre hole pearlstones, mix formation polyether composition, then with isocyanic ester in mass ratio 1:1.4 mix to be poured in solar water heater water tank cavity and foam, solar water heater water tank perlite foaming thermal-insulating layer of the present invention can be obtained after hot setting.
embodiment 2
6 parts of glycerin polyether resins are taken by mass fraction, 4 parts of glycol ether resins, 0.3 part of suds-stabilizing agent water-soluble silicon oil, 0.3 part of catalyst n, N-dimethylcyclohexylamine, 0.2 part of solidifying agent dibutyl tin laurate, 0.3 part of water, raw material all-water combined polyether is formed after mixing, then 4 kilograms of dme are added according to 80 kilograms of all-water combined polyethers, 3 kilograms of chitosan (molecular weight l0 ten thousand to 100 ten thousand, use the acetic acid of front l-3%) and centre hole pearlstone 8 kilograms, mix formation polyether composition, then with tolylene diisocyanate (TDI) in mass ratio 1:1.3 mix to be poured in solar water heater water tank cavity and foam, solar water heater water tank perlite foaming thermal-insulating layer of the present invention can be obtained after hot setting.
embodiment 3
The special rigid-foam polyether product of the sun power selecting Desheng, Langfang urethane company limited to produce; 80 kilograms of polyether glycols add 3 kilograms of dme, 4 kilograms of chitosan (molecular weight l0 ten thousand to 100 ten thousand, use the acetic acid of front l-3%) and 7 kilograms of centre hole pearlstones, mix formation polyether composition, then with polymethine polyphenyl polyisocyanate (PAPI) in mass ratio 1:1.4 mix to be poured in solar water heater water tank cavity and foam, polyurethane hard foam adiabator layer of the present invention can be obtained after hot setting.
embodiment 4
7 parts of glycerin polyether resins are taken by mass fraction, 3 parts of glycol ether resins, 0.2 part of suds-stabilizing agent water-soluble silicon oil, 0.4 part of catalyst n, N-dimethylcyclohexylamine, 0.1 part of solidifying agent dibutyl tin laurate, 0.3 part of water, raw material all-water combined polyether is formed after mixing, then 5 kilograms of dme are added according to 80 kilograms of all-water combined polyethers, 6 kilograms of chitosan (molecular weight l0 ten thousand to 100 ten thousand, use the acetic acid of front l-3%) and 5 kilograms of centre hole pearlstones, mix formation polyether composition, then with diphenylmethanediisocyanate (MDI) in mass ratio 1:1.2 mix to be poured in solar water heater water tank cavity and foam, solar water heater water tank perlite foaming thermal-insulating layer of the present invention can be obtained after hot setting.
embodiment 5
Get the HT-03 sun power combined polyether product of Luoyang, Changzhou Wujin heat insulating material factory, 4 kilograms of dme are added according to 90 kilograms of combined polyethers, 3 kilograms of chitosan (molecular weight l0 ten thousand to 100 ten thousand, use the acetic acid of front l-3%) and centre hole pearlstone 8 kilograms, mix formation polyether composition, then with tolylene diisocyanate (TDI) in mass ratio 1:1.3 mix to be poured in solar water heater water tank cavity and foam, solar water heater water tank perlite foaming thermal-insulating layer of the present invention can be obtained after hot setting.
embodiment 6
7 parts of glycerin polyether resins are taken by mass fraction, 3 parts of glycol ether resins, 0.2 part of suds-stabilizing agent water-soluble silicon oil, 0.3 part of catalyst n, N-dimethylcyclohexylamine, 0.1 part of solidifying agent dibutyl tin laurate, 0.4 part of water, raw material all-water combined polyether is formed after mixing, then 6 kilograms of dme are added according to 80 kilograms of all-water combined polyethers, 5 kilograms of chitosan (molecular weight l0 ten thousand to 100 ten thousand, use the acetic acid of front l-3%) and 6 kilograms of centre hole pearlstones, mix formation polyether composition, then with diphenylmethanediisocyanate (MDI) in mass ratio 1:1.1 mix to be poured in solar water heater water tank cavity and foam, solar water heater water tank perlite foaming thermal-insulating layer of the present invention can be obtained after hot setting.
embodiment 7
7 parts of glycerin polyether resins are taken by mass fraction, 3 parts of glycol ether resins, 0.3 part of suds-stabilizing agent water-soluble silicon oil, 0.2 part of catalyst n, N-dimethylcyclohexylamine, 0.1 part of solidifying agent dibutyl tin laurate, 0.3 part of water, raw material all-water combined polyether is formed after mixing, then 6 kilograms of dme are added according to 80 kilograms of all-water combined polyethers, 5 kilograms of chitosan (molecular weight l0 ten thousand to 100 ten thousand, use the acetic acid of front l-3%) and 6 kilograms of centre hole pearlstones, mix formation polyether composition, then with polymethine polyphenyl polyisocyanate (PAPI) in mass ratio 1:1 mix to be poured in solar water heater water tank cavity and foam, solar water heater water tank perlite foaming thermal-insulating layer of the present invention can be obtained after hot setting.
