TWI815355B - Fireproof material and manufacturing method of the same and fireproof composite material - Google Patents

Abstract

The embodiments of the present application provide a fireproof material and a manufacturing method of the same and a fireproof composition material. Functionalized two-dimensional nanomaterials can disperse uniformly in the fireproof material without aggregation so that the thermal conductivity and flame resistance are increased, thereby improving the overall performance of the fireproof material.

Description

Fireproof materials and manufacturing methods and fireproof composite materials

The present invention relates to fireproof materials and manufacturing methods thereof, in particular to fireproof materials containing functionalized two-dimensional nanomaterials and manufacturing methods thereof.

Fireproofing materials must remain chemically and physically stable at high temperatures. Materials with high melting points such as alumina, silica, magnesium oxide, calcium oxide, etc. are important raw materials for manufacturing fireproof materials. In addition to the main raw materials mentioned above, other substances are added to fireproofing materials to further enhance the desired properties.

The so-called two-dimensional nanomaterials refer to materials in which only one dimension among the three dimensions of length, width and height is nanoscale. When the block material is reduced to the nanometer scale, the properties of the material itself, such as thermal, optical, electrical, magnetic, mechanical and other properties, will undergo completely different changes from those of the macroscopic world. Two-dimensional nanomaterials can be used for heat insulation and heat dissipation based on their thermal properties. Two-dimensional nanomaterials are also used as high-temperature resistant materials.

However, although many high-temperature-resistant materials are known, due to differences in physical or chemical compatibility between the materials, simply mixing these high-temperature-resistant materials may not produce the desired effect and cannot be manufactured. Become an ideal fireproof material. Therefore, how to further improve the performance of fireproof materials is still one of the current research and development directions.

The fireproof material, its manufacturing method and the fireproof composite material provided by the embodiments of the present invention can solve the problem that fireproof materials cannot be made into ideal fireproof materials due to differences in compatibility.

One embodiment of the present invention provides a fireproof material, which includes functionalized two-dimensional nanomaterials, water glass and gypsum, wherein the functionalized two-dimensional nanomaterials have a planar hexagonal structure.

One embodiment of the present invention provides a fireproof composite material, which includes the aforementioned fireproof material and a base material.

One embodiment of the present invention provides a method for manufacturing fireproof materials, which includes: functionalizing two-dimensional nanomaterials to form functionalized two-dimensional nanomaterials; and uniformly mixing the functionalized two-dimensional nanomaterials with water glass and gypsum.

The fireproof materials and their manufacturing methods and fireproof composite materials provided by embodiments of the present invention form functionalized two-dimensional nanomaterials by functionalizing two-dimensional nanomaterials, so that the functionalized two-dimensional nanomaterials can be used in fireproof materials. With improved dispersion, it can be mixed with other materials more evenly without agglomeration. This can increase the heat-resistant temperature of fire-resistant materials, reduce the degree of carbonization, and improve flame resistance, thus improving the overall performance of fire-resistant materials.

The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient to enable anyone skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. Based on the content disclosed in this specification, the patent scope and the drawings, , anyone familiar with the relevant arts can easily understand the relevant objectives and advantages of the present invention. The following examples further illustrate the present invention in detail, but do not limit the scope of the present invention in any way.

Please refer to Figure 1, which is a schematic diagram of a fireproof material according to an embodiment of the present invention. The fireproof material according to an embodiment of the present invention includes functionalized two-dimensional nanomaterial 1, water glass 2 and gypsum 3, wherein the functionalized two-dimensional nanomaterial 1 has a planar hexagonal structure. Water glass, gypsum, and two-dimensional nanomaterials 1 with planar hexagonal structures all have good heat resistance. However, both water glass 2 and gypsum 3 are hydrophilic materials. If the two-dimensional nanomaterial is a hydrophobic material, it cannot be mixed evenly with water glass and gypsum in the slurry, and may agglomerate, resulting in poor flame resistance when heated. All, reduce the heat resistance reliability of fireproof materials. In the present invention, the functionalized two-dimensional nanomaterial can maintain its good heat resistance, and at the same time improve its hydrophilicity through functional groups, so that it can be mixed with water glass and gypsum more evenly in the slurry. to improve its dispersion. Uniformly dispersed functionalized two-dimensional nanomaterials can improve thermal conductivity and help heat dispersion, thereby improving the heat resistance and reliability of fireproof materials. In addition, the heat-resistant temperature measured by the differential scanning calorimetry method of the fireproof material according to the embodiment of the present invention can be above 120°C.

