CN111393884A - Fireproof coating based on recycling of foam extinguishing agent - Google Patents
Fireproof coating based on recycling of foam extinguishing agent Download PDFInfo
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- CN111393884A CN111393884A CN202010403490.5A CN202010403490A CN111393884A CN 111393884 A CN111393884 A CN 111393884A CN 202010403490 A CN202010403490 A CN 202010403490A CN 111393884 A CN111393884 A CN 111393884A
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
- C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
-
- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- 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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
-
- 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
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Abstract
The invention discloses a fireproof coating based on foam extinguishing agent recycling, which is prepared by mixing the following components in percentage by mass: 60-70 parts of cementing material; 25-35 parts of aggregate; 3-6 parts of a chemical auxiliary agent; 0.3-3 parts of foaming agent; 130 portions of water and 180 portions of water; wherein the foaming agent is a waste foam extinguishing agent with the foaming rate of more than 5 times. Has the advantages that: the waste foam extinguishing agent is used as a mixed material of the fireproof coating, so that the waste of the foam extinguishing agent is reduced, and the environmental pollution caused by direct discharge of the foam extinguishing agent is eliminated; the waste foam extinguishing agent has good foaming performance, and is mixed with water for foaming and then mixed with raw materials of the protective coating, so that the mixed fireproof coating is light, the heat-insulating performance of the fireproof coating is improved, and the fireproof effect is improved; the waste foam extinguishing agent is used as a mixed material of the fireproof coating, does not generate harmful gas at high temperature, and is safe and environment-friendly.
Description
Technical Field
The invention relates to the technical field of foam extinguishing agent recycling, in particular to a fireproof coating based on foam extinguishing agent recycling.
Background
The foam extinguishing agent is one of the most common fire extinguishing materials, and has a certain service life, and after expiration, the performance index of the foam extinguishing agent cannot meet the normal requirement, so the foam extinguishing agent can only be buried or discharged after harmless treatment, a large amount of waste is caused, and the foam extinguishing agent contains partial components which are difficult to degrade, so the environment can generate long-term adverse effects after the foam extinguishing agent is discharged.
After the fireproof paint is coated on the surface of a target object, the fireproof capacity of the surface of the target object can be improved, the spread and the propagation speed of flame in a fire environment can be slowed down, or the burning can be stopped within a certain time. The action principle of the method is mainly divided into the following aspects: 1. the fireproof coating has flame retardancy or incombustibility, so that the protected substrate is not directly contacted with air, the ignition of an object is delayed, and the combustion speed is reduced; 2. the fireproof coating has low heat conductivity coefficient besides flame retardancy or incombustibility, and can delay the transmission of flame temperature to a protected substrate; 3. the fire-proof coating is heated to decompose non-combustible inert gas, and dilute combustible gas decomposed by the protected object when heated, so that the protected object is not easy to burn or the burning speed is reduced; 4. the nitrogenous fireproof coating is heated to decompose groups such as NO, NH3 and the like, and the groups are combined with organic free radicals, so that the chain reaction is interrupted, and the temperature is reduced; 5. the expansion type fireproof coating expands and foams by heating to form a carbonaceous foam heat insulation layer to seal a protected object, so that the transfer of heat and a base material is delayed, and the object is prevented from catching fire and burning or the strength is prevented from being reduced due to the rise of temperature. Among them, the most basic way is to use non-combustible or flame-retardant materials to make fire-retardant coatings.
After the foam extinguishing agent is expired, the constituent materials of the foam extinguishing agent still have good flame retardant performance, and the foam extinguishing agent is a water-based mixture, so that in order to avoid waste of the foam extinguishing agent and environmental pollution, the applicant proposes a protective coating based on the foam extinguishing agent.