embodiment 8
Adopt the combined polyether of Huizhou foaming king Products Co., Ltd, then 6 kilograms of dme, 5 kilograms of chitosan (molecular weight l0 ten thousand to 100 ten thousand are added according to 70 kilograms of all-water combined polyethers, use the acetic acid of front l-3%) and 6 kilograms of centre hole pearlstones, mix formation polyether composition, then with diphenylmethanediisocyanate (MDI) in mass ratio 1:1 mix to be poured in solar water heater water tank cavity and foam, solar water heater water tank perlite foaming thermal-insulating layer of the present invention can be obtained after hot setting.
application test
For more fully setting forth beneficial effect of the present invention, the applicant has manufactured 2 solar water heaters, and carry out a testing experiment, wherein a solar water heater water tank adopts the polyurethane foam raw material of company of the Zhejiang Province production that market is bought as lagging material (control group), and another adopts solar water heater water tank perlite foaming thermal-insulating (experimental group) of the present invention.Under cloudy weather (temperature 18-25 DEG C) condition, the highest water temperature of control group reaches 70 DEG C, and the highest water temperature of experimental group reaches 80 DEG C, and this illustrates that solar water heater water tank perlite foaming thermal-insulating heat insulation effect of the present invention is better.
Take out the moulded foam of control group and experimental group respectively and detect its performance perameter, performance index are as following table:
| Test item | Control group | Experimental group |
| Density (kg/m 3） | 35 | 35 |
| Rate of closed hole (%) | ≥95 | ≥92 |
| Water-intake rate (%) | 1.5 | 1.0 |
| Thermal conductivity (W/mk) | ≤0.025 | ≤0.022 |
| Compressive strength (kPa) | ≥150 | ≥200 |
| Dimensional stability (100 DEG C, 24h) | ≤0.6 | ≤0.4 |
| Dimensional stability (-25 DEG C, 24h) | ≤0.4 | ≤0.2 |
| Molding shrinkage (%) | ≤1.1 | ≤0.3 |
From table, the index such as compressive strength, molding shrinkage, dimensional stability of solar water heater water tank perlite foaming thermal-insulating of the present invention all has than existing lagging material and improves significantly, the phenomenon such as ungauged regions, distortion, expansion, cracking under freezing or hot conditions is a kind of lagging material of excellent performance.
To the solar water heater water tank perlite foaming thermal-insulating made with the present invention, measure its foaming properties, obtain following data:
Claims (2)
1. a solar water heater water tank perlite foaming thermal-insulating, is obtained by component isocyanic ester and polyether composition mixed foaming, it is characterized in that: described polyether composition is made up of the component of following parts by weight:
Combined polyether 70 ~ 90 parts;
Dme 3 ~ 6 parts;
Chitosan 3 ~ 6 parts;
Pearlstone 5 ~ 8 parts;
Namely described polyether composition and isocyanic ester obtain described polyurethane hard foam lagging material for after 1:1 ~ 1:1.4 mixed foaming in mass ratio;
Described combined polyether is all-water combined polyether, adopt market is bought, for the aerial fog type polyethers foam material of solar water heater water tank, or adopt the main raw material of following parts by weight to be mixed:
Glycerin polyether resin 5 ~ 7 parts, glycol ether resin 3 ~ 5 parts, suds-stabilizing agent water-soluble silicon oil 0.2 ~ 0.3 part, catalyst n, N-dimethyl cyclohexyl amine 0.2 ~ 0.4 part, solidifying agent dibutyl tin laurate 0.1 ~ 0.3 part, deionized water 0.2 ~ 0.4 part;
Described chitosan is molecular weight 10 ten thousand to 100 ten thousand, uses the acetic acid of front l-3%;
Described pearlstone has the structure of hollow hole, and its particle diameter is between 10-100 nanometer;
Described isocyanic ester selects tolylene diisocyanate (TDl), diphenylmethanediisocyanate (MDl) or polymethine polyphenyl polyisocyanate (PAPl).
2. the application of solar water heater water tank perlite foaming thermal-insulating in solar water heater, water tank heat preserving material or warehouse, cinema buildings according to claim l.