Water glass refers to sodium metasilicate with the chemical formula Na ₂ SiO ₃ , which is the main component of commercially available sodium silicate solutions. Water glass is an ionic compound, which is composed of sodium ions (Na ⁺ ) and polymerized metasilicate ([-SiO ₃ ^2- -] _n ). It is a colorless, crystalline, hygroscopic, and deliquescent solid that is soluble in Water can produce an alkaline aqueous solution, which is insoluble in alcohols and has a melting point of 1088°C. Applications of water glass can include fireproof materials, adhesives, ceramic slurries, dye auxiliaries, etc.

Gypsum is a mineral whose main chemical component is calcium sulfate. It usually exists in the form of crystal water. It naturally exists in the form of calcium sulfate dihydrate (CaSO ₄ ·2H ₂ O). The melting point of anhydrous calcium sulfate is 1460° C. Applications of gypsum can include fertilizers, industrial materials, medical materials, construction materials, food additives, pigments, etc.

Functionalized two-dimensional nanomaterials are materials formed by functionalizing two-dimensional nanomaterials. Two-dimensional nanomaterials with planar hexagonal structure and good heat resistance include graphene, hexagonal boron nitride (h-BN), etc. Specifically, the functionalized two-dimensional nanomaterial can be a hydroxylated two-dimensional nanomaterial, but is not limited thereto. In other embodiments, the functionalized two-dimensional nanomaterial can also be a two-dimensional nanomaterial having functional groups that can form hydrogen bonds with other materials. The increase in hydroxyl groups (-OH) on the surface of hydroxylated two-dimensional nanomaterials can increase the hydrophilicity of the two-dimensional nanomaterials, thereby allowing them to be mixed more evenly with water glass and gypsum in the slurry to improve their dispersion. sex. Hydroxylated two-dimensional nanomaterials can be hydroxylated graphene oxide (Figure 2), hydroxylated hexagonal boron nitride (Figure 3), etc. In one embodiment, the weight percentage concentration of hydroxylated graphene oxide in the fireproof material may be 1% to 9%. In other embodiments, the weight percentage concentration of hydroxylated graphene oxide in the fireproof material may be 1%, 3%, 5%, 7% or 9%. In another embodiment, the weight percentage concentration of hydroxylated hexagonal boron nitride in the fireproof material is 1% to 9%. In other embodiments, the weight percent concentration of hydroxylated hexagonal boron nitride in the fireproof material may be 1%, 3%, 5%, 7% or 9%.

Please refer to Figure 1. A fireproof composite material according to an embodiment of the present invention includes the above-mentioned fireproof material of the present invention and a substrate S. The base material S can be stainless steel plate, wooden board, cotton cloth, plastic, etc. The fireproof material of the present invention can be covered with the base material by conventional methods such as coating, dipping, spraying, etc. to achieve the purpose of fireproofing.

Please refer to FIG. 4 , which is a flow chart of a method for manufacturing a fireproof material according to an embodiment of the present invention. The method for manufacturing a fireproof material according to an embodiment of the present invention includes: functionalizing two-dimensional nanomaterials to form functionalized two-dimensional nanomaterials (S11); and combining the functionalized two-dimensional nanomaterials with water glass and gypsum. Mix evenly (S12). Specifically, please refer to FIG. 5 , which is a flow chart of a method for manufacturing a fireproof material according to an embodiment of the present invention. The method for manufacturing a fireproof material according to an embodiment of the present invention may include: hydroxylating two-dimensional nanomaterials to form hydroxylated two-dimensional nanomaterials (S21); and combining the hydroxylated two-dimensional nanomaterials with water glass and Gypsum is mixed evenly (S22). By increasing the hydroxyl groups on the surface of the two-dimensional nanomaterials through hydroxylation, the hydrophilicity of the two-dimensional nanomaterials can be increased, whereby the hydroxylated two-dimensional nanomaterials can be mixed with water glass and gypsum more evenly in the slurry. to improve its dispersion.

