CN102910849B - Modified diatomite and preparation method of modified diatomite preparation method, as well as compound external wall insulation material containing modified diatomite and preparation method of material - Google Patents
Modified diatomite and preparation method of modified diatomite preparation method, as well as compound external wall insulation material containing modified diatomite and preparation method of material Download PDFInfo
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Abstract
The invention provides modified diatomite with the tap density of 450-490kg/m<3> and a preparation method of the modified diatomite. The preparation method of the modified diatomite specifically comprises the following steps: obtaining diatomite, adding sodium carbonate, heating, activating at the high temperature of 900-1100 DEG C, and crushing to obtain the modified diatomite. The modified diatomite is high in whiteness, low in tap density, high in strength and good in adsorption performance and insulation performance. In addition, the invention further provides a compound external wall insulation material and a preparation method of the compound external wall insulation material. The compound external wall insulation material comprises an independent G type material and an independent Y type material, wherein the G type material comprises the modified diatomite with the tap density of 450-490kg/m<3>, expanded perlite, calcium hydroxide, sepiolite velvet and a first slow release agent; and the Y type material comprises silica sol and a second slow release agent. The compound external wall insulation material has good insulation and flame-retardant effects, and is low in organic content, high in safe and environmental performance, high in strength and good in integrity.
Description
Technical field
The present invention relates to field of material technology, particularly relate to a kind of modification infusorial earth and preparation method thereof and its preparation Compound outer wall heat insulation material in application.
Background technology
Heat preserving and insulating material and goods affect the important factor of building energy conservation one.Use thermal insulation material under construction, significantly can reduce the consumption of the energy, thus reduce environmental pollution and Greenhouse effect.
China's building energy conservation wall thermal insulation technology and applying of product are started in the mid-80 in last century, the material adopted at that time mainly contains: perlite, composition silicate, sepiolite, with the heat preservation mortar for outer wall product etc. of organosilicon compound, through the development of nearly 30 years, China's building thermal insulation material is progressively diversified, and lagging material conventional at present mainly contains: pearlstone, mineral wool, glass wool, benzene plate, refractory fibre, heat-insulating calcium silicate product etc.
Wherein, the heat insulation effect of benzene plate is best, therefore, current market is applied also extensive.Statistics are had to show, styrofoam (EPS plate) external insulating system for thinly plastered external wall, glue powder polyphenyl granule exterior wall outer heat preservation system and extruded polystyrene board (XPS plate) external thermal insulation system are the systems that on market, application quantity is maximum, substantially occupy the share in wall Surgery therapy market more than 75%.In addition, the fixing polystyrene block steel wire net rack plate exterior wall external heat preservation system of machinery, polystyrene block cast-in-place concrete exterior wall outer heat preservation system and urethane (cast-in-place, spraying and plate class) external thermal insulation system approximately occupy the market share of 20%, and other system total amount accounts for 5%.
But the heat-insulating property of material becomes negative correlation with flame retardant properties, heat-insulating property is better, and flame retardant properties is lower.In recent years, the fire caused because of external-wall heat-insulation material low fire-retardant happens occasionally, and a lot of fire caused because polyphenyl plate heat preserving layer catches fire has occurred in the whole nation.Therefore, improve lagging material flame retardant properties and day by day become study hotspot.
Diatomite is a kind of siliceous rock, is the accumulational stage through about 1 to 2 ten thousand year after the one-celled plants death being referred to as diatom, the diatom cumulose soil mineral deposit of a kind of fossil of formation.The main component of natural diatomaceous earth is SiO
2, nonflammable, and diatomite stable chemical nature, not containing poisonous chemical substance, and self there is the adsorbable impurity of microvoid structure purify air, good heat insulating, can sound insulation, heat insulation.Therefore, the use containing diatomite composition building materials is in recent years in the trend progressively risen.
But, adopt common diatomite to there is tap density large, the shortcoming that intensity is weak, although and improve tap density and strongthener intensity can greatly can reduce the heat retaining property of material.In order to solve these shortcomings, in the existing material of construction containing diatomite composition, mostly with the addition of a large amount of organic substances, ensureing under the prerequisite that tap density is constant, to improve intensity.But the interpolation of organic substance, while reducing diatomite content, not only greatly reduce the flame retardant properties of building materials, and self microvoid structure diatomaceous can be blocked reduce diatomite to the adsorptive power of objectionable impurities, and discharge objectionable impurities.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of modification infusorial earth and preparation method thereof and its application in preparation Compound outer wall heat insulation material, it is little that modification infusorial earth provided by the invention has tap density, intensity is high, the feature that insulation effect is good, do not add organic substance with the external-wall heat-insulation material that it is prepared for raw material, and heat insulating ability is good, intensity is high.
The invention provides a kind of modification infusorial earth, tap density is 450kg/m
3~ 490kg/m
3.
