CN114163917A - Environment-friendly flame-retardant material for plates and preparation method thereof - Google Patents
Environment-friendly flame-retardant material for plates and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
- C09D5/185—Intumescent paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention discloses an environment-friendly flame-retardant material for a plate and a preparation method thereof, belonging to the technical field of flame-retardant materials. The environment-friendly flame-retardant material for the plate comprises the following components: polyurethane acrylic resin, epoxy acrylic resin, guanyl urea phosphate, pentaerythritol phosphate, melamine urea resin, ethylene glycol, a drying agent, a defoaming agent, a dispersing agent, a filler, a thickening agent and water; the dosage ratio of the guanylurea phosphate, the pentaerythritol phosphate and the melamine urea resin is (1.5-2): (0.8-1.5): (2-3). According to the flame-retardant material, guanylurea phosphate, pentaerythritol phosphate and melamine urea-formaldehyde resin are added, so that the flame-retardant effect of the flame-retardant material is synergistically improved, wherein the melamine formaldehyde resin and the guanylurea phosphate are cooperated with each other to provide non-combustible gas for a carbonized layer; guanylurea phosphate and pentaerythritol phosphate are used as acid sources, so that a good protection effect is formed on a base material, and the purpose of improving the flame retardant effect of the flame retardant material is achieved.
Description
Technical Field
The invention belongs to the technical field of flame retardant materials, and particularly relates to an environment-friendly flame retardant material for a plate and a preparation method thereof.
Background
The fire retardant coating is also called a flame retardant coating, and is itself a non-combustible or flame retardant material, and can be simply classified into a steel structure fire retardant coating, a finishing type fire retardant coating, a tunnel type fire retardant coating, a cable type fire retardant coating, and the like. The finishing type fireproof coating is a functional coating integrating decoration and fire retardant protection, can play a role in fireproof protection on the basis of not changing the original appearance of a building, has good flexibility and adhesiveness, and can be used for a long time without falling off and cracking. At present, the fire-retardant coatings widely used in the market have many problems, such as NH release of the fire-retardant coating when exposed to fire3、NOXAnd toxic gases such as CO and the like, the durability of the fireproof coating is poor, and the condition of fish-eye mixing is easy to occur in the production and the use of the fireproof coating due to the standard lag of the fireproof coating.
The improvement and promotion of the flame retardant, physicochemical and environmental protection performances of the fireproof coating are important subjects of continuous research required by scholars in the field, most of the fireproof coatings widely used in the market at present are P-C-N intumescent flame retardant system fireproof coatings, and the main research focus is on the research of the thermal stability, the flame retardancy, the coordination between other components, the coordination between the intumescent flame retardant system and organic flame retardants such as aluminum hydroxide and the like.
Chinese patent document "a quick-drying flame-retardant waterproof coating and a preparation method thereof (patent number: ZL 201710448031.7)" discloses a flame-retardant waterproof coating: the composition is prepared from a component A and a component B, wherein the component A comprises the following components in percentage by weight based on the total weight of the component A: 110-150 parts of chlorinated paraffin and 30-60 parts of drying agent; based on the total weight of component B, the component B comprises: 1300 parts of vinyl acetate-ethylene copolymer emulsion 1100-20 parts of defoaming agent, 15-20 parts of dispersing agent, 20-30 parts of propylene glycol, 1000 parts of filler-1400 parts of flame retardant, 45-55 parts of thickening agent and 110 parts of water-130; and the mass ratio of the component A to the component B is 1: 4-6; the drying agent is anhydrous magnesium sulfate. The surface drying time of the coating film is less than 1 hour, the actual drying time is less than 4 hours, the construction interval time of the water-based coating can be reduced from 8 hours to 4 hours, and the construction efficiency is doubled; in addition, the waterproof coating has flame retardant property, makes up the vacancy that the polymer emulsion building waterproof coating cannot resist flame, can effectively reduce the probability of fire, but still has the problem that the flame retardant effect needs to be improved.
Disclosure of Invention
The invention aims to provide an environment-friendly flame-retardant material for plates and a preparation method thereof, and aims to solve the problem of how to optimize components, dosage, process and the like and improve the flame-retardant effect of the flame-retardant material on the basis of the disclosure of a quick-drying flame-retardant waterproof coating and a preparation method thereof (patent number: ZL 201710448031.7).