More specifically, please refer to FIGS. 2 and 6 . FIG. 2 is a schematic diagram of hydroxylated graphene oxide according to an embodiment of the present invention. FIG. 6 is a flow chart of a method for manufacturing a fireproof material according to an embodiment of the present invention. The method for manufacturing a fireproof material according to an embodiment of the present invention may include: modifying graphene oxide with neopentyl erythritol to obtain hydroxylated graphene oxide (S31); and combining hydroxylated graphene oxide and water glass. and gypsum are evenly mixed (S32).

Pentaerythritol (C(CH ₂ OH) ₄ ) is a polyol organic compound, and one molecule of pentaerythritol has four hydroxyl groups. As shown in Figure 2, one molecule of neopentylerythritol can provide three hydrophilic hydroxyl groups on the surface of graphene oxide, thereby greatly improving the hydrophilicity of hydroxylated graphene oxide, thereby improving its dispersion and differentiating it from other Hydrophilic materials mix more evenly without clumping.

In addition, reference can also be made to FIG. 3 and FIG. 7 . FIG. 3 is a schematic diagram of hydroxylated hexagonal boron nitride according to an embodiment of the present invention. FIG. 7 is a flow chart of a method for manufacturing a fireproof material according to an embodiment of the present invention. The method for manufacturing a fireproof material according to an embodiment of the present invention may include: obtaining hydroxylated hexagonal boron nitride (S41) by ball milling hexagonal boron nitride in water; and combining hydroxylated hexagonal boron nitride and water glass. and gypsum are evenly mixed (S42).

Using a high-energy ball mill to ball-mill hexagonal boron nitride in water can break the chemical bonds on the surface of hexagonal boron nitride, allowing the hydroxyl groups in the water to connect to the surface of hexagonal boron nitride to increase the hydrophilic groups of hexagonal boron nitride. Compared with hexagonal boron nitride, the hydrophilicity of hydroxylated hexagonal boron nitride as shown in Figure 3 has been greatly improved to improve its dispersion and mix more evenly with other hydrophilic materials without agglomeration.

The following describes the preparation and fireproof test of the fireproof material according to the embodiment of the present invention.

[Preparation of fireproof materials and fireproof composite materials containing hydroxylated graphene oxide]

Graphene can be exfoliated from natural graphite powder by a modified Hummers method. First, 5 grams of natural graphite powder is mixed with 120 ml of a strong oxidizing agent solution in an ice bath to form a slurry. The strong oxidizing agent solution may include, for example, 1 M potassium permanganate (KMnO ₄ ) and concentrated sulfuric acid. The slurry was stirred continuously for 2 hours and then slowly heated to 98°C for 15 minutes. Next, the slurry is neutralized to a pH value of 6 to 7 with a weak base (such as potassium hydroxide (KOH) or sodium hydroxide (NaOH)) and subjected to several cycles of filtration and washing with distilled water. Next, graphene oxide powder was prepared by drying the slurry in an oven at 105°C overnight. Next, the prepared graphene oxide powder was treated with 0.462 g of neopentyl erythritol (chemical formula C ₅ H ₁₂ O ₄ , molecular weight 136.15 g/mol, melting point 276°C) by chemical-wet impregnation. Perform functionalization, that is, hydroxylation. Chemical immersion is performed in an ultrasonic bath at room temperature for 1 hour to complete surface modification in the liquid phase to form functionalized graphene oxide (FGO), also known as hydroxylated graphene oxide.

Next, hydroxylated graphene oxide was mixed with water glass and gypsum in different proportions to prepare fireproof materials. To improve uniformity, use zirconium balls and mix in a three-dimensional mixer for 10 minutes. In this way, fireproof materials containing hydroxylated graphene oxide at different concentrations can be obtained (the following examples 1-1 to 1-5: the weight percentage concentration of hydroxylated graphene oxide in the fireproof material is 1%, 3%, 5%, 7%, 9%).

Next, prepare a rectangular wooden board or stainless steel plate (4×5 square centimeters) with an average thickness of about 0.8 cm, use a scraper to apply the above fireproof material containing hydroxylated graphene oxide on the wooden board or stainless steel, and then heat it at 40°C. After drying in the oven overnight, a fire-resistant composite material is obtained.

