CN115651441A - Preparation method and application of transparent waterproof intumescent flame-retardant coating - Google Patents
Preparation method and application of transparent waterproof intumescent flame-retardant coating Download PDFInfo
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- CN115651441A CN115651441A CN202211273952.1A CN202211273952A CN115651441A CN 115651441 A CN115651441 A CN 115651441A CN 202211273952 A CN202211273952 A CN 202211273952A CN 115651441 A CN115651441 A CN 115651441A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 96
- 239000003063 flame retardant Substances 0.000 title claims abstract description 78
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
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- 238000002156 mixing Methods 0.000 claims abstract description 23
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- 239000010410 layer Substances 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 229920003180 amino resin Polymers 0.000 claims description 13
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 12
- 235000002949 phytic acid Nutrition 0.000 claims description 12
- 229920005862 polyol Polymers 0.000 claims description 12
- 150000003077 polyols Chemical class 0.000 claims description 12
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 11
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims description 10
- 239000000467 phytic acid Substances 0.000 claims description 10
- 229940068041 phytic acid Drugs 0.000 claims description 10
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 9
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical class CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 8
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 8
- 239000004327 boric acid Substances 0.000 claims description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 150000007974 melamines Chemical class 0.000 claims description 5
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- 238000002834 transmittance Methods 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
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- 150000003672 ureas Chemical class 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- DOKVLJLABBCKOJ-UHFFFAOYSA-N 6-hydrazinyl-1,3,5-triazine-2,4-diamine Chemical compound NNC1=NC(N)=NC(N)=N1 DOKVLJLABBCKOJ-UHFFFAOYSA-N 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
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- 238000003756 stirring Methods 0.000 description 9
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- 229940113115 polyethylene glycol 200 Drugs 0.000 description 7
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
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- 239000002932 luster Substances 0.000 description 1
- NVTPMUHPCAUGCB-UHFFFAOYSA-N pentyl dihydrogen phosphate Chemical compound CCCCCOP(O)(O)=O NVTPMUHPCAUGCB-UHFFFAOYSA-N 0.000 description 1
- XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to the technical field of intumescent flame retardance, and particularly discloses a preparation method of an intumescent transparent waterproof flame retardant coating, wherein the main raw material of the coating consists of a component A serving as a film forming agent, a component B serving as a flame retardant and a component C serving as a synergistic flame retardant; the component B is prepared by reacting a phosphoric acid compound with polyhydric alcohol at the temperature of 80-150 ℃ for 3-8 h, wherein the molar ratio of the phosphoric acid compound to the polyhydric alcohol is 1; and mixing the component A, the component B and the component C with a solvent to obtain the intumescent transparent waterproof flame-retardant coating. The invention also discloses the application of the intumescent transparent waterproof flame-retardant coating: coating the expansion type transparent waterproof flame-retardant coating on a base material, and then curing at low temperature to form a coating layer; has high-efficiency heat insulation and flame retardant effects on the base material.
Description
Technical Field
The invention relates to the technical field of expansion flame retardance, in particular to a preparation method and application of a transparent waterproof expansion type flame retardant coating.
Background
With the development of society, most buildings and daily necessities are made of inflammable wood, organic high polymer materials and the like, so that fire disasters are easily caused; in addition, because the thermal stability of the steel structure is not as good as that of reinforced concrete, the stability losing critical temperature is only 540 ℃, so that the steel structure is easy to deform and distort in a fire (the temperature is 800-1200 ℃), the steel structure is a main cause of the bombing and collapsing of a building, and casualties and property loss are easy to cause. For polymer composite materials and materials such as wood, steel structures and the like which can not be subjected to internal modification, a general method for improving the flame retardant property is to coat a layer of flame retardant coating, and the intumescent flame retardant coating is widely applied due to lasting heat resistance and high flame retardant efficiency.
