CN102910849A - 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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- CN102910849A CN102910849A CN2012104077747A CN201210407774A CN102910849A CN 102910849 A CN102910849 A CN 102910849A CN 2012104077747 A CN2012104077747 A CN 2012104077747A CN 201210407774 A CN201210407774 A CN 201210407774A CN 102910849 A CN102910849 A CN 102910849A
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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 the material technology field, relate in particular to a kind of modification infusorial earth and preparation method thereof with and application in preparation composite exterior wall lagging material.
Background technology
Heat preserving and insulating material and goods are to affect important factor of building energy conservation.Use thermal insulation material under construction, can significantly reduce the consumption of the energy, thus environmental contamination reduction and Greenhouse effect.
Applying of China's building energy conservation wall thermal insulation technology and product is started in the mid-80 in last century, the material that adopts at that time mainly contained: perlite, composition silicate, sepiolite, with the compound heat preservation mortar for outer wall product of organosilicon etc., development through nearly 30 years, China's building thermal insulation material is variation progressively, and lagging material commonly used mainly contains at present: 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, uses also extensive on present market.There are statistics 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 application quantity maximum systems on market, basically occupy wall and are incubated the share of market more than 75% outward.In addition, machinery fixedly polystyrene block steel wire net rack plate exterior wall external heat preservation system, 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 occupies 20% the market share, and the other system total amount accounts for 5%.
But the heat-insulating property of material becomes negative correlation with flame retardant properties, and heat-insulating property is better, and flame retardant properties is just lower.In recent years, the fire that causes because of external-wall heat-insulation material low fire-retardant happens occasionally, and a lot of fire that catch fire and cause because of the polyphenyl plate heat preserving layer have occured in the whole nation.Therefore, improve the lagging material flame retardant properties and day by day become study hotspot.
Diatomite is a kind of siliceous rock, is the accumulational stage that is referred to as after the one-celled plants death of diatom through about 1 to 20,000 year, 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 the diatomite stable chemical nature, do not contain poisonous chemical substance, and self have the adsorbable impurity of microvoid structure and purify air, good heat insulating, but sound insulation, heat insulation.Therefore, the use that contains diatomite composition building materials is the trend that progressively rises in recent years.
But, adopt common diatomite to exist tap density large, the shortcoming of weak strength is although but and raising tap density strongthener intensity can reduce the heat retaining property of material greatly.In order to solve these shortcomings, in the existing material of construction that contains the diatomite composition, mostly added a large amount of organic substances, guaranteeing under the constant prerequisite of tap density, to improve intensity.Yet the interpolation of organic substance when having reduced diatomite content, not only greatly reduces the flame retardant properties of building materials, and can stop up diatomaceous self microvoid structure and reduce diatomite to the adsorptive power of objectionable impurities, and discharges objectionable impurities.
Summary of the invention
In view of this, the technical problem to be solved in the present invention be to provide a kind of modification infusorial earth and preparation method thereof with and application in preparation composite exterior wall lagging material, it is little that modification infusorial earth provided by the invention has tap density, intensity is high, the characteristics that insulation effect is good, the external-wall heat-insulation material of preparation does not add organic substance take it as raw material, and heat insulating ability is good, and 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, activates under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Wherein, diatomaceous tap density is not less than 500kg/m
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
It is 450kg/m that the present invention also provides a kind of tap density
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, activates under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
Preferably, diatomite can be commercially available, also can mode provided by the invention prepare, and 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 not construed as limiting at this.
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 that block diatomite is pulverized and dry, and get final product.
High-temperature calcination under aerobic conditions is the effective means of removing organic impurity in diatomite, diatomaceous particle kept 600 seconds under 600 ℃ ~ 900 ℃ conditions, then kept 40 ~ 60 seconds under 900 ℃ ~ 1100 ℃ conditions, under the condition of high temperature aerobic, organism in diatomite can be burnt to be lost, and diatomaceous whiteness is improved; And under hot conditions, the materials such as the moisture in diatomite gasify rapidly, thereby make the microvoid structure of diatom be cleaned and make the corner angle of microvoid structure obtain passivation, thereby have reduced diatomaceous tap density; In addition, diatomaceous main component is silicon-dioxide, and the softening temperature of crystalline silica is 600 ℃, and the softening temperature of noncrystal silicon-dioxide is 900 ℃ ~ 1100 ℃, and the fusing point of sodium carbonate is that 850 ℃, softening temperature are at 400 ℃ ~ 600 ℃; When being heated to 900 ℃ ~ 1100 ℃, melting can occur in sodium carbonate, and produces the water glass of micro glass in diatom surface, has thickened thin position, a diatom surface, and the intensity of modification infusorial earth is improved.