[Preparation of fireproof materials and fireproof composite materials containing hydroxylated hexagonal boron nitride]

Hexagonal boron nitride can be modified by using the 3D ball milling method. Mix hexagonal boron nitride nanoparticles (purity >98%) and glycine (purity >99%) evenly with distilled water in a stainless steel container, and ball mill with a 3D ball mill (Spex 8000M) under air for 15 minutes. The weight ratio of hexagonal boron nitride nanoparticles to glycine can be set to 20:1. To ensure uniform mixing, multiple stainless steel spheres can be used in a stainless steel vessel during 3D ball milling. Using ultra-high speed can efficiently oxidize hexagonal boron nitride in large quantities. The presence of glycine protects the hexagonal boron nitride and prevents the formation of lattice defects. After completing the 3D ball milling, the obtained hydroxylated hexagonal boron nitride was mixed with distilled water and kept at room temperature for 2 hours, followed by ultrasonic treatment for 5 minutes, and centrifuged at 1500 rpm for about 3 minutes to remove large particles. . The supernatant after centrifugation was collected and the sonication was repeated three times to ensure that excess glycine was removed. Finally, the hydroxylated hexagonal boron nitride was dehydrated and dried in a vacuum oven at 80°C overnight to complete the hydroxylated hexagonal boron nitride.

Next, hydroxylated hexagonal boron nitride was mixed with water glass and gypsum in different proportions to prepare fireproof materials. In order to improve the uniformity, the aforementioned mixing step can be performed using zirconium balls in a three-dimensional mixer for 10 minutes. In this way, fireproof materials containing hydroxylated hexagonal boron nitride at different concentrations can be obtained (the following Examples 2-1 to 2-5: the weight percentage concentration of hydroxylated hexagonal boron nitride in the fireproof material is 1%, 3% %, 5%, 7%, 9%).

Next, prepare a rectangular cotton cloth (4 × 5 square centimeters) with an average thickness of about 1 cm, apply the above fireproof material containing hydroxylated hexagonal boron nitride on the cotton cloth, and then dry it in an oven at 40°C overnight. Get fire-resistant composites.

[Characteristics of fireproof materials]

Use field emission scanning electron microscopy (FE-SEM, JEOL, JSM-5600) and high-resolution transmission electron microscopy (HR-TEM, JEOL, JEM-2100) to analyze the morphology and structure of functionalized two-dimensional nanomaterials . A thermogravimetric analyzer (TGA, Perkin Elmer TA7) and a differential scanning calorimeter (DSC, TA Instrument Q20) were used to analyze the thermal stability and calorimetric changes of fireproof materials. The thermogravimetric analysis was performed in the air at 5°C/ The heating rate is from 50°C to 800°C in minutes.

[Flame resistance test]

A flamethrower was used to evaluate the flame resistance of samples coated with fire-retardant materials, that is, the flame resistance of fire-retardant composites. The distance between the coating of fireproof material and the top of the flame is about 5cm. The temperature of the flamethrower is about 1100°C. Use three thermocouples (K type) to measure the surface temperature of the sample in real time. For the test procedure, please refer to "British Fire Protection and Flame Retardant" Test BS 476: Part 7".

[Test results]

Embodiments 1-1 to 1-5 of the present invention are fireproof materials using hydroxylated graphene oxide (expressed as FGO in Table 1) with weight percentage concentrations of 1%, 3%, 5%, 7%, and 9% respectively. , Examples 2-1 to 2-5 of the present invention use hydroxylated hexagonal boron nitride (expressed as FBN in Table 1) with weight percentages of 1%, 3%, 5%, 7%, and 9% respectively. Fireproof materials, detailed composition ratios are disclosed in Table 1.

Table 1 Water glass (ml) Gypsum (g) FGO (grams) FGO (%) Example 1-1 30 0.072 0.3 1 Example 1-2 30 0.072 0.9 3 Example 1-3 30 0.072 1.5 5 Examples 1-4 30 0.072 2.1 7 Examples 1-5 30 0.072 2.7 9 Water glass (ml) Gypsum (g) FBN (grams) FBN (%) Example 2-1 30 0.072 0.3 1 Example 2-2 30 0.072 0.9 3 Example 2-3 30 0.072 1.5 5 Example 2-4 30 0.072 2.1 7 Example 2-5 30 0.072 2.7 9

Figure 8 shows SEM and TEM images of hydroxylated graphene oxide, (a) is SEM, (b) is TEM. As shown in Figure 8, the surface structure of hydroxylated graphene oxide has not changed much due to functionalization. It is still a two-dimensional nanomaterial with a layered structure, so it can retain the excellent heat resistance of graphene itself.