The intumescent flame retardant coating generally comprises a film forming agent, a flame retardant and a synergistic flame retardant, wherein a carbon layer can expand in the combustion process and needs to contain an acid source, a carbon source and a gas source, namely in the combustion process, the acid source can catalyze the carbon source to form a compact carbon layer, the gas source serves as a foaming agent to foam the carbon layer, and the carbon layer forms a heat-insulating intumescent carbon layer with a foam structure which is dozens of times or even hundreds of times of that of the carbon layer. For example, patent CN104194504a discloses a nano fire-retardant coating, its preparation method and application, the nano fire-retardant coating is prepared by physically blending nano silica, vinyl acetate copolymer, melamine phosphate, talc powder and the like, and the nano silica exists in the fire-retardant coating in a physical form for flame retardation, and has high flame retardancy. Based on the fact that most of coatings at present are added with flame retardants of inorganic fillers, the transparency of the coatings is low, but for some wood buildings or letter paper and the like, the flame retardant coatings are not only required to be endowed with high flame retardancy, but also the surface appearance of the flame retardant coatings is required to be kept clear and visible, in other words, the flame retardant coatings are required to have higher transparency, and a patent (CN 104046201A) discloses a flexible intumescent transparent fireproof coating which is prepared from polyphosphate (containing polyethylene glycol) of a component A and amino resin of a component B, the coating is good in flexibility and can be cured at room temperature, and the expansion ratio of the coating after combustion is 53. The patent (CN 105802436A) discloses a transparent flame-retardant coating containing a nano material, wherein the nano material is successfully applied to the coating in a reaction type manner by grafting the nano material to phosphate, so that the influence of the nano material on the transparency of the coating is reduced. The patent (CN 108912939A) discloses a transparent intumescent water-based flame retardant coating which is prepared from phosphate, melamine resin and glass beads. However, the water resistance of the coating has a great influence on the transparency, the coating also has high water resistance, and the transparent coating is generally ultra-thin, so that the strength of a carbon layer in the combustion process is low, the expansion ratio cannot be comparable to that of a non-transparent coating, and the heat-insulating property is poor. Therefore, the development of an efficient intumescent flame retardant transparent water-resistant coating is necessary.
Disclosure of Invention
The invention aims to solve the technical problem of providing a preparation method and application of an intumescent transparent waterproof flame-retardant coating.
In order to solve the technical problems, the invention provides a preparation method of an intumescent transparent waterproof flame retardant coating, wherein the main raw material of the coating consists of a component A serving as a film forming agent, a component B serving as a flame retardant and a component C serving as a synergistic flame retardant;
the component A comprises: the component B =10 by mass (preferably 0.65-1.7);
the component A is amino resin or modified amino resin;
the component B is prepared by reacting a phosphoric acid compound with polyhydric alcohol at the temperature of 80-150 ℃ for 3-8 h, wherein the molar ratio of the phosphoric acid compound to the polyhydric alcohol is 1;
mixing the component A, the component B and the component C with a solvent to obtain the intumescent transparent waterproof flame-retardant coating;
the solvent accounts for 10-70% (preferably 30-55%) of the weight of the intumescent transparent waterproof flame-retardant coating.
Namely, the solvent: (solvent + component a + component B + component C) =10% to 70% (preferably 30% to 55%).
The improvement of the preparation method of the intumescent transparent waterproof flame-retardant coating of the invention comprises the following steps:
the component A is at least one (namely, one or more) of amino resin or modified amino resin;
the amino resin includes, but is not limited to, urea resin, melamine resin;
the modified amino resin is melamine modified urea resin, starch modified urea resin, polyethylene glycol modified urea resin, methylol melamine resin, methylated melamine resin, butylated melamine resin, amino melamine resin or mixed ether melamine resin.
The preparation method of the intumescent transparent waterproof flame-retardant coating is further improved as follows:
the phosphoric acid compound in the component B is at least one of the following compounds: phytic acid, phosphoric acid, polyphosphoric acid, phytates, phosphates and derivatives thereof;
the polyol in the B component is at least any one of the following: (poly) glycol with molecular weight of 62-1000, isobutanol, n-butanol, pentaerythritol and glycerol.
The preparation method of the intumescent transparent waterproof flame-retardant coating is further improved as follows:
the component C is at least any one of the following components: boric acid, boric acid derivatives, gamma-aminopropyltriethoxysilane derivatives.
