CN105837100A - Preparation method of foamed cement heat insulation board modified by micro silicon dioxide aerogel - Google Patents
Preparation method of foamed cement heat insulation board modified by micro silicon dioxide aerogel Download PDFInfo
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- CN105837100A CN105837100A CN201610175274.3A CN201610175274A CN105837100A CN 105837100 A CN105837100 A CN 105837100A CN 201610175274 A CN201610175274 A CN 201610175274A CN 105837100 A CN105837100 A CN 105837100A
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- China
- Prior art keywords
- silicon dioxide
- preparation
- fine silicon
- cement
- heat preserving
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A preparation method of a foamed cement heat insulation board modified by micro silicon dioxide aerogel includes the steps of compounding the micro silicon dioxide aerogel with a foam stabilizer, and adding a water reducer, polypropylene fiber and a lithium-based solidifier with cement as a base material, and foaming the mixture with a foamer, and maintaining, demoulding and cutting the foamed material to obtain the environment-protective heat insulation board which is low in heat conductivity and density and is high in strength. The micro silicon dioxide aerogel having large specific surface area, high porosity and low heat conductivity is employed as an additive and is compounded with the foam stabilizer, so that internal capillary pores in cement mortar are effectively improved. The prepared foamed cement heat insulation board has low heat conductivity and density and high compression strength, is simple in process, is environment-friendly and economical, and is suitable for being used in building heat insulation material.
Description
Technical field
The present invention relates to the preparation method of a kind of cement insulation board, particularly relate to a kind of fine silicon dioxide aeroge
The preparation method of modified foaming cement heat preserving plate.
Background technology
China is world architecture big country, and the usage amount of construction material accounts for more than the 30% of world demand amount, needs to expend in a large number
Construction material, building energy consumption account for the whole nation total energy consumption 40%.Therefore, how energy-saving and emission-reduction, structure are realized by reduction building energy consumption
Build conservation-minded society extremely the most urgent.
It is to construct construction wall insulation material that reduction building energy consumption realizes the major way of energy-saving and emission-reduction.At present, both at home and abroad
Conventional building thermal insulation material mainly have the organic insulation material with polyurethane, phenolic foam heat insulation plate as representative and with rock wool,
The inorganic heat insulation material that foam glass, expanded perlite class etc. are representative.Organic insulation material great advantage be energy-conservation, light weight,
Be incubated, thermal insulation is good, construction experience is abundant, but this kind of organic foam material there is also poor stability, the most aging, easy firing,
And when burning, smog is big, toxicity big, the defect that its safety, durability etc. are fatal.The most in recent years, build again and again more
Fire such as Jing'an, Shanghai big fire of generation, Beijing CCTV building fire, be all to be caused by catching fire of this kind of foamed materials.Cause
This, the fire prevention hidden danger of architectural exterior insulation material has become as serious social safety problem.The advantage that inorganic heat insulation material is maximum
It is exactly that fire resistance property is strong, drawbacks described above can be made up, organic insulation material can be replaced to a certain extent, become novel energy-conserving
Insulation material.The most higher yet with its unit weight, heat conductivity, govern its spread.
Therefore, how to solve the contradiction between the insulation of insulation material, fire prevention, cost, environmental protection, be that we are urgently to be resolved hurrily
Problem.Development of Novel insulation material not only has a extensive future, and imperative.
Summary of the invention
It is an object of the invention to provide the preparation side of a kind of fine silicon dioxide aeroge modified foaming cement heat preserving plate
Method, the method prepare Foam cement insulation material comprcssive strength height, light weight, insulation, fire resistance property is strong, technique is simple,
Environmental protection and economy.
Realization the technical scheme is that, one fine silicon dioxide aeroge modified foaming cement heat preserving plate of the present invention
Preparation method, be that fine silicon dioxide aeroge is combined with foam stabilizer, with cement as base material, mix water reducer, polypropylene
Fiber, lithio firming agent, prepare a kind of low heat conduction system through processes such as foaming, maintenance, the demoulding, cuttings under the effect of foaming agent
Number, low-density, High-strength environmentally-friefuran warming plate.For improving cement mortar internal capillary hole path, reduce heat conductivity and capacity,
Solving the best problem of heat insulation effect, the present invention uses has the fine of big specific surface area, high hole ratio and low thermal conductivity
Aerosil is that additive is combined with foam stabilizer.