Figure 9 is an SEM image of a fireproof material containing hydroxylated graphene oxide. (a) and (b) are fireproof materials containing unfunctionalized graphene oxide. (c) is Example 1-1 (1 wt%) fireproof material, (d) is the fireproof material of Example 1-5 (9 wt%). As shown in Figure 9, unfunctionalized graphene oxide will agglomerate together in the slurry and have a denser distribution. In comparison, hydroxylated graphene oxide is evenly distributed in the slurry and has good dispersion.

Figure 10 is an analysis chart of TGA and DSC of a fireproof material containing hydroxylated graphene oxide, (a) is Example 1-1, 1-3, 1-5 (1 wt%, 5 wt%, 9 wt%) Thermogravimetric loss analysis, (b) is the differential scanning calorimetry analysis of Examples 1-1, 1-3, and 1-5 (1 wt%, 5 wt%, and 9 wt%). As shown in Figure 10, in the thermogravimetric loss analysis, increasing the proportion of hydroxylated graphene oxide in the fireproof material can increase the solid content, indicating that the thermal stability becomes better. In differential scanning calorimetry analysis, the proportion of hydroxylated graphene oxide in the fireproof material increases, and the temperature corresponding to the exothermic peak becomes higher, which indicates that the temperature at which the fireproof material undergoes phase change or chemical change becomes higher, and also indicates the heat resistance of the fireproof material. As shown in the figure, the heat-resistant temperature is above 120°C.

Figure 11 shows the flame resistance test results of a wooden board coated with a fireproof material containing hydroxylated graphene oxide, (a) is a wooden board coated with the fireproof material of Example 1-1 (1 wt%), (b) is a coating example 1-5 (9 wt%) fire-resistant wood boards. Use a flamethrower at about 1100°C to spray and burn a wooden board coated with fireproof material for 10 seconds. The results are shown in Figure 11. The picture on the left is before burning, and the picture on the right is after burning. The light marks in the burning marks are defined as the coking area, and the dark marks in the center are defined as the carbonized area.

Figure 12 shows the flame resistance test results of a wooden board coated with a fireproof material containing hydroxylated graphene oxide, (a) is a wooden board coated with the fireproof material of Example 1-1 (1 wt%), (b) is a coating example 1-5 (9 wt%) fire-resistant wood boards. Use a flamethrower at about 1100°C to spray and burn the wooden board coated with fireproof material for 40, 50, and 60 seconds. The results are shown in Figure 12.

Figure 13 is an analysis of the carbonization ratio of the flame resistance test in Figure 11. The carbonization ratio is defined as the ratio of the carbonized area to the sum of the carbonized area and coking area. As shown in Figures 11 to 13, as the proportion of hydroxylated graphene oxide increases, the carbonized area and carbonization ratio will decrease. It can be seen that hydroxylated graphene oxide helps reduce the degree of carbonization of fireproof materials.

Figure 14 shows the carbonization ratio analysis of the flame resistance test of wooden boards and stainless steel plates coated with fireproof materials containing hydroxylated graphene oxide. (a) is the wooden board, (b) is the stainless steel plate, the solid points and hollow points respectively represent the coating implementation. Fireproof materials of Example 1-1 (1 wt%) and Example 1-5 (9 wt%). As shown in Figure 14, the carbonization ratio increases as the combustion time increases, while the proportion of hydroxylated graphene oxide increases and the carbonization ratio decreases. In addition, the thermal conductivity characteristics of the substrate itself, the degree of surface unevenness, and the presence or absence of pores will also affect the degree of carbonization. However, overall, as the proportion of hydroxylated graphene oxide increases, the proportion of carbonization decreases. It can be seen that no matter what kind of substrate it is applied to, hydroxylated graphene oxide can help reduce the carbonization degree of fire-proof materials.

