CN105131783B - Ultrathin steel structure fireproof coating and preparation method thereof - Google Patents
Ultrathin steel structure fireproof coating and preparation method thereof Download PDFInfo
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- CN105131783B CN105131783B CN201510585569.3A CN201510585569A CN105131783B CN 105131783 B CN105131783 B CN 105131783B CN 201510585569 A CN201510585569 A CN 201510585569A CN 105131783 B CN105131783 B CN 105131783B
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Abstract
The invention discloses an ultrathin steel structure fireproof coating which comprises the following raw materials in parts by weight: 30-40 parts of amino resin, 10-20 parts of solvent oil, 20-30 parts of ammonium polyphosphate, 2-10 parts of titanium dioxide, 5-12 parts of melamine, 5-12 parts of pentaerythritol, 0.5-1.5 parts of bentonite and 2-4 parts of chlorinated paraffin. The relevant indexes of the ultrathin steel structure fireproof coating reach the national standard, no toxic gas is released in the construction process, the coating is safe and environment-friendly, the coating can be widely applied to various steel structure buildings, the surface drying time and the fire resistance limit of the coating are superior to the national standard, the effect is obvious, and the coating has high market value.
Description
Technical Field
The invention belongs to the technical field of fireproof coatings, and particularly relates to an ultrathin steel structure fireproof coating and a preparation method thereof.
Background
The steel structure is a common structural form of modern buildings, and has the advantages of high strength, strong load, light dead weight, small volume and the like, along with the rapid development of economic construction in China, steel structure buildings appear in high-rise buildings such as public buildings, commercial buildings and the like and industrial plants in large quantity, although the steel structure has the advantages, the problem of poor fire resistance exists, particularly when the temperature reaches 400-600 ℃, the strength of the steel structure is linearly reduced, and when the temperature reaches more than 600 ℃, the steel structure almost loses the bearing capacity. Therefore, effective protection measures are taken for the steel structure, so that the steel structure can be prevented from being directly burnt by high-temperature flame in an accident, the collapse time is delayed, and the important time is provided for fire rescue. The fire prevention measures of the current steel structure can be divided into several categories: (1) building bricks on the surface of the steel structure or spraying a layer of concrete mortar; (2) wrapping inorganic fiber cloth and an inorganic fiber felt on the surface of the steel structure; (3) filling the processed liquid and water in the hollow steel column; (4) pasting non-combustion plates on the constructional bodies such as steel structure columns, beams, floor slabs and the like; the method has the advantages of complex construction, higher cost and influence on the appearance.
In conclusion, the steel structure fireproof coating is produced, and is characterized in that the expansion type fireproof coating is adopted to coat and protect a steel structure, when a fire disaster occurs, the coating expands when heated, the thickness is increased rapidly, and a spongy heat insulation layer which is more than many times thicker than the original coating is formed, so that the fireproof and heat insulation effects are achieved.
Disclosure of Invention
The invention provides an ultrathin steel structure fireproof coating, which has the advantages of simple formula, low cost, no toxicity or pollution and excellent fireproof performance, and solves various defects of the fireproof coating in the prior art.
The technical scheme adopted by the invention is as follows:
an indoor ultrathin steel structure fireproof coating comprises the following raw materials in parts by weight:
30-40 parts of amino resin
10-20 parts of solvent oil
20-30 parts of ammonium polyphosphate
2-10 parts of titanium dioxide
5-12 parts of melamine
5-12 parts of pentaerythritol
0.5 to 1.5 portions of bentonite
2-4 parts of chlorinated paraffin.
As a preferred technical scheme, the ultrathin steel structure fireproof coating comprises the following raw materials in parts by weight:
32-38 parts of amino resin
12-18 parts of solvent oil
22-28 parts of ammonium polyphosphate
3-7 parts of titanium dioxide
6-10 parts of melamine
6-10 parts of pentaerythritol
0.8-1.2 parts of bentonite
2.5-3.5 parts of chlorinated paraffin.
As a further preferable technical scheme, the ultrathin steel structure fireproof coating comprises the following raw materials in parts by weight:
amino resin 35 parts
15 portions of solvent oil
25 parts of ammonium polyphosphate
5 parts of titanium dioxide
8 parts of melamine
Pentaerythritol 8 parts
1 part of bentonite
3 parts of chlorinated paraffin.
As a preferable technical scheme, the solvent oil is 200# solvent oil.
As a preferable technical scheme, 801 bentonite is selected as the bentonite.