In order to solve the technical problems, the invention adopts the following technical scheme:
an environment-friendly flame-retardant material for a plate, which comprises the following components: polyurethane acrylic resin, epoxy acrylic resin, guanyl urea phosphate, pentaerythritol phosphate, melamine urea resin, ethylene glycol, a drying agent, a defoaming agent, a dispersing agent, a filler, a thickening agent and water; the dosage ratio of the guanylurea phosphate, the pentaerythritol phosphate and the melamine urea resin is (1.5-2): (0.8-1.5): (2-3).
Preferably, the dosage ratio of the guanylurea phosphate, the pentaerythritol phosphate and the melamine urea resin is 1.8: 1.2: 2.5.
preferably, the flame retardant material comprises the following components in parts by weight: 90-110 parts of polyurethane acrylic resin, 50-80 parts of epoxy acrylic resin, 15-20 parts of guanylurea phosphate, 8-15 parts of pentaerythritol phosphate, 20-30 parts of melamine urea-formaldehyde resin, 30-40 parts of ethylene glycol, 20-30 parts of a drying agent, 20-25 parts of a defoaming agent, 10-20 parts of a dispersing agent, 1000 parts of a filler and 1500 parts of a thickening agent, and 100 parts of water and 120 parts of water.
Preferably, the flame retardant material comprises the following components in parts by weight: 100 parts of polyurethane acrylic resin, 70 parts of epoxy acrylic resin, 18 parts of guanyl urea phosphate, 12 parts of pentaerythritol phosphate, 25 parts of melamine urea resin, 35 parts of ethylene glycol, 25 parts of drying agent, 22 parts of defoaming agent, 15 parts of dispersing agent, 1300 parts of filler, 18 parts of thickening agent and 110 parts of water.
Preferably, the desiccant is anhydrous calcium chloride or anhydrous calcium sulfate.
Preferably, the defoaming agent is selected from one of a silicone defoaming agent, a mineral oil defoaming agent, a higher alcohol defoaming agent or a polyether defoaming agent.
Preferably, the dispersant is an alkali metal phosphate or polycarboxylate.
Preferably, the filler is ground calcium carbonate or barium sulfate.
Preferably, the thickener is an alkali swelling thickener.
The invention also provides a preparation method of the environment-friendly flame-retardant material for the plate, which comprises the following steps:
(1) adding polyurethane acrylic resin, epoxy acrylic resin, guanylurea phosphate, pentaerythritol phosphate and melamine urea-formaldehyde resin into water, and stirring for 30-40min at the microwave power of 100-;
(2) adding ethylene glycol into the mixed material a prepared in the step (1), and stirring at the rotating speed of 200-300r/min for 10-15min to prepare a mixed material b;
(3) adding a drying agent, a defoaming agent, a dispersing agent and a filler into the mixed material b prepared in the step (2), and stirring at the rotating speed of 300-400r/min for 8-12min to prepare a mixed material c;
(4) adding a thickening agent into the mixed material c prepared in the step (3), and stirring at the rotating speed of 200-300r/min for 6-10min to prepare the environment-friendly flame-retardant material.
The invention has the following beneficial effects:
(1) the guanyl urea phosphate, the pentaerythritol phosphate and the melamine urea-formaldehyde resin added in the preparation process of the flame retardant material have a synergistic effect, and the resistance is synergistically improvedFlame retardant properties of the fuel material because: the pentaerythritol phosphate ester has high flame retardant efficiency; guanyl urea phosphate is a water-soluble phosphorus-nitrogen composite flame retardant, has obvious smoke suppression effect, and has the functions of gas phase dilution, solid phase barrier, catalytic carbonization and the like; melamine urea resin is a film forming substance, pentaerythritol phosphate and amidine phosphate are acid source and carbon source; the melamine resin and the guanylurea phosphate are both gas sources; guanyl urea phosphate, pentaerythritol phosphate and melamine urea formaldehyde resin form a flame retardant system. Small molecule gas such as CO generated by thermal decomposition of guanylurea phosphate in combustion process2And the non-combustible gas can effectively dilute the concentration of oxygen around the base material, so that the concentration of oxygen in the combustion atmosphere is relatively insufficient, and a certain gas-phase flame-retardant effect is achieved. Meanwhile, guanylurea phosphate and pentaerythritol phosphate release inorganic acid together to perform esterification reaction with carbon source pentaerythritol phosphate, and then the inorganic acid is dehydrated and carbonized into sticky carbonized substances. The carbide forms an expansion barrier carbon layer under the action of inert gases released by heating melamine urea formaldehyde resin and guanyl urea phosphate. The expanded blocking carbon layer can effectively prevent flame from spreading, so that the base material is prevented from further degradation and combustion, and a good flame-retardant effect is obtained.