On this basis, the invention provides tap density is 450kg/m
3~ 490kg/m
3The application of modification infusorial earth in preparation composite exterior wall lagging material.
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, activates under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
Preferably, diatomite can be commercially available, also can mode provided by the invention prepare, and 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 not construed as limiting at this.
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 that block diatomite is pulverized and dry, and get final product.
The present invention also provides a kind of composite exterior wall lagging material, by G shaped material independently and independently the Y shaped material form;
The G shaped material comprises that tap density is 450kg/m
3~ 490kg/m
3Modification infusorial earth, pearlstone, calcium hydroxide, sepiolite cashmere and the first sustained release dosage;
The 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, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
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.
The present invention also provides a kind of preparation method of composite exterior wall lagging material, is divided into following steps:
Step 1: get silicon sol and the second sustained release dosage mixes, make the 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 the 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, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
In composite exterior wall lagging material provided by the invention, only contain trace and do not have a volatile organic matter, and by the intensity to diatomaceous modification reinforcement material; Reduce the use of additive, increase the content of modification infusorial earth in material, thereby avoided the interpolation of large amount of organic in the traditional material to cause the obstruction of diatom microvoid structure, reduced flame retardant resistance, and organic materials has volatility mostly, also can discharge objectionable impurities.
On this basis, the present invention also provides a kind of composite exterior wall lagging material, by G shaped material independently and independently the Y shaped material form;
The G shaped material is made by 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%;
The first sustained release dosage 0.3% ~ 1%;
The Y shaped material is comprised 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, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
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.
The present invention also provides a kind of preparation method of composite exterior wall lagging material, and 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%;
The 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, make the G shaped material;
Step 2: get the second sustained release dosage and silicon sol, mix, make the 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, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
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 substances under high temperature action, diatomaceous microvoid structure is cleaned, and makes the diatomaceous micropore of preparation have higher integrity, simultaneously, because the impurity in micropore is removed, the diatomite after modification has better intensity and whiteness.Diatomite can make the water glass of a sodium carbonate diatom surface generation micro glass under the effect of sodium carbonate and high temperature, thickened thin position, a diatom surface, and the intensity of modification infusorial earth is improved.Modification infusorial earth provided by the invention has that whiteness is high, tap density is little, in the high characteristics of intensity, is having good absorption property and heat-insulating property.And the present invention also provides the composite exterior wall lagging material that adopts the modification infusorial earth preparation, and insulation and the flame retardant effect of this material are good, and intensity is large, good integrity.And this lagging material only adds and does not have on a small quantity volatile organic substance, has guaranteed this material can not volatilize obnoxious flavour, safety and environmental protection more; In addition, lagging material provided by the invention is easy to use, sound insulation, waterproof and heat insulation, insulation, the characteristics 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.Composite exterior wall lagging material provided by the invention is through identifying, thermal conductivity is 0.0524W/(m.k), less than the 0.070W/(m.k of national Specification), and its combustionproperty rank can reach the A level, and purifying formaldehyde efficient is 83.4%.
Description of drawings
Figure 1 shows that the Electronic Speculum figure of diatom individuality in the front diatomite original ore of processing, enlargement ratio is 1000000 times;
Before Figure 2 shows that modification, tap density is not less than 500kg/m
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 with and application in preparation composite exterior wall lagging material, those skilled in the art can use for reference this paper content, suitably improve processing parameter and realize.Special needs to be pointed out is, all similarly replace and change apparent to those skilled in the art, and they all are deemed to be included in the present invention.Method of the present invention and application are described by preferred embodiment, the related personnel obviously can change the methods and applications of this paper within not breaking away from content of the present invention, spirit and scope or suitably change and combination, realizes and use 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: at first, obtain diatomite; Then, get described diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and described diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
It is 450kg/m that the present invention also provides a kind of tap density
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, activates under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
Diatomite can be commercially available, also can mode provided by the invention prepare, and 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 not construed as limiting at this.
