CN111138144A - Anti-cracking fireproof coating - Google Patents
Anti-cracking fireproof coating Download PDFInfo
- Publication number
- CN111138144A CN111138144A CN201911334131.2A CN201911334131A CN111138144A CN 111138144 A CN111138144 A CN 111138144A CN 201911334131 A CN201911334131 A CN 201911334131A CN 111138144 A CN111138144 A CN 111138144A
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- CN
- China
- Prior art keywords
- parts
- fireproof coating
- polyvinyl alcohol
- fire
- coating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
-
- 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
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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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
Abstract
The invention discloses an anti-cracking fireproof coating which comprises the following components in parts by weight: 40-60 parts of reinforcing glue, 100-120 parts of high-alumina cement, 10-20 parts of pressure relief expanding agent, 5-10 parts of reinforcing fiber, 3-5 parts of rheological agent and 200-300 parts of hydrosolvent; the rheological agent is a mixture of hydrogenated castor oil and polyvinyl alcohol fibers; the reinforced glue comprises 5-10 parts of polyvinyl alcohol, 50-100 parts of ammonia water and 5-20 parts of a modifier; the modifier is a mixture of ammonium sulfate, sodium bisulfite and sodium borate. According to the invention, polyvinyl alcohol is used as a main molding material, and added ammonium sulfate, sodium bisulfite, sodium borate, wollastonite, expanded vermiculite, amorphous silica and sepiolite are matched for use, so that the fireproof coating is endowed with relative flexibility and adhesive force, the tight combination degree between the fireproof coating and a base material is improved, stronger adhesive force and ductility are formed, the probability of explosion of the fireproof coating under the action of high temperature and open fire is reduced, and the fireproof performance of the base material is improved.
Description
Technical Field
The invention relates to the technical field of fire protection and fire prevention, in particular to an anti-cracking fire-retardant coating.
Background
The fireproof coating is a special coating which is used for reducing the flammability of the surface of a coated material, changing the surface burning characteristic of the material and retarding the rapid propagation of fire or applied to a building component and is used for improving the fire resistance limit of the component.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the anti-cracking fireproof coating is provided, the performance of the fireproof coating is improved, the probability that the fireproof coating cracks under the action of high temperature and open fire is reduced, and therefore the fireproof performance of a base material is improved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the anti-explosion fireproof coating can improve the anti-explosion performance of the fireproof coating under the action of high temperature and open fire, reduce the explosion probability of the fireproof coating and improve the fireproof performance of the fireproof coating, and comprises the following components in parts by weight: 40-60 parts of reinforcing glue, 100-120 parts of adhesive, 10-20 parts of pressure relief expanding agent, 5-10 parts of reinforcing fiber, 3-5 parts of rheological agent and 200-300 parts of hydrosolvent;
the reinforced glue comprises 5-10 parts of polyvinyl alcohol, 50-100 parts of ammonia water and 5-20 parts of a modifier;
the adhesive is high alumina cement, and the pressure relief expanding agent is a mixture of wollastonite, sepiolite, expanded vermiculite and amorphous silica;
the rheological agent is a mixture of hydrogenated castor oil and polyvinyl alcohol fibers; the modifier is a mixture of ammonium sulfate, sodium bisulfite and sodium borate.
Further, the weight ratio of the wollastonite, the sepiolite, the expanded vermiculite and the amorphous silica is as follows: 1: 1-2: 1-2: 0.5-1.
Specifically, the preparation method of the reinforced glue comprises the following steps:
s1: adding 5-10 parts of polyvinyl alcohol into 100 parts of clear water, and stirring and dissolving to obtain a component A for later use;
s2: taking another 100 parts of clear water, heating to 40-50 ℃, adding 50-100 parts of ammonia water, uniformly mixing, adding 50-20 parts of ammonium sulfate, sodium bisulfite and sodium borate in any weight ratio, stirring while adding, and reacting for 30-60 min to obtain a component B;
s3: and (5) mixing and stirring the component A obtained in the step S1 and the component B obtained in the step S2 for 30-60 min, and adding clear water to 1000 weight parts to obtain the reinforced glue.
Further, the weight ratio of the ammonium sulfate to the sodium bisulfite to the sodium borate is 1:1: 1.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, polyvinyl alcohol is used as a main molding material, and ammonium sulfate, sodium bisulfite and sodium borate are added to endow the fireproof coating with relative flexibility and adhesive force, so that the tight combination degree between the fireproof coating and a base material is improved, meanwhile, wollastonite, expanded vermiculite, amorphous silica and sepiolite are matched for use, and the strong adsorption performance formed by the structural points of the sepiolite is combined, so that the components in the fireproof coating are tightly and effectively combined together to form strong adhesive force and ductility, the performance of the fireproof coating is greatly improved, the high temperature resistance and open fire resistance of the fireproof coating are improved, the probability of explosion of the fireproof coating under the action of high temperature and open fire is reduced, and the fireproof performance of the base material is improved.
