KR20160027998A - Inorganic flame retardant fireproof complex for fire control and method of manufacturing the same - Google Patents
Inorganic flame retardant fireproof complex for fire control and method of manufacturing the same Download PDFInfo
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- KR20160027998A KR20160027998A KR1020140108372A KR20140108372A KR20160027998A KR 20160027998 A KR20160027998 A KR 20160027998A KR 1020140108372 A KR1020140108372 A KR 1020140108372A KR 20140108372 A KR20140108372 A KR 20140108372A KR 20160027998 A KR20160027998 A KR 20160027998A
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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Abstract
Description
FIELD OF THE INVENTION The present invention relates to an inorganic flame-retardant fire-resistant composite and a method of manufacturing the same, and more particularly, to an inorganic flame-retardant fire-retardant composite for fire suppression which can be solidified by itself without external heating by mixing an inorganic refractory agent with self- And a manufacturing method thereof.
In recent years, the need for flame retardation in consideration of safety in the event of a fire has been increased, and regulations for harmful substances such as harmful gases generated are increasing. Therefore, it is gradually becoming important to switch from halogen-based flame-retardant materials used in the past to environment-friendly inorganic halogen-free flame retardant materials.
In addition, since we are living in potentially inflammable materials such as furniture, carpets, and paper in daily life, flame retardants are very helpful in minimizing the damage caused by such fires.
A related prior art document is Korean Patent Registration No. 10-0755234 (published on Apr. 4, 2007), which discloses a flame retardant synthetic resin foam and a method for producing the same.
An object of the present invention is to solve the problems of a flame retardant material in which a conventional ceramic powder is mixed with a polymer, and an inorganic refractory agent such as Al (OH) 3 and Mg (OH) 2 is sintered It is mixed with the self-solidifying inorganic material of cement, and it is made into the form of foam in the form of foam in order to enhance the improvement of the flame retardant property. By increasing the specific surface area through porosity, the flame retardant reaction is promoted, And to provide a method for producing the inorganic flame-retardant fire-resistant composite.
According to an aspect of the present invention, there is provided an inorganic refractory fire-resistant composite for fire suppression according to an embodiment of the present invention, which is formed of an inorganic refractory agent and a self-solidifying inorganic material, and is solidified at room temperature.
According to an aspect of the present invention, there is provided a method of manufacturing a fire retardant fire retardant composite for fire suppression, comprising: (a) forming a slurry by adding an inorganic refractory agent to a solvent; (b) adding a surfactant to the slurry, ultrasonically treating the slurry for 0.5 to 2 hours, and dispersing and stirring to form a foam; (c) adding a self-solidifying inorganic material to the foam, and stirring the foam for 10 to 60 minutes to form a foamed foam; And (d) pouring the foamed foam into a mold, followed by drying and curing at room temperature to form a refractory composite.
According to another aspect of the present invention, there is provided a fire-retardant fire retardant fire-resistant composite according to another embodiment of the present invention, which is formed of an inorganic refractory agent and a self-solidifying inorganic material, and is solidified by a crosslinking reaction.
According to another aspect of the present invention, there is provided a method of manufacturing a fire retardant fire retardant composite for fire suppression, comprising: (a) mixing and stirring an inorganic refractory agent and a self-solidifying inorganic material in a solvent to form a slurry; (b) injecting the slurry into a mold and drying to form a formed body; And (c) crosslinking the molded body at a softening temperature or lower to form a refractory composite.
The fire retardant fire retardant fire retardant composite according to the present invention and the method for producing the fire retardant inorganic fire retardant composite according to the present invention are characterized in that an inorganic refractory agent such as Al (OH) 3 and Mg (OH) 2 is self- In order to improve the flame retardant property with mixing, it is made into a porous form in the form of a foam. In addition, the effect of heat insulation can be obtained when applied as a building material. It is possible to increase the cost efficiency by reducing the raw material have.
In addition, since the inorganic fire retardant refractory composite for fire suppression according to the present invention and the method for producing the same are porous, the specific surface area is increased to increase the rate of reaction for preventing the flame. The foam is injected in a state where foam is formed in a predetermined mold, It can be used as a thermal insulation material to replace sandwich panels of construction materials.
Particularly, the fire retardant inorganic fire-resistant refractory composite according to the present invention and the method for producing the fire retardant fire retardant composite according to the present invention are formed of a flame retardant material made of an inorganic material, while the polymer material in the sandwich panel, And it is possible to suppress and delay the fire due to moisture generation during the endothermic reaction.