The invention also provides a preparation method of the ultrathin steel structure fireproof coating, which comprises the following steps:
(1) preparing raw materials according to the following weight portion: 30-40 parts of amino resin, 10-20 parts of solvent oil, 20-30 parts of ammonium polyphosphate, 2-10 parts of titanium dioxide, 5-12 parts of melamine, 5-12 parts of pentaerythritol, 0.5-1.5 parts of bentonite and 2-4 parts of chlorinated paraffin;
(2) mixing and stirring the amino resin and the solvent oil uniformly according to the proportion, wherein the stirring time is not less than 10 minutes;
(3) then adding ammonium polyphosphate, titanium dioxide, melamine, pentaerythritol, bentonite and chlorinated paraffin, and dispersing at high speed for not less than 20 minutes to obtain a primary mixed material;
(4) sanding: sanding the primary mixed material in a sand mill for not less than 40 minutes to obtain slurry;
(5) stirring: and (3) putting the slurry into a proportioning cylinder, and uniformly stirring for not less than 20 minutes to obtain a finished product.
Preferably, the high speed dispersion time in the step (3) is 28 minutes.
As a preferable technical scheme, the sand milling time in the step (4) is 50 minutes.
Preferably, the stirring time in the step (5) is 35 minutes.
The invention has the beneficial effects that:
(1) the invention adopts the amino resin as the matrix resin, and solves the problems that the coating of the fireproof coating containing acrylic resin in the prior art can drop in the fire process, and the coating has fine cracks after being dried in construction and is not easy to dry out in construction; the amino resin has excellent mechanical property and adhesive property, can greatly improve the adhesive force of the coating, has good stability, and has the characteristics of good heat resistance, flame resistance, less smoke, low toxicity, low heat release and the like.
(2) The invention adopts No. 200 solvent oil as solvent, can be well compatible with resin materials, is beneficial to controlling the viscosity and solid content of the coating and is suitable for construction.
(3) The bentonite is added in the formula of the invention, so that the paint has obvious anti-settling effect, and the paint has wide raw material source, low price and is beneficial to cost control.
(4) The relevant indexes of the ultrathin steel structure fireproof coating reach the national standard, no toxic gas is released in the construction process, the coating is safe and environment-friendly, the coating can be widely applied to various steel structure buildings, the surface drying time and the fire resistance limit of the coating are superior to the national standard, the effect is obvious, and the coating has high market value.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The ultrathin steel structure fireproof coating comprises the following raw materials in parts by weight:
30 portions of amino resin
20 portions of solvent oil
20 portions of ammonium polyphosphate
10 portions of titanium dioxide
5 parts of melamine
Pentaerythritol 12 parts
0.5 part of bentonite
4 parts of chlorinated paraffin.
As a preferable technical scheme, the solvent oil is 200# solvent oil.
As a preferable technical scheme, 801 bentonite is selected as the bentonite.
The preparation method of the ultrathin steel structure fireproof coating comprises the following steps:
(1) preparing raw materials according to the weight part ratio;
(2) mixing and stirring the amino resin and the solvent oil uniformly according to the proportion for 12 minutes;
(3) then adding ammonium polyphosphate, titanium dioxide, melamine, pentaerythritol, bentonite and chlorinated paraffin, and dispersing at a high speed for 23 minutes to obtain a primary mixed material;
(4) sanding: sanding the primary mixed material in a sand mill for 52 minutes to obtain slurry;
(5) stirring: and (4) putting the slurry into a proportioning cylinder, and stirring uniformly for 25 minutes to obtain a finished product.
Example 2
The ultrathin steel structure fireproof coating comprises the following raw materials in parts by weight:
32 parts of amino resin
Solvent oil 18 parts
22 portions of ammonium polyphosphate
Titanium dioxide 7 parts
6 portions of melamine
Pentaerythritol 10 parts
0.8 portion of bentonite
3.5 parts of chlorinated paraffin.
As a preferable technical scheme, the solvent oil is 200# solvent oil.
As a preferable technical scheme, 801 bentonite is selected as the bentonite.
The preparation method of the ultrathin steel structure fireproof coating comprises the following steps:
(1) preparing raw materials according to the weight part ratio;
(2) mixing and stirring the amino resin and the solvent oil uniformly according to the proportion for 14 minutes;
(3) then adding ammonium polyphosphate, titanium dioxide, melamine, pentaerythritol, bentonite and chlorinated paraffin, and dispersing at a high speed for 25 minutes to obtain a primary mixed material;
(4) sanding: sanding the primary mixed material in a sand mill for 42 minutes to obtain slurry;
(5) stirring: and (4) putting the slurry into a batching cylinder, and stirring uniformly for 22 minutes to obtain a finished product.