The preparation method of the intumescent transparent waterproof flame-retardant coating is further improved as follows:
the first method is as follows: and C component reacts with B component and then is blended with A component:
mixing the component C and the component B, reacting for 5-24 hours at the reaction temperature of 10-150 ℃, and then uniformly blending with the component A and the solvent at the temperature of 10-70 ℃ to obtain the expansion type transparent waterproof flame-retardant coating (which is a liquid coating);
and in the second mode, the component A, the component B and the component C are directly blended:
directly and uniformly blending the component A, the component B and the component C with a solvent to obtain the intumescent transparent waterproof flame-retardant coating (liquid coating).
The preparation method of the intumescent transparent waterproof flame-retardant coating is further improved as follows:
the solvent is at least any one of the following: water, ethanol, n-butanol and isobutanol.
The invention also provides the intumescent transparent waterproof flame-retardant coating prepared by the method, the light transmittance of the coating is as high as more than 85%, the coating has excellent water resistance, and a high-intumescent heat-insulating flame-retardant carbon layer can be formed.
The paint can be widely applied to various materials such as wood structures, steel structures, composite plastics and the like.
The invention also provides the application of the expansion type transparent waterproof flame-retardant coating prepared by the method, which comprises the following steps: the expansion type transparent waterproof flame-retardant coating is coated on a plate (comprising a steel plate, a wood plate, quartz glass and the like), and then is cured at low temperature to form a coating layer.
The intumescent transparent waterproof flame-retardant coating has the following technical advantages:
(1) The preparation is simple, the color and luster of the raw material can be kept after coating, the texture is visible, and the light transmittance is up to more than 85 percent; therefore, the transparency is high;
(2) Has excellent water resistance;
(3) Forming a high-expansion heat-insulating flame-retardant carbon layer: the coating has less smoke production in the combustion process, can form a compact high-expansion carbon layer, and has efficient heat insulation and flame retardant effects on a base material (plate);
(4) The paint can be widely applied to various materials such as wood structures, steel structures, composite plastics and the like.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a photograph of an intumescent carbon layer after a large panel is burned, wherein the flame retardant coating prepared in example 1 is coated on a steel plate.
In fig. 1, the left drawing is a front view of the expanded charcoal layer after combustion, and the right drawing is a side view of the expanded charcoal layer after combustion.
FIG. 2 is a photograph of the flame retardant coating prepared in example 1 applied to a wood board after it is dried.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of protection of the invention is not limited thereto:
the normal temperature is 20-30 ℃.
1. The preparation example of the intumescent transparent waterproof flame-retardant coating of the invention is as follows:
example 1
The component A is 35.0g of methylated melamine resin; the component B is prepared by the following method: 10.0g of phytic acid, 5g of phosphoric acid and 13.6g of pentaerythritol were added to a three-necked flask equipped with mechanical stirring (i.e., the molar ratio of phosphoric acid compound to polyol was 3:5); reacting for 8 hours at 120 ℃ to prepare a component B; the C component was 1.0g of boric acid.
And stirring the component C and the component B at 120 ℃ for reaction for 10 hours, cooling the reaction to normal temperature, adding the component A and 33.0g of isobutanol (serving as a solvent), and uniformly mixing to obtain the intumescent transparent waterproof flame-retardant coating (which is a liquid coating).
Example 2:
the component A is 40.0g of melamine resin; the component B is prepared by the following method: adding 10.0g phytic acid, 5g phosphoric acid and 13.6g pentaerythritol to a three-necked flask equipped with mechanical stirring (i.e., a molar ratio of phosphate compound to polyol of 3:5); reacting for 8 hours at 100 ℃ to prepare a component B; the C component was 1.0g of boric acid.
And stirring the component C and the component B at 120 ℃ for 8 hours for reaction, cooling the reaction to normal temperature, adding the component A and 48.0g of isobutanol, and uniformly mixing to obtain the intumescent transparent waterproof flame-retardant coating (liquid coating).