(2) The sodium borate is added to react with a pressure relief expanding agent, namely wollastonite, sepiolite, expanded vermiculite and amorphous silica, in the fireproof coating under a heated condition to form a soft substance, and the soft substance is expanded to form a nonflammable substance base with a three-dimensional space structure, so that a foam carbonization layer is subjected to a skeleton effect, meanwhile, fibers are added to further strengthen the skeleton of the fireproof coating, the structural stability of the fireproof coating after being heated is improved, the fireproof coating is further prevented from bursting under the effects of high temperature and open fire, and the fireproof performance of the fireproof coating is improved.
Detailed Description
The present invention is further illustrated by the following examples, which include, but are not limited to, the following examples.
An anti-cracking fireproof coating comprises the following components in parts by weight: 40-60 parts of reinforcing glue, 100-120 parts of adhesive, 10-20 parts of pressure relief expanding agent, 5-10 parts of reinforcing fiber, 3-5 parts of rheological agent and 200-300 parts of hydrosolvent; the rheological agent is a mixture of hydrogenated castor oil and polyvinyl alcohol fibers;
the reinforced glue comprises 5-10 parts of polyvinyl alcohol, 50-100 parts of ammonia water and 5-20 parts of a modifier; the modifier is a mixture of ammonium sulfate, sodium bisulfite and sodium borate.
The adhesive is high-alumina cement; the decompression expanding agent is a mixture of wollastonite, sepiolite, expanded vermiculite and amorphous silica, and the weight ratio of the wollastonite, the sepiolite, the expanded vermiculite and the amorphous silica is as follows: 1: 1-2: 1-2: 0.5-1.
The preparation method of the reinforced glue comprises the following steps:
s1: adding 5-10 parts of polyvinyl alcohol into 100 parts of clear water, and stirring and dissolving to obtain a component A for later use;
s2: taking another 100 parts of clear water, heating to 40-50 ℃, adding 50-100 parts of ammonia water, uniformly mixing, adding 50-20 parts of ammonium sulfate, sodium bisulfite and sodium borate in any weight ratio, stirring while adding, and reacting for 30-60 min to obtain a component B; preferably, the weight ratio of ammonium sulfate, sodium bisulfite and sodium borate is 1:1: 1.
S3: and (5) mixing and stirring the component A obtained in the step S1 and the component B obtained in the step S2 for 30-60 min, and adding clear water to 1000 weight parts to obtain the reinforced glue.
Example 1
The fireproof coating comprises the following substances in parts by weight:
60 parts of reinforcing glue, 100 parts of high alumina cement, 2 parts of wollastonite, 3 parts of sepiolite, 3 parts of expanded vermiculite, 2 parts of amorphous silica, 5 parts of reinforcing fiber, 1 part of hydrogenated castor oil, 2 parts of polyvinyl alcohol fiber and 200 parts of water solvent. The fire-proof coating prepared according to the formula in the embodiment has no obvious cracks when the fire-proof coating is continuously burnt by open fire for 2 hours, and the coating attached to the surface of the base material does not fall off in a large area when a wooden stick is used for tapping the coating.
Example 2
The fireproof coating comprises the following substances in parts by weight:
50 parts of reinforcing glue, 120 parts of high alumina cement, 6 parts of wollastonite, 8 parts of sepiolite, 5 parts of expanded vermiculite, 2 parts of amorphous silica, 5 parts of reinforcing fiber, 3 parts of hydrogenated castor oil, 2 parts of polyvinyl alcohol fiber and 250 parts of water solvent. The fire-proof coating prepared according to the formula in the embodiment has no obvious cracks when the fire-proof coating is continuously burnt by open fire for 2 hours, and the coating attached to the surface of the base material does not fall off in a large area when a wooden stick is used for tapping the coating.
Example 3
The fireproof coating comprises the following substances in parts by weight:
40 parts of reinforcing glue, 100 parts of high alumina cement, 4 parts of wollastonite, 6 parts of sepiolite, 6 parts of expanded vermiculite, 3 parts of amorphous silica, 10 parts of reinforcing fiber, 2 parts of hydrogenated castor oil, 1 part of polyvinyl alcohol fiber and 200 parts of water solvent. The fire-proof coating prepared according to the formula in the embodiment has no obvious cracks when the fire-proof coating is continuously burnt by open fire for 2 hours, and the coating attached to the surface of the base material does not fall off in a large area when a wooden stick is used for tapping the coating.
Example 4
The fireproof coating comprises the following substances in parts by weight:
60 parts of reinforcing glue, 120 parts of high alumina cement, 5 parts of wollastonite, 6 parts of sepiolite, 6 parts of expanded vermiculite, 3 parts of amorphous silica, 10 parts of reinforcing fiber, 2 parts of hydrogenated castor oil, 3 parts of polyvinyl alcohol fiber and 200 parts of water solvent. The fire-proof coating prepared according to the formula in the embodiment has no obvious cracks when the fire-proof coating is continuously burnt by open fire for 2 hours, and the coating attached to the surface of the base material does not fall off in a large area when a wooden stick is used for tapping the coating.
