CN114988830A - Non-intumescent fire retardant coating and preparation method thereof - Google Patents
Non-intumescent fire retardant coating and preparation method thereof Download PDFInfo
- Publication number
- CN114988830A CN114988830A CN202210483209.2A CN202210483209A CN114988830A CN 114988830 A CN114988830 A CN 114988830A CN 202210483209 A CN202210483209 A CN 202210483209A CN 114988830 A CN114988830 A CN 114988830A
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- Prior art keywords
- parts
- coating
- gypsum
- fire retardant
- intumescent fire
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to the technical field of fire-retardant coatings, in particular to a non-intumescent fire-retardant coating and a preparation method thereof; as the polystyrene particles are added into the fireproof coating in a large proportion, renewable resources can be utilized to a large extent, the consumption of traditional energy sources is reduced, and the fireproof coating meets the requirements of protecting the environment and solving the energy sources.
Description
Technical Field
The invention relates to the technical field of fire-retardant coatings, in particular to a non-intumescent fire-retardant coating and a preparation method thereof.
Background
In the prior art, the fireproof coating is a coating which is coated on the surface of a combustible substrate and plays a role in decorating and protecting the substrate. In recent years, the durability, water resistance, fire resistance and the like of fire-retardant coatings have been greatly improved and enhanced, and the variety and application range of fire-retardant coatings have been expanding. However, the existing fireproof coatings also have a lot of problems, with the increasing call for environmental protection and energy saving, the environmental-friendly fireproof coatings will become the main development direction of the coating industry, however, the utilization rate of the polystyrene waste in the existing fireproof coatings is low.
Disclosure of Invention
The invention aims to solve the problem of how to improve the utilization rate of polystyrene waste in the fireproof coating.
In order to solve the technical problem, the invention provides a non-intumescent fire retardant coating, which is characterized in that: the fireproof coating is 5mm in coating thickness on the surface of a substrate and comprises the following raw materials in parts by weight: 20-40 parts of gypsum, 10-30 parts of polystyrene particles, 10-20 parts of fly ash and 10-15 parts of other auxiliary agents;
the other auxiliary agents are composed of the following raw materials in proportion: 30% of retarder, 20% of accelerator, 40% of cellulose and 10% of air entraining agent;
the gypsum is desulfurized gypsum powder, and the cellulose is from a pure cotton product;
the mesh number of the fly ash is 350 meshes, and the mesh number of the other auxiliary agents is 450 meshes.
As the polystyrene particles are added into the fireproof coating in a large proportion, the invention can utilize renewable resources to a large extent, reduce the consumption of traditional energy sources, and meet the requirements of protecting the environment and solving the energy sources.
Detailed Description
Polystyrene refers to a polymer synthesized by free radical addition polymerization of styrene monomer, is a colorless and transparent thermoplastic plastic, has a glass transition temperature higher than 100 ℃, and is often used for manufacturing various disposable containers which need to bear the temperature of boiled water, disposable foam lunch boxes and the like, however, the polystyrene has huge waste amount due to small mass and low residual value.
Based on the above, the invention relates to a non-intumescent fire retardant coating, which is prepared by taking polystyrene particles as main raw materials and is a non-intumescent fire retardant coating, the fire retardant coating can be used as a thin-coating type fire retardant coating, an effective fire retardant layer can be formed when the coating thickness is 5mm, the high temperature resistance reaches 1400 ℃, and the fire resistance limit reaches 2.5 h.
In recent years, medium and high-rise building fire frequently occurs, and the rescue capability is poor, so that greater casualties and property loss are often brought, therefore, the fireproof coating prepared by the invention is mainly applied to the fire prevention of building wall surfaces, the spread of fire is avoided to the maximum extent, and the loss is reduced to the minimum.
The invention provides a non-intumescent fire retardant coating, wherein the coating thickness of the fire retardant coating on the surface of a base material is 5mm, and the fire retardant coating is composed of the following raw materials in parts by weight: 20-40 parts of gypsum, 10-30 parts of polystyrene particles, 10-20 parts of fly ash and 10-15 parts of other auxiliary agents;
the other auxiliary agents are composed of the following raw materials in proportion: 30% of retarder, 20% of accelerator, 40% of cellulose and 10% of air entraining agent;
the gypsum is desulfurized gypsum powder, and the cellulose is from a pure cotton product;
the mesh number of the fly ash is 350 meshes, and the mesh number of the other auxiliary agents is 450 meshes.
The invention provides a method for preparing a non-intumescent fire retardant coating, which comprises the following steps:
uniformly mixing gypsum, polystyrene particles, fly ash, a retarder, an accelerating agent, cellulose and an air entraining agent to prepare the fireproof coating.
Example 1
1, raw material composition:
20 parts of gypsum, 30 parts of polystyrene particles, 20 parts of fly ash and 10 parts of other auxiliary agents.
2, the using method comprises the following steps:
mixing the prepared fireproof coating and water according to the weight ratio of 1: 0.6, preparing slurry after evenly mixing, immediately coating the slurry on the surface of a base material, and curing for 5 days.