1 is a photograph showing an inorganic fire-retardant fire-resistant composite for fire suppression according to an embodiment of the present invention.
FIG. 2 is a schematic view for explaining a process of forming an ATH composite foam before and after cement addition.
3 is a process flow diagram illustrating a method for manufacturing a fire retardant fire retardant composite for fire control according to an embodiment of the present invention.
FIG. 4 is a process flow diagram illustrating a method for manufacturing an inorganic fire-retardant fire-resistant composite for fire suppression according to another embodiment of the present invention.
5 is a graph showing the zeta potential potential value versus the pH of the ATH powder.
6 is a photograph showing microstructure for Examples 1 to 4 and Comparative Examples 1 and 2.
7 shows microstructural changes of the specimen according to Example 4. Fig.
8 is a view showing the XRD measurement results for the specimen according to Example 2. Fig.
Fig. 9 shows the results of measurement of compressive strength for Examples 1 to 4 and Comparative Examples 1 and 2.
BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fire-retardant inorganic fire-resistant refractory composite according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
1 is a photograph showing an inorganic fire-retardant fire-resistant composite for fire suppression according to an embodiment of the present invention.
Referring to FIG. 1, the fire-retardant fire-retardant fire-
The inorganic fire retardant fire-
The inorganic refractory agent may be selected from Al (OH) 3 (abbreviated as ATH), Mg (OH) 2 (Magnesium dihydroxide, MDH) In general, an inorganic refractory agent is a flame retardant used in combination with a polymer. At this time, the inorganic refiners such as Al (OH) 3 and Mg (OH) 2 reduce the combustion reaction rate by delaying the generation of the flame.
As an example, the principle of retarding the flame generation of the ATH powder is as follows.
Equation 1: 2Al (OH) 3 ( s) → Al 2 O 3 (s) + 3H 2 O (g)
As shown in Equation (1) above, ATH powder is a material that is decomposed into water and alumina at around 200 ° C. When heat is applied through a fire or the like, heat is absorbed by an endothermic reaction, , Or enables evolution. The heat generated by the thermal decomposition of the ATH powder causes an endothermic loss of about 35%, which is about 1170 to 1300 J / g.
At this time, since the ATH is changed from a high temperature to a more stable alumina form, it can also act as a barrier to suppress the progress of the fire. In addition, the water vapor formed by the vaporization of water generated at this time by the surrounding heat can also show an effect of suppressing the generation of smoke when a fire occurs.
Table 1 shows the physical properties of ATH.
[Table 1]
As shown in Table 1, ATH was generally used as a flame retardant material in combination with a polymer to compensate for the disadvantages of the polymer. Therefore, it is known that at least 60% of flame retardant material should be included in order to maximize the characteristics. However, the polymer flame retardant containing a high content of ATH and the like does not have high mechanical properties, and studies are being conducted to solve the problem.
In order to solve this problem fundamentally, it would be ideal if all of the flame retardants were made of inorganic materials. However, in general, in order to maintain the mechanical strength of the inorganic material, a heat treatment process called firing is indispensably required. At this time, ATH starts to decompose at over 220 ° C. and changes into bohemite phase at a high temperature firing process, and changes to alumina phase at a temperature of 600 ° C. or higher.
Thus, the fired material can no longer exhibit the flame resistance characteristic since the original ATH phase is decomposed and removed.
Therefore, in the present invention, this problem is solved by mixing a self-coagulating inorganic material which is self-setting which does not require baking such as cement in the inorganic refractory agent. At this time, the self-solidifying inorganic material may be a cement inducing a pozzolanic reaction. Specific examples of the cement include, but are not limited to, Portland cement.
In addition, the inorganic fire-retardant fire-
Particularly, in order to utilize the ATH powder as the fire retardant inorganic fire-resistant
In addition, when the mixed material of ATH powder and cement powder is made porous by introducing the foaming process during manufacturing, it is possible to reduce the cost of the raw material and maximize the heat insulation effect when used as a building material. In addition, when the slurry in which the foaming process is performed is charged in the form of foam slurry in a certain type of structure before the cement reaction occurs, the flame-retarding effect can be effectively maximized after the slurry is solidified.
In recent years, polymer materials charged between sandwich panels are not only easily melted in the event of a fire, but also generate toxic gas to replace them with inorganic substances.