Example 3
The ultrathin steel structure fireproof coating comprises the following raw materials in parts by weight:
amino resin 35 parts
15 portions of solvent oil
25 parts of ammonium polyphosphate
5 parts of titanium dioxide
8 parts of melamine
Pentaerythritol 8 parts
1 part of bentonite
3 parts of chlorinated paraffin.
As a preferable technical scheme, the solvent oil is 200# solvent oil.
As a preferable technical scheme, 801 bentonite is selected as the bentonite.
The preparation method of the ultrathin steel structure fireproof coating comprises the following steps:
(1) preparing raw materials according to the weight part ratio;
(2) mixing and stirring the amino resin and the solvent oil uniformly according to the proportion for 16 minutes;
(3) then adding ammonium polyphosphate, titanium dioxide, melamine, pentaerythritol, bentonite and chlorinated paraffin, and dispersing at a high speed for 28 minutes to obtain a primary mixed material;
(4) sanding: sanding the primary mixed material in a sand mill for 50 minutes to obtain slurry;
(5) stirring: and (4) putting the slurry into a proportioning cylinder, and stirring uniformly for 35 minutes to obtain a finished product.
Example 4
The ultrathin steel structure fireproof coating comprises the following raw materials in parts by weight:
38 portions of amino resin
12 portions of solvent oil
28 parts of ammonium polyphosphate
Titanium dioxide 3 parts
10 portions of melamine
Pentaerythritol 6 parts
1.2 portions of bentonite
2.5 parts of chlorinated paraffin.
As a preferable technical scheme, the solvent oil is 200# solvent oil.
As a preferable technical scheme, 801 bentonite is selected as the bentonite.
The preparation method of the ultrathin steel structure fireproof coating comprises the following steps:
(1) preparing raw materials according to the weight part ratio;
(2) mixing and stirring the amino resin and the solvent oil uniformly according to the proportion for 18 minutes;
(3) then adding ammonium polyphosphate, titanium dioxide, melamine, pentaerythritol, bentonite and chlorinated paraffin, and dispersing at a high speed for 30 minutes to obtain a primary mixed material;
(4) sanding: sanding the primary mixed material in a sand mill for 47 minutes to obtain slurry;
(5) stirring: and (3) putting the slurry into a proportioning cylinder, and stirring uniformly for 30 minutes to obtain a finished product.
Example 5
The ultrathin steel structure fireproof coating comprises the following raw materials in parts by weight:
40 parts of amino resin
10 portions of solvent oil
30 portions of ammonium polyphosphate
2 parts of titanium dioxide
12 portions of melamine
Pentaerythritol 5 parts
1.5 portions of bentonite
2 parts of chlorinated paraffin.
As a preferable technical scheme, the solvent oil is 200# solvent oil.
As a preferable technical scheme, 801 bentonite is selected as the bentonite.
The preparation method of the ultrathin steel structure fireproof coating comprises the following steps:
(1) preparing raw materials according to the weight part ratio;
(2) mixing and stirring the amino resin and the solvent oil uniformly according to the proportion for 20 minutes;
(3) then adding ammonium polyphosphate, titanium dioxide, melamine, pentaerythritol, bentonite and chlorinated paraffin, and dispersing at a high speed for 32 minutes to obtain a primary mixed material;
(4) sanding: sanding the primary mixed material in a sand mill for 44 minutes to obtain slurry;
(5) stirring: and (4) putting the slurry into a proportioning cylinder, and stirring uniformly for 33 minutes to obtain a finished product.
The detection is carried out according to the GB14907-2002 'steel structure fireproof coating' standard, and the result is shown in the table 1:
the comparison shows that the relevant indexes of the ultrathin steel structure fireproof coating all reach the national standard, the surface drying time and the fire resistance limit of the ultrathin steel structure fireproof coating are superior to the national standard, the effect is obvious, and the ultrathin steel structure fireproof coating has great market value.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The ultrathin steel structure fireproof coating is characterized by comprising the following raw materials in parts by weight:
30-40 parts of amino resin
10-20 parts of solvent oil
20-30 parts of ammonium polyphosphate
2-10 parts of titanium dioxide
5-12 parts of melamine
5-12 parts of pentaerythritol
0.5 to 1.5 portions of bentonite
2-4 parts of chlorinated paraffin, wherein the solvent oil is 200# solvent oil.
2. The ultrathin fireproof coating for steel structures as claimed in claim 1, which is prepared from the following raw materials in parts by weight:
32-38 parts of amino resin
12-18 parts of solvent oil
22-28 parts of ammonium polyphosphate
3-7 parts of titanium dioxide
6-10 parts of melamine
6-10 parts of pentaerythritol
0.8-1.2 parts of bentonite
2.5-3.5 parts of chlorinated paraffin.