Disclosure of Invention
The present invention is directed to provide a fire retardant coating material based on recycling of a foam extinguishing agent in order to solve the above problems, and a preferred embodiment of the present invention includes: the waste foam extinguishing agent can be used as a mixed raw material of the fireproof coating, so that the fireproof performance of the fireproof coating can be further improved, the waste foam extinguishing agent can be recycled, the waste is reduced, the technical effects of pollution prevention and the like are achieved, and the technical effects are explained in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a fireproof coating based on foam extinguishing agent recycling, which is prepared by mixing the following components in percentage by mass: 60-70 parts of cementing material;
25-35 parts of aggregate;
3-6 parts of a chemical auxiliary agent;
0.3-3 parts of foaming agent;
130 portions of water and 180 portions of water;
the foaming agent is a waste foam extinguishing agent with the foaming rate more than 5 times, and the waste foam extinguishing agent contains one or a mixture of more than one of alkyl glycoside APG, cocamidopropyl betaine CAB-35, sodium dodecyl sulfate K12 and dodecyl betaine BS-12.
Preferably, the cementing agent is one or a mixture of two of portland cement, magnesium aluminum oxide and an inorganic binder.
Preferably, the inorganic binder includes an alkali metal silicate-based inorganic binder and a phosphate-based inorganic binder.
Preferably, the aggregate is one of expanded vermiculite, expanded perlite, alumina silicate fiber, mineral wool and rock wool.
Preferably, the chemical additives are a modifier, a hardener and a waterproof agent, and the weight ratio of the chemical additives is 1: 1: 1, and mixing the components in a ratio of 1.
Preferably, the composition comprises the following components in percentage by mass: 60 parts of cementing material; 25 parts of aggregate; 3 parts of chemical auxiliary agent; 0.3 part of foaming agent; 130 parts of water.
Preferably, the composition comprises the following components in percentage by mass: 70 parts of cementing material; 35 parts of aggregate; 6 parts of chemical auxiliary agent; 3 parts of foaming agent; 180 parts of water.
Preferably, the composition comprises the following components in percentage by mass: 65 parts of cementing material; 27 parts of aggregate; 4.5 parts of chemical auxiliary agent; 1.3 parts of foaming agent; 155 portions of water.
Preferably, the composition comprises the following components in percentage by mass: 62 parts of cementing material; 27 parts of aggregate; 3.6 parts of chemical auxiliary agent; 0.68 part of foaming agent; 140 parts of water.
Preferably, the composition comprises the following components in percentage by mass: 68 parts of cementing material; 33 parts of aggregate; 5.4 parts of chemical auxiliary agent; 2.6 parts of foaming agent; 170 parts of water.
In conclusion, the beneficial effects of the invention are as follows: 1. the waste foam extinguishing agent is used as a mixed material of the fireproof coating, so that the waste of the foam extinguishing agent is reduced, and the environmental pollution caused by direct discharge of the foam extinguishing agent is eliminated;
2. the waste foam extinguishing agent has good foaming performance, and is mixed with water for foaming and then mixed with raw materials of the protective coating, so that the mixed fireproof coating is light, the heat-insulating performance of the fireproof coating is improved, and the fireproof effect is improved;
3. the waste foam extinguishing agent is used as a mixed material of the fireproof coating, does not generate harmful gas at high temperature, and is safe and environment-friendly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention provides a fireproof coating based on foam extinguishing agent recycling, which is prepared by mixing the following components in percentage by mass: 60-70 parts of cementing material, wherein the cementing material is one or a mixture of two of Portland cement, aluminum magnesium oxide and inorganic adhesive; the inorganic adhesive comprises an alkali metal silicate inorganic adhesive and a phosphate inorganic adhesive;
25-35 parts of aggregate, wherein the aggregate is one of expanded vermiculite, expanded perlite, aluminum silicate fiber, mineral wool and rock wool;
3-6 parts of chemical additives, wherein the chemical additives are a modifier, a hardening agent and a waterproof agent, and the weight ratio of the chemical additives is 1: 1: 1 in proportion;
0.3-3 parts of foaming agent;
130 portions of water and 180 portions of water;
the foaming agent is a waste foam extinguishing agent with the foaming rate more than 5 times, and the waste foam extinguishing agent contains one or a mixture of more than one of alkyl glycoside APG, cocamidopropyl betaine CAB-35, sodium dodecyl sulfate K12 and dodecyl betaine BS-12.