The raw materials quality that the present invention a kind of fine silicon dioxide aeroge modified foaming cement heat preserving plate is added is as follows, micro-
Fine silica aeroge, foam stabilizer, cement, water reducer, polypropylene fibre, lithio firming agent, foaming agent, the mass ratio of water are
(0.44 ~ 0.88) : (0.88 ~ 1.32) : 88 : (0.22 ~ 0.25) : (0.5 ~ 0.7) : (0.22 ~
0.44) : (5.5 ~ 8.8) : (42 ~ 52)。
Described fine silicon dioxide aeroge is hydrophobic type, is obtained by the grinding of airsetting blob of viscose, and specific surface area is 600
/ g, density is 40kg/m3。
Described foam stabilizer is by the one in nanometer calcium stearate, nanometer zinc stearate, nanometer magnesium stearate, precipitated calcium carbonate
Or multiple mix with polyacrylamide, dodecylbenzene sodium sulfonate, triethanolamine, hydroxypropyl methyl cellulose ether；Wherein
Nanometer calcium stearate, nanometer zinc stearate, nanometer magnesium stearate are the nano-particle through surface modification, and its particle size range exists
Between 20 60 nm, inorganic agent silane coupler is the one in KH550, KH560.
Described cement is 42.5 grades of Portland cements.
Described water reducer is polycarboxylate water-reducer.
Described foaming agent is the H of 27.3%2O2Liquid.
The concrete steps of described preparation method include the processes such as foaming, maintenance, the demoulding, cutting.
The invention has the beneficial effects as follows, Foam cement insulation material comprcssive strength height that the present invention prepares, light weight, thermal insulation separation
Heat, fire resistance property are strong, the simple and environmentally-friendly economy of technique.
Detailed description of the invention
Embodiment 1
1) by 0.44 kg fine silicon dioxide aeroge and 0.88 kg foam stabilizer mix homogeneously, it is sequentially added into 88 kg cement,
0.22 kg water reducer, 0.5 kg polypropylene fibre, 0.22 kg lithio firming agent, and stir 1 min and make mix homogeneously, add 60
° C 42 kg water stirring 2-3 min, obtains unexpanded slurry.
2) in unexpanded slurry, add 5.5 kg foaming agent, then stir 15s, the prefoam slip casting obtained is become
Type, then through processes such as maintenance, the demoulding, cuttings, obtain fine silicon dioxide aeroge modified foaming cement heat preserving plate.
Embodiment 2
1) by 0.66 kg fine silicon dioxide aeroge and 1.1 kg foam stabilizer mix homogeneously, it is sequentially added into 88 kg cement,
0.22 kg water reducer, 0.5 kg polypropylene fibre, 0.22 kg lithio firming agent, and stir 1 min and make mix homogeneously, add 60
° C 48 kg water stirring 2-3 min, obtains unexpanded slurry.
2) in unexpanded slurry, add 6.6 kg foaming agent, then stir 15s, the prefoam slip casting obtained is become
Type, then through processes such as maintenance, the demoulding, cuttings, obtain fine silicon dioxide aeroge modified foaming cement heat preserving plate.
Embodiment 3
1) by 0.88 kg fine silicon dioxide aeroge and 1.32 kg foam stabilizer mix homogeneously, it is sequentially added into 88 kg cement,
0.25 kg water reducer, 0.7 kg polypropylene fibre, 0.44 kg lithio firming agent, and stir 1 min and make mix homogeneously, add 60
° C 52 kg water stirring 2-3 min, obtains unexpanded slurry.
2) in unexpanded slurry, add 8.8 kg foaming agent, then stir 15s, the prefoam slip casting obtained is become
Type, then through processes such as maintenance, the demoulding, cuttings, obtain fine silicon dioxide aeroge modified foaming cement heat preserving plate.
