CN102992651A - Method for coating emulsion for fireproof insulation fiberglass - Google Patents
Method for coating emulsion for fireproof insulation fiberglass Download PDFInfo
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- CN102992651A CN102992651A CN2012104528578A CN201210452857A CN102992651A CN 102992651 A CN102992651 A CN 102992651A CN 2012104528578 A CN2012104528578 A CN 2012104528578A CN 201210452857 A CN201210452857 A CN 201210452857A CN 102992651 A CN102992651 A CN 102992651A
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Abstract
The invention discloses a process for preparing a coating emulsion for fireproof insulation fiberglass. The method comprises the steps that (1) vermiculite is immersed in a treatment solution containing an expanding agent A and a dispersant B, heated and mixed for reaction; (2) the emulsion prepared by the step (1) is filtered and washed, and a filter cake of the emulsion is extracted; (3) the filter cake obtained from the step (2) is uniformly dispersed into water, is mechanically treated to be prepared into a suspension of a first solid content; and (4) unwanted water in the suspension prepared by the step (3) is removed by centrifugal separation, and finally the emulsion of a second solid content is prepared. The emulsion has the characteristics of small thermal conductivity and good insulation due to the presence of air in interlayers after coated; and compared with the high temperature resistant fiber products such as ceramic fiber products and resurrection glass fiber products, the production process of the vermiculite emulsion coating product is simple, and the price is low.
Description
Technical field
The present invention relates to a kind of emulsion preparation method that comprises vermiculite, specifically, relate to a kind of fire-proof and thermal-insulation glass preparation method who applies emulsion.
Background technology
Vermiculite is a kind of secondary metamorphic mineral of water aluminosilicate that contains magnesium of laminate structure, the thickness of its silicate stratiform structure is nearly 10 dusts only, and the water layer that interlayer is contained magnesium, calcium, sodium ion separately, and therefore heating can make the moisture evaporation and makes and become large between vermiculite layers and thermal expansion occurs.
And in recent years, the adding tackiness agent was made emulsion after domestic manufacturer used the physical mechanical method that expanded vermiculite is ground to certain fineness, and this emulsion has the unstable standing demix of suspension, used the shortcoming that need again stir; Most importantly this vermiculite granule grinds to form approximate spheroid, causes the rear film-forming properties of coating poor, and adding tackiness agent affects the shortcomings such as temperature tolerance, comes and never promote.But domestic research about the chemically expansible vermiculite has had a lot of progress, three patent: CN101049942A " a kind of hydrosol of vermiculite and its preparation method and application " of the hair will equality people of Donghua University, CN101307182A " preparation method of meso-scale flaky vermiculite and heat-resistant polymer heat insulation composite membrane ", CN102070154A " a kind of preparation method of inorganic vermiculite film ", all mention and utilize organic intercalation and Ginding process to prepare the vermiculite emulsion, but have step complexity, cost height, and repeatedly grind and cause the little and poor shortcoming of film-forming properties of radius-thickness ratio.
Summary of the invention
Technical problem to be solved by this invention provides the preparation method of a kind of fire-proof and thermal-insulation glass with the coating emulsion, and it is used for providing a kind of thermal conductivity low lagging material.
It is as follows that the present invention solves the problems of the technologies described above the technical scheme of taking:
A kind of fire-proof and thermal-insulation glass comprises the following steps: with the preparation method who applies emulsion
(1) vermiculite is immersed in the treatment solution that contains swelling agent A and dispersant B the heated and stirred reaction; (2) the emulsion filtration washing that step 1 is prepared, and the filter cake of extraction emulsion;
(3) filter cake that step 2 is obtained is dispersed in the water, is configured to the suspension liquid of the first solid content behind the mechanical treatment; (4) to the suspension liquid of step 3 preparation, remove excessive moisture in centrifugation, finally be made into the emulsion of the second solid content.
The present invention takes the principle of aforesaid method to be:
Adopt chemical stripping vermiculite method to produce that a kind of suspension is good, the vermiculite emulsion of heat insulation heatproof.By the inorganic cation between vermiculite layers and the ion exchange in the treating compound, cooperate dispersion agent and the positively charged ion Van der Waals force keying action that displaces to improve the vermiculite displacement efficiency, significantly increase the vermiculite layers spacing; Preparing the lamella vermiculite suspension liquid of peeling off fully by the aftertreatment effect.This emulsion is coated on after the paper drying and can uncovers by the film forming full wafer, and film is soft and certain intensity arranged.