Example 2
1, raw material composition:
30 parts of gypsum, 20 parts of polystyrene particles, 15 parts of fly ash and 13 parts of other auxiliary agents.
2, the using method comprises the following steps:
mixing the prepared fireproof coating and water according to the weight ratio of 1: 0.45, preparing into slurry after uniformly mixing, immediately coating on the surface of a base material, and maintaining for 5 days.
Example 3
1, raw material composition:
40 parts of gypsum, 10 parts of polystyrene particles, 10 parts of fly ash and 15 parts of other auxiliary agents.
2, the using method comprises the following steps:
mixing the prepared fireproof coating and water according to the weight ratio of 1: 0.35, preparing into slurry after uniformly mixing, immediately coating on the surface of a base material, and maintaining for 5 days.
The fireproof coatings prepared in examples 1 to 3 were applied to the lower surface of a base plate to a thickness of 5mm, and then placed in a ventilated and dried room for curing, using a prestressed concrete core slab as the base plate for the test.
The performance indexes of the fireproof coating, including water resistance, alkali resistance and fire resistance, are tested according to the technical requirements of the concrete construction fireproof coating in GA 98-2005. The results are shown in tables 1 to 3.
As can be seen from tables 1 to 3, the fireproof coating prepared in example 1 of the present invention satisfies the national standards, and has good water resistance, alkali resistance, and fire resistance.
TABLE 1 Water resistance test results
| Performance index | Example 1 | Example 2 | Example 3 |
| Water resistance (h) | After 72h experiment, the coating does not crack, rise and fall off | After 72h experiment, the coating does not crack, partially rises and does not fall off | After 72h experiment, the coating does not crack, does not generate a layer and partially falls off |
TABLE 2 alkali resistance test results
| Performance index | Example 1 | Example 2 | Example 3 |
| Alkali resistance (h) | After 72h experiment, the coating does not crack, rise and fall off | After 72h experiment, the coating does not crack, rise and fall off | After 72h experiment, the coating does not crack, partially rises and does not fall off |
TABLE 3 test results of fire resistance
| Performance index | Example 1 | Example 2 | Example 3 |
| Fire resistance (h) | 2.5 | 2.2 | 2.3 |
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (4)
1. A non-intumescent fire retardant coating is characterized in that: the fireproof coating is 5mm in coating thickness on the surface of a substrate and comprises the following raw materials in parts by weight: 20-40 parts of gypsum, 10-30 parts of polystyrene particles, 10-20 parts of fly ash and 10-15 parts of other auxiliary agents;
the other auxiliary agents are composed of the following raw materials in proportion: 30% of retarder, 20% of accelerator, 40% of cellulose and 10% of air entraining agent;
the gypsum is desulfurized gypsum powder, and the cellulose is from a pure cotton product;
the mesh number of the fly ash is 350 meshes, and the mesh number of the other auxiliary agents is 450 meshes.
2. A non-intumescent fire retardant coating as claimed in claim 1, characterized in that: the composition is characterized by comprising the following raw materials in parts by weight: 20 parts of gypsum, 30 parts of polystyrene particles, 20 parts of fly ash and 10 parts of other auxiliary agents.
3. Process for the preparation of a non-intumescent fire retardant coating as claimed in any of claims 1-2, characterized in that: the method comprises the following steps:
gypsum, polystyrene particles, fly ash, a retarder, an accelerator, cellulose and an air entraining agent are uniformly mixed, so that the fireproof coating is prepared.
4. Use of a non-intumescent fire protection coating according to any of claims 1-2 for fire protection of walls in construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210483209.2A CN114988830A (en) | 2022-05-06 | 2022-05-06 | Non-intumescent fire retardant coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210483209.2A CN114988830A (en) | 2022-05-06 | 2022-05-06 | Non-intumescent fire retardant coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114988830A true CN114988830A (en) | 2022-09-02 |
Family
ID=83026190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210483209.2A Withdrawn CN114988830A (en) | 2022-05-06 | 2022-05-06 | Non-intumescent fire retardant coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114988830A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107619250A (en) * | 2017-10-23 | 2018-01-23 | 河南耐泰防火科技有限公司 | A kind of heat-insulating environment-protection type fireproof coating and preparation method thereof |
| CN111117310A (en) * | 2020-01-19 | 2020-05-08 | 北京天佐消防产品有限公司 | Non-expansive gypsum fire-retardant coating and preparation method thereof |
-
2022
- 2022-05-06 CN CN202210483209.2A patent/CN114988830A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107619250A (en) * | 2017-10-23 | 2018-01-23 | 河南耐泰防火科技有限公司 | A kind of heat-insulating environment-protection type fireproof coating and preparation method thereof |
| CN111117310A (en) * | 2020-01-19 | 2020-05-08 | 北京天佐消防产品有限公司 | Non-expansive gypsum fire-retardant coating and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220902 |
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| WW01 | Invention patent application withdrawn after publication |