The melamine resin and the guanylurea phosphate serving as gas sources cooperate with each other in different temperature intervals to continuously provide non-combustible gas for the carbonization layer, so that the concentration of the combustible gas can be effectively diluted, and a certain flame-retardant effect is achieved; the guanylurea phosphate and the pentaerythritol phosphate are simultaneously used as acid sources, the catalytic action is high-efficiency, the breakage of chemical bonds of the pentaerythritol phosphate and the dehydration and carbonization are promoted, the carbon layer is promoted to be formed on the surface of a protected organism and rapidly expand under the action of gas, and a good protective action is formed on a base material. The three components cooperate with each other in the combustion process to show good flame retardant effect.
(2) In the patent document cited in the background technology, "a quick-drying flame-retardant waterproof coating and a preparation method thereof (patent number: ZL 201710448031.7)", although the surface drying time of the coating film is less than 1 hour, and the actual drying time is less than 4 hours, the construction interval time of the water-based coating can be reduced from the original 8 hours to 4 hours, and the construction efficiency is doubled; in addition, the waterproof coating has flame retardant property, makes up the vacancy that the polymer emulsion building waterproof coating cannot resist flame, can effectively reduce the occurrence probability of fire, but still has the problem that the flame retardant effect needs to be improved, and based on the technical problem to be solved, the invention further optimizes and improves the components and the dosage of the waterproof coating; the guanylurea phosphate and the pentaerythritol phosphate are simultaneously used as acid sources, the catalytic action is high-efficiency, the breakage of chemical bonds of the pentaerythritol phosphate and the dehydration and carbonization are promoted, the carbon layer is promoted to be formed on the surface of a protected organism and rapidly expand under the action of gas, and a good protection effect is formed on a base material, so that the purpose of improving the flame-retardant effect of the flame-retardant material is achieved, the technical problems in the background technical documents can be solved, and an unexpected effect is generated.
(3) The flame-retardant material disclosed by the invention is high in performance, and the combustion grade of the flame-retardant material after being coated on a floor meets the requirement of a B1-grade flame-retardant material of a floor paving material, so that the product can meet the popularization requirement.
Drawings
FIG. 1 is a graph showing charring after radiant flux tests of floor samples with different coating weights.
Detailed Description
For a better understanding of the present invention, the following examples are given to illustrate, but not to limit the scope of the present invention.
The environment-friendly flame-retardant material for the plate material, which is described in the following examples, comprises the following components in parts by weight: 90-110 parts of polyurethane acrylic resin, 50-80 parts of epoxy acrylic resin, 15-20 parts of guanylurea phosphate, 8-15 parts of pentaerythritol phosphate, 20-30 parts of melamine urea-formaldehyde resin, 30-40 parts of ethylene glycol, 20-30 parts of a drying agent, 20-25 parts of a defoaming agent, 10-20 parts of a dispersing agent, 1000 parts of a filler and 1500 parts of a thickening agent, and 100 parts of water and 120 parts of water.
The desiccant is anhydrous calcium chloride or anhydrous calcium sulfate.
The defoaming agent is selected from one of an organic silicon defoaming agent, a mineral oil defoaming agent, a higher alcohol defoaming agent or a polyether defoaming agent.
The dispersant is alkali metal phosphate or polycarboxylate.
The filler is heavy calcium carbonate or barium sulfate.
The thickening agent is an alkali swelling thickening agent.