Therefore, as in the present invention, when a porous slurry foamed between the sandwich panels is charged, solidification of the cement is performed according to the shape of the panel, so that compatibility with the composite material is very high. Especially, It is also possible to demonstrate the possibility of an intelligent material which not only does not occur, but also shows smart function of generating fire by dissolving ATH powder and decomposing it.
At this time, in the present invention, it was not modified with a strong acid solution or a strong base solution. This is because ATH can react with any of the acid bases and decomposes into many reactions, which may deteriorate flame arrester characteristics. In addition, cement materials are also a mixture of various materials, and various complicated reactions are possible. Therefore, at the time of preparing the powder-stabilized porous foam using the surfactant, the formed foam is immediately solidified in response to the cement reaction, so that the ATH particles are decomposed to minimize the deterioration of the anti-flame suppression.
FIG. 2 is a schematic view for explaining a process of forming an ATH composite foam before and after cement addition. 2 (a) shows the state before cement addition, and FIG. 2 (b) shows the state after cement addition.
As shown in FIG. 2 (a), when the cement powder is added, the foam is entirely made of ATH powder, and it is understood that the fine powder forms an outer coat layer.
On the other hand, as shown in FIG. 2 (b), when cement powder is added, cement powder and ATH powder are uniformly formed, a thin film layer is formed of fine ATH powder and cement powder, It can be seen that it exists.
Meanwhile, the fire-retardant inorganic fire-resistant refractory composite 100 according to another embodiment of the present invention is not limited to mixing and compounding self-solidifying inorganic materials that do not require heat treatment, such as cement, with an inorganic refractory agent, Hereinafter, the self-solidifying type inorganic material that can be solidified through heating is mixed and compounded.
Accordingly, the fire retardant fire retardant fire-
At this time, the inorganic refractory agent may be selected from hydrates including Al (OH) 3 and Mg (OH) 2 . In addition, an inorganic polymer can be used as the self-solidifying inorganic material. At this time, the inorganic polymer may be selected from polysiloxane, polysilane, polycarbosilane, polysilazane, and the like.
Accordingly, the fire retardant inorganic fire-resistant refractory composite 100 according to another embodiment of the present invention may be prepared by mixing an inorganic polymer with a flame retardant such as ATH powder, and then crosslinking the crosslinked product with a low temperature -linking), it is possible to utilize the advantages of the inorganic flame-retardant material.
As described above, the inorganic fire-retardant fire-resistant composite for fire suppression according to the present invention uses a hydrate such as Al (OH) 3 and Mg (OH) 2 as an inorganic refractory agent, and a self- Portland cement is mixed with it to solidify itself at room temperature to solidify it or by using an inorganic polymeric preceramic polymer as the self-coagulating inorganic material in the inorganic refractory material and to have thermal stability such as ceramic by crosslinking reaction at a temperature below the decomposition temperature .
In order to maximize the fire-retardant effect, it is important to broaden the reaction area of the fire-retardant fire-retardant fire-retardant composite according to the present invention. Thus, in order to broaden the surface area, it is necessary to have a spherical pore structure by introducing a foaming process using a surfactant In addition to the effect of improving the flame retardancy by increasing the specific surface area, it is possible to reduce the cost of raw materials through weight reduction and to improve the adiabatic property due to the pore structure. In the slurry stage, By pouring and solidifying it, it is possible to apply it to various shapes.
3 is a process flow diagram illustrating a method for manufacturing a fire retardant fire retardant composite for fire control according to an embodiment of the present invention.
3, the method for manufacturing a fire retardant fire retardant composite according to an embodiment of the present invention includes a slurry forming step S110, a surfactant adding step S120, a self-solidifying inorganic material adding step S130, And a refractory composite forming step S140.
Slurry formation
In the slurry forming step (S110), an inorganic refractory agent is added to the solvent to form a slurry. At this time, at least one solvent selected from water, ethanol, methanol, propanol, etc. may be used.
The inorganic refractory agent is preferably selected from hydrates including Al (OH) 3 and Mg (OH) 2 . In particular, it is preferable that the inorganic refractory agent has an average diameter of 0.5 to 20 탆, more preferably an average diameter of 5 to 10 탆. In order to utilize the inorganic refractory agent as an inorganic fire retardant refractory composite for fire suppression, The coarse powder is advantageous because it does not participate in the cement reaction.