Tap density provided by the invention is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth be divided into following steps:
Step 1, acquisition diatomite;
Step 2, get diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
Wherein, diatomaceous tap density is not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Present invention also offers a kind of tap density is 450kg/m
3~ 490kg/m
3modification infusorial earth, its preparation method is divided into following steps:
Step 1, acquisition diatomite;
Step 2, get diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Preferably, diatomite can be commercially available, and also can mode provided by the invention prepare, tap density is not less than 500kg/m
3diatomaceous any feasible preparation method all within protection scope of the present invention, the present invention is in this no limit.
Preferably, tap density is not less than 500kg/m
3diatomaceous preparation method comprise the following steps:
Step 1, get diatomite original ore, weathering decomposes airing, obtains block diatomite;
Step 2, get block diatomite and to pulverize and dry, to obtain final product.
High-temperature calcination under aerobic conditions is the effective means removing organic impurity in diatomite, diatomaceous particle keeps 600 seconds under 600 DEG C ~ 900 DEG C conditions, then keep 40 ~ 60 seconds under 900 DEG C ~ 1100 DEG C conditions, under the condition of high temperature aerobic, organism in diatomite can be lost by burning, and diatomaceous whiteness is improved; Further, under the high temperature conditions, the materials such as the moisture in diatomite gasify rapidly, thus the microvoid structure of diatom are cleaned and makes the corner angle of microvoid structure obtain passivation, thus reduce diatomaceous tap density; In addition, diatomaceous main component is silicon-dioxide, and the softening temperature of crystalline silica is 600 DEG C, and the softening temperature of non-crystalline silica is 900 DEG C ~ 1100 DEG C, and the fusing point of sodium carbonate be 850 DEG C, softening temperature is at 400 DEG C ~ 600 DEG C; When being heated to 900 DEG C ~ 1100 DEG C, can there is melting in sodium carbonate, and produce the water glass of micro glass in a diatom surface, thickened the position that a diatom surface is thin, the intensity of modification infusorial earth is improved.
On this basis, the invention provides tap density is 450kg/m
3~ 490kg/m
3modification infusorial earth preparation Compound outer wall heat insulation material in application.
As preferably, tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth be divided into following steps:
Step 1, acquisition diatomite;
Step 2, get diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Preferably, diatomite can be commercially available, and also can mode provided by the invention prepare, tap density is not less than 500kg/m
3diatomaceous any feasible preparation method all within protection scope of the present invention, the present invention is in this no limit.
Preferably, tap density is not less than 500kg/m
3diatomaceous preparation method comprise the following steps:
Step 1, get diatomite original ore, weathering decomposes airing, obtains block diatomite;
Step 2, get block diatomite and to pulverize and dry, to obtain final product.
Present invention also offers a kind of Compound outer wall heat insulation material, by independently G shaped material and independently Y shaped material form;
It is 450kg/m that G shaped material comprises tap density
3~ 490kg/m
3modification infusorial earth, pearlstone, calcium hydroxide, sepiolite cashmere and the first sustained release dosage;
Y shaped material comprises silicon sol and the second sustained release dosage.
Preferably, tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth comprise the following steps:
Step 1: obtain diatomite;
Step 2: get diatomite, adds sodium carbonate, activates after heating under the high temperature of 900 DEG C ~ 1100 DEG C, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Preferably, the first sustained release dosage is HPMC or ethyl cellulose.
Preferably, the second sustained release dosage is HPMC or ethyl cellulose.
Preferably, the mass ratio of G shaped material and Y shaped material is 10:1.
Present invention also offers a kind of preparation method of Compound outer wall heat insulation material, be divided into following steps:
Step 1: get silicon sol and mix with the second sustained release dosage, obtained Y shaped material;
Step 2: getting tap density is 450kg/m
3~ 490kg/m
3modification infusorial earth, pearlstone, calcium hydroxide, sepiolite cashmere and the first sustained release dosage, mix, prepare G shaped material.
Preferably, the first sustained release dosage is HPMC or ethyl cellulose.
Preferably, the second sustained release dosage is HPMC or ethyl cellulose.
Preferably, tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth comprise the following steps:
Step 1: obtain diatomite;
Step 2: get diatomite, adds sodium carbonate, activates after heating under the high temperature of 900 DEG C ~ 1100 DEG C, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
In Compound outer wall heat insulation material provided by the invention, only containing trace and not there is volatile organic matter, and by the intensity to diatomaceous modification reinforcement material; Reduce the use of additive, add modification infusorial earth content in the material, thus avoid the interpolation of large amount of organic in traditional material and cause the blocking of diatom microvoid structure, reduce flame retardant resistance, and organic materials has volatility mostly, also objectionable impurities can be discharged.
On this basis, present invention also offers a kind of Compound outer wall heat insulation material, by independently G shaped material and independently Y shaped material form;
G shaped material is made up of following component, each component be calculated in mass percent into:
Pearlstone 30% ~ 40%;
Modification infusorial earth 30% ~ 40%;
Calcium hydroxide 18% ~ 30%;
Sepiolite cashmere 1% ~ 5%;
First sustained release dosage 0.3% ~ 1%;
Y shaped material is made up of the second sustained release dosage and silicon sol, and the mass ratio of the second sustained release dosage and silicon sol is 0.1 ~ 1:100.