The preparation method of the environment-friendly flame-retardant material for the plate comprises the following steps:
(1) adding polyurethane acrylic resin, epoxy acrylic resin, guanylurea phosphate, pentaerythritol phosphate and melamine urea-formaldehyde resin into water, and stirring for 30-40min at the microwave power of 100-;
(2) adding ethylene glycol into the mixed material a prepared in the step (1), and stirring at the rotating speed of 200-300r/min for 10-15min to prepare a mixed material b;
(3) adding a drying agent, a defoaming agent, a dispersing agent and a filler into the mixed material b prepared in the step (2), and stirring at the rotating speed of 300-400r/min for 8-12min to prepare a mixed material c;
(4) adding a thickening agent into the mixed material c prepared in the step (3), and stirring at the rotating speed of 200-300r/min for 6-10min to prepare the environment-friendly flame-retardant material.
The following is a more specific example.
Example 1
An environment-friendly flame-retardant material for a plate comprises the following components in parts by weight: 100 parts of polyurethane acrylic resin, 70 parts of epoxy acrylic resin, 18 parts of guanylurea phosphate, 12 parts of pentaerythritol phosphate, 25 parts of melamine urea resin, 35 parts of ethylene glycol, 25 parts of anhydrous calcium chloride, 22 parts of an organic silicon defoamer, 15 parts of an alkali metal phosphate dispersant, 1300 parts of heavy calcium carbonate, 18 parts of an alkali swelling thickener and 110 parts of water.
The preparation method of the environment-friendly flame-retardant material for the plate comprises the following steps:
(1) adding polyurethane acrylic resin, epoxy acrylic resin, guanyl urea phosphate, pentaerythritol phosphate and melamine urea-formaldehyde resin into water, and stirring for 36min at the microwave power of 150W, the temperature of 43 ℃ and the rotating speed of 300r/min to obtain a mixed material a;
(2) adding ethylene glycol into the mixed material a prepared in the step (1), and stirring for 10min at the rotating speed of 300r/min to prepare a mixed material b;
(3) adding a drying agent, a defoaming agent, a dispersing agent and a filler into the mixed material b prepared in the step (2), and stirring for 9min at the rotating speed of 400r/min to prepare a mixed material c;
(4) and (4) adding a thickening agent into the mixed material c prepared in the step (3), and stirring for 6min at the rotating speed of 300r/min to prepare the environment-friendly flame-retardant material.
Example 2
An environment-friendly flame-retardant material for a plate comprises the following components in parts by weight: 90 parts of polyurethane acrylic resin, 80 parts of epoxy acrylic resin, 17 parts of guanylurea phosphate, 10 parts of pentaerythritol phosphate, 26 parts of melamine urea resin, 30 parts of ethylene glycol, 30 parts of anhydrous calcium sulfate, 20 parts of a mineral oil defoamer, 20 parts of a polycarboxylate dispersant, 1000 parts of barium sulfate, 15 parts of an alkali swelling thickener and 150 parts of water.
The preparation method of the environment-friendly flame-retardant material for the plate comprises the following steps:
(1) adding polyurethane acrylic resin, epoxy acrylic resin, guanyl urea phosphate, pentaerythritol phosphate and melamine urea-formaldehyde resin into water, and stirring for 39min at the microwave power of 100W, the temperature of 42 ℃ and the rotating speed of 200r/min to obtain a mixed material a;
(2) adding ethylene glycol into the mixed material a prepared in the step (1), and stirring for 14min at the rotating speed of 200r/min to prepare a mixed material b;
(3) adding a drying agent, a defoaming agent, a dispersing agent and a filler into the mixed material b prepared in the step (2), and stirring for 12min at the rotating speed of 300r/min to prepare a mixed material c;
(4) and (4) adding a thickening agent into the mixed material c prepared in the step (3), and stirring at the rotating speed of 200r/min for 10min to prepare the environment-friendly flame-retardant material.
Example 3
An environment-friendly flame-retardant material for a plate comprises the following components in parts by weight: 105 parts of polyurethane acrylic resin, 50 parts of epoxy acrylic resin, 20 parts of guanylurea phosphate, 15 parts of pentaerythritol phosphate, 30 parts of melamine urea resin, 35 parts of ethylene glycol, 20 parts of anhydrous calcium chloride, 23 parts of a higher alcohol defoamer, 10 parts of an alkali metal phosphate dispersant, 1200 parts of barium sulfate, 18 parts of an alkali swelling thickener and 120 parts of water.