Surfactant addition
In the surfactant addition step (S120), a surfactant is added to the slurry, followed by ultrasonic treatment for 0.5 to 2 hours, followed by dispersion and stirring to form a foam.
At this time, it is preferable to use an anionic surfactant as the surfactant. In particular, sodium dodecyl sulfate (SDS) is preferably used as the anionic surfactant, but it is not limited thereto.
For the ultrasonic treatment, high-intensity ultrasound having a frequency of 15 to 30 KHz and an output power of 80 to 150 W is preferably applied for 0.5 to 2 hours. If the ultrasonic output power is less than 80 W or the ultrasonic treatment time is less than 0.5 hour, dispersion may not be smoothly performed. Conversely, when the ultrasonic output power exceeds 150 W or the ultrasonic treatment time exceeds 2 hours, the specific surface area of the ATH powder is decreased, which is not preferable.
Self-solidifying inorganic additive
In the self-solidifying inorganic material addition step (S130), the self-solidifying inorganic material is added to the foam, and the mixture is stirred for 10 to 60 minutes to form a foamed foam.
At this time, the self-solidifying inorganic material may be a cement inducing a pozzolanic reaction. Specific examples of the cement include, but are not limited to, Portland cement.
Refractory composite formation
In the refractory composite forming step S140, the foamed foam is poured into a mold, followed by drying and curing at room temperature to form a refractory composite. At this time, the room temperature may be 0 to 40 ° C, but is not limited thereto.
Meanwhile, FIG. 4 is a process flow diagram illustrating a method for manufacturing an inorganic fire-retardant fire resistant composite for fire suppression according to another embodiment of the present invention.
As shown in FIG. 4, the method for manufacturing a fire retardant fire retardant composite according to another embodiment of the present invention includes forming a slurry (S210), forming a molded body (S220), and forming a refractory composite body (S230) .
Slurry formation
In the slurry forming step S210, an inorganic refractory agent and a self-solidifying inorganic material are mixed and stirred in a solvent to form a slurry.
At this time, at least one solvent selected from water, ethanol, methanol, propanol, etc. may be used.
The inorganic refractory agent is preferably selected from hydrates including Al (OH) 3 and Mg (OH) 2 . Particularly, it is preferable that the inorganic refractory agent has an average diameter of 0.5 to 20 탆, more preferably an average diameter of 5 to 10 탆. In order to utilize the inorganic refractory agent as an inorganic fire retardant refractory composite for fire suppression, The coarse powder is advantageous because it does not participate in the cement reaction.
The self-solidifying inorganic material may be an inorganic polymer. At this time, the inorganic polymer may be selected from polysiloxane, polysilane, polycarbosilane, polysilazane, and the like.
Formation
In the molded body forming step (S220), the slurry is put into a mold and then dried to form a molded body. That is, it is appropriate that the prepared slurry is immediately poured into a mold to have a desired shape.
Formation of bridging fire-resistant composite
In the molded body bridging furnace refractory composite forming step S230, the molded body is bridged at a softening temperature or lower to form a refractory composite body.
At this time, it is preferable that the crosslinking is carried out at a heating rate of 2 DEG C / min or less to 100 to 180 DEG C and then at 100 to 180 DEG C for 24 to 48 hours. For example, polysiloxane, an inorganic polymer, is a material that can be solidified by crosslinking at 105 ° C, which is lower than the decomposition temperature of ATH powder.
That is, in order to thermally cure the inorganic polymer, it is preferable to maintain the molded body at the maximum temperature heated to 100 to 180 ° C under atmospheric pressure for 24 to 48 hours, and when the holding time at the maximum temperature exceeds 48 hours, Since hardening does not occur, the holding time at the maximum temperature is preferably limited to within 48 hours. At this time, if the heating rate is too high, the curing of the inorganic polymer may not be sufficient, and therefore, it is preferable to control the heating rate to 2 DEG C / min or less.
As described above, the method for producing a fire retardant fire retardant composite according to the present invention uses a hydrate such as Al (OH) 3 or Mg (OH) 2 as an inorganic refractory agent and a cement material Or by using a preceramic polymer as a self-solidifying inorganic material in an inorganic refractory agent, and by virtue of a crosslinking reaction at a temperature lower than the decomposition temperature, Thermal stability can be ensured.