Tap density is not less than 500kg/m
3Diatomaceous preparation method comprise the following steps: at first, get diatomite original ore, weathering decomposes airing, obtains block diatomite; Then, get block diatomite and pulverize also drying, and get final product.
The aerobic high-temperature calcination is to remove organic effective means, therefore, at first diatomaceous particle kept 600 seconds under 600 ℃ ~ 900 ℃ conditions, then kept 40 ~ 60 seconds under 900 ℃ ~ 1100 ℃ conditions, organism in diatomite can be burnt to be lost, and whiteness is improved and tap density decline; In addition, the main component of diatom is silicon-dioxide, and the softening temperature of crystalline silica is 600 ℃, and the softening temperature of noncrystal silicon-dioxide is 900 ℃ ~ 1100 ℃, and the fusing point of sodium carbonate is that 850 ℃, softening temperature are at 400 ℃ ~ 600 ℃, therefore, when the temperature condition of selecting 900 ℃ ~ 1100 ℃, at this moment, melting can occur in sodium carbonate, and produce the water glass of micro glass in diatom surface, and thicken thin position, a diatom surface, the intensity of modification infusorial earth is improved.
It is 450kg/m that the present invention also provides a kind of tap density
3~ 490kg/m
3The application of modification infusorial earth in the 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: at first, obtain diatomite; Then, get described diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and described diatomaceous mass ratio are 1 ~ 3:100.The temperature of heating is 600 ℃ ~ 900 ℃.
Diatomite can be commercially available, also can mode provided by the invention prepare, and 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 not construed as limiting at this.
Tap density is not less than 500kg/m
3Diatomaceous preparation method comprise the following steps:
At first, get diatomite original ore, weathering decomposes airing, obtains block diatomite; Then, get block diatomite and pulverize also drying, and get final product.
The present invention also provides a kind of composite exterior wall lagging material, by G shaped material independently and independently the Y shaped material form;
The G shaped material comprises that tap density is 450kg/m
3~ 490kg/m
3Modification infusorial earth, pearlstone, calcium hydroxide, sepiolite cashmere and the first sustained release dosage;
The 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: at first, obtain diatomite; Then, get diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃; The first sustained release dosage is HPMC or ethyl cellulose; The second sustained release dosage is HPMC or ethyl cellulose.
Diatomite can be commercially available, also can mode provided by the invention prepare, and 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 not construed as limiting at this.
Tap density is not less than 500kg/m
3Diatomaceous preparation method comprise the following steps: at first, get diatomite original ore, weathering decomposes airing, obtains block diatomite; Then, get block diatomite and pulverize also drying, and get final product.
For obtaining better intensity, the mass ratio of G shaped material and Y shaped material is 10:1.
The present invention also provides a kind of preparation method of composite exterior wall lagging material, is divided into following steps: at first, get silicon sol and the second sustained release dosage mixes, make the 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 the 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: at first, obtain diatomite; Then, get diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
Diatomite can be commercially available, also can mode provided by the invention prepare, and 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 not construed as limiting at this.
Tap density is not less than 500kg/m
3Diatomaceous preparation method comprise the following steps: at first, get diatomite original ore, weathering decomposes airing, obtains block diatomite; Then, get block diatomite and pulverize also drying, and get final product.
In material provided by the invention, only contain trace and do not have a volatile organic matter, and by the intensity to diatomaceous modification reinforcement material; Reduce the use of additive, increase the content of modification infusorial earth in material, thereby avoided the interpolation of large amount of organic in the traditional material to cause the obstruction of diatom microvoid structure, reduced flame retardant resistance, and organic materials has volatility mostly, also can discharge objectionable impurities.
On this basis, the present invention also provides a kind of composite exterior wall lagging material, by G shaped material independently and independently the Y shaped material form;
The G shaped material is made by 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%;
The first sustained release dosage 0.3% ~ 1%;
The Y shaped material is comprised 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: at first, obtain diatomite; Then, get diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
Diatomite can be commercially available, also can mode provided by the invention prepare, and 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 not construed as limiting at this.
