CN105218045A - A kind of cement insulation board of high microsteping volume and substep foaming preparation method thereof - Google Patents
A kind of cement insulation board of high microsteping volume and substep foaming preparation method thereof Download PDFInfo
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- CN105218045A CN105218045A CN201510616115.8A CN201510616115A CN105218045A CN 105218045 A CN105218045 A CN 105218045A CN 201510616115 A CN201510616115 A CN 201510616115A CN 105218045 A CN105218045 A CN 105218045A
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Abstract
The invention discloses a kind of cement insulation board of high microsteping volume, be prepared from by the raw material containing cement, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent, foam enhancer and water, water-cement ratio is 0.3 ~ 0.6; The per-cent that pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: pore structure conditioning agent 0 ~ 4%, adjustable solidification agent 0.1% ~ 12%, water-resisting agent 1% ~ 10%, water reducer 0.05% ~ 0.5%, cracking resistance component 1.5% ~ 4%, whipping agent 8% ~ 12%, foam enhancer 0 ~ 10%; Cracking resistance component is PP fiber, PVA fiber, glass fibre and basalt fibre.The preparation method of substep of the present invention foaming, significantly can increase the volume of fiber, thus improve the mechanical property of warming plate, the technological deficiency that when warming plate of preparation overcomes that in prior art, warming plate volume density is lower, tensile strength is low; Warming plate has lower volume density, higher ultimate compression strength, and thermal conductivity is low.
Description
Technical field
The invention belongs to building material field, relate to cement insulation board of a kind of high microsteping volume and preparation method thereof, be specifically related to a kind of cement insulation board and substep foaming preparation method of high microsteping volume.
Background technology
For cement insulation board, under same volume density case, in order to improve its tensile strength, needing on the one hand to improve substrate intensity, is then increase fibers content on the other hand.Existing national inventing patent (CN103803907A, CN104556902A, CN102584324A, CN103087526A, CN104250090A etc.) is all adopt one step foaming technology to prepare cement insulation board, reason is after fiber mixes in a large number, there will be the clustering phenomena that dispersion is not opened, affect foaming insulation board performance.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, and provides a kind of cement insulation board of high microsteping volume, and this warming plate has higher tensile strength and lower thermal conductivity when having lower volume density.
Another object of the present invention is to provide a kind of preparation method of above-mentioned warming plate, adopts the preparation method of substep foaming, not only significantly can increase the volume of fiber, and can improve the mechanical property of warming plate.
To achieve these goals, the present invention adopts following technical scheme:
A cement insulation board for high microsteping volume, is prepared from by the raw material containing cement, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent, foam enhancer and water; The per-cent that described pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: pore structure conditioning agent 0 ~ 4%, adjustable solidification agent 0.1% ~ 12%, water-resisting agent 1% ~ 10%, water reducer 0.05% ~ 0.5%, cracking resistance component 1.5% ~ 4%, whipping agent 8% ~ 12%, foam enhancer 0 ~ 10%.
In technique scheme, described water-cement ratio is 0.3 ~ 0.6.
In technique scheme, the per-cent that described pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: pore structure conditioning agent 1 ~ 4%, adjustable solidification agent 0.1% ~ 10%, water-resisting agent 2% ~ 8%, water reducer 0.2% ~ 0.4%, cracking resistance component 2% ~ 4%, whipping agent 8% ~ 11%, foam enhancer 3 ~ 8%.
In technique scheme, described cement is any one in ordinary Portland cement, ultra-fine silicate cement, high belite aluminosulfate cement, aluminosulfate cement and ultra-fine aluminosulfate cement, or two kinds of mixtures mixed with arbitrary proportion.
Described ultra-fine silicate cement and ultra-fine aluminosulfate cement, specific surface area is preferably 600m
2/ kg ~ 800m
2/ kg.
In technique scheme, described pore structure conditioning agent, is preferably silicon ash.
In technique scheme, described adjustable solidification agent is two or more mixture mixed with arbitrary proportion in anhydrite, sodium carbonate, Tai-Ace S 150, Quilonum Retard, citric acid or Trisodium Citrate.
In technique scheme, described water-resisting agent, is preferably the one in polymer emulsion, latex powder, resin rubber powder or calcium stearate, or two kinds of mixtures mixed with arbitrary proportion.