Preferably, tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth be divided into following steps:
Step 1: obtain diatomite;
Step 2: get diatomite, adds sodium carbonate, activates after heating under the high temperature of 900 DEG C ~ 1100 DEG C, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Preferably, the first sustained release dosage is HPMC or ethyl cellulose.
Preferably, the second sustained release dosage is HPMC or ethyl cellulose.
Preferably, the mass ratio of G shaped material and Y shaped material is 10:1.
Present invention also offers a kind of preparation method of Compound outer wall heat insulation material, the method comprises the steps:
Step 1:G shaped material component is calculated in mass percent, and comprising:
Pearlstone 30% ~ 40%;
Modification infusorial earth 30% ~ 40%;
Calcium hydroxide 18% ~ 30%;
Sepiolite cashmere 1% ~ 5%;
First sustained release dosage 0.3% ~ 1%;
Wherein, the tap density of modification infusorial earth is 450kg/m
3~ 490kg/m
3;
Get each component, mix, obtained G shaped material;
Step 2: get the second sustained release dosage and silicon sol, mix, obtained Y shaped material;
Wherein, the mass ratio of the second sustained release dosage and silicon sol is 0.1 ~ 1: 100.
Preferably, tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth comprise the following steps:
Step 1: obtain diatomite;
Step 2: get diatomite, adds sodium carbonate, activates after heating under the high temperature of 900 DEG C ~ 1100 DEG C, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Preferably, the first sustained release dosage is HPMC or ethyl cellulose.
Preferably, the second sustained release dosage is HPMC or ethyl cellulose.
Preferably, the mass ratio of G shaped material and Y shaped material is 10:1.
Compared with prior art, the invention provides a kind of modification infusorial earth and preparation method thereof, by the employing of the activating process in preparation process and sodium carbonate, at high temperature rapidly organism is burnt and lose, and, a large amount of gasification substance under high temperature action, diatomaceous microvoid structure is cleaned, and makes the diatomaceous micropore prepared have higher integrity, simultaneously, because the impurity in micropore is removed, modified diatomite has better intensity and whiteness.Diatomite, under the effect of sodium carbonate and high temperature, can make a sodium carbonate diatom surface produce the water glass of micro glass, thicken the position that a diatom surface is thin, the intensity of modification infusorial earth is improved.Modification infusorial earth provided by the invention, having that whiteness is high, tap density is little, while intensity high feature, has good absorption property and heat-insulating property.Further, present invention also offers and adopt the Compound outer wall heat insulation material prepared of modification infusorial earth, the insulation of this material and flame retardant effect good, and intensity is large, good integrity.Further, this lagging material only adds and does not have volatile organic substance on a small quantity, ensure that this material can not volatilize obnoxious flavour, more safety and environmental protection; In addition, lagging material provided by the invention is easy to use, sound insulation, waterproof and heat insulation, insulation, feature that permeability is good.Experiment shows: the tap density of modification infusorial earth provided by the invention is 450kg/m
3~ 490kg/m
3, reduce by 10% ~ 35.7% than common diatomite.Compound outer wall heat insulation material provided by the invention is through qualification, and thermal conductivity is 0.0524W/(m.k), be less than the 0.070W/(m.k of national Specification), and its combustionproperty rank can reach A level, and purifying formaldehyde efficiency is 83.4%.
Accompanying drawing explanation
Figure 1 shows that the Electronic Speculum figure of diatom individuality in the diatomite original ore before processing, enlargement ratio is 1000000 times;
Figure 2 shows that tap density is not less than 500kg/m before modified
3diatomite in the Electronic Speculum figure of diatom individuality, enlargement ratio is 1000000 times;
Figure 3 shows that the tap density that the embodiment of the present invention 1 ~ 3 provides is 450kg/m
3~ 490kg/m
3modification infusorial earth in the Electronic Speculum figure of diatom individuality, enlargement ratio is 1000000 times.
Embodiment
The invention provides a kind of modification infusorial earth and preparation method thereof and its application in preparation Compound outer wall heat insulation material, those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Method of the present invention and application are described by preferred embodiment, related personnel obviously can change methods and applications herein or suitably changes and combination not departing from content of the present invention, spirit and scope, realizes and applies the technology of the present invention.
Originally the invention provides a kind of modification infusorial earth, tap density is 450kg/m
3~ 490kg/m
3.
The invention provides to tap density be 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth be divided into following steps: first, obtain diatomite; Then, get described diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and described diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Present invention also offers a kind of tap density is 450kg/m
3~ 490kg/m
3modification infusorial earth, its preparation method is divided into following steps:
Step 1, acquisition diatomite;
Step 2, get diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Diatomite can be commercially available, and also can mode provided by the invention prepare, tap density is not less than 500kg/m
3diatomaceous any feasible preparation method all within protection scope of the present invention, the present invention is in this no limit.