Figure 15 shows the SEM and TEM images of hydroxylated hexagonal boron nitride. (a) is SEM and (b) is TEM. As shown in Figure 15, the surface structure of hydroxylated hexagonal boron nitride has not changed much due to functionalization. It is still a two-dimensional nanomaterial with a layered structure, so the hydroxylated hexagonal boron nitride itself can be retained. Excellent heat resistance.

Figure 16 is an SEM image of a fire retardant material containing hydroxylated hexagonal boron nitride. (a) is a fire retardant material containing unfunctionalized hexagonal boron nitride, (b) is Example 2-1 (1 wt% ) of the fireproof material, (c) is the fireproof material of Example 2-3 (5 wt%), (d) is the fireproof material of Example 2-5 (9 wt%). As shown in Figure 16, unfunctionalized hexagonal boron nitride will agglomerate together in the slurry and have a dense distribution. In comparison, hydroxylated hexagonal boron nitride is evenly distributed in the slurry and has good dispersion. .

Figure 17 is an analysis chart of TGA and DSC of fireproof materials containing hydroxylated hexagonal boron nitride. (a) is Example 2-1, 2-3, 2-5 (1 wt%, 5 wt%, 9 wt% ), (b) is the differential scanning calorimetry analysis of the fireproof materials of Examples 2-1, 2-3, and 2-5 (1 wt%, 5 wt%, and 9 wt%). As shown in Figure 17, in the thermogravimetric loss analysis, increasing the proportion of hydroxylated hexagonal boron nitride in the fireproof material can increase the solid content, indicating that the thermal stability becomes better. In differential scanning calorimetry analysis, the proportion of hydroxylated hexagonal boron nitride in the fireproof material increases, and the temperature corresponding to the exothermic peak becomes higher, which indicates that the temperature at which the fireproof material undergoes phase change or chemical change becomes higher, and also indicates the heat resistance of the fireproof material. As shown in the figure, the heat-resistant temperature is above 120°C.

Figure 18 shows the burn-through time analysis and carbonization ratio analysis of the flame resistance test of cotton cloth coated with a fireproof material containing hydroxylated hexagonal boron nitride. (a) is the burn-through time analysis, and (b) is the carbonization ratio analysis. Burn-through time is defined as the time it takes for the flame to burn through the cotton. As shown in Figure 18, as the proportion of hydroxylated hexagonal boron nitride increases, the burn-through time increases, and the carbonization proportion decreases. It can be seen that hydroxylated hexagonal boron nitride can help improve the flame resistance of fire-proof materials and reduce the carbonization degree of fire-proof materials.

Figure 19 is the flame resistance test results of cotton cloth coated with a fireproof material containing hydroxylated hexagonal boron nitride. (a) is a configuration diagram of the device. (b) and (c) are respectively the results of the coating with Example 2-1 ( 1 wt%) fire-retardant material cotton cloth was sprayed and burned for 10 seconds and 17 seconds, (d), (e) and (f) respectively sprayed and burned the cotton cloth coated with the fire-retardant material of Example 2-5 (9 wt%) 10 seconds, 20 seconds and 32 seconds. It can be seen that hydroxylated hexagonal boron nitride can help improve the flame resistance of fireproof materials.

It can be seen from the above test results that hydroxylated hydroxylated graphene oxide and hydroxylated hexagonal boron nitride are two-dimensional nanomaterials with a layered structure. They retain excellent heat resistance and are hydrophilic through the hydroxyl groups on their surfaces. Improved, so it can be mixed more evenly with hydrophilic water glass and gypsum in the slurry to improve its dispersion and thermal conductivity. Adding hydroxylated graphene oxide and hydroxylated hexagonal nitridation to fire-proof materials can help increase the heat-resistant temperature of fire-proof materials, reduce the degree of carbonization, improve flame resistance, and thus improve the heat resistance and reliability of fire-proof materials.

The fireproof materials and their manufacturing methods and fireproof composite materials provided by embodiments of the present invention form functionalized two-dimensional nanomaterials by functionalizing two-dimensional nanomaterials, so that the functionalized two-dimensional nanomaterials can be used in fireproof materials. With improved dispersion, it can be mixed with other materials more evenly without agglomeration. This can increase the heat-resistant temperature of fire-resistant materials, reduce the degree of carbonization, and improve flame resistance, thus improving the overall performance of fire-resistant materials.