In technique scheme, described water reducer is preferably poly carboxylic acid series water reducer.
In technique scheme, described cracking resistance component is PP fiber, PVA fiber, glass fibre or basalt fibre.
In technique scheme, the preferred chemical foaming agent of whipping agent; Preferred hydrogen peroxide solution further, in described hydrogen peroxide solution, the massfraction of hydrogen peroxide is 20% ~ 30%.
In technique scheme, described foam enhancer can be existing multiple foam enhancer, and be preferably ferric chloride Solution, in described ferric chloride Solution, the massfraction of iron(ic) chloride is 10% ~ 20%.
The present invention also provides a kind of distribution foaming preparation method of cement insulation board of high microsteping volume, comprises the following steps:
(1) mix: the cement of described ratio, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer are mixed with water, stir 30 ~ 50s uniformly slurry with the speed of 150-250 rev/min;
(2) pre-frothing: the cracking resistance component adding described ratio in the slurry that step (1) obtains, and the whipping agent of described ratio 1/4, stirs 10 ~ 30s and obtains pre-frothing slurry;
(3) second time of foaming: the foam enhancer adding described ratio in the pre-frothing slurry that step (2) obtains, stirs 10 ~ 40s; Then add the whipping agent of remaining 3/4, stir 5 ~ 15s and carry out second time of foaming, after the test block sclerosis demoulding to be foamed, cutting forms cement insulation board.
Technological merit of the present invention is: the present invention adopts the method for substep foaming to prepare warming plate, significantly can increase the volume of fiber, thus improve the mechanical property of warming plate, the technological deficiency that when warming plate prepared by the inventive method overcomes that in prior art, warming plate volume density is lower, tensile strength is low; The warming plate of preparation has lower volume density, higher ultimate compression strength, and thermal conductivity is low.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1:
A cement insulation board for high microsteping volume, is prepared from by the raw material containing cement, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent, foam enhancer and water, and water-cement ratio is 0.44; The per-cent that pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: pore structure conditioning agent 1%, adjustable solidification agent 0.46%, water-resisting agent 4%, water reducer 0.32%, whipping agent 9.15%, foam enhancer 4%, cracking resistance component 2%;
Wherein: be weight percentage 80% ultra-fine silicate cement and weight percent of described cement is the mixture that 20% aluminosulfate cement mixes;
Described pore structure conditioning agent is silicon ash;
The mixture that the citric acid of described adjustable solidification agent to be weight ratio be 1:1:4:3, Trisodium Citrate, sodium carbonate and Tai-Ace S 150 mix;
The mixture that the calcium stearate of described water-resisting agent to be weight ratio be 1:1 and resin rubber powder mix;
Described water reducer is poly carboxylic acid series water reducer;
Described whipping agent is hydrogen peroxide solution, and in this solution, the massfraction of hydrogen peroxide is 27.5%;
Described foam enhancer is ferric chloride Solution, and the massfraction of this Chlorine in Solution iron is 13%;
Described cracking resistance component is PVA fiber.
Above-mentioned cement insulation board is prepared from by following method:
(1) mix: the cement of described ratio, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer are mixed with water, stir 40s uniformly slurry with the speed of 150-250 rev/min;
(2) pre-frothing: the cracking resistance component adding described ratio in the slurry that step (1) obtains, and the whipping agent of described ratio 1/4, stirs 20s and obtains pre-frothing slurry;
(3) second time of foaming: the foam enhancer adding described ratio in the pre-frothing slurry that step (2) obtains, stirs 30s; Then add the whipping agent of remaining 3/4, stir 10s and carry out second time of foaming, after the test block sclerosis demoulding to be foamed, cutting forms cement insulation board.
Embodiment 2:
A cement insulation board for high microsteping volume, is prepared from by the raw material containing cement, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent, foam enhancer and water, and water-cement ratio is 0.415; The per-cent that pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: pore structure conditioning agent 1%, adjustable solidification agent 0.45%, water-resisting agent 3%, water reducer 0.32%, whipping agent 8.3%, foam enhancer 3%, cracking resistance component 2.5%;
Wherein, be weight percentage 80% ultra-fine silicate cement and weight percent of described cement is the mixture that 20% aluminosulfate cement mixes;
Described pore structure conditioning agent is silicon ash;
The mixture that the citric acid of described adjustable solidification agent to be weight ratio be 1:1:4:3, Trisodium Citrate, sodium carbonate and Tai-Ace S 150 mix;
The mixture that the calcium stearate of described water-resisting agent to be weight ratio be 2:1 and resin rubber powder mix;
Described water reducer is poly carboxylic acid series water reducer;
Described whipping agent is hydrogen peroxide solution, and in this solution, the massfraction of hydrogen peroxide is 27.5%;
Described foam enhancer is ferric chloride Solution; The massfraction of this Chlorine in Solution iron is 13%;
Described cracking resistance component is basalt fibre.