3. The ultrathin fireproof coating for steel structures as claimed in claim 1, which is prepared from the following raw materials in parts by weight:
amino resin 35 parts
15 portions of solvent oil
25 parts of ammonium polyphosphate
5 parts of titanium dioxide
8 parts of melamine
Pentaerythritol 8 parts
1 part of bentonite
3 parts of chlorinated paraffin.
4. The ultrathin fireproof coating for steel structures as claimed in any one of claims 1 to 3, wherein the bentonite is 801 bentonite.
5. The preparation method of the ultrathin steel structure fireproof coating as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps:
(1) preparing raw materials according to the following weight portion: 30-40 parts of amino resin, 10-20 parts of solvent oil, 20-30 parts of ammonium polyphosphate, 2-10 parts of titanium dioxide, 5-12 parts of melamine, 5-12 parts of pentaerythritol, 0.5-1.5 parts of bentonite and 2-4 parts of chlorinated paraffin;
(2) mixing and stirring the amino resin and the solvent oil uniformly according to the proportion, wherein the stirring time is not less than 10 minutes;
(3) then adding ammonium polyphosphate, titanium dioxide, melamine, pentaerythritol, bentonite and chlorinated paraffin, and dispersing at high speed for not less than 20 minutes to obtain a primary mixed material;
(4) sanding: sanding the primary mixed material in a sand mill for not less than 40 minutes to obtain slurry;
(5) stirring: and (3) putting the slurry into a proportioning cylinder, and uniformly stirring for not less than 20 minutes to obtain a finished product.
6. The preparation method of the ultrathin steel structure fireproof coating as claimed in claim 5, wherein the preparation method comprises the following steps: the high-speed dispersion time in the step (3) is 28 minutes.
7. The preparation method of the ultrathin steel structure fireproof coating as claimed in claim 5, wherein the preparation method comprises the following steps: and (4) the sand milling time in the step (4) is 50 minutes.
8. The preparation method of the ultrathin steel structure fireproof coating as claimed in claim 5, wherein the preparation method comprises the following steps: the stirring time in the step (5) is 35 minutes.
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| CN105885615A (en) * | 2016-05-16 | 2016-08-24 | 李军 | Building external wall fireproof coating and preparation method |
| CN107216747A (en) * | 2017-07-25 | 2017-09-29 | 合肥嘉仕诚能源科技有限公司 | A kind of nanometer technology protective coating of concrete steel structure and preparation method thereof |
| CN107955201B (en) * | 2017-11-30 | 2021-02-12 | 宁波多力浦工贸有限公司 | LED bulb lamp shell |
| CN107858068B (en) * | 2017-11-30 | 2020-04-24 | 宁波多力浦工贸有限公司 | LED fluorescent lamp shell |
| CN111286239A (en) * | 2020-03-18 | 2020-06-16 | 泉州联众工贸有限公司 | Solvent type intumescent fire-retardant coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1680501A (en) * | 2004-04-09 | 2005-10-12 | 中国科学院金属研究所 | Weather-resistant and fire-proof nanometer coating for expanding ultrathin steel structure and production thereof |
| CN103952067A (en) * | 2014-05-04 | 2014-07-30 | 南通市兴宇漆业有限责任公司 | Production process of oil alkyd baking varnish |
| CN103992705A (en) * | 2014-04-08 | 2014-08-20 | 王洪卫 | Outdoor ultrathin type steel structure water resistance and fireproof coating material and preparation method thereof |
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| DE3918906A1 (en) * | 1989-06-09 | 1990-12-13 | Henkel Kgaa | USE OF ACID-CURING AMINO RESINS AS BINDERS FOR JOINT FILLING MATERIALS |
| CN104559489A (en) * | 2015-01-05 | 2015-04-29 | 苏州金刚防火钢型材***有限公司 | Fireproof coating for door and window profiles and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1680501A (en) * | 2004-04-09 | 2005-10-12 | 中国科学院金属研究所 | Weather-resistant and fire-proof nanometer coating for expanding ultrathin steel structure and production thereof |
| CN103992705A (en) * | 2014-04-08 | 2014-08-20 | 王洪卫 | Outdoor ultrathin type steel structure water resistance and fireproof coating material and preparation method thereof |
| CN103952067A (en) * | 2014-05-04 | 2014-07-30 | 南通市兴宇漆业有限责任公司 | Production process of oil alkyd baking varnish |
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