Example 3:
the component A is 40.0g of melamine resin; the component B is prepared by the following method: adding 10.0g of phosphoric acid and 13.6g of pentaerythritol into a three-neck flask with mechanical stirring (namely the molar ratio of the phosphoric acid compound to the polyol is 1:1), and reacting for 5 hours at 80 ℃ to prepare a component B; the C component was 1.5g of boric acid.
And (3) stirring the component C and the component B at 120 ℃ for reaction for 10 hours, cooling the reaction to normal temperature, adding the component A and adding 30.0g of n-butyl alcohol, and uniformly mixing to obtain the intumescent transparent waterproof flame-retardant coating (liquid coating).
Example 4:
the component A was 45.0g of melamine resin; the component B is prepared by the following method: adding 5.0g of phosphoric acid, 10.0g of phytic acid and 20.0g of polyethylene glycol 200 into a three-neck flask with mechanical stirring (namely the molar ratio of the phosphoric acid compound to the polyol is 3:5), and reacting for 7h at 110 ℃ to prepare a component B; the C component was 2.0g of boric acid.
And (3) stirring the component C and the component B at 120 ℃ for reaction for 10 hours, cooling the reaction to normal temperature, adding the component A and 40.0g of n-butyl alcohol, and uniformly mixing to obtain the intumescent transparent waterproof flame-retardant coating (liquid coating).
Example 5:
the component A is 45.0g of melamine resin; the component B is prepared by the following method: adding 15.0g of phosphoric acid, 10g of phytic acid and 40.0g of polyethylene glycol 200 into a three-neck flask with mechanical stirring (namely, the molar ratio of the phosphoric acid compound to the polyol is 4:5), and reacting for 5 hours at 100 ℃ to prepare a component B; component C was 2.0g of gamma-aminopropyltriethoxysilane.
And (3) stirring the component C and the component B for reaction for 10 hours at 120 ℃, cooling the reaction to normal temperature, adding the component A and 51.0g of mixed solution of n-butanol and ethanol (31.0 g of n-butanol and 20.0g of ethanol) and uniformly mixing to obtain the intumescent transparent waterproof flame-retardant coating (liquid coating).
Example 6:
the component A was 45.0g of melamine resin; the component B is prepared by the following method: 15.5g of phosphoric acid, 10.0g of pentaerythritol and 20.0g of polyethylene glycol 200 are added into a three-neck flask with mechanical stirring (namely, the molar ratio of the phosphoric acid compound to the polyhydric alcohol is 9; component C was 1.0g of gamma-aminopropyltriethoxysilane.
And (3) stirring the component C and the component B for reaction for 5 hours at the temperature of 80 ℃, adding the component A and 58.0g of isobutanol and ethanol mixed solution (20.0 g of isobutanol and 38.0g of ethanol) after the reaction is cooled to normal temperature, and uniformly mixing to obtain the intumescent transparent waterproof flame-retardant coating (which is a liquid coating).
Example 7:
the component A is 40.0g of melamine resin; the component B is prepared by the following method: 15.5g of phosphoric acid, 10.0g of pentaerythritol and 20.0g of polyethylene glycol 200 are added into a three-neck flask with mechanical stirring (namely, the molar ratio of the phosphoric acid compound to the polyol is 9; the component C was 2.0g of gamma-aminopropyltriethoxysilane.
And (3) stirring the component C and the component B for reaction for 10 hours at 80 ℃, cooling the reaction to normal temperature, adding the component A and 82.0g of ethanol, and uniformly mixing to obtain the intumescent transparent waterproof flame-retardant coating (liquid coating).
Example 8:
the component A is 40.0g of melamine resin; the component B is prepared by the following method: 18.0g of phosphoric acid, 8.0g of phytic acid, 10.0g of pentaerythritol and 20.0g of polyethylene glycol 200 are added into a three-neck flask with mechanical stirring (namely, the molar ratio of the phosphoric acid compound to the polyol is 1:1), and the mixture is reacted for 4 hours at 150 ℃ to prepare a component B; component C was 1.0g of gamma-aminopropyltriethoxysilane.