Although the present invention is disclosed in the foregoing embodiments, they are not intended to limit the present invention. All changes and modifications made without departing from the spirit and scope of the present invention shall fall within the scope of patent protection of the present invention. Regarding the protection scope defined by the present invention, please refer to the attached patent application scope.

1: Functionalized two-dimensional nanomaterials 2:water glass 3:Gypsum S:Substrate S11, S12, S21, S22, S31, S32, S41, S42: Steps

Figure 1 is a schematic diagram of a fireproof material according to an embodiment of the present invention.

Figure 2 is a schematic diagram of hydroxylated graphene oxide according to an embodiment of the present invention.

Figure 3 is a schematic diagram of hydroxylated hexagonal boron nitride according to an embodiment of the present invention.

Figure 4 is a flow chart of a method for manufacturing a fireproof material according to an embodiment of the present invention.

Figure 5 is a flow chart of a method for manufacturing a fireproof material according to an embodiment of the present invention.

Figure 6 is a flow chart of a method for manufacturing a fireproof material according to an embodiment of the present invention.

Figure 7 is a flow chart of a method for manufacturing a fireproof material according to an embodiment of the present invention.

Figure 8 shows SEM and TEM images of hydroxylated graphene oxide.

Figure 9 is an SEM image of a fireproof material containing hydroxylated graphene oxide.

Figure 10 is a TGA and DSC analysis chart of a fireproof material containing hydroxylated graphene oxide.

Figure 11 shows the flame resistance test results of wooden boards coated with fireproof materials containing hydroxylated graphene oxide.

Figure 12 shows the flame resistance test results of wooden boards coated with fireproof materials containing hydroxylated graphene oxide.

Figure 13 is an analysis of the carbonization ratio of the flame resistance test in Figure 11.

Figure 14 is an analysis of the carbonization ratio in the flame resistance test of wooden boards and stainless steel plates coated with fireproof materials containing hydroxylated graphene oxide.

Figure 15 shows SEM and TEM images of hydroxylated hexagonal boron nitride.

Figure 16 is an SEM image of a fireproof material containing hydroxylated hexagonal boron nitride.

Figure 17 is a TGA and DSC analysis chart of a fireproof material containing hydroxylated hexagonal boron nitride.

Figure 18 shows the burn-through time analysis and carbonization ratio analysis of the flame resistance test of cotton cloth coated with a fireproof material containing hydroxylated hexagonal boron nitride.

Figure 19 shows the flame resistance test results of cotton cloth coated with a fireproof material containing hydroxylated hexagonal boron nitride.

1: Functionalized two-dimensional nanomaterials

2:water glass

3:Gypsum

S:Substrate

Claims (4)

A fireproof material, including a functionalized two-dimensional nanomaterial, a water glass and a gypsum, wherein the functionalized two-dimensional nanomaterial has a planar hexagonal structure, wherein the functionalized two-dimensional nanomaterial is a hydroxylated graphite oxide graphene or monohydroxylated hexagonal boron nitride, and the weight percentage concentration of the hydroxylated graphene oxide is 1% to 9%, or the weight percentage concentration of the hydroxylated hexagonal boron nitride is 1% to 9%. The fire-proof material as described in claim 1, wherein the heat-resistant temperature of the fire-proof material obtained by differential scanning calorimetry is above 120°C. A fireproof composite material, including the fireproof material described in claim 1 or 2 and a base material. A method for manufacturing a fireproof material as described in claim 1, including: functionalizing a two-dimensional nanomaterial to form a functionalized two-dimensional nanomaterial; and combining the functionalized two-dimensional nanomaterial with a water glass and gypsum are uniformly mixed, wherein the step of functionalizing the two-dimensional nanomaterial to form the functionalized two-dimensional nanomaterial is to modify graphene oxide with neopentyl erythritol to obtain monohydroxylated oxidation. Graphene; or wherein the step of functionalizing the two-dimensional nanomaterial to form the functionalized two-dimensional nanomaterial is to obtain a hydroxylated hexagonal boron nitride by ball milling a hexagonal boron nitride in water.