CN102417340B - Gypsum-based phase change energy storage polymer thermal insulation mortar and preparation method thereof - Google Patents
Gypsum-based phase change energy storage polymer thermal insulation mortar and preparation method thereof Download PDFInfo
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- CN102417340B CN102417340B CN201110255227.7A CN201110255227A CN102417340B CN 102417340 B CN102417340 B CN 102417340B CN 201110255227 A CN201110255227 A CN 201110255227A CN 102417340 B CN102417340 B CN 102417340B
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- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 54
- 239000010440 gypsum Substances 0.000 title claims abstract description 54
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 48
- 238000009413 insulation Methods 0.000 title claims abstract description 42
- 238000004146 energy storage Methods 0.000 title claims abstract description 39
- 230000008859 change Effects 0.000 title claims abstract description 30
- 229920000642 polymer Polymers 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000012782 phase change material Substances 0.000 claims abstract description 46
- 239000000843 powder Substances 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000010881 fly ash Substances 0.000 claims abstract description 19
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 18
- 239000000194 fatty acid Substances 0.000 claims abstract description 18
- 229930195729 fatty acid Natural products 0.000 claims abstract description 18
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 18
- 239000004816 latex Substances 0.000 claims abstract description 18
- 229920000126 latex Polymers 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000002893 slag Substances 0.000 claims abstract description 16
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 12
- 239000011232 storage material Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 5
- 239000011707 mineral Substances 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims description 27
- 150000002632 lipids Chemical class 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 17
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 claims description 16
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 16
- 230000009466 transformation Effects 0.000 claims description 15
- 239000011324 bead Substances 0.000 claims description 14
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 13
- 238000006477 desulfuration reaction Methods 0.000 claims description 13
- 230000023556 desulfurization Effects 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 13
- 238000001354 calcination Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 claims description 8
- 239000005639 Lauric acid Substances 0.000 claims description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 8
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 8
- 229920001038 ethylene copolymer Polymers 0.000 claims description 8
- 229910000077 silane Inorganic materials 0.000 claims description 8
- 229920002554 vinyl polymer Polymers 0.000 claims description 8
- 239000001175 calcium sulphate Substances 0.000 claims description 6
- 235000011132 calcium sulphate Nutrition 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 6
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 239000001509 sodium citrate Substances 0.000 claims description 5
- -1 sulfonated melamine compound Chemical class 0.000 claims description 5
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical group [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims description 5
- 229940038773 trisodium citrate Drugs 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- CORTZJMILBLCKC-UHFFFAOYSA-N decanoic acid;dodecanoic acid Chemical compound CCCCCCCCCC(O)=O.CCCCCCCCCCCC(O)=O CORTZJMILBLCKC-UHFFFAOYSA-N 0.000 claims description 4
- 229920005646 polycarboxylate Polymers 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 claims description 3
- 235000019830 sodium polyphosphate Nutrition 0.000 claims description 3
- 229940095064 tartrate Drugs 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 2
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims description 2
- QHZOMAXECYYXGP-UHFFFAOYSA-N ethene;prop-2-enoic acid Chemical group C=C.OC(=O)C=C QHZOMAXECYYXGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 235000011004 sodium tartrates Nutrition 0.000 claims description 2
- 235000019263 trisodium citrate Nutrition 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims 1
- 239000001923 methylcellulose Substances 0.000 claims 1
- 235000010981 methylcellulose Nutrition 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 5
- 239000004005 microsphere Substances 0.000 abstract 2
- 230000002940 repellent Effects 0.000 abstract 2
- 239000005871 repellent Substances 0.000 abstract 2
- 239000002025 wood fiber Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 description 10
- 238000004513 sizing Methods 0.000 description 9
- 238000005303 weighing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000005338 heat storage Methods 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
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- YLGXILFCIXHCMC-JHGZEJCSSA-N methyl cellulose Chemical compound COC1C(OC)C(OC)C(COC)O[C@H]1O[C@H]1C(OC)C(OC)C(OC)OC1COC YLGXILFCIXHCMC-JHGZEJCSSA-N 0.000 description 3
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- 238000011160 research Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical group OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
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Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to gypsum-based phase change energy storage polymer thermal insulation mortar and a preparation method thereof, wherein the gypsum-based phase change energy storage polymer thermal insulation mortar comprises the following components in parts by weight: 20-30 parts of calcined desulfurized gypsum powder, 10-40 parts of active mineral admixture, 20-40 parts of vitrified microsphere aggregate, 5-30 parts of shaped fatty acid phase change energy storage material with the phase change temperature of 18-27 ℃, 2-5 parts of redispersible latex powder, 0.1-0.5 part of wood fiber, 0.2-0.6 part of water-retaining agent, 0.1-0.5 part of water repellent, 0.2-0.6 part of gypsum retarder, 0.3-0.8 part of gypsum water reducer and 50-80 parts of water. Firstly, putting calcined desulfurized gypsum powder, fly ash, slag, a gypsum water reducing agent, a gypsum retarder, wood fibers, a water retaining agent, a water repellent and redispersible latex powder into a mortar mixer for mixing and stirring, then adding vitrified microsphere aggregate, a shaped fatty acid phase-change material and water, and mixing and stirring to obtain the gypsum-based phase-change energy-storage polymer thermal-insulation mortar.