Tap density is not less than 500kg/m
3diatomaceous preparation method comprise the following steps: first, get diatomite original ore, weathering decompose airing, obtain block diatomite; Then, get block diatomite and pulverize and drying, to obtain final product.
Aerobic high-temperature calcination is the effective means of organics removal, therefore, first diatomaceous particle keeps 600 seconds under 600 DEG C ~ 900 DEG C conditions, then keeps 40 ~ 60 seconds under 900 DEG C ~ 1100 DEG C conditions, organism in diatomite can be lost by burning, and whiteness is improved and tap density declines; In addition, the main component of diatom is silicon-dioxide, and the softening temperature of crystalline silica is 600 DEG C, and the softening temperature of non-crystalline silica is 900 DEG C ~ 1100 DEG C, and the fusing point of sodium carbonate be 850 DEG C, softening temperature is at 400 DEG C ~ 600 DEG C, therefore, when the temperature condition of selection 900 DEG C ~ 1100 DEG C, now, can melting be there is in sodium carbonate, and the water glass of micro glass is produced in a diatom surface, thicken the position that a diatom surface is thin, the intensity of modification infusorial earth is improved.
Present invention also offers a kind of tap density is 450kg/m
3~ 490kg/m
3the application of modification infusorial earth in preparation room inner decoration material.
Tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth be divided into following steps: first, obtain diatomite; Then, get described diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and described diatomaceous mass ratio are 1 ~ 3:100.; The temperature of heating is 600 DEG C ~ 900 DEG C.
Diatomite can be commercially available, and also can mode provided by the invention prepare, tap density is not less than 500kg/m
3diatomaceous any feasible preparation method all within protection scope of the present invention, the present invention is in this no limit.
Tap density is not less than 500kg/m
3diatomaceous preparation method comprise the following steps:
First, get diatomite original ore, weathering decomposes airing, obtains block diatomite; Then, get block diatomite and pulverize and drying, to obtain final product.
Present invention also offers a kind of Compound outer wall heat insulation material, by independently G shaped material and independently Y shaped material form;
It is 450kg/m that G shaped material comprises tap density
3~ 490kg/m
3modification infusorial earth, pearlstone, calcium hydroxide, sepiolite cashmere and the first sustained release dosage;
Y shaped material comprises silicon sol and the second sustained release dosage.
Wherein, tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth comprise the following steps: first, obtain diatomite; Then, get diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C; First sustained release dosage is HPMC or ethyl cellulose; Second sustained release dosage is HPMC or ethyl cellulose.
Diatomite can be commercially available, and also can mode provided by the invention prepare, tap density is not less than 500kg/m
3diatomaceous any feasible preparation method all within protection scope of the present invention, the present invention is in this no limit.
Tap density is not less than 500kg/m
3diatomaceous preparation method comprise the following steps: first, get diatomite original ore, weathering decompose airing, obtain block diatomite; Then, get block diatomite and pulverize and drying, to obtain final product.
For obtaining better intensity, the mass ratio of G shaped material and Y shaped material is 10:1.
Present invention also offers a kind of preparation method of Compound outer wall heat insulation material, be divided into following steps: first, get silicon sol and mix with the second sustained release dosage, obtained Y shaped material; Secondly, getting tap density is 450kg/m
3~ 490kg/m
3modification infusorial earth, pearlstone, calcium hydroxide, sepiolite cashmere and the first sustained release dosage, mix, prepare G shaped material.
Preferably, the first sustained release dosage is HPMC or ethyl cellulose.
Preferably, the second sustained release dosage is HPMC or ethyl cellulose.
Wherein, tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth comprise the following steps: first, obtain diatomite; Then, get diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Diatomite can be commercially available, and also can mode provided by the invention prepare, tap density is not less than 500kg/m
3diatomaceous any feasible preparation method all within protection scope of the present invention, the present invention is in this no limit.
Tap density is not less than 500kg/m
3diatomaceous preparation method comprise the following steps: first, get diatomite original ore, weathering decompose airing, obtain block diatomite; Then, get block diatomite and pulverize and drying, to obtain final product.
In material provided by the invention, only containing trace and not there is volatile organic matter, and by the intensity to diatomaceous modification reinforcement material; Reduce the use of additive, add modification infusorial earth content in the material, thus avoid the interpolation of large amount of organic in traditional material and cause the blocking of diatom microvoid structure, reduce flame retardant resistance, and organic materials has volatility mostly, also objectionable impurities can be discharged.
On this basis, present invention also offers a kind of Compound outer wall heat insulation material, by independently G shaped material and independently Y shaped material form;
G shaped material is made up of following component, each component be calculated in mass percent into:
Pearlstone 30% ~ 40%;
Modification infusorial earth 30% ~ 40%;
Calcium hydroxide 18% ~ 30%;
Sepiolite cashmere 1% ~ 5%;
First sustained release dosage 0.3% ~ 1%;
Y shaped material is made up of the second sustained release dosage and silicon sol, and the mass ratio of the second sustained release dosage and silicon sol is 0.1 ~ 1:100.