There is air owing to the interlayer interlayer after this emulsion applies, thereby has little, the heat insulation good characteristics of thermal conductivity.Compare with high-temperature fibre goods such as ceramic fibre, resurrection glass fibre goods, this vermiculite emulsion coating goods manufacture craft is relatively simple, low price.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification sheets, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification sheets of writing, claims and accompanying drawing.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in detail, so that above-mentioned advantage of the present invention is clearer and more definite.Wherein,
Fig. 1 is the vermiculite film electromicroscopic photograph that a kind of fire-proof and thermal-insulation glass of the present invention is used the preparation method's who applies emulsion emulsion;
Fig. 2 is the vermiculite emulsion particle diameter distribution plan that a kind of fire-proof and thermal-insulation glass of the present invention is used the preparation method's who applies emulsion emulsion;
Fig. 3 is the vermiculite emulsion drying and forming-film photo that a kind of fire-proof and thermal-insulation glass of the present invention is used the preparation method's who applies emulsion emulsion.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the utilisation technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.Need to prove that only otherwise consist of conflict, each embodiment among the present invention and each feature among each embodiment can mutually combine, formed technical scheme is all within protection scope of the present invention.
The present invention peels off the vermiculite laminate structure for the chemically expansible method.Such as Fig. 1, shown in 2,3, the present invention utilizes between swelling agent infiltration vermiculite layers and in the vertical axial generation of interlayer slightly to expand, and then is immersed in the water rear expansion aggravation, is prepared into the suspension of stratiform vermiculite in the situation of high-shear.There is air owing to the interlayer interlayer after this emulsion applies, thereby has little, the heat insulation good characteristics of thermal conductivity.
Compare with high-temperature fibre goods such as ceramic fibre, resurrection glass fibre goods, this vermiculite emulsion coating goods manufacture craft is relatively simple, and therefore low price enjoys people's concern, and Application Areas obtains expanding day.
Wherein, know-why of the present invention is: adopt chemical stripping vermiculite method to produce that a kind of suspension is good, the vermiculite emulsion of heat insulation heatproof.By the inorganic cation between vermiculite layers and the ion exchange in the treating compound, cooperate dispersion agent and the positively charged ion Van der Waals force keying action that displaces to improve the vermiculite displacement efficiency, significantly increase the vermiculite layers spacing; Preparing the lamella vermiculite suspension liquid of peeling off fully by the aftertreatment effect.This emulsion is coated on after the paper drying and can uncovers by the film forming full wafer, and film is soft and certain intensity arranged.
Its invention step is:
1, the 6# vermiculite is immersed in carries out intercalation in the treatment solution that contains swelling agent A and dispersant B and expand the heated and stirred reaction;
2, the emulsion filtration washing of step 1 preparation;
3, the filter cake that obtains of step 2 is in being dispersed in water, the certain solid content of configuration behind the mechanical treatment;
4, the suspension liquid of step 3 preparation sieves, screen out the impurity that do not expand after, remove excessive moisture in centrifugation, finally be made into the emulsion of certain solid content;
5, the swelling agent A that mentions in the step 1 comprises one or more of the organic acid salt of carbon atom 3-15 and the organic amine salt of the sub-6-20 of carbonic acid etc., and consumption is the 5-200% of vermiculite amount;
6, the dispersant B of mentioning in the step 1 can be inorganic dispersant, such as: tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 etc., it also can be organic dispersing agent, such as: one or more of triethyl hexyl phosphoric acid, sodium lauryl sulphate, methyl amyl alcohol, derivatived cellulose, polyacrylamide, guar gum, fatty acid polyglycol ester etc., consumption is at the 5-200% that is the vermiculite consumption;
7, the temperature of reaction of mentioning in the step 1 is room temperature to 100 ℃, is preferably in 40-95 ℃, and stirring velocity is 50-200rpm, is preferably in 50-100rpm; Reaction times is preferably in 2-36h at 2-48h;
The instrument of the mechanical treatment of 8, mentioning in the step 3 can be colloidal mill, ball mill, sand milling dispersion machine, mulser etc.;
9, the solid content of mentioning in the step 3 is preferably 4%-30% between 1-35%; The time of processing is preferably in 2-8h at 1-10h;
10, step 4 is mentioned and is screened out not that dilatant mainly is the impurity such as silt and mica; The solid content of emulsion is preferably in 5-35% between 5%-45%.