Description
Technical field
The present invention relates to the energy-storage composite material field, relate in particular to a kind of gypsum-based phase change energy storage polymer insulation mortar and preparation method thereof.
Background technology
Gypsum base glass bead polymer thermal insulating mortar refers to having the low density vitreous microballon of insulation capacity as aglite; adopting terra alba is main gelling material and other polynary compound additive; the insulation coating material of making through certain technique by a certain percentage; it is light to have quality; the advantages such as heat insulating, cost is low, speed of application is fast, more general organic heat-insulating mortar have preferably flame retardant properties and physical-chemical stability.In recent years, the comprehensive utilization industrial residue prepares the development trend that the novel green energy saving building material becomes China's building material industry, utilizes the industrial solid castoffs such as desulfurated plaster, flyash to prepare the Novel Inorganic Polymers thermal insulation mortar and substitutes traditional popular research topic of thermal insulation mortar industry that becomes take building gypsum plaster as gelling material inorganic polymer thermal insulation mortar.
Thermal insulation mortar is as a kind of heat-insulating material, the needs of Xia Redong cryogenic region heat-insulating have been satisfied to a certain extent, smear one deck building heat-insulating mortar at building inside and outside wall, reduced the thermal conductivity of masonry wall structure, reduced heat conduction efficiency, effectively stop the transmission of indoor heat from-inner-to-outer in evening in winter, reached the purpose of heat insulating.Although traditional inorganic heat insulation mortar has the effect of heat insulating, but not only lower thermal conductivity to be arranged as the material of construction that forms architectural exterior-protecting construction, also to have higher heat storage coefficient, namely has higher thermal lag, has preferably resisting temperature fluctuation ability, thermal insulation mortar is because density is lower, cause its thermal lag to compare with traditional brick wall structure, resisting temperature fluctuation ability a little less than, just need air-conditioning to regulate room temp when hotter or winter is colder in summer, can't further satisfy building energy conservation to the performance requirement of light wall material.
In modern high-rise building, light high-strength building material is used more and more extensive, thermal property to material requires more and more higher, therefore, by mixing phase change material at traditional thermal insulation mortar, utilize the phase transformation suction heat release of phase change material to carry out storage and the release of energy, effectively increase the thermal lag of thermal insulation mortar, improve thermal insulation mortar opposing temperature fluctuation ability, has simultaneously lower thermal conductivity, heat-insulating capability is better, and this characteristic of phase-transition heat-preserving mortar makes it have good application prospect at modern high-rise building and building energy conservation.Lipid acid is the phase change material that a class has better latent heat of phase change and chemical stability, and volume change is little in phase transition process, and non-corrosiveness, and condensate depression is lower, and chemical stability is better, is that a class is used more phase-changing energy storage material.Sizing phase-change material is that phase change material and inorganic porous material, high molecule plastic etc. are combined, by certain technological process phase change material is wrapped in certain space structure, makes phase change material in the phase transformation melting process, still be in certain restrained condition and do not run off.Adopt the porous medium lipid acid sizing phase-change material of physisorphtion preparation, preparation technology is simple, only need by simple stirring fusion the lipid acid phase change material to be incorporated in porous medium, just can prepare typing particulate state sizing phase-change material, this particulate state phase change material is easy to disperse in dry-mix, during high temperature phase change material suffer restraints the effect and non-leakage.In the phase-changing energy storage material field, about phase-change accumulation energy concrete, phase transformation materials for wall more research has been arranged in the bibliographical information, but phase change material has been incorporated in the thermal insulation mortar, preparation phase-change energy-storing heat preservation mortar is seldom reported.