The preparation method of the environment-friendly flame-retardant material for the plate comprises the following steps:
(1) adding polyurethane acrylic resin, epoxy acrylic resin, guanyl urea phosphate, pentaerythritol phosphate and melamine urea-formaldehyde resin into water, and stirring for 30min at the microwave power of 180W, the temperature of 45 ℃ and the rotating speed of 400r/min to obtain a mixed material a;
(2) adding ethylene glycol into the mixed material a prepared in the step (1), and stirring for 12min at the rotating speed of 260r/min to prepare a mixed material b;
(3) adding a drying agent, a defoaming agent, a dispersing agent and a filler into the mixed material b prepared in the step (2), and stirring for 9min at the rotating speed of 380r/min to prepare a mixed material c;
(4) and (4) adding a thickening agent into the mixed material c prepared in the step (3), and stirring for 8min at the rotating speed of 250r/min to prepare the environment-friendly flame-retardant material.
Example 4
An environment-friendly flame-retardant material for a plate comprises the following components in parts by weight: 110 parts of polyurethane acrylic resin, 65 parts of epoxy acrylic resin, 15 parts of guanylurea phosphate, 8 parts of pentaerythritol phosphate, 20 parts of melamine urea resin, 40 parts of ethylene glycol, 25 parts of anhydrous calcium sulfate, 25 parts of polyether defoamer, 15 parts of polycarboxylate dispersant, 1500 parts of ground calcium carbonate, 20 parts of alkali swelling thickener and 100 parts of water.
The preparation method of the environment-friendly flame-retardant material for the plate comprises the following steps:
(1) adding polyurethane acrylic resin, epoxy acrylic resin, guanyl urea phosphate, pentaerythritol phosphate and melamine urea-formaldehyde resin into water, and stirring for 34min at the microwave power of 140W, the temperature of 43 ℃ and the rotating speed of 300r/min to obtain a mixed material a;
(2) adding ethylene glycol into the mixed material a prepared in the step (1), and stirring for 15min at the rotating speed of 200r/min to prepare a mixed material b;
(3) adding a drying agent, a defoaming agent, a dispersing agent and a filler into the mixed material b prepared in the step (2), and stirring for 8min at the rotating speed of 400r/min to prepare a mixed material c;
(4) and (4) adding a thickening agent into the mixed material c prepared in the step (3), and stirring for 6min at the rotating speed of 300r/min to prepare the environment-friendly flame-retardant material.
Comparative example 1
The preparation method is basically the same as that of example 1, except that guanylurea phosphate, pentaerythritol phosphate and melamine urea formaldehyde resin are not added in the method for preparing the environment-friendly flame retardant material for the plate.
Comparative example 2
The preparation method is basically the same as that of example 1, except that guanylurea phosphate is not added in the method for preparing the environment-friendly flame retardant material for the plate.
Comparative example 3
The preparation method is basically the same as that of example 1, except that pentaerythritol phosphate is not added in the method for preparing the environment-friendly flame retardant material for the plate.
Comparative example 4
The preparation method is basically the same as that of the example 1, except that the melamine urea formaldehyde resin is not added in the method for preparing the environment-friendly flame retardant material for the plate.
Comparative example 5
The flame-retardant material is prepared as described in example 1 of a Chinese patent document 'a quick-drying flame-retardant waterproof coating and a preparation method thereof (patent number: ZL 201710448031.7').
First, Total Heat Release test
The flame retardant materials obtained according to examples 1 to 4 and comparative examples 1 to 5 were subjected to a flame retardancy test, and the total heat release amount was the sum of the heat released during the combustion process per unit area of the test piece, and the results are shown in Table 1. TABLE 1 Total Heat Release amount of flame retardant materials of examples 1-4 and comparative examples 1-5
As can be seen from Table 1: (1) as can be seen from the data of examples 1-4 and comparative example 5, the total heat release of the flame retardant materials of examples 1-4 is significantly lower than that of comparative example 5, and example 1 is the most preferred example.