Above-mentioned cement insulation board is prepared from by following method:
(1) mix: the cement of described ratio, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer are mixed with water, stir 40s uniformly slurry with the speed of 150-250 rev/min;
(2) pre-frothing: the cracking resistance component adding described ratio in the slurry that step (1) obtains, and the whipping agent of described ratio 1/4, stirs 20s and obtains pre-frothing slurry;
(3) second time of foaming: the foam enhancer adding described ratio in the pre-frothing slurry that step (2) obtains, stirs 30s; Then add the whipping agent of remaining 3/4, stir 10s and carry out second time of foaming, after the test block sclerosis demoulding to be foamed, cutting forms cement insulation board.
Embodiment 3:
A cement insulation board for high microsteping volume, is prepared from by the raw material containing cement, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent, foam enhancer and water, and water-cement ratio is 0.44; The per-cent that described adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: adjustable solidification agent 0.15%, water-resisting agent 2%, water reducer 0.25%, whipping agent 8.4%, foam enhancer 4%, cracking resistance component 3%;
Wherein, be weight percentage 60% ultra-fine silicate cement and weight percent of described cement is the mixture that 40% high belite aluminosulfate cement mixes;
The mixture that the citric acid of described adjustable solidification agent to be weight ratio be 1:10:4, Trisodium Citrate and Quilonum Retard mix;
Described water-resisting agent is calcium stearate;
Described water reducer is poly carboxylic acid series water reducer;
Described whipping agent is hydrogen peroxide solution, and in this solution, the massfraction of hydrogen peroxide is 27.5%;
Described foam enhancer is ferric chloride Solution; The massfraction of this Chlorine in Solution iron is 13%;
Described cracking resistance component is basalt fibre.
Above-mentioned cement insulation board is prepared from by following method:
(1) mix: the cement of described ratio, adjustable solidification agent, water-resisting agent, water reducer are mixed with water, stir 40s uniformly slurry with the speed of 150-250 rev/min;
(2) pre-frothing: the cracking resistance component adding described ratio in the slurry that step (1) obtains, and the whipping agent of described ratio 1/4, stirs 20s and obtains pre-frothing slurry;
(3) second time of foaming: the foam enhancer adding described ratio in the pre-frothing slurry that step (2) obtains, stirs 30s; Then add the whipping agent of remaining 3/4, stir 10s and carry out second time of foaming, after the test block sclerosis demoulding to be foamed, cutting forms cement insulation board.
Embodiment 4:
A cement insulation board for high microsteping volume, is prepared from by the raw material containing cement, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent, foam enhancer and water, and water-cement ratio is 0.44; The per-cent that described adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: adjustable solidification agent 0.15%, water-resisting agent 2%, water reducer 0.25%, whipping agent 8.4%, foam enhancer 4%, cracking resistance component 3.2%;
Wherein, described cement is high belite aluminosulfate cement;
The mixture that the citric acid of described adjustable solidification agent to be weight ratio be 1:10:4, Trisodium Citrate and Quilonum Retard mix;
Described water-resisting agent is calcium stearate;
Described water reducer is poly carboxylic acid series water reducer;
Described whipping agent is hydrogen peroxide solution, and in this solution, the massfraction of hydrogen peroxide is 27.5%;
Described foam enhancer is ferric chloride Solution; The massfraction of this Chlorine in Solution iron is 13%;
Described cracking resistance component is basalt fibre.
Above-mentioned cement insulation board is prepared from by following method:
(1) mix: the cement of described ratio, adjustable solidification agent, water-resisting agent, water reducer are mixed with water, stir 40s uniformly slurry with the speed of 150-250 rev/min;
(2) pre-frothing: the cracking resistance component adding described ratio in the slurry that step (1) obtains, and the whipping agent of described ratio 1/4, stirs 20s and obtains pre-frothing slurry;
(3) second time of foaming: the foam enhancer adding described ratio in the pre-frothing slurry that step (2) obtains, stirs 30s; Then add the whipping agent of remaining 3/4, stir 10s and carry out second time of foaming, after the test block sclerosis demoulding to be foamed, cutting forms cement insulation board.