Summary of the invention
The object of the invention is to provides a kind of preparation technology simple for the heat storage capacity that improves thermal insulation mortar, heat insulating effect is obvious, gypsum-based phase change energy storage polymer insulation mortar with certain accumulation of energy effect, another object of the present invention have provided the preparation method of above-mentioned materials.
Technical scheme of the present invention is: a kind of gypsum-based phase change energy storage polymer insulation mortar; the weight part of its each component and each component is as follows respectively: calcining desulfurization gypsum powder 20-30 part; active mineral admixture 10-40 part; glass bead aggregate 20-40 part; transformation temperature is typing lipid acid phase-changing energy storage material 5-30 part of 18-27 ℃; redispersable latex powder 2-5 part; wood fibre 0.1-0.5 part; water-holding agent 0.2-0.6 part; hydrophober 0.1-0.5 part; calcium sulphate retarder 0.2-0.6 part, gypsum water reducer 0.3-0.8 part, water 50-80 part.
Wherein the specific surface area of preferred described calcining desulfurization gypsum powder is 350-500m
2/ kg; Its main component is semi-hydrated gypsum, and described mineral admixture is the compound of flyash and slag, and wherein flyash is II level or III level flyash, and the specific surface area of slag is 280-500m
2/ kg, the weight ratio of flyash and slag is 1: 1.5～4.
Preferred described typing lipid acid phase-changing energy storage material is to be the porous matrix of 10-30% and to be that the lauric acid-capric acid mixed fatty acid phase change material of 70-90% forms in the transformation temperature melting mixing by the mass ratio that accounts for typing lipid acid phase-changing energy storage material by the mass ratio that accounts for typing lipid acid phase-changing energy storage material.
Preferred described gypsum-based phase change energy storage polymer insulation mortar is characterized in that: described porous matrix is a kind of in wilkinite, active carbon powder or the diatomite, and porous matrix particle median size is between 15-40 μ m; The mol ratio of lauric acid and capric acid is 4 in described lauric acid-capric acid mixed fatty acid phase change material: 6-6: 4, and transformation temperature is 18-27 ℃.
Preferred described calcium sulphate retarder is Trisodium Citrate, citric acid, sodium polyphosphate or tartrate; Described gypsum water reducer is a kind of in naphthalenesulfonate formaldehyde condensation compound, sulfonated melamine compound resin or the polycarboxylate water-reducer; Described water-holding agent is hydroxypropyl methyl cellulose ether (HPMC), methyl cellulose ether (MC) or hydroxyethylmethyl-cellulose ether (HEMC), and water-holding agent viscosity is between 0.8-2 ten thousand mpas; Described hydrophober is commercially available silane powder hydrophober.
Preferred described redispersable latex powder is a kind of in vinyl acetate-ethylene copolymer latex powder, vinyl acetate between to for plastic-tertiary carbon vinyl acetate-acrylic ester copolymer latex powder or the Vinyl Acetate Copolymer-generating vinyl carboxylate-ethylene copolymer.
The particle diameter of preferred described glass bead aggregate is between 0.10-1.5mm, and tap density is 110-120kg/m
3
The present invention also provides the preparation method of above-mentioned gypsum-based phase change energy storage polymer insulation mortar; its concrete steps are as follows: will calcine desulfurization gypsum powder first; flyash; slag; the gypsum water reducer; calcium sulphate retarder, wood fibre, water-holding agent; hydrophober; redispersable latex powder is put in the mortar mixer, 60-80 rev/min of stirrer rotating speed, mix and blend 5-15 minute; and then adding glass bead aggregate; typing lipid acid phase change material; 60-80 rev/min of stirrer rotating speed adds behind the water mix and blend 5-15 minute, obtains gypsum-based phase change energy storage polymer insulation mortar.
Beneficial effect:
It is simple that gypsum-based phase change energy storage polymer insulation mortar of the present invention has a preparation method, with low cost, have high cracking resistance energy, low shrinkage and deformation, high cohesive force, water-tolerant, have insulation and heat storage performance concurrently, taking full advantage of in process of production slag and flyash equal industrial residue, is a kind of Novel environment-protective energy-saving material of construction.