When in use, firstly, the cementing material, the aggregate and the chemical auxiliary agent are put into the cement foaming agent, and water is added to be mixed into slurry; then mixing the foaming agent with water, and adding a foaming agent mixed solution into the slurry for foaming and mixing; and finally, spraying the fireproof coating containing the foaming agent on the wall by using a mortar spraying machine, wherein the spraying can be carried out twice or three times, the spraying thickness is not more than 10mm each time, and the interval time of each spraying is not less than 2 hours.
The waste foam extinguishing agent is used as the foaming agent, so that the foaming efficiency is high, the foaming agent is sprayed to a target position after foaming, the fireproof coating can be lightened, and the fireproof coating has certain flame retardance, so that the fireproof effect of the fireproof coating can be ensured.
The examples are as follows:
example 1:
a fireproof coating based on foam extinguishing agent recycling is prepared by mixing the following components in percentage by mass: 60 parts of cementing material, wherein the cementing material is one or a mixture of two of Portland cement, magnesium aluminum oxide and inorganic adhesive; the inorganic adhesive comprises an alkali metal silicate inorganic adhesive and a phosphate inorganic adhesive; 25 parts of aggregate, wherein the aggregate is one of expanded vermiculite, expanded perlite, aluminum silicate fiber, mineral wool and rock wool; 3 parts of chemical auxiliary agents, wherein the chemical auxiliary agents are modifiers, hardening agents and waterproofing agents, and the weight ratio of the chemical auxiliary agents is 1: 1: 1 in proportion; 0.3 part of foaming agent; 130 parts of water; the foaming agent is a waste foam extinguishing agent with the foaming rate more than 5 times, and the waste foam extinguishing agent contains one or a mixture of more than one of alkyl glycoside APG, cocamidopropyl betaine CAB-35, sodium dodecyl sulfate K12 and dodecyl betaine BS-12.
Example 2:
a fireproof coating based on foam extinguishing agent recycling is prepared by mixing the following components in percentage by mass: 70 parts of cementing material, wherein the cementing material is one or a mixture of two of Portland cement, magnesium aluminum oxide and inorganic adhesive; the inorganic adhesive comprises an alkali metal silicate inorganic adhesive and a phosphate inorganic adhesive; 35 parts of aggregate, wherein the aggregate is one of expanded vermiculite, expanded perlite, aluminum silicate fiber, mineral wool and rock wool; 6 parts of chemical auxiliary agents, wherein the chemical auxiliary agents are modifiers, hardening agents and waterproofing agents, and the weight ratio of the chemical auxiliary agents is 1: 1: 1 in proportion; 3 parts of foaming agent; 180 parts of water; the foaming agent is a waste foam extinguishing agent with the foaming rate more than 5 times, and the waste foam extinguishing agent contains one or a mixture of more than one of alkyl glycoside APG, cocamidopropyl betaine CAB-35, sodium dodecyl sulfate K12 and dodecyl betaine BS-12.
Example 3:
a fireproof coating based on foam extinguishing agent recycling is prepared by mixing the following components in percentage by mass: 65 parts of cementing material, wherein the cementing material is one or a mixture of two of Portland cement, magnesium aluminum oxide and inorganic adhesive; the inorganic adhesive comprises an alkali metal silicate inorganic adhesive and a phosphate inorganic adhesive; 27 parts of aggregate, wherein the aggregate is one of expanded vermiculite, expanded perlite, aluminum silicate fiber, mineral wool and rock wool; 4.5 parts of chemical auxiliary agents, wherein the chemical auxiliary agents are modifiers, hardening agents and waterproofing agents, and the weight ratio of the chemical auxiliary agents is 1: 1: 1 in proportion; 1.3 parts of foaming agent; 155 portions of water; the foaming agent is a waste foam extinguishing agent with the foaming rate more than 5 times, and the waste foam extinguishing agent contains one or a mixture of more than one of alkyl glycoside APG, cocamidopropyl betaine CAB-35, sodium dodecyl sulfate K12 and dodecyl betaine BS-12.