The performance indications of table 1 embodiment 1-3 warming plate
Claims (7)
1. the preparation method of a fine silicon dioxide aeroge modified foaming cement heat preserving plate, it is characterised in that described method
Fine silicon dioxide aeroge is combined with foam stabilizer, with cement as base material, mixes water reducer, polypropylene fibre, lithio solidification
Agent, preparation a kind of low thermal conductivity, Low-density environmentally-friefloor type warming plate under the effect of foaming agent；The fine dioxy wherein added
SiClx aeroge, foam stabilizer, cement, water reducer, polypropylene fibre, lithio firming agent, foaming agent, the mass ratio of water are (0.44
~ 0.88) : (0.88 ~ 1.32) : 88 : (0.22 ~ 0.25) : (0.5 ~ 0.7) : (0.22 ~ 0.44) :
(5.5 ~ 8.8) : (42 ~ 52)。
The preparation method of a kind of fine silicon dioxide aeroge modified foaming cement heat preserving plate the most according to claim 1,
It is characterized in that, described fine silicon dioxide aeroge is hydrophobic type, is obtained by the grinding of airsetting blob of viscose, and specific surface area is
500-650/g, density is 40-45 kg/m3。
The preparation method of a kind of fine silicon dioxide aeroge modified foaming cement heat preserving plate the most according to claim 1,
It is characterized in that, described foam stabilizer is by nanometer calcium stearate, nanometer zinc stearate, nanometer magnesium stearate, precipitated calcium carbonate
One or more mix with polyacrylamide, dodecylbenzene sodium sulfonate, triethanolamine, hydroxypropyl methyl cellulose ether and
Become；Wherein nanometer calcium stearate, nanometer zinc stearate, nanometer magnesium stearate are the nano-particle through surface modification, its particle diameter
Scope is between 20 60 nm, and inorganic agent silane coupler is the one in KH550, KH560.
The preparation method of a kind of fine silicon dioxide aeroge modified foaming cement heat preserving plate the most according to claim 1,
It is characterized in that, described cement is 42.5 grades of Portland cements.
The preparation method of a kind of fine silicon dioxide aeroge modified foaming cement heat preserving plate the most according to claim 1,
It is characterized in that, described water reducer is polycarboxylate water-reducer.
The preparation method of a kind of fine silicon dioxide aeroge modified foaming cement heat preserving plate the most according to claim 1,
It is characterized in that, described foaming agent is the H of 27.3%2O2Liquid.
7. prepare according to the fine silicon dioxide aeroge modified foaming cement heat preserving described in claim 1-6 any one of kind for one kind
The preparation method of plate, it is characterised in that the concrete steps of described preparation method include foaming, maintenance, the demoulding, cutting, finished product
The processes such as maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175274.3A CN105837100A (en) | 2016-03-25 | 2016-03-25 | Preparation method of foamed cement heat insulation board modified by micro silicon dioxide aerogel |
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| CN201610175274.3A CN105837100A (en) | 2016-03-25 | 2016-03-25 | Preparation method of foamed cement heat insulation board modified by micro silicon dioxide aerogel |
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| CN201610175274.3A Pending CN105837100A (en) | 2016-03-25 | 2016-03-25 | Preparation method of foamed cement heat insulation board modified by micro silicon dioxide aerogel |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242448A (en) * | 2016-08-30 | 2016-12-21 | 卓达新材料科技集团威海股份有限公司 | A kind of aeroge is combined wood particle board and preparation method thereof |
| CN106380150A (en) * | 2016-08-30 | 2017-02-08 | 卓达新材料科技集团威海股份有限公司 | Method for preparing aerogel composite sawdust plate from slag as admixture |
| CN106380152A (en) * | 2016-08-30 | 2017-02-08 | 卓达新材料科技集团威海股份有限公司 | Aerogel composite sawdust plate and preparation method thereof |
| CN106396595A (en) * | 2016-08-30 | 2017-02-15 | 卓达新材料科技集团威海股份有限公司 | Method for producing aerogel composite sawdust board |