Embodiment
Specify the present invention below by embodiment:
Proportionally take by weighing various starting material, first the calcining desulfurization gypsum powder in the proportioning, active blending material mixes with needed admixture and stirs, and then successively mixes with glass bead and typing lipid acid phase change material, and the formation product stirs.Use needs according to gypsum-based phase change energy storage polymer insulation mortar, by adjusting the invention prescription, can obtain needed performance.
Embodiment 1
By weight, (specific surface area is 380m to take by weighing 30 parts of calcining desulfurization gypsum powders
2/ kg), (specific surface area is 310m for 19 parts in slag
2/ kg), 6 parts in III level flyash, 0.5 part of Trisodium Citrate, 0.5 part of sulfonated melamine compound resin water reducer, 0.4 part of wood fibre (length 500 μ m, rugosity 30 μ m), 0.3 part of water-holding agent HPMC, viscosity is 15000mpa.s, 0.3 part of silane powder hydrophober, " Wa Ke "
3 parts of 5044 vinyl acetates-ethylene copolymer latex powder are put in the stirrer, and 60 rev/mins of stirrer rotating speeds mixed 10 minutes, and then add 40 parts of glass beads (particle diameter between 0.1-1.5mm, tap density 120kg/m
3), 5 parts of typing lipid acid sizing phase-change materials mix, the lipid acid phase change material of wherein finalizing the design consists of quality than active carbon powder (median size 18 μ m): mixed fatty acid phase change material=30: 70, wherein the mixed fatty acid phase change material consists of the mol ratio lauric acid: capric acid=5: 5, transformation temperature is 21.8 ℃, adds 76 parts in water, 70 rev/mins of stirrer rotating speeds, mix and blend 10 minutes obtains gypsum-based phase change energy storage polymer insulation mortar.
Embodiment 2
By weight, (specific surface area is 360m to take by weighing 25 parts of calcining desulfurization gypsum powders
2/ kg), (specific surface area is 380m for 20 parts in slag
2/ kg), 10 parts in II level flyash, 0.3 part of citric acid, 0.4 part of sulfonated melamine compound resin water reducer, 0.5 part of wood fibre (length 250 μ m, rugosity 30 μ m), 0.5 part of water-holding agent HEMC, viscosity is 15000mpas, 0.4 part of silane powder hydrophober, " Wa Ke "
5 parts of 5044 vinyl acetates-ethylene copolymer latex powder are put in the stirrer, and 60 rev/mins of stirrer rotating speeds mixed 10 minutes, and then added 40 parts of glass beads, (particle diameter between 0.1-1.5mm, tap density 115kg/m
3), 5 parts of typing lipid acid sizing phase-change materials mix, the lipid acid phase change material of wherein finalizing the design consists of quality than active carbon powder (median size 31 μ m): mixed fatty acid phase change material=20: 80, wherein the mixed fatty acid phase change material consists of the mol ratio lauric acid: capric acid=6: 4, transformation temperature is 25.1 ℃, adds 76 parts in water, 70 rev/mins of stirrer rotating speeds, mixed 10 minutes, and obtained gypsum-based phase change energy storage polymer insulation mortar.
Embodiment 3
By weight, (specific surface area is 410m to take by weighing 30 parts of calcining desulfurization gypsum powders
2/ kg), (specific surface area is 400m for 18 parts in slag
2/ kg), 12 parts in II level flyash, 0.5 part of Trisodium Citrate, 0.4 part of naphthalenesulfonate formaldehyde condensation compound water reducer, 0.3 part of wood fibre (length 500 μ m, rugosity 30 μ m), 0.4 part of water-holding agent HEMC, viscosity is 8000mpas, 0.4 part of silane powder hydrophober, " Yi Laitai "
5 parts of FL4200 vinyl acetate between to for plastics-tertiary carbon vinyl acetate-acrylic ester copolymer latex powder are put in the stirrer, and 60 rev/mins of stirrer rotating speeds mixed 10 minutes, and then with 30 parts of glass beads, (particle diameter between 0.1-1.5mm, tap density 110kg/m
3), 10 parts of typing lipid acid sizing phase-change materials mix, typing lipid acid phase change material consists of quality than diatomite powder (median size 22 μ m): mixed fatty acid phase change material=20: 80, wherein the mixed fatty acid phase change material consists of the mol ratio lauric acid: capric acid=6: 4, transformation temperature is 25.1 ℃, adds 72 parts in water, 70 rev/mins of stirrer rotating speeds, mixed 15 minutes, and obtained gypsum-based phase change energy storage polymer insulation mortar.