Example 5
The fireproof coating comprises the following substances in parts by weight:
40 parts of reinforcing glue, 100 parts of high-alumina cement, 6 parts of wollastonite, 6 parts of sepiolite, 6 parts of expanded vermiculite, 4 parts of amorphous silica, 5 parts of reinforcing fiber, 3 parts of hydrogenated castor oil, 2 parts of polyvinyl alcohol fiber and 200 parts of water solvent. The fire-proof coating prepared according to the formula in the embodiment has no obvious cracks when the fire-proof coating is continuously burnt by open fire for 2 hours, and the coating attached to the surface of the base material does not fall off in a large area when a wooden stick is used for tapping the coating.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (4)
1. An anti-cracking fireproof coating is characterized in that: comprises the following components by weight: 40-60 parts of reinforcing glue, 100-120 parts of adhesive, 10-20 parts of pressure relief expanding agent, 5-10 parts of reinforcing fiber, 3-5 parts of rheological agent and 200-300 parts of hydrosolvent;
the reinforced glue comprises 5-10 parts of polyvinyl alcohol, 50-100 parts of ammonia water and 5-20 parts of a modifier;
the adhesive is high alumina cement, and the pressure relief expanding agent is a mixture of wollastonite, sepiolite, expanded vermiculite and amorphous silica;
the rheological agent is a mixture of hydrogenated castor oil and polyvinyl alcohol fibers; the modifier is a mixture of ammonium sulfate, sodium bisulfite and sodium borate.
2. The anti-explosion and fire-proof coating as claimed in claim 1, wherein: the weight ratio of the wollastonite, the sepiolite, the expanded vermiculite and the amorphous silica is as follows: 1: 1-2: 1-2: 0.5-1.
3. The anti-explosion and fire-proof coating as claimed in claim 1, wherein: the preparation method of the reinforced glue comprises the following steps:
s1: adding 5-10 parts of polyvinyl alcohol into 100 parts of clear water, and stirring and dissolving to obtain a component A for later use;
s2: taking another 100 parts of clear water, heating to 40-50 ℃, adding 50-100 parts of ammonia water, uniformly mixing, adding 50-20 parts of ammonium sulfate, sodium bisulfite and sodium borate in any weight ratio, stirring while adding, and reacting for 30-60 min to obtain a component B;
s3: and (5) mixing and stirring the component A obtained in the step S1 and the component B obtained in the step S2 for 30-60 min, and adding clear water to 1000 weight parts to obtain the reinforced glue.
4. The anti-explosion and fire-proof coating as claimed in claim 3, wherein: the weight ratio of the ammonium sulfate to the sodium bisulfite to the sodium borate is 1:1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334131.2A CN111138144A (en) | 2019-12-23 | 2019-12-23 | Anti-cracking fireproof coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334131.2A CN111138144A (en) | 2019-12-23 | 2019-12-23 | Anti-cracking fireproof coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111138144A true CN111138144A (en) | 2020-05-12 |
Family
ID=70519340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911334131.2A Pending CN111138144A (en) | 2019-12-23 | 2019-12-23 | Anti-cracking fireproof coating |
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| CN (1) | CN111138144A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641414A (en) * | 2013-12-11 | 2014-03-19 | 海龙核材科技（江苏）有限公司 | Fireproof, anti-permeable and mildewproof tunnel fire retardant coating and preparation method thereof |
| CN103834129A (en) * | 2012-11-22 | 2014-06-04 | 苏斌 | Green and environment friendly powdery building glue powder |
| CN105694648A (en) * | 2016-02-29 | 2016-06-22 | 公安部四川消防研究所 | Hydrocarbon resistance fire-proof and explosion-proof coating |
| CN108641452A (en) * | 2018-06-05 | 2018-10-12 | 石磊 | A kind of preparation method of fire-proof coating for tunnels |
| KR101959434B1 (en) * | 2018-08-27 | 2019-03-19 | (주)대한하이텍건설 | Eco-Friendly Fire Resistant Mortar Composition and Constructing Methods Using Thereof |
-
2019
- 2019-12-23 CN CN201911334131.2A patent/CN111138144A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834129A (en) * | 2012-11-22 | 2014-06-04 | 苏斌 | Green and environment friendly powdery building glue powder |
| CN103641414A (en) * | 2013-12-11 | 2014-03-19 | 海龙核材科技（江苏）有限公司 | Fireproof, anti-permeable and mildewproof tunnel fire retardant coating and preparation method thereof |
| CN105694648A (en) * | 2016-02-29 | 2016-06-22 | 公安部四川消防研究所 | Hydrocarbon resistance fire-proof and explosion-proof coating |
| CN108641452A (en) * | 2018-06-05 | 2018-10-12 | 石磊 | A kind of preparation method of fire-proof coating for tunnels |
| KR101959434B1 (en) * | 2018-08-27 | 2019-03-19 | (주)대한하이텍건설 | Eco-Friendly Fire Resistant Mortar Composition and Constructing Methods Using Thereof |
Non-Patent Citations (2)
| Title |
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| 徐忠恺: "《化学药剂在造纸工业的应用》", 31 December 1964, 轻工业出版社 * |
| 牛伯羽: "《土木工程材料》", 31 January 2019, 中国质检出版社 * |
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