(2) As can be seen from the data of example 1 and comparative examples 1 to 4, the guanylurea phosphate, pentaerythritol phosphate and melamine urea-formaldehyde resin added in the preparation process of the flame retardant material have a synergistic effect, and the flame retardant property of the flame retardant material is synergistically improved because: the pentaerythritol phosphate ester has high flame retardant efficiency; guanyl urea phosphate is a water-soluble phosphorus-nitrogen composite flame retardant, has obvious smoke suppression effect, and has the functions of gas phase dilution, solid phase barrier, catalytic carbonization and the like; melamine urea resin is a film forming substance, pentaerythritol phosphate and amidine phosphate are acid source and carbon source; the melamine resin and the guanylurea phosphate are both gas sources; guanyl urea phosphate, pentaerythritol phosphate and melamine urea formaldehyde resin form a flame retardant system. Small molecule gas such as CO2 generated by thermal decomposition of guanylurea phosphate in the combustion process can effectively dilute the concentration of oxygen around the base material, so that the oxygen concentration in the combustion atmosphere is relatively insufficient, and a certain gas-phase flame retardant effect is achieved. Meanwhile, guanylurea phosphate and pentaerythritol phosphate release inorganic acid together to perform esterification reaction with carbon source pentaerythritol phosphate, and then the inorganic acid is dehydrated and carbonized into sticky carbonized substances. The carbide forms an expansion barrier carbon layer under the action of inert gases released by heating melamine urea formaldehyde resin and guanyl urea phosphate. The expanded blocking carbon layer can effectively prevent flame from spreading, so that the base material is prevented from further degradation and combustion, and a good flame-retardant effect is obtained.
The melamine resin and the guanylurea phosphate serving as gas sources cooperate with each other in different temperature intervals to continuously provide non-combustible gas for the carbonization layer, so that the concentration of the combustible gas can be effectively diluted, and a certain flame-retardant effect is achieved; the guanylurea phosphate and the pentaerythritol phosphate are simultaneously used as acid sources, the catalytic action is high-efficiency, the breakage of chemical bonds of the pentaerythritol phosphate and the dehydration and carbonization are promoted, the carbon layer is promoted to be formed on the surface of a protected organism and rapidly expand under the action of gas, and a good protective action is formed on a base material. The three components cooperate with each other in the combustion process to show good flame retardant effect.
Second, other Performance tests
1. Test method
A radiant heat source method: the flame retardant material prepared in example 1 was uniformly roll-coated on a solid wood composite floor substrate (sample size =250mmX89mmX15 mm) at coating weights of 50 g/m2, 75 g/m2 and 95 g/m 2. According to a radiant heat source method in GB/T11785-2005 flooring material combustion performance determination, critical radiation flux of the material is determined, and the flame retardant grade of the material is evaluated according to GB 8624-2012 building material and product combustion performance grading.
2. Test results
The critical radiation flux test is carried out on the flame-retardant floor with the coating weight of the flame-retardant base coat of 50 g/m2, 75 g/m2 and 95 g/m2, the relevant parameters and the carbonization condition of the floor are shown in the table 2 and the figure 1, and the total smoke gas value is shown in the table 3.
As can be seen from table 2 and fig. 1: the floor with three coating weights is naturally extinguished in the extinguishing mode in the combustion process. When the coating weight of the flame-retardant base coat is 50 g/m2The carbonization distance is 40 cm, and the critical radiation flux CHF is more than 4.5 kW/m2The flame retardant rating is B1C according to GB 8624-2When the carbonized distance of the floor surface is 21 cm, the critical radiation flux CHF is more than 8.0 kW/m2The corresponding flame retardant rating is B1B. It can be seen that the flame retardant rating of the floor increases with the coating weight. When the coating amount reaches 95 g/m2When the coating is used, the carbonization distance is further shortened, and the flame extinguishing time is 50 g/m compared with the coating weight2And 75 g/m2Respectively, 804 s and 385 s.
As can be seen from Table 3: the total smoke value of the three coating weights is 41.39-70.52%. min, and the grade is judged by referring to an additional grade judgment basis (see table 4).
Combining tables 3 and 4, it can be seen that: the total smoke values of the three coating weights are far less than the standard value of 750%. min, and the smoke is judged to be s1 grade.