Embodiment 4
By weight, (specific surface area is 410m to take by weighing 20 parts of calcining desulfurization gypsum powders
2/ kg), (specific surface area is 500m for 25 parts in slag
2/ kg), 15 parts in flyash, 0.5 part in tartrate, 0.5 part of sulfonated melamine compound resin water reducer, 0.3 part of wood fibre (length 250 μ m, rugosity 30 μ m), 0.4 part of water-holding agent HPMC, viscosity is 8000mpas, 0.5 part of silane powder hydrophober, " Yi Laitai "
4 parts of FL4200 vinyl acetate between to for plastics-tertiary carbon vinyl acetate-acrylic ester copolymer latex powder are put in the stirrer, and 60 rev/mins of stirrer rotating speeds mixed 15 minutes, and then and 20 parts of glass beads (particle diameter between 0.1-1.5mm, tap density 105kg/m
3), 20 parts of typing lipid acid sizing phase-change materials mix, the lipid acid phase change material of wherein finalizing the design consists of quality than active carbon powder (median size 25 μ m): mixed fatty acid phase change material=30: 70, wherein the mixed fatty acid phase change material consists of the mol ratio lauric acid: capric acid=5: 5, transformation temperature is 21.8 ℃, adds 64 parts in water, 80 rev/mins of stirrer rotating speeds, mixed 10 minutes, and obtained gypsum-based phase change energy storage polymer insulation mortar.
Embodiment 5
By weight, (specific surface area is 370m to take by weighing 25 parts of calcining desulfurization gypsum powders
2/ kg), (specific surface area is 280m for 15 parts in slag
2/ kg), 10 parts in flyash, 0.5 part of Trisodium Citrate; 0.3 part of polycarboxylate water-reducer, 0.3 part of wood fibre (length 500 μ m, rugosity 30 μ m); 0.5 part of water-holding agent MC, viscosity is 20000mpas, 0.4 part of silane powder hydrophober; 5 parts of Shanxi D S WF-05 Vinyl Acetate Copolymer-generating vinyl carboxylates-ethylene copolymer latex powder; put in the stirrer, 70 rev/mins of stirrer rotating speeds mixed 15 minutes; and then and 30 parts of glass beads (particle diameter between 0.1-1.5mm, tap density 105kg/m
3), 20 parts of typing lipid acid sizing phase-change materials mix, typing lipid acid phase change material consists of quality than wilkinite powder (median size is 30 μ m): mixed fatty acid phase change material=10: 90, wherein the mixed fatty acid phase change material consists of the mol ratio lauric acid: capric acid=4: 6, transformation temperature is 20.2 ℃, adds 64 parts in water, 80 rev/mins of stirrer rotating speeds, mixed 10 minutes, and obtained gypsum-based phase change energy storage polymer insulation mortar.
Embodiment 6
By weight, (specific surface area is 430m to take by weighing 20 parts of calcining desulfurization gypsum powders
2/ kg), (specific surface area is 300m for 15 parts in slag
2/ kg); 5 parts in flyash; 0.5 part of sodium polyphosphate; 0.5 part of polycarboxylate water-reducer; wood fibre (length 250 μ m; rugosity 30 μ m) 0.5 part; 0.5 part of water-holding agent HPMC, viscosity is 20000mpas, 0.5 part of silane powder hydrophober; 5 parts of Shanxi D S WF-05 Vinyl Acetate Copolymer-generating vinyl carboxylates-ethylene copolymer latex powder; put in the stirrer, 70 rev/mins of stirrer rotating speeds mixed 15 minutes; and then and 30 parts of glass beads (particle diameter between 0.1-1.5mm, tap density 110kg/m
3), 30 parts of lipid acid sizing phase-change materials mix, typing lipid acid phase change material consists of quality than wilkinite powder (median size is 35 μ m): mixed fatty acid phase change material=10: 90, wherein the mixed fatty acid phase change material consists of the mol ratio lauric acid: capric acid=4: 6, transformation temperature is 20.2 ℃, adds 56 parts in water, 80 rev/mins of stirrer rotating speeds, mixed 15 minutes, and obtained gypsum-based phase change energy storage polymer insulation mortar.