| CN106747189A (en) * | 2016-12-07 | 2017-05-31 | 苏州同玄新材料有限公司 | Gypsum material of aerogel-congtg and preparation method thereof |
| CN107089817A (en) * | 2017-05-31 | 2017-08-25 | 福建江夏学院 | A kind of composite toughening steam-pressing aero-concrete and preparation method thereof |
| CN108328620A (en) * | 2018-02-12 | 2018-07-27 | 南京工业大学 | Preparation method of hydrophobic foaming cement composite silicon aerogel material |
| CN108585927A (en) * | 2018-07-13 | 2018-09-28 | 深圳中天精装股份有限公司 | A kind of nano-cellulose aerogel thermal insulation board and preparation method thereof |
| CN109467454A (en) * | 2017-09-08 | 2019-03-15 | 穆振奎 | A kind of compound A grades of fireproof and heat-insulating material of aerosil and its preparation process |
| CN110498652A (en) * | 2019-09-23 | 2019-11-26 | 中国地质大学（北京） | The modified iron tailings composite foam thermal insulation material and preparation method thereof of aeroge |
| CN110627523A (en) * | 2019-09-26 | 2019-12-31 | 东南大学 | Composite thermal insulation material and preparation method thereof |
| CN113200762A (en) * | 2021-04-26 | 2021-08-03 | 海南七武海科技有限公司 | Capsule type composite thermal insulation material and preparation method thereof |
| US11111178B2 (en) * | 2018-06-18 | 2021-09-07 | The Board Of Trustees Of The University Of Alabama | Renewable admixtures for cementitious compositions |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242448A (en) * | 2016-08-30 | 2016-12-21 | 卓达新材料科技集团威海股份有限公司 | A kind of aeroge is combined wood particle board and preparation method thereof |
| CN106380150A (en) * | 2016-08-30 | 2017-02-08 | 卓达新材料科技集团威海股份有限公司 | Method for preparing aerogel composite sawdust plate from slag as admixture |
| CN106380152A (en) * | 2016-08-30 | 2017-02-08 | 卓达新材料科技集团威海股份有限公司 | Aerogel composite sawdust plate and preparation method thereof |
| CN106396595A (en) * | 2016-08-30 | 2017-02-15 | 卓达新材料科技集团威海股份有限公司 | Method for producing aerogel composite sawdust board |
| CN106747189A (en) * | 2016-12-07 | 2017-05-31 | 苏州同玄新材料有限公司 | Gypsum material of aerogel-congtg and preparation method thereof |
| CN106747189B (en) * | 2016-12-07 | 2019-09-06 | 苏州同玄新材料有限公司 | Gypsum material of aerogel-congtg and preparation method thereof |
| CN107089817A (en) * | 2017-05-31 | 2017-08-25 | 福建江夏学院 | A kind of composite toughening steam-pressing aero-concrete and preparation method thereof |
| CN109467454A (en) * | 2017-09-08 | 2019-03-15 | 穆振奎 | A kind of compound A grades of fireproof and heat-insulating material of aerosil and its preparation process |
| CN108328620A (en) * | 2018-02-12 | 2018-07-27 | 南京工业大学 | Preparation method of hydrophobic foaming cement composite silicon aerogel material |
| CN108328620B (en) * | 2018-02-12 | 2021-08-24 | 南京工业大学 | Preparation method of hydrophobic foaming cement composite silicon aerogel material |
| US11111178B2 (en) * | 2018-06-18 | 2021-09-07 | The Board Of Trustees Of The University Of Alabama | Renewable admixtures for cementitious compositions |
| US11814321B2 (en) | 2018-06-18 | 2023-11-14 | The Board Of Trustees Of The University Of Alabama | Renewable admixtures for cementitious compositions |
| CN108585927A (en) * | 2018-07-13 | 2018-09-28 | 深圳中天精装股份有限公司 | A kind of nano-cellulose aerogel thermal insulation board and preparation method thereof |
| CN110498652A (en) * | 2019-09-23 | 2019-11-26 | 中国地质大学（北京） | The modified iron tailings composite foam thermal insulation material and preparation method thereof of aeroge |
| CN110627523A (en) * | 2019-09-26 | 2019-12-31 | 东南大学 | Composite thermal insulation material and preparation method thereof |
| CN110627523B (en) * | 2019-09-26 | 2020-11-03 | 东南大学 | Composite thermal insulation material and preparation method thereof |
| WO2021056638A1 (en) * | 2019-09-26 | 2021-04-01 | 东南大学 | Composite thermal insulation material and preparation method therefor |
| AU2019467669B2 (en) * | 2019-09-26 | 2023-04-06 | Southeast University | A composite thermal insulation material and its preparation method |
| CN113200762A (en) * | 2021-04-26 | 2021-08-03 | 海南七武海科技有限公司 | Capsule type composite thermal insulation material and preparation method thereof |
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