And (3) stirring the component C and the component B at 120 ℃ for reaction for 10 hours, cooling the reaction to normal temperature, adding the component A and adding 50.0g of n-butyl alcohol, and uniformly mixing to obtain the intumescent transparent waterproof flame-retardant coating (liquid coating).
Example 9:
the component A is 40.0g of melamine resin; the component B is prepared by the following method: 18.0g of phosphoric acid, 8.0g of phytic acid, 10.0g of pentaerythritol and 20.0g of polyethylene glycol 200 are added into a three-neck flask with mechanical stirring (namely, the molar ratio of the phosphoric acid compound to the polyol is 1:1), and the mixture is reacted for 4 hours at 150 ℃ to prepare a component B; component C was 1.0g of gamma-aminopropyltriethoxysilane.
And uniformly blending the component A, the component B and the component C at normal temperature, and then adding 50.0g of n-butyl alcohol for uniform mixing to obtain the intumescent transparent waterproof flame-retardant coating (liquid coating).
Comparative example 1:
the component A is 40.0g of melamine resin; the component B is prepared by the following method: adding 10.0g of phosphoric acid and 13.6g of pentaerythritol into a three-neck flask with mechanical stirring (namely, the molar ratio of the phosphoric acid compound to the polyol is 1:1), and reacting for 8 hours at 80 ℃ to prepare a component B; uniformly mixing the component B, the component A and 32.0g of n-butanol at normal temperature; and (5) obtaining the coating.
Comparative example 2:
the component A is 40.0g of melamine resin; the component B is prepared by the following method: adding 20.0g of phytic acid and 13.6g of pentaerythritol into a three-neck flask with mechanical stirring (namely, the molar ratio of the phosphoric acid compound to the polyol is 1:5), and reacting for 8 hours at 100 ℃ to prepare a component B; uniformly mixing the component B, the component A and 38.0g of n-butanol at normal temperature; and (5) obtaining the coating.
Comparative example 3:
the component A is 40.0g of melamine resin, the component B is 35.0g of acid amyl phosphate, the component C is 2.0g of gamma-aminopropyltriethoxysilane, and the component A, the component B and the component C are uniformly mixed with 40.0g of n-butanol at normal temperature; and (5) obtaining the coating.
Comparative example 4: compared with the example 4, the prior preparation of the component B is eliminated, namely specifically:
the component A is 45.0g of melamine formaldehyde resin; the component B consists of 5.0g of phosphoric acid, 10.0g of phytic acid and 20.0g of polyethylene glycol 200; the C component was 2.0g of boric acid.
And (3) stirring the component C and the component B at 120 ℃ for reaction for 10 hours, cooling the reaction to normal temperature, adding the component A and 40.0g of n-butyl alcohol, and uniformly mixing to obtain the coating.
(II) testing the performance of the coating:
1. flame retardant experiments:
the coatings obtained in examples 1 to 9 and comparative examples 1 to 4 were applied to steel plates and cured at a low temperature (25 ℃ C. For 24 hours) to give a coating thickness of 0.4. + -. 0.02mm. The test was performed as follows:
water resistance was tested according to GB 1733-1993, and the light transmittance of the coating was measured using a light transmission meter. The large panel combustion method is tested according to GB 12441-2018. Decomposition temperature was analyzed using thermogravimetric testing. The expansion ratio of the carbon layer is calculated by adopting the ratio of the expansion height of the carbon layer to the thickness of the coating. The method is simple and feasible, and can be used for comparing the basic performances of the flame-retardant coatings prepared by different schemes.
The results obtained are shown in Table 1 below.
2. Transparency test:
the coatings obtained in examples 1 to 9 and comparative examples 1 to 4 were applied to quartz glass respectively so that the thickness of the coating after curing was 0.2. + -. 0.02mm. The experimental mode is as follows: and (3) carrying out transmittance test by adopting an ultraviolet visible near-infrared spectrophotometer, wherein the wavelength range is 200-1200nm. The final value of the coating is the average of five determinations.
The results obtained are shown in Table 1 below.