Wherein, tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth be divided into following steps: first, obtain diatomite; Then, get diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Diatomite can be commercially available, and also can mode provided by the invention prepare, tap density is not less than 500kg/m
3diatomaceous any feasible preparation method all within protection scope of the present invention, the present invention is in this no limit.
Tap density is not less than 500kg/m
3diatomaceous preparation method comprise the following steps: first, get diatomite original ore, weathering decompose airing, obtain block diatomite; Then, get block diatomite and pulverize and drying, to obtain final product.
For reaching better slow release effect, the first sustained release dosage is HPMC or ethyl cellulose.Second sustained release dosage is HPMC or ethyl cellulose.
In order to obtain better intensity, the mass ratio of G shaped material and Y shaped material is 10:1.
Present invention also offers a kind of preparation method of Compound outer wall heat insulation material, the method is specially:
First, get G shaped material component and be calculated in mass percent, comprising:
Pearlstone 30% ~ 40%;
Modification infusorial earth 30% ~ 40%;
Calcium hydroxide 18% ~ 30%;
Sepiolite cashmere 1% ~ 5%;
First sustained release dosage 0.3% ~ 1%;
Wherein, the tap density of modification infusorial earth is 450kg/m
3~ 490kg/m
3;
By each component, mix, obtained G shaped material;
Then, get the second sustained release dosage and silicon sol, mix, obtained Y shaped material;
Wherein, the mass ratio of the second sustained release dosage and silicon sol is 0.1 ~ 1: 100.
Tap density is 450kg/m
3~ 490kg/m
3the preparation method of modification infusorial earth comprise the following steps: first, obtain diatomite; Then, get diatomite, add sodium carbonate, activate under the high temperature of 900 DEG C ~ 1100 DEG C after heating, broken, to obtain final product;
In the method adopt diatomaceous tap density to be not less than 500kg/m
3; Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 DEG C ~ 900 DEG C.
Diatomite can be commercially available, and also can mode provided by the invention prepare, tap density is not less than 500kg/m
3diatomaceous any feasible preparation method all within protection scope of the present invention, the present invention is in this no limit.
Tap density is not less than 500kg/m
3diatomaceous preparation method comprise the following steps: first, get diatomite original ore, weathering decompose airing, obtain block diatomite; Then, get block diatomite and pulverize and drying, to obtain final product.
In order to reach better slow release effect, the first sustained release dosage is HPMC or ethyl cellulose.Second sustained release dosage is HPMC or ethyl cellulose.
In order to obtain better intensity, the mass ratio of G shaped material and Y shaped material is 10:1.
Modification infusorial earth provided by the invention, while having adiabatic and flame retardant effect, has the advantages that tap density is little, intensity is large.Further, present invention also offers the Compound outer wall heat insulation material adopting modification infusorial earth to prepare, this lagging material only containing not having volatile organism on a small quantity, ensure that insulation and the flame retardant effect of this material, and intensity is large, good integrity.Further, lagging material provided by the invention is easy to use, simultaneously can not discharge objectionable impurities, have and purify air, sound insulation, waterproof and heat insulation, insulation, feature that permeability is good.
In modification infusorial earth provided by the invention and preparation method thereof and its application in preparation Compound outer wall heat insulation material, raw materials used and reagent all can be buied by market.
Below in conjunction with embodiment, set forth the present invention further:
Embodiment 1 tap density is 450kg/m
3the preparation of modification infusorial earth
Get diatomite original ore, decompose airing through the weathering of a year, select the part of moisture content below 15% to pulverize, be crushed to 30 order ~ 120 orders; Further drying is carried out to it simultaneously, make moisture content be reduced to 4% ~ 6%; Then desired particle size 80 ~ 120 order salable product are selected by pneumatic separation device.Obtain diatomite, adopt the measuring method of national standard to detect, after measured, its tap density is 500kg/m
3.
Getting tap density is 500kg/m
3diatomite, be mixed into the sodium carbonate that mass percent is 1%, 600 DEG C of high-temperature calcinations 600 seconds, 900 DEG C activate 60 seconds, make the surface of diatomite micropore produce micro glass water glass, thus thicken thin position, a diatom surface, add the intensity of the rear diatom individuality of preparation.Then, by the windmills of 2000 turns, diatomite is broken, selection by winnowing goes out 325 order ~ 3000 object parts and is modification infusorial earth.
The tap density adopted in the present embodiment is 500kg/m
3diatomite can for commercially available or obtained by method provided by the invention.
Detect with the measuring method of national standard, after measured, the tap density of modification infusorial earth is: 450kg/m
3.