Example 4:
a fireproof coating based on foam extinguishing agent recycling is prepared by mixing the following components in percentage by mass: 62 parts of cementing material, wherein the cementing material is one or a mixture of two of Portland cement, magnesium aluminum oxide and inorganic adhesive; the inorganic adhesive comprises an alkali metal silicate inorganic adhesive and a phosphate inorganic adhesive; 27 parts of aggregate, wherein the aggregate is one of expanded vermiculite, expanded perlite, aluminum silicate fiber, mineral wool and rock wool; 3.6 parts of chemical auxiliary agents, wherein the chemical auxiliary agents are modifiers, hardening agents and waterproofing agents, and the weight ratio of the chemical auxiliary agents is 1: 1: 1 in proportion; 0.68 part of foaming agent; 140 parts of water; the foaming agent is a waste foam extinguishing agent with the foaming rate more than 5 times, and the waste foam extinguishing agent contains one or a mixture of more than one of alkyl glycoside APG, cocamidopropyl betaine CAB-35, sodium dodecyl sulfate K12 and dodecyl betaine BS-12.
Example 5:
a fireproof coating based on foam extinguishing agent recycling is prepared by mixing the following components in percentage by mass: 68 parts of cementing material, wherein the cementing material is one or a mixture of two of Portland cement, aluminum magnesium oxide and inorganic adhesive; the inorganic adhesive comprises an alkali metal silicate inorganic adhesive and a phosphate inorganic adhesive; 33 parts of aggregate, wherein the aggregate is one of expanded vermiculite, expanded perlite, aluminum silicate fiber, mineral wool and rock wool; 5.4 parts of chemical auxiliary agents, wherein the chemical auxiliary agents are modifiers, hardening agents and waterproofing agents, and the weight ratio of the chemical auxiliary agents is 1: 1: 1 in proportion; 2.6 parts of foaming agent; 170 parts of water; the foaming agent is a waste foam extinguishing agent with the foaming rate more than 5 times, and the waste foam extinguishing agent contains one or a mixture of more than one of alkyl glycoside APG, cocamidopropyl betaine CAB-35, sodium dodecyl sulfate K12 and dodecyl betaine BS-12.
The paint is prepared by mixing the following components in percentage by mass: 68 parts of cementing material; 33 parts of aggregate; 5.4 parts of chemical auxiliary agent; 2.6 parts of foaming agent; 170 parts of water.
By adopting the fireproof coating, the performance indexes are as follows through inspection:
the light powder with the offwhite granular appearance is qualified
Fineness/min 0.9;
surface dryness/h 9;
dry density/kg m-3530;
water resistance/d 22;
alkali resistance/h 40;
acid resistance/h 59;
the bonding strength/MPa is 0.4;
compressive strength/MPa 0.3;
the heat and cold resistance is cycled for 20 times, and the cracking and falling-off are avoided for 23 times; can be used for the fire protection of external walls and internal walls of various concrete structures.
The waste foam extinguishing agent is used as a mixed material of the fireproof coating, so that the waste of the foam extinguishing agent is reduced, and the environmental pollution caused by direct discharge of the foam extinguishing agent is eliminated; the waste foam extinguishing agent has good foaming performance, and is mixed with water for foaming and then mixed with raw materials of the protective coating, so that the mixed fireproof coating is light, the heat-insulating performance of the fireproof coating is improved, and the fireproof effect is improved; the waste foam extinguishing agent is used as a mixed material of the fireproof coating, does not generate harmful gas at high temperature, and is safe and environment-friendly.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A fireproof coating based on foam extinguishing agent recycling is prepared by mixing the following components in percentage by mass: 60-70 parts of cementing material;
25-35 parts of aggregate;
3-6 parts of a chemical auxiliary agent;
0.3-3 parts of foaming agent;
130 portions of water and 180 portions of water;
the foaming agent is a waste foam extinguishing agent with the foaming rate more than 5 times, and the waste foam extinguishing agent contains one or a mixture of more than one of alkyl glycoside APG, cocamidopropyl betaine CAB-35, sodium dodecyl sulfate K12 and dodecyl betaine BS-12.