In addition, in order to maximize the fire-retardant effect, it is important to broaden the reaction area of the fire retardant fire retardant composite for fire suppression according to the present invention. Accordingly, in order to increase the surface area, It is possible to have an effect of improving the flame retardancy due to the increase in specific surface area and also to reduce the cost of the raw material through weight reduction and to improve the adiabatic property due to the pore structure, It can be applied to various shapes by solidifying by pouring in a mold.
Example
Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.
The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.
1. Manufacture of inorganic flame-retardant fire-fighting composite
Example 1
100 g of ATH powder having an average diameter of 5.17 mu m was charged into a vessel containing 150 mL of distilled water and stirred to prepare a slurry. Next, sodium dodecyl sulfate (SDS), an anionic surfactant, was added to the slurry, followed by ultrasonic treatment for 1 hour to disperse and stir. Next, the slurry was stirred with a stirrer at 1000 rpm for 15 minutes to form a foam, and then the cement powder having an average diameter of 12.1 占 퐉 was mixed with stirring for 10 minutes to form a foamed foam, The flame retardant composite was prepared by inducing drying and curing at room temperature for curing.
At this time, 60% by weight of ATH powder and 40% by weight of cement powder were added, and ball milling was performed for 4 hours for uniform mixing of cement component and ATH powder.
Example 2
An inorganic flame-retardant fire-resistant composite was prepared in the same manner as in Example 1, except that 50% by weight of ATH powder and 50% by weight of cement powder were added.
Example 3
An inorganic flame-retardant fire-resistant composite was prepared in the same manner as in Example 1, except that 40% by weight of ATH powder and 60% by weight of cement powder were added.
Example 4
An inorganic flame-retardant fire-resistant composite was prepared in the same manner as in Example 1, except that 30% by weight of ATH powder and 70% by weight of cement powder were added.
Comparative Example 1
An inorganic flame-retardant fire-resistant composite was prepared in the same manner as in Example 1 except that 80% by weight of ATH powder and 20% by weight of cement powder were added.
Comparative Example 2
An inorganic flame-retardant fire-resistant composite was prepared in the same manner as in Example 1, except that 100 g of ATH powder was charged into a vessel containing 100 mL of distilled water and then stirred to prepare a slurry.
2. Property evaluation
Table 2 shows the results of physical properties evaluation of the inorganic flame-retardant fire-resistant composite according to Examples 1 to 4 and Comparative Examples 1 and 2. 5 is a graph showing the zeta potential potential value versus pH of the ATH powder, and Fig. 6 is a photograph showing the microstructure of Examples 1 to 4 and Comparative Examples 1 and 2. Fig. 6 (a) and 6 (b) are photographs showing microstructure for Comparative Examples 1 and 2, and FIGS. 6 (c) to 6 (f) are photographs showing microstructures for Examples 1 to 4 to be.
[Table 2]
Referring to Table 2 and FIG. 5, the zeta potential potential of the ATH powder has an isoelectric point (IEP) of 9.8 and exhibits positive (+) polarity at the surface of the particles in a region where the pH is lower than 9.8.
The pH of the slurry solution according to Examples 1 to 4 was measured and found to be 8.8. This is because SDS used as a surfactant adsorbs on the surface of [Al (OH)] + 2 of ATH particles showing an anion at the end of anion (CH 3 - (CH 2 ) 11 -OSO -3 ) in SDS as an anionic surfactant And shows partial hydrophobicity.
Even though ATH particles are stabilized at the gas / liquid interface of foam-like bubbles, SDS, a surfactant with a long chain, has low adsorption energy. However, this results in lowering the surface energy of the liquid phase and stabilizing the bubbles by stirring.
However, since the adsorption energy of the surfactant having a long chain structure is not high, the bubbles are coarsened. Therefore, it is very important to use a curing agent such as cement to maintain the pore structure even in the final state.
As in Examples 1 to 4, cement was used as a curing agent, so that a foam having a well-developed cell structure could be produced. Of course, the viscosity of the slurry was increased due to the mixing of the cement, and the volume of the foam was decreased. However, the porosity was about 86 ~ 93%. In addition, the cement components instantaneously immobilized the bubbles, suppressing the coarsening of the bubbles, and finally maintaining the fine pore structure.
As shown in FIG. 6 (a), the microstructure of Comparative Example 1 had an average pore size of 141, and a uniform pore structure could not be obtained due to the relatively high viscosity. Also, as shown in FIG. 6 (b), in Comparative Example 2, the uniform pore structure was not shown, and the pore size was 116 m.