Tap density is not less than 500kg/m
3Diatomaceous preparation method comprise the following steps: at first, get diatomite original ore, weathering decomposes airing, obtains block diatomite; Then, get block diatomite and pulverize also drying, and get final product.
For reaching better slow release effect, the first sustained release dosage is HPMC or ethyl cellulose.The 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.
The present invention also provides a kind of preparation method of composite exterior wall lagging material, and the method is specially:
At 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%;
The first sustained release dosage 0.3% ~ 1%;
Wherein, the tap density of modification infusorial earth is 450kg/m
3~ 490kg/m
3
With each component, mix, make the G shaped material;
Then, get the second sustained release dosage and silicon sol, mix, make the 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: at first, obtain diatomite; Then, get diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get final product;
Adopt diatomaceous tap density to be not less than 500kg/m in the method
3Sodium carbonate and diatomaceous mass ratio are 1 ~ 3:100; The temperature of heating is 600 ℃ ~ 900 ℃.
Diatomite can be commercially available, also can mode provided by the invention prepare, and 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 not construed as limiting at this.
Tap density is not less than 500kg/m
3Diatomaceous preparation method comprise the following steps: at first, get diatomite original ore, weathering decomposes airing, obtains block diatomite; Then, get block diatomite and pulverize also drying, and get final product.
In order to reach better slow release effect, the first sustained release dosage is HPMC or ethyl cellulose.The 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 has the advantages that tap density is little, intensity is large when having adiabatic and flame retardant effect.And the present invention also provides the composite exterior wall lagging material that adopts the modification infusorial earth preparation, and this lagging material only contains and do not have on a small quantity volatile organism, guaranteed insulation and the flame retardant effect of this material, and intensity is large, good integrity.And lagging material provided by the invention is easy to use, simultaneously can not discharge objectionable impurities, has to purify air sound insulation, waterproof and heat insulation, insulation, the characteristics that permeability is good.
Modification infusorial earth provided by the invention and preparation method thereof with and application in preparation composite exterior wall lagging material in raw materials used and reagent all can be buied by market.
Below in conjunction with embodiment, further set forth the present invention:
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 moisture content to pulverize in the part below 15%, be crushed to 30 orders ~ 120 orders; Simultaneously further it is carried out drying, make moisture content be reduced to 4% ~ 6%; Then select desired particle size 80 ~ 120 order salable product by pneumatic separation device.Namely get 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, sneak into mass percent and be 1% sodium carbonate, 600 ℃ of high-temperature calcinations 600 seconds, 900 ℃ activate 60 seconds, make the surface of diatomite micropore produce the micro glass water glass, thereby thicken thin position, a diatom surface, increased the intensity of diatom individuality after the preparation.Then, broken diatomite by 2000 windmills that turn, selection by winnowing goes out 325 orders ~ 3000 purposes and partly is modification infusorial earth.
The tap density that adopts in the present embodiment is 500kg/m
3Diatomite can be for commercially available or made by method provided by the invention.
Measuring method with national standard detects, and after measured, the tap density of modification infusorial earth is: 450kg/m
3
Embodiment 2 tap densities are 470kg/m
3The preparation of modification infusorial earth
Get diatomite original ore, decompose airing through the weathering of a year, select moisture content to pulverize in the part below 15%, be crushed to 30 orders ~ 120 orders; Simultaneously further it is carried out drying, make moisture content be reduced to 4% ~ 6%; Then select desired particle size 80 ~ 120 order salable product by pneumatic separation device.Namely get 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, sneak into mass percent and be 2% sodium carbonate, 750 ℃ of high-temperature calcinations 600 seconds, 1000 ℃ activate 50 seconds, make the surface of diatomite micropore produce the micro glass water glass, thereby thicken thin position, a diatom surface, increased the intensity of diatom individuality after the preparation.Then, broken diatomite by 2000 windmills that turn, selection by winnowing goes out 325 orders ~ 3000 purposes and partly is modification infusorial earth.
The tap density that adopts in the present embodiment is 600kg/m
3Diatomite can be for commercially available or made by the method for putting provided by the invention.