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| CN103756281B (en) * | 2013-11-26 | 2015-11-04 | 成都心海汇才生物科技有限公司 | A kind of lagging material and preparation method thereof |
| CN106279630A (en) * | 2016-08-25 | 2017-01-04 | 胡国旺 | Floride-free type polyurethane insulation material |
| CN107523042A (en) * | 2017-09-26 | 2017-12-29 | 广西吉宽太阳能设备有限公司 | One kind manufacture solar water container polyurethane heat insulation material |
| CN107778441A (en) * | 2017-11-21 | 2018-03-09 | 广西吉宽太阳能设备有限公司 | A kind of glycerol-glucose glucoside PPG insulation material |
| CN107778840A (en) * | 2017-11-21 | 2018-03-09 | 广西吉宽太阳能设备有限公司 | A kind of solar water heater water tank PPG cellular insulant |
| CN107880246A (en) * | 2017-11-21 | 2018-04-06 | 广西吉宽太阳能设备有限公司 | A kind of methylglucoside PPG insulation material |
| CN107814900A (en) * | 2017-11-21 | 2018-03-20 | 广西吉宽太阳能设备有限公司 | A kind of solar energy polyurethane heat insulation material and preparation method thereof |
| CN113213811A (en) * | 2021-05-29 | 2021-08-06 | 中州装备制造股份有限公司 | PU composite heat insulation material |
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| CN101696280A (en) * | 2009-10-23 | 2010-04-21 | 河南科达节能环保有限公司 | Process for foam moulding of fluorine-free polyurethane |
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| CN102633974A (en) * | 2012-04-17 | 2012-08-15 | 中南民族大学 | High-flame-retardance temperature preservation plate and preparation method thereof |
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| US5093377A (en) * | 1991-08-19 | 1992-03-03 | E. I. Du Pont De Nemours And Company | Blowing agent and process for preparing polyurethane foam |
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| CN101696280A (en) * | 2009-10-23 | 2010-04-21 | 河南科达节能环保有限公司 | Process for foam moulding of fluorine-free polyurethane |
| CN102516494A (en) * | 2011-12-15 | 2012-06-27 | 广西吉宽太阳能设备有限公司 | Foaming composition for water tank of solar water heater |
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Inventor after: Xie Gang Inventor after: Wei Qisi Inventor after: Liang Hongfang Inventor after: Lai Guangye Inventor after: Ma Zhaojian Inventor after: Mo Mingxin Inventor after: Huang Qiuhe Inventor after: Meng Xianfang Inventor after: Ma Fukuan Inventor after: Ma Lisha Inventor after: Meng Shengjie Inventor after: Meng Qiangjie Inventor after: Gan Weiping Inventor after: Ma Zhen Inventor after: Liang Zhijian Inventor before: Meng Xianfang Inventor before: Liang Hongfang Inventor before: Lai Guangye Inventor before: Ma Zhaojian Inventor before: Mo Mingxin Inventor before: Huang Qiuhe Inventor before: Ma Fukuan Inventor before: Ma Lisha Inventor before: Meng Shengjie Inventor before: Meng Qiangjie Inventor before: Gan Weiping Inventor before: Ma Zhen Inventor before: Liang Zhijian Inventor before: Wei Qisi |
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Free format text: CORRECT: INVENTOR; FROM: MENG XIANFANG MA FUKUAN MA LISHA MENG SHENGJIE MENG QIANGJIE GAN WEIPING MA ZHEN LIANG ZHIJIAN WEI QISI LIANG HONGFANG LAI GUANGYE MA ZHAOJIAN MO MINGXIN HUANG QIUHE TO: XIE GANG MENG XIANFANG MA FUKUAN MA LISHA MENG SHENGJIE MENG QIANGJIE GAN WEIPING MA ZHEN LIANG ZHIJIAN WEI QISI LIANG HONGFANG LAI GUANGYE MA ZHAOJIAN MO MINGXIN HUANG QIUHE |
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Address after: 545899 the Guangxi Zhuang Autonomous Region Laibin City Xiangzhou civilization Road No. 27 Patentee after: Guangxi Chaoxing Solar Energy Technology Co., Ltd. Address before: 530001 the Guangxi Zhuang Autonomous Region, Nanning, Anji Avenue, No. 47 - water Kang Hardware Electrical City, room, building 2, room A252 Patentee before: Guangxi Chaoxing Solar Energy Technology Co., Ltd. |
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Address after: 530001 Anji Avenue, 47 - 5, Nanning, the Guangxi Zhuang Autonomous Region, 2 floor, room A252, Shui Kang hardware and electrical machinery. Patentee after: Guangxi Chaoxing Solar Energy Technology Co., Ltd. Address before: 545899 27 civilized road, Xiangzhou County, Laibin City, the Guangxi Zhuang Autonomous Region Patentee before: Guangxi Chaoxing Solar Energy Technology Co., Ltd. |
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