Embodiment 2 tap density is 470kg/m
3the preparation of modification infusorial earth
Get diatomite original ore, decompose airing through the weathering of a year, select the part of moisture content below 15% to pulverize, be crushed to 30 order ~ 120 orders; Further drying is carried out to it simultaneously, make moisture content be reduced to 4% ~ 6%; Then desired particle size 80 ~ 120 order salable product are selected by pneumatic separation device.Obtain diatomite, detect with the measuring method of national standard, after measured, its tap density is 600kg/m
3.
Getting tap density is 600kg/m
3diatomite, be mixed into the sodium carbonate that mass percent is 2%, 750 DEG C of high-temperature calcinations 600 seconds, 1000 DEG C activate 50 seconds, make the surface of diatomite micropore produce micro glass water glass, thus thicken thin position, a diatom surface, add the intensity of the rear diatom individuality of preparation.Then, by the windmills of 2000 turns, diatomite is broken, selection by winnowing goes out 325 order ~ 3000 object parts and is modification infusorial earth.
The tap density adopted in the present embodiment is 600kg/m
3diatomite can for commercially available or obtained by the method for putting provided by the invention.
Detect with the measuring method of national standard, after measured, the tap density of modification infusorial earth is: 470kg/m
3.
Embodiment 3 tap density is 490kg/m
3the preparation of modification infusorial earth
Get diatomite original ore, decompose airing through the weathering of a year, select the part of moisture content below 15% to pulverize, be crushed to 30 order ~ 120 orders; Further drying is carried out to it simultaneously, make moisture content be reduced to 4% ~ 6%; Then desired particle size 80 ~ 120 order salable product are selected by pneumatic separation device.Obtain diatomite, detect with the measuring method of national standard, after measured, its tap density is 750kg/m
3.
Getting tap density is 750kg/m
3diatomite, be mixed into the sodium carbonate that mass percent is 3%, 900 DEG C of high-temperature calcinations 600 seconds, 1100 DEG C activate 40 seconds, make the surface of diatomite micropore produce micro glass water glass, thus thicken thin position, a diatom surface, add the intensity of the rear diatom individuality of preparation.Then, by the windmills of 2000 turns, diatomite is broken, selection by winnowing goes out 325 order ~ 3000 object parts and is modification infusorial earth.
The tap density adopted in the present embodiment is 750kg/m
3diatomite be commercially available or obtained by the method for putting provided by the invention.
Detect with the measuring method of national standard, after measured, the tap density of modification infusorial earth is: 490kg/m
3.
The quality examination of embodiment 4 modification infusorial earth provided by the invention
In diatomite original ore before processing, as shown in Figure 1, tap density is not less than 500kg/m to the Electronic Speculum figure of diatom individuality before modified
3diatomite in diatom individuality Electronic Speculum figure as shown in Figure 2, the tap density that the embodiment of the present invention 1 ~ 3 provides is 450kg/m
3~ 490kg/m
3the individual Electronic Speculum figure of diatom of modification infusorial earth as shown in Figure 1.Can significantly be found out by figure, the tap density adopting method provided by the invention obtained is 450kg/m
3~ 490kg/m
3in modification infusorial earth, the microvoid structure of diatom individuality is more abundant, complete, penetrating.Thus reducing the tap density of modification infusorial earth, the increase of microvoid structure simultaneously makes this modification infusorial earth have better adsorption effect.
National standard is adopted to be 450kg/m to the tap density that the embodiment of the present invention 1 ~ 3 provides
3~ 490kg/m
3the physicochemical property of modification infusorial earth detects, and result is as shown in table 1:
Table 1 modification infusorial earth detects foundation and detected result
Result shows, tap density prepared by the method provided with the embodiment of the present invention is 450kg/m
3~ 490kg/m
3the quality of modification infusorial earth meets the requirement of national standard.
The preparation of embodiment 5G shaped material
Prepare according to following component, each component be calculated in mass percent into:
Pearlstone 40%;
Modification infusorial earth 40%;
Calcium hydroxide 18%;
Sepiolite cashmere 2%;
HPMC 1%.
Wherein, the method preparation that modification infusorial earth is provided by the embodiment of the present invention 1 ~ 3, tap density is 450kg/m
3~ 490kg/m
3.
Said components is dropped in stirrer successively, notices that throwing sprinkles even, to stir.Stir after 15 ~ 20 minutes, packaging: be G shaped material.
The preparation of embodiment 6G shaped material
Prepare according to following component, each component be calculated in mass percent into:
Pearlstone 39%;
Modification infusorial earth 38.5%;
Calcium hydroxide 18%;
Sepiolite cashmere 4%;
HPMC 0.5%.
Wherein, the method preparation that modification infusorial earth is provided by the embodiment of the present invention 1 ~ 3, tap density is 450kg/m
3~ 490kg/m
3.
Said components is dropped in stirrer successively, notices that throwing sprinkles even, to stir.Stir after 15 ~ 20 minutes, packaging: be G shaped material.