Measuring method with national standard detects, and after measured, the tap density of modification infusorial earth is: 470kg/m
3
Embodiment 3 tap densities are 490kg/m
3The preparation of modification infusorial earth
Get diatomite original ore, decompose airing through the weathering of a year, select moisture content to pulverize in the part below 15%, be crushed to 30 orders ~ 120 orders; Simultaneously further it is carried out drying, make moisture content be reduced to 4% ~ 6%; Then select desired particle size 80 ~ 120 order salable product by pneumatic separation device.Namely get 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, sneak into mass percent and be 3% sodium carbonate, 900 ℃ of high-temperature calcinations 600 seconds, 1100 ℃ activate 40 seconds, make the surface of diatomite micropore produce the micro glass water glass, thereby thicken thin position, a diatom surface, increased the intensity of diatom individuality after the preparation.Then, broken diatomite by 2000 windmills that turn, selection by winnowing goes out 325 orders ~ 3000 purposes and partly is modification infusorial earth.
The tap density that adopts in the present embodiment is 750kg/m
3Diatomite be commercially available or made by the method for putting provided by the invention.
Measuring method with national standard detects, and after measured, the tap density of modification infusorial earth is: 490kg/m
3
The quality examination of embodiment 4 modification infusorial earths provided by the invention
Process the Electronic Speculum figure of diatom individuality in front diatomite original ore as shown in Figure 1, before modification, tap density is not less than 500kg/m
3Diatomite in the 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 the diatom of modification infusorial earth as shown in Figure 1.Can significantly be found out by figure, the tap density that adopts method provided by the invention to make is 450kg/m
3~ 490kg/m
3In modification infusorial earth, the microvoid structure of diatom individuality is more abundant, complete, penetrating.Thereby reduced the tap density of modification infusorial earth, the increase of microvoid structure simultaneously makes this modification infusorial earth have better adsorption effect.
The tap density that adopts national standard that the embodiment of the present invention 1 ~ 3 is provided is 450kg/m
3~ 490 kg/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, the tap density of the method preparation that provides take the embodiment of the present invention is as 450kg/m
3~ 490kg/m
3The quality of modification infusorial earth meets the requirement of national standard.
The preparation of embodiment 5G shaped material
According to the preparation of 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, note throwing and spread evenly, in order to stir.Stir after 15 ~ 20 minutes packing: be the G shaped material.
The preparation of embodiment 6G shaped material
According to the preparation of 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, note throwing and spread evenly, in order to stir.Stir after 15 ~ 20 minutes packing: be the G shaped material.
The preparation of embodiment 7G shaped material
According to the preparation of 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, note throwing and spread evenly, in order to stir.Stir after 15 ~ 20 minutes packing: be the G shaped material.
The preparation of embodiment 8G shaped material
According to the preparation of 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, note throwing and spread evenly, in order to stir.Stir after 15 ~ 20 minutes packing: be the G shaped material.
The preparation of embodiment 9G shaped material
According to the preparation of 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, note throwing and spread evenly, in order to stir.Stir after 15 ~ 20 minutes packing: be the G shaped material.
The preparation of embodiment 10G shaped material
According to the preparation of 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, note throwing and spread evenly, in order to stir.Stir after 15 ~ 20 minutes packing: be the G shaped material.
The preparation of embodiment 11Y shaped material
According to the preparation of 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 standby.Open stirrer, rotating speed is controlled at 35 rpms, opens simultaneously feeding machine, speed according to per minute 50g at the uniform velocity feeds intake, and is until drop into fully, even with the dispersing and dissolving that guarantees to feed intake, do not lump, feed intake complete after lasting stirring 30 minutes, packing after the dissolving fully: be the Y shaped material.
The preparation of embodiment 12Y shaped material
According to the preparation of 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 standby.Open stirrer, rotating speed is controlled at 35 rpms, opens simultaneously feeding machine, speed according to per minute 50g at the uniform velocity feeds intake, and is until drop into fully, even with the dispersing and dissolving that guarantees to feed intake, do not lump, feed intake complete after lasting stirring 30 minutes, packing after the dissolving fully: be the Y shaped material.