In conclusion, the flame-retardant floor with three coating weights meets the requirement of the flooring material B1-grade flame-retardant material, and the flame-retardant material has high performance and can meet the popularization requirement.
The above description should not be taken as limiting the invention to the embodiments, but rather, as will be apparent to those skilled in the art to which the invention pertains, numerous simplifications or substitutions may be made without departing from the spirit of the invention, which shall be deemed to fall within the scope of the invention as defined by the claims appended hereto.
Claims (10)
1. The environment-friendly flame-retardant material for the plate is characterized by comprising the following components: polyurethane acrylic resin, epoxy acrylic resin, guanyl urea phosphate, pentaerythritol phosphate, melamine urea resin, ethylene glycol, a drying agent, a defoaming agent, a dispersing agent, a filler, a thickening agent and water; the dosage ratio of the guanylurea phosphate, the pentaerythritol phosphate and the melamine urea resin is (1.5-2): (0.8-1.5): (2-3).
2. The environment-friendly flame retardant material for the plate according to claim 1, wherein the dosage ratio of the guanylurea phosphate, the pentaerythritol phosphate and the melamine urea resin is 1.8: 1.2: 2.5.
3. the environment-friendly flame-retardant material for the plate according to claim 1, wherein the flame-retardant material comprises the following components in parts by weight: 90-110 parts of polyurethane acrylic resin, 50-80 parts of epoxy acrylic resin, 15-20 parts of guanylurea phosphate, 8-15 parts of pentaerythritol phosphate, 20-30 parts of melamine urea-formaldehyde resin, 30-40 parts of ethylene glycol, 20-30 parts of a drying agent, 20-25 parts of a defoaming agent, 10-20 parts of a dispersing agent, 1000 parts of a filler and 1500 parts of a thickening agent, and 100 parts of water and 120 parts of water.
4. The environment-friendly flame-retardant material for the plate according to claim 3, wherein the flame-retardant material comprises the following components in parts by weight: 100 parts of polyurethane acrylic resin, 70 parts of epoxy acrylic resin, 18 parts of guanyl urea phosphate, 12 parts of pentaerythritol phosphate, 25 parts of melamine urea resin, 35 parts of ethylene glycol, 25 parts of drying agent, 22 parts of defoaming agent, 15 parts of dispersing agent, 1300 parts of filler, 18 parts of thickening agent and 110 parts of water.
5. The environment-friendly flame retardant material for plates according to claim 1, 3 or 4, wherein the desiccant is anhydrous calcium chloride or anhydrous calcium sulfate.
6. The environment-friendly flame retardant material for plates according to claim 1, 3 or 4, wherein the defoaming agent is selected from one of a silicone defoaming agent, a mineral oil defoaming agent, a higher alcohol defoaming agent or a polyether defoaming agent.
7. The environment-friendly flame retardant material for plates according to claim 1, 3 or 4, wherein the dispersant is alkali metal phosphate or polycarboxylate.
8. The environment-friendly flame retardant material for plates as claimed in claim 1, 3 or 4, wherein the filler is ground calcium carbonate or barium sulfate.
9. The environment-friendly flame retardant material for plates according to claim 1, 3 or 4, wherein the thickener is an alkali swelling thickener.
10. A method for preparing the environment-friendly flame retardant material for the plate according to any one of claims 1 to 9, characterized by comprising the following steps:
(1) adding polyurethane acrylic resin, epoxy acrylic resin, guanylurea phosphate, pentaerythritol phosphate and melamine urea-formaldehyde resin into water, and stirring for 30-40min at the microwave power of 100-;
(2) adding ethylene glycol into the mixed material a prepared in the step (1), and stirring at the rotating speed of 200-300r/min for 10-15min to prepare a mixed material b;
(3) adding a drying agent, a defoaming agent, a dispersing agent and a filler into the mixed material b prepared in the step (2), and stirring at the rotating speed of 300-400r/min for 8-12min to prepare a mixed material c;
(4) adding a thickening agent into the mixed material c prepared in the step (3), and stirring at the rotating speed of 200-300r/min for 6-10min to prepare the environment-friendly flame-retardant material.
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