11, the radius-thickness ratio of the emulsion mentioned of step 4 is between 1:200-1:30000, and the pH value is at 6-10, and viscosity is at 200-10000.
The present invention is described in further detail below in conjunction with specific embodiment, but the invention is not restricted to following examples.
Embodiment 1
20 gram 6# vermiculites are immersed in carry out intercalation in the treatment solution of Sodium hexametaphosphate 99 that 400ml contains the stearic acid sodium of 5mol/L and 1mol/L and expand, temperature is 60 ℃, and stirring velocity is 200rpm, reaction 24h; The emulsion filtration washing is 10 times after finishing; After dispersion, solid content adjusts to 20% with filter cake, uses the sand milling dispersion machine to process 4h under 5000rpm, sieves, and removes non-bloating impurity, and it is 30% vermiculite emulsion that excessive moisture to solid content is removed in centrifugation.
Embodiment 2
Pre-treatment is with embodiment 1, after solid content is adjusting 20%, uses ball mill to process 5h under 500rpm, sieves, and removes non-bloating impurity, and it is 30% vermiculite emulsion that excessive moisture to solid content is removed in centrifugation.
Embodiment 3
200 gram 6# vermiculites are immersed in carry out intercalation in the treatment solution of sodium polyacrylate that 1L contains the Trimethyllaurylammonium bromide of 5mol/L and 0.2mol/L and expand, temperature is 70 ℃, and stirring velocity is 200rpm, reaction 24h; The emulsion filtration washing is 10 times after finishing; Filter cake solid content after dispersion is being adjusted to 20%, using mulser high shear treatment 4h under 5000rpm, sieving, removing non-bloating impurity, it is 30% vermiculite emulsion that excessive moisture to solid content is removed in centrifugation.
The present invention adopts chemical stripping vermiculite method to produce that a kind of suspension is good, the vermiculite emulsion of heat insulation heatproof.By the inorganic cation between vermiculite layers and the ion exchange in the treating compound, cooperate dispersion agent and the positively charged ion Van der Waals force keying action that displaces to improve the vermiculite displacement efficiency, significantly increase the vermiculite layers spacing; Preparing the lamella vermiculite suspension liquid of peeling off fully by the aftertreatment effect.This emulsion is coated on after the paper drying and can uncovers by the film forming full wafer, and film is soft and certain intensity arranged.
There is air owing to the interlayer interlayer after this emulsion applies, thereby has little, the heat insulation good characteristics of thermal conductivity.Compare with high-temperature fibre goods such as ceramic fibre, resurrection glass fibre goods, this vermiculite emulsion coating goods manufacture craft is relatively simple, low price.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Need to prove, for aforesaid method embodiment, for simple description, so it all is expressed as a series of combination of actions, but those skilled in the art should know, the application is not subjected to the restriction of described sequence of operation, because according to the application, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the specification sheets all belongs to preferred embodiment, and related action and module might not be that the application is necessary.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a fire-proof and thermal-insulation glass comprises the following steps: that with the preparation method who applies emulsion (1) is immersed in vermiculite in the treatment solution that contains swelling agent A and dispersant B, the heated and stirred reaction; (2) the emulsion filtration washing that step 1 is prepared, and the filter cake of extraction emulsion; (3) filter cake that step 2 is obtained is dispersed in the water, is configured to the suspension liquid of the first solid content behind the mechanical treatment; (4) to the suspension liquid of step 3 preparation, remove excessive moisture in centrifugation, finally be made into the emulsion of the second solid content.
2. fire-proof and thermal-insulation glass usefulness according to claim 1 applies the preparation method of emulsion, it is characterized in that, in the step 1, described swelling agent A comprises one or more of the organic acid salt of carbon atom 3-15 and the organic amine salt of the sub-6-20 of carbonic acid etc., and consumption is the 5-200% of vermiculite consumption.
3. fire-proof and thermal-insulation glass according to claim 1 is characterized in that with the preparation method who applies emulsion described dispersant B is inorganic dispersant or organic dispersing agent, and consumption is in the 5-200%(quality that is the vermiculite consumption).