The correlation parameter test result is as shown in table 1
Table 1
Table 1 is surveyed the polymer thermal insulating mortar properties and is met the requirement of GB/T 20473-2006 " building heat-insulating mortar " correlated performance, and after adding typing lipid acid phase change material, the gypsum-based phase change energy storage polymer insulation mortar thermal conductivity reduces, specific heat capacity increases, heat storage capacity strengthens, and the gypsum-based phase change energy storage polymer insulation mortar of preparation has insulation and regenerative effect concurrently.
The above; it only is the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (5)
1. gypsum-based phase change energy storage polymer insulation mortar, the weight part of its each component and each component is as follows respectively: calcining desulfurization gypsum powder 20-30 part, active mineral admixture 10-40 part, glass bead aggregate 20-40 part, transformation temperature is typing lipid acid phase-changing energy storage material 5-30 part of 18-27 ℃, redispersable latex powder 2-5 part, wood fibre 0.1-0.5 part, water-holding agent 0.2-0.6 part, hydrophober 0.1-0.5 part, calcium sulphate retarder 0.2-0.6 part, gypsum water reducer 0.3-0.8 part, water 50-80 part; The specific surface area of wherein said calcining desulfurization gypsum powder is 350-500m
2/ kg; Described mineral admixture is the compound of flyash and slag, and wherein flyash is II level or III level flyash, and the specific surface area of slag is 280-500m
2/ kg, the weight ratio of flyash and slag is 1:1.5 ~ 4; Described typing lipid acid phase-changing energy storage material is to be the porous matrix of 10-30% and to be that the lauric acid-capric acid mixed fatty acid phase change material of 70-90% forms in the transformation temperature melting mixing by the mass ratio that accounts for typing lipid acid phase-changing energy storage material by the mass ratio that accounts for typing lipid acid phase-changing energy storage material; Described porous matrix is a kind of in wilkinite, active carbon powder or the diatomite, and porous matrix particle median size is between 15-40 μ m; The mol ratio of lauric acid and capric acid is 4:6-6:4 in described lauric acid-capric acid mixed fatty acid phase change material, and transformation temperature is 18-27 ℃; Described gypsum water reducer is a kind of in naphthalenesulfonate formaldehyde condensation compound, sulfonated melamine compound resin or the polycarboxylate water-reducer; Described hydrophober is silane powder hydrophober.
2. gypsum-based phase change energy storage polymer insulation mortar according to claim 1 is characterized in that described calcium sulphate retarder is Trisodium Citrate, citric acid, sodium polyphosphate or tartrate; Described water-holding agent is hydroxypropyl methyl cellulose ether, methyl cellulose ether or hydroxyethylmethyl-cellulose ether, and water-holding agent viscosity is between 0.8-2 ten thousand mpas.
3. gypsum-based phase change energy storage polymer insulation mortar according to claim 1 is characterized in that: described redispersable latex powder is a kind of in vinyl acetate-ethylene copolymer latex powder, vinyl acetate between to for plastic-tertiary carbon vinyl acetate-acrylic ester copolymer latex powder or the Vinyl Acetate Copolymer-generating vinyl carboxylate-ethylene copolymer.
4. gypsum-based phase change energy storage polymer insulation mortar according to claim 1, it is characterized in that: the particle diameter of described glass bead aggregate is between 0.10-1.5mm, and tap density is 110-120kg/m
3
5. one kind prepares the as described in claim 1 method of gypsum-based phase change energy storage polymer insulation mortar; its concrete steps are as follows: will calcine desulfurization gypsum powder first; flyash; slag; the gypsum water reducer; calcium sulphate retarder, wood fibre, water-holding agent; hydrophober; redispersable latex powder is put in the mortar mixer, 60-80 rev/min of stirrer rotating speed, mix and blend 5-15 minute; and then adding glass bead aggregate; typing lipid acid phase change material; add behind the water mix and blend 5-15 minute, 60-80 rev/min of stirrer rotating speed obtains gypsum-based phase change energy storage polymer insulation mortar.
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