On the other hand, as shown in FIG. 6 (c), in the case of Example 1 in which the amount of water was increased from 100 ml to 150 ml, bubbles were well formed and the average pore size also decreased to 98 μm. However, the open pore structure is shown as the ratio of relative solute volume decreases as the water volume increases.
Particularly, as shown in FIGS. 6 (d), 6 (e), and 6 (f), in Examples 2 to 4, as the content of cement increases, the pore size decreases to 89, 74, And it was observed that it forms a healthy pore.
On the other hand, Fig. 7 shows the microstructure change for Example 4. Fig. 7 (a) shows a state of a porous article in a macroscopic manner, Fig. 7 (b) shows a state having a uniform pore structure, Fig. 7 (c) , And FIG. 7 (d) shows a state in which porous particles are distributed in a lamellar form in a thin film layer forming a cell at a high magnification.
As shown in Figs. 7 (a) to 7 (d), it was observed that the thickness of the thin film layer was about 1 m. At this time, the film layer is formed of very small powders, which are judged to be composed of ATH and cement powder in the form of small powder or pulverized powder.
Further, the submicron powder is advantageous in that it moves to the gas / liquid interface and stabilizes at the time of foam formation as compared with the coarse powder. As a result of the EDS analysis, the point A in point A is the point where the cement powder is located, and the point B in the point where the calcium component is detected is a mixed portion of ATH and cement powder. The point C is mainly composed of ATH powder and some cement powder.
8 is a view showing the XRD measurement results for the specimen according to Example 2. Fig.
As shown in FIG. 8, as a result of the X-ray diffraction analysis, it was observed that the ATH powder was still present in a large amount in the case of Example 2, even though the ATH component was reacted with the cement powder even after the coarse ATH powder was solidified by the cement reaction , And this shows that ATH powder has the ability to suppress the occurrence of fire.
Fig. 9 shows the results of measurement of compressive strength for Examples 1 to 4 and Comparative Examples 1 and 2.
As shown in Fig. 9, it can be seen that the mechanical properties increase with increasing cement content. That is, as the content of cement increases, it is easy to commercialize it according to the increase of strength, but it is expected that the ATH content is suppressed and the flame retarding effect is decreased.
Further, as a result of TGA test for Examples 1 to 4, as the temperature was increased, the mass decrease was observed, and the decrease amount was decreased as the mass reduction amount was considered considering the amount of water generated by the decomposition of residual ATH It is considered that the effect of preventing flame can be maximized. In the case of ATH powder, the weight reduction amount was 33%, whereas when the cement was added, the amount of mass decrease was decreased in both Example 2 and Example 4, but 22% and 18% were confirmed to have the flame prevention effect.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. These changes and modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the present invention should be determined by the following claims.
S110: Slurry Formation Step
S120: Surfactant addition step
S130: Self-solidifying type inorganic material addition step
S140: Step of forming a refractory composite
S210: Slurry Formation Step
S220: Mold forming step
S230: Step of forming refractory composite body in mold
Claims (20)
Wherein the inorganic refractory material comprises 20 to 60 wt% of the inorganic refractory material and 40 to 80 wt% of the self-solidifying inorganic material.
The inorganic refractory agent
Al (OH) 3, and Mg (OH) 2 .
The inorganic refractory agent
And has an average diameter of 0.5 to 20 占 퐉.
The self-solidifying inorganic material
A cement which induces a pozzolanic reaction,
Wherein said cement comprises Portland cement. ≪ RTI ID = 0.0 > 15. < / RTI >
The inorganic flame retardant fire-resistant composite
And a porosity of 70% or more.
The inorganic flame retardant fire-resistant composite
A fire retardant fire retardant fire resistant composite having a foamed foam structure having spherical pores.
The inorganic refractory agent
Al (OH) 3, and Mg (OH) 2 .
The self-solidifying inorganic material
Wherein the flame-retardant fire-retardant composite is an inorganic polymer.
The inorganic polymer
A fire retardant fire retardant fire retardant composite according to any one of claims 1 to 3, wherein the inorganic fire retardant fire retardant composite is selected from the group consisting of polysiloxane, polysilane, polycarbosilane and polysilazane.
(b) adding a surfactant to the slurry, ultrasonically treating the slurry for 0.5 to 2 hours, and dispersing and stirring to form a foam;
(c) adding a self-solidifying inorganic material to the foam, and stirring the foam for 10 to 60 minutes to form a foamed foam; And
(d) pouring the foamed foam into a mold, followed by drying and curing at room temperature to form a refractory composite.