4. fire-proof and thermal-insulation glass according to claim 3 is characterized in that with the preparation method who applies emulsion, when described dispersant B is inorganic dispersant, chooses tripoly phosphate sodium STPP or Sodium hexametaphosphate 99; Or, when described dispersant B is organic dispersing agent, choose one or more of triethyl hexyl phosphoric acid, sodium lauryl sulphate, methyl amyl alcohol, derivatived cellulose, polyacrylamide, guar gum, fatty acid polyglycol ester.
5. arbitrary described fire-proof and thermal-insulation glass is characterized in that with the preparation method who applies emulsion according to claim 1 ~ 3, and the temperature of heating is room temperature to 100 ℃ in the step 1, and stirring velocity is 50-200rpm, and the reaction times is at 2-48h.
6. fire-proof and thermal-insulation glass according to claim 5 is characterized in that with the preparation method who applies emulsion in the step 1, the temperature of described heating is 40-95 ℃, and stirring velocity is 50-100rpm, and the reaction times is at 2-36h.
7. fire-proof and thermal-insulation glass according to claim 5 is characterized in that with the preparation method who applies emulsion in the step 3, the described instrument that carries out mechanical treatment is colloidal mill or ball mill or sand milling dispersion machine or mulser.
8. fire-proof and thermal-insulation glass according to claim 1 is characterized in that with the preparation method who applies emulsion, in the step 3, described the first solid content between 1-35%, and the time of mechanical treatment be chosen at 1-10h.
9. fire-proof and thermal-insulation glass according to claim 8 is characterized in that with the preparation method who applies emulsion, in the step 3, described the first solid content between 4%-30%, and the time of mechanical treatment be chosen at 2-8h.
10. fire-proof and thermal-insulation glass according to claim 1 is characterized in that, in the step 4 with the preparation method who applies emulsion, before excessive moisture is removed in centrifugation, also comprise: sieve and screen out the impurity that do not expand, wherein, described not dilatant is silt and/or mica impurity.
11. fire-proof and thermal-insulation glass according to claim 1 is characterized in that with the preparation method who applies emulsion in the step 4, the second solid content of described emulsion is between 5%-45%.
12. fire-proof and thermal-insulation glass according to claim 11 is characterized in that with the preparation method who applies emulsion in the step 4, the second solid content of described emulsion is at 5-35%.
13. fire-proof and thermal-insulation glass according to claim 1 is characterized in that with the preparation method who applies emulsion in the step 4, the radius-thickness ratio of described emulsion is between 1:200-1:30000, the pH value is at 6-10, and viscosity is at 200-10000.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104528578A CN102992651A (en) | 2012-11-13 | 2012-11-13 | Method for coating emulsion for fireproof insulation fiberglass |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104528578A CN102992651A (en) | 2012-11-13 | 2012-11-13 | Method for coating emulsion for fireproof insulation fiberglass |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1025644A (en) * | 1961-09-25 | 1966-04-14 | Minnesota Mining & Mfg | Insulating coatings |
| CN101049942A (en) * | 2007-03-30 | 2007-10-10 | 东华大学 | Hydrosol of vermiculite, preparation method, and application |
| CN101307182A (en) * | 2008-06-26 | 2008-11-19 | 东华大学 | Method for preparing meso-scale flaky vermiculite and heat-resistant polymer heat insulation composite membrane |
| CN102070154A (en) * | 2010-12-07 | 2011-05-25 | 东华大学 | Preparation method of inorganic vermiculite film |
-
2012
- 2012-11-13 CN CN2012104528578A patent/CN102992651A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1025644A (en) * | 1961-09-25 | 1966-04-14 | Minnesota Mining & Mfg | Insulating coatings |
| CN101049942A (en) * | 2007-03-30 | 2007-10-10 | 东华大学 | Hydrosol of vermiculite, preparation method, and application |
| CN101307182A (en) * | 2008-06-26 | 2008-11-19 | 东华大学 | Method for preparing meso-scale flaky vermiculite and heat-resistant polymer heat insulation composite membrane |
| CN102070154A (en) * | 2010-12-07 | 2011-05-25 | 东华大学 | Preparation method of inorganic vermiculite film |
Non-Patent Citations (1)
| Title |
|---|
| 芈凌佳: "有机插层蛭石层间结构分析及蛭石水溶胶的制备", 《中国优秀硕士学位论文全文数据库-工程科技Ⅰ辑》, no. 02, 15 February 2012 (2012-02-15), pages 024 - 65 * |
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Application publication date: 20130327 |