The preparation of embodiment 7G shaped material
Prepare according to following component, each component be calculated in mass percent into:
Pearlstone 30%;
Modification infusorial earth 34.7%;
Calcium hydroxide 30%;
Sepiolite cashmere 5%;
HPMC 0.3%.
Wherein, the method preparation that modification infusorial earth is provided by the embodiment of the present invention 1 ~ 3, tap density is 450kg/m
3~ 490kg/m
3.
Said components is dropped in stirrer successively, notices that throwing sprinkles even, to stir.Stir after 15 ~ 20 minutes, packaging: be G shaped material.
The preparation of embodiment 8G shaped material
Prepare according to following component, each component be calculated in mass percent into:
Pearlstone 34.7%;
Modification infusorial earth 30%;
Calcium hydroxide 30%;
Sepiolite cashmere 5%;
Ethyl cellulose 0.3%.
Wherein, the method preparation that modification infusorial earth is provided by the embodiment of the present invention 1 ~ 3, tap density is 450kg/m
3~ 490kg/m
3.
Said components is dropped in stirrer successively, notices that throwing sprinkles even, to stir.Stir after 15 ~ 20 minutes, packaging: be G shaped material.
The preparation of embodiment 9G shaped material
Prepare according to following component, each component be calculated in mass percent into:
Pearlstone 40%;
Modification infusorial earth 33%;
Calcium hydroxide 24%;
Sepiolite cashmere 2.5%;
Ethyl cellulose 0.5%.
Wherein, the method preparation that modification infusorial earth is provided by the embodiment of the present invention 1 ~ 3, tap density is 450kg/m
3~ 490kg/m
3.
Said components is dropped in stirrer successively, notices that throwing sprinkles even, to stir.Stir after 15 ~ 20 minutes, packaging: be G shaped material.
The preparation of embodiment 10G shaped material
Prepare according to following component, each component be calculated in mass percent into:
Pearlstone 33%;
Modification infusorial earth 40%;
Calcium hydroxide 25.5%;
Sepiolite cashmere 1%;
Ethyl cellulose 0.5%.
Wherein, the method preparation that modification infusorial earth is provided by the embodiment of the present invention 1 ~ 3, tap density is 450kg/m
3~ 490kg/m
3.
Said components is dropped in stirrer successively, notices that throwing sprinkles even, to stir.Stir after 15 ~ 20 minutes, packaging: be G shaped material.
The preparation of embodiment 11Y shaped material
Prepare according to following component, each component be calculated in mass percent into:
Silicon sol 99%;
HPMC 1%.
Silicon sol is pumped in stirred pot, HPMC is dropped into feeding machine for subsequent use.Open stirrer, rotating speed controls, at 35 rpms, to open feeding machine simultaneously, at the uniform velocity feed intake according to the speed of per minute 50g, until drop into completely, even with the dispersing and dissolving that ensures to feed intake, do not lump, fed intake rear Keep agitation 30 minutes, packaging after dissolving completely: be Y shaped material.
The preparation of embodiment 12Y shaped material
Prepare according to following component, each component be calculated in mass percent into:
Silicon sol 99.5%;
HPMC 0.5%.
Silicon sol is pumped in stirred pot, HPMC is dropped into feeding machine for subsequent use.Open stirrer, rotating speed controls, at 35 rpms, to open feeding machine simultaneously, at the uniform velocity feed intake according to the speed of per minute 50g, until drop into completely, even with the dispersing and dissolving that ensures to feed intake, do not lump, fed intake rear Keep agitation 30 minutes, packaging after dissolving completely: be Y shaped material.
The preparation of embodiment 13Y shaped material
Prepare according to following component, each component be calculated in mass percent into:
Silicon sol 99%;
Ethyl cellulose 1%.
Silicon sol is pumped in stirred pot, HPMC is dropped into feeding machine for subsequent use.Open stirrer, rotating speed controls, at 35 rpms, to open feeding machine simultaneously, at the uniform velocity feed intake according to the speed of per minute 50g, until drop into completely, even with the dispersing and dissolving that ensures to feed intake, do not lump, fed intake rear Keep agitation 30 minutes, packaging after dissolving completely: be Y shaped material.
The preparation of embodiment 14 Compound outer wall heat insulation material
Get G shaped material that the embodiment of the present invention 5 ~ 10 any one is supplied to and the embodiment of the present invention 11 ~ 13 any one is supplied to Y shaped material and water.Be the ratio of 10:17:1 according to the mass ratio of G shaped material, water, Y shaped material, drop into Y shaped material after G shaped material and water being mixed again and to stir use.
The preparation of embodiment 15 Compound outer wall heat insulation material
Get G shaped material that the embodiment of the present invention 5 ~ 10 any one is supplied to and the embodiment of the present invention 11 ~ 13 any one is supplied to Y shaped material and water.Be the ratio of 10:22:1 according to G shaped material, water, Y shaped material mass ratio, drop into Y shaped material after G shaped material and water being mixed again and to stir use.