TABLE 1
Finally, it is also noted that the above-mentioned lists merely illustrate a few specific embodiments of the invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (9)
1. A preparation method of an intumescent transparent waterproof flame retardant coating is characterized by comprising the following steps: the coating main raw material consists of three parts, namely a component A serving as a film-forming agent, a component B serving as a flame retardant and a component C serving as a synergistic flame retardant;
the component A comprises: the component B =10 by mass ratio of 1-1;
the component A is amino resin or modified amino resin,
the component B is prepared by reacting a phosphoric acid compound with polyhydric alcohol at the temperature of 80-150 ℃ for 3-8 h, wherein the molar ratio of the phosphoric acid compound to the polyhydric alcohol is 1;
mixing the component A, the component B and the component C with a solvent to obtain the intumescent transparent waterproof flame-retardant coating;
the solvent accounts for 10-70% of the weight of the intumescent transparent waterproof flame-retardant coating.
2. The process of preparation of the intumescent transparent water-resistant flame retardant coating of claim 1, characterized in that:
the component A is at least one of amino resin or modified amino resin;
the amino resin includes, but is not limited to, urea resin, melamine resin;
the modified amino resin is melamine modified urea resin, starch modified urea resin, polyethylene glycol modified urea resin, methylol melamine resin, methylated melamine resin, butylated melamine resin, amino melamine resin or mixed ether melamine resin.
3. The process for the preparation of the intumescent, transparent, water-resistant, flame-retardant coating of claim 2, characterized in that:
the phosphoric acid compound in the component B is at least one of the following compounds: phytic acid, phosphoric acid, polyphosphoric acid, phytates, phosphates and derivatives thereof;
the polyol in the B component is at least any one of the following: (poly) ethylene glycol with molecular weight of 62-1000, isobutanol, n-butanol, pentaerythritol and glycerol.
4. The process for the preparation of the intumescent, transparent, water-resistant, flame-retardant coating of claim 3, characterized in that:
the component C is at least any one of the following components: boric acid, boric acid derivatives, gamma-aminopropyltriethoxysilane derivatives.
5. The process for preparing an intumescent transparent water-resistant flame retardant coating according to any of claims 1 to 4, characterized in that:
the method I comprises the following steps: and C component reacts with B component and then is blended with A component:
mixing the component C and the component B, reacting for 5-24 hours at the reaction temperature of 10-150 ℃, and then uniformly blending with the component A and the solvent at the temperature of 10-70 ℃ to obtain the intumescent transparent waterproof flame-retardant coating;
and in the second mode, the component A, the component B and the component C are directly blended:
directly and uniformly blending the component A, the component B and the component C with a solvent to obtain the intumescent transparent waterproof flame-retardant coating.
6. The process for the preparation of the intumescent, transparent, water-resistant, and flame-retardant coating of claim 5, wherein:
the solvent is at least any one of the following: water, ethanol, n-butanol and isobutanol.
7. An intumescent, transparent, water-resistant, flame-retardant coating prepared by the process of any of claims 1 to 6.
8. The intumescent, transparent, water-resistant, flame-retardant coating of claim 7, characterized in that: the coating has light transmittance of over 85 percent, excellent water resistance and can form a high-expansion heat-insulating flame-retardant carbon layer.
9. Use of an intumescent, transparent, water-resistant, flame-retardant coating prepared by the process of any of claims 1 to 6, characterized in that:
the expansion type transparent waterproof flame-retardant coating is coated on a plate and then cured at low temperature to form a coating layer.
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| CN104046201A (en) * | 2014-03-28 | 2014-09-17 | 上海大学 | Flexible expandable transparent fireproof paint and preparation method thereof |
| CN105860742A (en) * | 2016-05-18 | 2016-08-17 | 湖南浩盛消防科技有限公司 | Low-smoke expansive type transparent fire-retardant coating and preparation method thereof |
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| CN104046201A (en) * | 2014-03-28 | 2014-09-17 | 上海大学 | Flexible expandable transparent fireproof paint and preparation method thereof |
| CN105860742A (en) * | 2016-05-18 | 2016-08-17 | 湖南浩盛消防科技有限公司 | Low-smoke expansive type transparent fire-retardant coating and preparation method thereof |
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