2. The fire retardant coating based on foam extinguishing agent recycling according to claim 1, characterized in that: the cementing material is one or a mixture of two of Portland cement, aluminum magnesium oxide and inorganic adhesive.
3. The fire retardant coating based on foam extinguishing agent recycling according to claim 2, characterized in that: the inorganic binder includes an alkali metal silicate type inorganic binder and a phosphate type inorganic binder.
4. The fire retardant coating based on foam extinguishing agent recycling according to claim 1, characterized in that: the aggregate is one of expanded vermiculite, expanded perlite, aluminum silicate fiber, mineral wool and rock wool.
5. The fire retardant coating based on foam extinguishing agent recycling according to claim 1, characterized in that: the chemical auxiliary agent is a modifier, a hardening agent and a waterproof agent, and the weight ratio of the chemical auxiliary agent to the water-proof agent is 1: 1: 1, and mixing the components in a ratio of 1.
6. The fire retardant coating based on foam extinguishing agent recycling according to claim 1, characterized in that: the paint is prepared by mixing the following components in percentage by mass: 60 parts of cementing material; 25 parts of aggregate; 3 parts of chemical auxiliary agent; 0.3 part of foaming agent; 130 parts of water.
7. The fire retardant coating based on foam extinguishing agent recycling according to claim 1, characterized in that: the paint is prepared by mixing the following components in percentage by mass: 70 parts of cementing material; 35 parts of aggregate; 6 parts of chemical auxiliary agent; 3 parts of foaming agent; 180 parts of water.
8. The fire retardant coating based on foam extinguishing agent recycling according to claim 1, characterized in that: the paint is prepared by mixing the following components in percentage by mass: 65 parts of cementing material; 27 parts of aggregate; 4.5 parts of chemical auxiliary agent; 1.3 parts of foaming agent; 155 portions of water.
9. The fire retardant coating based on foam extinguishing agent recycling according to claim 1, characterized in that: the paint is prepared by mixing the following components in percentage by mass: 62 parts of cementing material; 27 parts of aggregate; 3.6 parts of chemical auxiliary agent; 0.68 part of foaming agent; 140 parts of water.
10. The fire retardant coating based on foam extinguishing agent recycling according to claim 1, characterized in that: the paint is prepared by mixing the following components in percentage by mass: 68 parts of cementing material; 33 parts of aggregate; 5.4 parts of chemical auxiliary agent; 2.6 parts of foaming agent; 170 parts of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010403490.5A CN111393884A (en) | 2020-05-13 | 2020-05-13 | Fireproof coating based on recycling of foam extinguishing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010403490.5A CN111393884A (en) | 2020-05-13 | 2020-05-13 | Fireproof coating based on recycling of foam extinguishing agent |
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| CN111393884A true CN111393884A (en) | 2020-07-10 |
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| CN202010403490.5A Pending CN111393884A (en) | 2020-05-13 | 2020-05-13 | Fireproof coating based on recycling of foam extinguishing agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111849229A (en) * | 2020-07-30 | 2020-10-30 | 湖南理工学院 | Fire escape passage fireproof powder coating and preparation process thereof |
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2020
- 2020-05-13 CN CN202010403490.5A patent/CN111393884A/en active Pending
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| CN101519942A (en) * | 2009-04-02 | 2009-09-02 | 王本淼 | Fireproof door frame and manufacturing method thereof |
| CN101519312A (en) * | 2009-04-02 | 2009-09-02 | 王本淼 | Cast-in-situ fireproof material of fireproof door and manufacturing method of fireproof door |
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| CN111849229A (en) * | 2020-07-30 | 2020-10-30 | 湖南理工学院 | Fire escape passage fireproof powder coating and preparation process thereof |
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Application publication date: 20200710 |