The preparation of embodiment 13Y shaped material
According to the preparation of 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 standby.Open stirrer, rotating speed is controlled at 35 rpms, opens simultaneously feeding machine, speed according to per minute 50g at the uniform velocity feeds intake, and is until drop into fully, even with the dispersing and dissolving that guarantees to feed intake, do not lump, feed intake complete after lasting stirring 30 minutes, packing after the dissolving fully: be the Y shaped material.
The preparation of embodiment 14 composite exterior wall lagging materials
Get G shaped material and the embodiment of the present invention 11 ~ 13 any one that the embodiment of the present invention 5 ~ 10 any one offer and offer Y shaped material and water.Mass ratio according to G shaped material, water, Y shaped material is the ratio of 10:17:1, drops into the use that stirs of Y shaped material after G shaped material and water are mixed again.
The preparation of embodiment 15 composite exterior wall lagging materials
Get G shaped material and the embodiment of the present invention 11 ~ 13 any one that the embodiment of the present invention 5 ~ 10 any one offer and offer 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 again the use that stirs of Y shaped material after G shaped material and water are mixed.
The preparation of embodiment 16 composite exterior wall lagging materials
Get G shaped material and the embodiment of the present invention 11 ~ 13 any one that the embodiment of the present invention 5 ~ 10 any one offer and offer Y shaped material and water.Mass ratio according to G shaped material, water, Y shaped material is the ratio of 10:20:1, drops into the use that stirs of Y shaped material after G shaped material and water are mixed again.
Embodiment 17 composite exterior wall lagging material quality examinations
According to the method that national standard provides, the quality that the compound outer wall material that provides is provided the embodiment of the present invention 14 to 16 detects, and detects foundation and result as shown in table 2:
Quality examination foundation and the result of the compound outer wall material of table 2
It is only below the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle 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 (28)
1. a modification infusorial earth, is characterized in that, the tap density of described modification infusorial earth is 450kg/m
3～490kg/m
3
2. a tap density is 450kg/m
3~ 490kg/m
3The preparation method of modification infusorial earth, it is characterized in that, comprise the steps:
Step 1: obtain diatomite;
Step 2: get described diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get 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.
3. preparation method according to claim 2, is characterized in that, the temperature of described heating is 600 ℃ ~ 900 ℃.
4. the tap density of according to claim 2 or 3 described preparation methods' acquisitions is 450kg/m
3~ 490kg/m
3Modification infusorial earth.
5. according to claim 1 or 4 described tap densities are 450kg/m
3~ 490kg/m
3The application of modification infusorial earth in preparation composite exterior wall lagging material.
6. a composite exterior wall lagging material, is characterized in that, its by G shaped material independently and independently the Y shaped material form;
Described G shaped material comprises that tap density is 450kg/m
3~ 490kg/m
3Modification 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.
7. composite exterior wall lagging material according to claim 6, is characterized in that, described 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 described diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get 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.
8. composite exterior wall lagging material according to claim 7, is characterized in that, described tap density is 450kg/m
3~ 490kg/m
3The preparation method of modification infusorial earth described in the temperature that heats be 600 ℃ ~ 900 ℃.
9. composite exterior wall lagging material according to claim 6, is characterized in that, described the first sustained release dosage is HPMC or ethyl cellulose.
10. composite exterior wall lagging material according to claim 6, is characterized in that, described the second sustained release dosage is HPMC or ethyl cellulose.
11. composite exterior wall lagging material according to claim 6 is characterized in that, the mass ratio of described G shaped material and described Y shaped material is 10:1.
12. the preparation method of a composite exterior wall lagging material is characterized in that, comprises the steps:
Step 1: get silicon sol and the second sustained release dosage mixes, make the 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 the G shaped material.
13. preparation method according to claim 12 is characterized in that, described 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 described diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get 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.
14. preparation method according to claim 13 is characterized in that, described tap density is 450kg/m
3~ 490kg/m
3The preparation method of modification infusorial earth described in the temperature that heats be 600 ℃ ~ 900 ℃.
15. preparation method according to claim 12 is characterized in that, described the first sustained release dosage is HPMC or ethyl cellulose.
16. preparation method according to claim 12 is characterized in that, described the second sustained release dosage is HPMC or ethyl cellulose.