Embodiment 5:
A cement insulation board for high microsteping volume, is prepared from by the raw material containing cement, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent, foam enhancer and water, and water-cement ratio is 0.42; The per-cent that described pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: pore structure conditioning agent 2%, adjustable solidification agent 0.1%, water-resisting agent 7.1%, water reducer 0.27%, whipping agent 8.7%, foam enhancer 5.1%, cracking resistance component 2%;
Wherein, be weight percentage 95% ultra-fine aluminosulfate cement and total amount per-cent of described cement is the mixture that 5% ultra-fine silicate cement mixes;
Described pore structure conditioning agent is silicon ash;
The mixture that the Trisodium Citrate of described adjustable solidification agent to be weight ratio be 5:2 and Quilonum Retard mix;
The mixture that the calcium stearate of described water-resisting agent to be weight ratio be 1:1 and polymer emulsion mix;
Described water reducer is poly carboxylic acid series water reducer;
Described whipping agent is hydrogen peroxide solution, and in this solution, the massfraction of hydrogen peroxide is 27.5%;
Described foam enhancer is ferric chloride Solution; The massfraction of this Chlorine in Solution iron is 13%;
Described cracking resistance component is PP fiber.
Above-mentioned cement insulation board is prepared from by following method:
(1) mix: the cement of described ratio, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer are mixed with water, stir 40s uniformly slurry with the speed of 150-250 rev/min;
(2) pre-frothing: the cracking resistance component adding described ratio in the slurry that step (1) obtains, and the whipping agent of described ratio 1/4, stirs 20s and obtains pre-frothing slurry;
(3) second time of foaming: the foam enhancer adding described ratio in the pre-frothing slurry that step (2) obtains, stirs 30s; Then add the whipping agent of remaining 3/4, stir 10s and carry out second time of foaming, after the test block sclerosis demoulding to be foamed, cutting forms cement insulation board.
Embodiment 6:
A cement insulation board for high microsteping volume, is prepared from by the raw material containing cement, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent, foam enhancer and water, and water-cement ratio is 0.4; The per-cent that described pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: pore structure conditioning agent 4%, adjustable solidification agent 10.3%, water-resisting agent 7.1%, water reducer 0.33%, whipping agent 10.7%, foam enhancer 8.3%, cracking resistance component 2%;
Wherein, be weight percentage 95% ultra-fine silicate cement and weight percent of described cement is the mixture that 5% ultra-fine aluminosulfate cement mixes;
Described pore structure conditioning agent is silicon ash;
The mixture that the anhydrite of described adjustable solidification agent to be weight ratio be 40:1:1, Tai-Ace S 150 and Trisodium Citrate mix;
The mixture that the calcium stearate of described water-resisting agent to be weight ratio be 2:1 and polymer emulsion mix;
Described water reducer is poly carboxylic acid series water reducer;
Described whipping agent is hydrogen peroxide solution, and in this solution, the massfraction of hydrogen peroxide is 27.5%;
Described foam enhancer is ferric chloride Solution; The massfraction of this Chlorine in Solution iron is 13%;
Described cracking resistance component is PP fiber.
Above-mentioned cement insulation board is prepared from by following method:
(1) mix: the cement of described ratio, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer are mixed with water, stir 40s uniformly slurry with the speed of 150-250 rev/min;
(2) pre-frothing: the cracking resistance component adding described ratio in the slurry that step (1) obtains, and the whipping agent of described ratio 1/4, stirs 20s and obtains pre-frothing slurry;
(3) second time of foaming: the foam enhancer adding described ratio in the pre-frothing slurry that step (2) obtains, stirs 30s; Then add the whipping agent of remaining 3/4, stir 10s and carry out second time of foaming, after the test block sclerosis demoulding to be foamed, cutting forms cement insulation board.