The preparation of embodiment 16 Compound outer wall heat insulation material
Get G shaped material that the embodiment of the present invention 5 ~ 10 any one is supplied to and the embodiment of the present invention 11 ~ 13 any one is supplied to Y shaped material and water.Be the ratio of 10:20:1 according to the mass ratio of G shaped material, water, Y shaped material, drop into Y shaped material after G shaped material and water being mixed again and to stir use.
The quality examination of embodiment 17 Compound outer wall heat insulation material
According to the method that national standard provides, the quality embodiment of the present invention 14 to 16 being prepared to the compound outer wall material provided detects, detect foundation and result as shown in table 2:
The quality examination foundation of the compound outer wall material of table 2 and result
Below be only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (15)
1. a Compound outer wall heat insulation material, is characterized in that, its by independently G shaped material and independently Y shaped material form;
Described G shaped material comprises modification infusorial earth, pearlstone, calcium hydroxide, sepiolite cashmere and the first sustained release dosage;
Described Y shaped material comprises silicon sol and the second sustained release dosage;
The tap density of described modification infusorial earth is 450kg/m
3~ 490kg/m
3;
Its preparation method comprises the steps:
Step 1: get diatomite original ore, weathering decomposes airing, obtains block diatomite; Get described block diatomite to pulverize and drying, obtain diatomite;
Step 2: get described diatomite, add sodium carbonate, activates 40 seconds ~ 60 seconds after heating under the high temperature of 900 DEG C ~ 1100 DEG C, broken, to obtain final product;
Described diatomaceous tap density is not less than 500kg/m
3;
Described sodium carbonate and described diatomaceous mass ratio are 1 ~ 3:100;
The temperature of described heating is 600 DEG C ~ 900 DEG C, and the time is 600 seconds.
2. Compound outer wall heat insulation material according to claim 1, is characterized in that, described first sustained release dosage is HPMC or ethyl cellulose.
3. Compound outer wall heat insulation material according to claim 1, is characterized in that, described second sustained release dosage is HPMC or ethyl cellulose.
4. Compound outer wall heat insulation material according to claim 1, is characterized in that, the mass ratio of described G shaped material and described Y shaped material is 10:1.
5. a preparation method for Compound outer wall heat insulation material, is characterized in that, comprises the steps:
Step 1: get silicon sol and mix with the second sustained release dosage, obtained Y shaped material;
Step 2: get the modification infusorial earth described in claim 1, pearlstone, calcium hydroxide, sepiolite cashmere and the first sustained release dosage, mix, prepare G shaped material.
6. preparation method according to claim 5, is characterized in that, described first sustained release dosage is HPMC or ethyl cellulose.
7. preparation method according to claim 5, is characterized in that, described second sustained release dosage is HPMC or ethyl cellulose.
8. a Compound outer wall heat insulation material, is characterized in that, by independently G shaped material and independently Y shaped material form;
Wherein, described G shaped material is made up of following component, described component be calculated in mass percent into:
Wherein, described Y shaped material is made up of the second sustained release dosage and silicon sol, and the mass ratio of described second sustained release dosage and described silicon sol is 0.1 ~ 1:100.
9. Compound outer wall heat insulation material according to claim 8, is characterized in that, described first sustained release dosage is HPMC or ethyl cellulose.
10. Compound outer wall heat insulation material according to claim 8, is characterized in that, described second sustained release dosage is HPMC or ethyl cellulose.
11. Compound outer wall heat insulation material according to claim 8, is characterized in that, the mass ratio of described G shaped material and described Y shaped material is 10:1.
The preparation method of 12. 1 kinds of Compound outer wall heat insulation material, is characterized in that, comprises the steps:
Step 1:G shaped material component is calculated in mass percent, and comprising:
Get described component, mix, obtained described G shaped material;
Step 2: get the second sustained release dosage and silicon sol, mix, obtained Y shaped material; The mass ratio of described second sustained release dosage and described silicon sol is 0.1 ~ 1:100.
13. preparation methods according to claim 12, is characterized in that, described first sustained release dosage is HPMC or ethyl cellulose.
14. preparation methods according to claim 12, is characterized in that, described second sustained release dosage is HPMC or ethyl cellulose.
15. preparation methods according to claim 12, is characterized in that, the mass ratio of described G shaped material and described Y shaped material is 10:1.
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| CN103159429B (en) * | 2013-03-14 | 2014-09-03 | 吉林省天元硅藻科技有限公司 | Diatomite composite exterior wall thermal insulation material and production process thereof |
| CN105060821B (en) * | 2015-08-13 | 2017-06-23 | 临江市明盛硅藻新型材料有限公司 | A kind of diatom grain and preparation method thereof |
| CN107722809A (en) * | 2017-10-25 | 2018-02-23 | 广东巴得劳建材科技有限公司 | A kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof |
| CN110358555B (en) * | 2019-07-15 | 2021-11-16 | 中冶天工集团有限公司 | External heat insulation construction method for coke oven waste gas shutter |
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