17. a composite exterior wall lagging material is characterized in that, by G shaped material independently and independently the Y shaped material form;
Wherein, described G shaped material is made by following component, described component be calculated in mass percent into:
Pearlstone 30% ~ 40%;
Modification infusorial earth 30% ~ 40%;
Calcium hydroxide 18% ~ 30%;
Sepiolite cashmere 1% ~ 5%;
The first sustained release dosage 0.3% ~ 1%;
Wherein, described Y shaped material is comprised of the second sustained release dosage and silicon sol, and the mass ratio of described the second sustained release dosage and described silicon sol is 0.1 ~ 1:100.
18. composite exterior wall lagging material according to claim 17 is characterized in that, described 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 described diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get 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.
19. composite exterior wall lagging material according to claim 18 is characterized in that, described tap density is 450kg/m
3~ 490kg/m
3The preparation method of modification infusorial earth described in the temperature that heats be 600 ℃ ~ 900 ℃.
20. composite exterior wall lagging material according to claim 17 is characterized in that, described the first sustained release dosage is HPMC or ethyl cellulose.
21. composite exterior wall lagging material according to claim 17 is characterized in that, described the second sustained release dosage is HPMC or ethyl cellulose.
22. composite exterior wall lagging material according to claim 17 is characterized in that, the mass ratio of described G shaped material and described Y shaped material is 10:1.
23. the preparation method of a composite exterior wall lagging material is characterized in that, 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%;
The first sustained release dosage 0.3% ~ 1%;
The tap density of described modification infusorial earth is 450kg/m
3~ 490kg/m
3
Get described component, mix, make described G shaped material;
Step 2: get the second sustained release dosage and silicon sol, mix, make the Y shaped material; The mass ratio of described the second sustained release dosage and described silicon sol is 0.1 ~ 1: 100.
24. preparation method according to claim 23 is characterized in that, described 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 described diatomite, add sodium carbonate, activate under the high temperature of 900 ℃ ~ 1100 ℃ after heating, fragmentation, and get 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.
25. preparation method according to claim 24 is characterized in that, described tap density is 450kg/m
3~ 490kg/m
3The preparation method of modification infusorial earth described in the temperature that heats be 600 ℃ ~ 900 ℃.
26. preparation method according to claim 23 is characterized in that, described the first sustained release dosage is HPMC or ethyl cellulose.
27. preparation method according to claim 23 is characterized in that, described the second sustained release dosage is HPMC or ethyl cellulose.
28. preparation method according to claim 23 is characterized in that, the mass ratio of described G shaped material and described Y shaped material is 10:1.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103159429A (en) * | 2013-03-14 | 2013-06-19 | 吉林省天元硅藻科技有限公司 | Diatomite composite exterior wall thermal insulation material and production process thereof |
| CN105060821A (en) * | 2015-08-13 | 2015-11-18 | 临江市明盛硅藻新型材料有限公司 | Diatom particles 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 |
| CN110358555A (en) * | 2019-07-15 | 2019-10-22 | 中冶天工集团有限公司 | A kind of coke oven exhaust gas shutter outer thermal insulation construction method |
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| CN101486467A (en) * | 2009-02-09 | 2009-07-22 | 彭钲杰 | Light and white diatomite material |
| CN101993681A (en) * | 2009-08-20 | 2011-03-30 | 王猛 | Water-proof heat-insulating composite material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486467A (en) * | 2009-02-09 | 2009-07-22 | 彭钲杰 | Light and white diatomite material |
| CN101993681A (en) * | 2009-08-20 | 2011-03-30 | 王猛 | Water-proof heat-insulating composite material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159429A (en) * | 2013-03-14 | 2013-06-19 | 吉林省天元硅藻科技有限公司 | Diatomite composite exterior wall thermal insulation material and production process thereof |
| 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 |
| CN105060821A (en) * | 2015-08-13 | 2015-11-18 | 临江市明盛硅藻新型材料有限公司 | Diatom particles 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 |
| CN110358555A (en) * | 2019-07-15 | 2019-10-22 | 中冶天工集团有限公司 | A kind of coke oven exhaust gas shutter outer thermal insulation construction method |
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