Detect the performance of the cement insulation board that embodiment 1-6 obtains
Detect the cement insulation board that embodiment 1-6 obtains according to GB/T11969-2008 " steam-pressing aero-concrete method for testing performance " and GB/T10295-2008 " the mensuration heat flowmeter method of Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristics ", result is as shown in table 1:
Table 1: obstructed embodiment warming plate the performance test results
As shown in Table 1, the cement foaming insulation board that technical solution of the present invention obtains, has stable quality, lower thermal conductivity, higher ultimate compression strength and lower volume density, meets national A grade standard.
Above-mentioned example just for technical conceive of the present invention and technical characterstic are described, can not limit the scope of the invention with this.The equivalent transformation that all essence according to the present invention is done or modification, all should be encompassed within protection scope of the present invention.
Claims (10)
1. the cement insulation board of a high microsteping volume, it is characterized in that, be prepared from by the raw material containing cement, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent, foam enhancer and water, water-cement ratio is 0.3 ~ 0.6; The per-cent that described pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: pore structure conditioning agent 0 ~ 4%, adjustable solidification agent 0.1% ~ 12%, water-resisting agent 1% ~ 10%, water reducer 0.05% ~ 0.5%, cracking resistance component 1.5% ~ 4%, whipping agent 8% ~ 12%, foam enhancer 0 ~ 10%.
2. warming plate according to claim 1, it is characterized in that, the per-cent that described pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer, cracking resistance component, whipping agent and foam enhancer account for cement quality is respectively: pore structure conditioning agent 1 ~ 4%, adjustable solidification agent 0.1% ~ 10%, water-resisting agent 2% ~ 8%, water reducer 0.2% ~ 0.4%, cracking resistance component 2% ~ 4%, whipping agent 8% ~ 11%, foam enhancer 3 ~ 8%.
3. warming plate according to claim 1, it is characterized in that, described cement is any one in ordinary Portland cement, ultra-fine silicate cement, high belite aluminosulfate cement, aluminosulfate cement and ultra-fine aluminosulfate cement, or two kinds of mixtures mixed with arbitrary proportion; Described ultra-fine silicate cement and ultra-fine aluminosulfate cement, specific surface area is 600m
2/ kg ~ 800m
2/ kg.
4. warming plate according to claim 1, is characterized in that, described pore structure conditioning agent is silicon ash.
5. warming plate according to claim 1, is characterized in that, described adjustable solidification agent is two or more mixture mixed with arbitrary proportion in anhydrite, sodium carbonate, Tai-Ace S 150, Quilonum Retard, citric acid or Trisodium Citrate.
6. warming plate according to claim 1, is characterized in that, described water-resisting agent is the one in polymer emulsion, latex powder, resin rubber powder or calcium stearate, or two kinds of mixtures mixed with arbitrary proportion.
7. warming plate according to claim 1, is characterized in that, described water reducer is poly carboxylic acid series water reducer.
8. warming plate according to claim 1, is characterized in that, described cracking resistance component is PP fiber, PVA fiber, glass fibre or basalt fibre.
9. warming plate according to claim 1, is characterized in that, described whipping agent is chemical foaming agent is hydrogen peroxide solution, and in described hydrogen peroxide solution, the massfraction of hydrogen peroxide is 20% ~ 30%; Described foam enhancer is ferric chloride Solution, and in described ferric chloride Solution, the massfraction of iron(ic) chloride is 10% ~ 20%.
10. the substep foaming preparation method of the warming plate described in any one of claim 1-9, comprises the following steps:
(1) mix: the cement of described ratio, pore structure conditioning agent, adjustable solidification agent, water-resisting agent, water reducer are mixed with water, stir 30 ~ 50s uniformly slurry with the speed of 150-250 rev/min;
(2) pre-frothing: the cracking resistance component adding described ratio in the slurry that step (1) obtains, and the whipping agent of described ratio 1/4, stirs 10 ~ 30s and obtains pre-frothing slurry;
(3) second time of foaming: the foam enhancer adding described ratio in the pre-frothing slurry that step (2) obtains, stirs 10 ~ 40s; Then add the whipping agent of remaining 3/4, stir 5 ~ 15s and carry out second time of foaming, after the test block sclerosis demoulding to be foamed, cutting forms cement insulation board.
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| CN108794061A (en) * | 2018-08-20 | 2018-11-13 | 北京新时代寰宇科技发展有限公司 | A kind of foam concrete and its preparation method and application containing composite blend |
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Application publication date: 20160106 |