The solvent
Water, ethanol, methanol, and propanol. ≪ RTI ID = 0.0 > 15. < / RTI >
The surfactant
Anionic surfactants are used,
Wherein the anionic surfactant comprises sodium dodecyl sulfate (SDS). ≪ RTI ID = 0.0 > 15. < / RTI >
The inorganic refractory agent
Al (OH) 3, and Mg (OH) 2 .
The inorganic refractory agent
And having an average diameter of 0.5 to 20 占 퐉.
The self-solidifying inorganic material
A cement which induces a pozzolanic reaction,
Wherein the cement is Portland cement. ≪ RTI ID = 0.0 > 15. < / RTI >
(b) injecting the slurry into a mold and drying to form a formed body; And
(c) crosslinking the molded body at a softening temperature or lower to form a refractory composite.
In the step (c)
The cross-
Wherein the inorganic flame retardant composite is heated to 100 to 180 DEG C at a heating rate of 2 DEG C / min or less, and then maintained at 100 to 180 DEG C for 24 to 48 hours.
The self-solidifying inorganic material
Inorganic polymers are used,
Wherein the inorganic polymer is selected from the group consisting of Polysiloxane, Polysilane, Polycarbosilane, and Polysilazane. 2. The method of claim 1, wherein the inorganic polymer is selected from the group consisting of Polysiloxane, Polysilane, Polycarbosilane and Polysilazane.
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| KR1020140108372A KR101672490B1 (en) | 2014-08-20 | 2014-08-20 | Inorganic flame retardant fireproof complex for fire control and method of manufacturing the same |
| PCT/KR2015/008713 WO2016028104A1 (en) | 2014-08-20 | 2015-08-20 | Inorganic flame-retardant fireproof composite for fire suppression and manufacturing method thereof |
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| KR1020140108372A KR101672490B1 (en) | 2014-08-20 | 2014-08-20 | Inorganic flame retardant fireproof complex for fire control and method of manufacturing the same |
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| WO (1) | WO2016028104A1 (en) |
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|---|---|---|---|---|
| KR20190017174A (en) * | 2017-08-10 | 2019-02-20 | 서울시립대학교 산학협력단 | A Coating Material with Crack Healing and Anti-fire for Substrates and It's Coating Method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108342087B (en) * | 2018-03-06 | 2021-03-26 | 哈尔滨理工大学 | Inorganic flame retardant, preparation method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050071426A (en) * | 2005-06-15 | 2005-07-07 | 손진호 | Rigid fireproof and soundfroof material using inorganic fiber and thereby manufacturing method |
| JP2008247651A (en) * | 2007-03-29 | 2008-10-16 | Kubota Matsushitadenko Exterior Works Ltd | Cement board |
| KR20110108075A (en) * | 2010-03-26 | 2011-10-05 | 신강하이텍(주) | New composition and method in coating technique for fire resistive coatings |
| KR20110123476A (en) * | 2010-05-07 | 2011-11-15 | 동남이엔씨(주) | Eco-friendly silicon fireproof material for civil structure enabling difficult combustion |
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| KR101479558B1 (en) * | 2012-12-05 | 2015-01-13 | 주식회사 경동원 | Inorganic expandable refractory composition |
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- 2015-08-20 WO PCT/KR2015/008713 patent/WO2016028104A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050071426A (en) * | 2005-06-15 | 2005-07-07 | 손진호 | Rigid fireproof and soundfroof material using inorganic fiber and thereby manufacturing method |
| JP2008247651A (en) * | 2007-03-29 | 2008-10-16 | Kubota Matsushitadenko Exterior Works Ltd | Cement board |
| KR20110108075A (en) * | 2010-03-26 | 2011-10-05 | 신강하이텍(주) | New composition and method in coating technique for fire resistive coatings |
| KR20110123476A (en) * | 2010-05-07 | 2011-11-15 | 동남이엔씨(주) | Eco-friendly silicon fireproof material for civil structure enabling difficult combustion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190017174A (en) * | 2017-08-10 | 2019-02-20 | 서울시립대학교 산학협력단 | A Coating Material with Crack Healing and Anti-fire for Substrates and It's Coating Method |
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| Publication number | Publication date |
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| KR101672490B1 (en) | 2016-11-04 |
| WO2016028104A1 (en) | 2016-02-25 |
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