CN1063469C - Fire-retardant coating composition - Google Patents
Fire-retardant coating composition Download PDFInfo
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- CN1063469C CN1063469C CN93101566A CN93101566A CN1063469C CN 1063469 C CN1063469 C CN 1063469C CN 93101566 A CN93101566 A CN 93101566A CN 93101566 A CN93101566 A CN 93101566A CN 1063469 C CN1063469 C CN 1063469C
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- coating composition
- vermiculite
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- fire
- clay
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Abstract
The present invention relates to a fireproof paint composition which comprises Portland cement, shelled vermiculite, fibrous material, and a spacing auxiliary binding agent for enhancing the adhesiveness of the composition, wherein the spacing auxiliary binding agent is made of clay, such as pottery clay or bentonitic clay, and other proper spacing auxiliary binding agents are talc, calcium sulphate and calcium carbonate; the spacing auxiliary binding agent can be singly or compositely used.
Description
The present invention relates to a kind of fire-retardant coating composition that contains the concrete material, particularly relate to a kind of fire-retardant coating composition, it is except that containing the concrete joint mixture, still contain lining every assist in engagement agent (spacing cobinder), for example be in the nature clay (clay), talcum (talc), the calcium sulfate (CaSO of potter's clay (kaolin) or wilkinite (bentonite)
4) and lime carbonate (CaCO
3).
The inorganic fireproof coating composition generally contains fiber, vermiculite (vermicu-lite), and adhesive material.For example, Britain's mat woven of fine bamboo strips 2,063, the 846A patent once disclosed a kind of do not contain asbestos (asbestos) can not the burning coating material composition, it includes vermiculite (exfoliated vermiculite), Portland cement (po-rtland cement) and water-soluble thickener (thickener) that layer shell peels off, and mica (mica).No. 3719513 patent of the U.S. then once disclosed a kind of spumescence gypsum compositions (sprayable gypsum plaster com-position), it includes roasting gypsum (calcined gypsum), fibril fiber (cellulosicfiber) air is taken from agent (air-entrainingagent), and the lightweight grumeleuse (aggregate) of vermiculite for example.
Vermiculite is a kind of splendid heat insulating ability material, and therefore, the amount that coating composition contains vermiculite the more more can effectively be strengthened the heat-resistant quality of coating.Can take from agent in order to the air that produces air pocket (air traP) and also often be added in the inorganic fireproof coating composition, reducing its total body density, and increase its heat-stable characteristic by this.Portland cement is a kind of joint compound, and it can hardening after drying, and can or be used as the section of being coated with by die casting and apply from the teeth outwards.Because Portland cement has high pH value and metal do not had corrodibility, so in its preferable fire-retardant coating composition that can be used in bar construction.Yet Portland cement can't be effectively in conjunction with a large amount of vermiculite particle and fiber, particularly takes from agent when air also to be used in when interior.And if the used amount of vermiculite and fiber is limited,, and lowered the fp effect just then the embrittlement of final frie retardant coating has the tendency of increase.Another uses the root problem that Portland cement had, and then is the be full of cracks that its excessive shrinkage character regular meeting when drying causes final coating finished product.Because these problems, therefore unlikely make usually contain with the Portland cement be joint compound and except that fiber, more contain a large amount of vermiculites-especially have greater particle size-the flame-proof finishing material.Japanese Patent openly once advised using the extra stickiness material of a kind of for example water glass (Nasilicate) for communique 49-74280 number in containing concrete frie retardant coating.Yet this coating also is not suitable in the structural girder steel.
One object of the present invention is in the aforementioned fundamental issue that alleviates in fire-retardant material when using Portland cement as joint compound.
Another object of the present invention then is to propose a kind of novel prescription for fire-retardant coating composition, though make it contain Portland cement as joint compound, yet still can allow in composition to add vermiculite, the fiber of essence volume, with and/or air take from agent, and can not cause be full of cracks.
Fire-retardant coating composition according to the present invention includes vermiculite, the 1-20 weight % fibrous material that 20-36 weight % Portland cement, 20-60 weight % layer shell peel off, and 5-60 weight % strengthens the lining of composition viscosity every the assist in engagement agent.Wherein serve as a contrast every the assist in engagement agent preferable with clay, for example potter's clay (similarly being the ceramic clay of colors such as white, ash or palm fibre) or wilkinite.Other suitable linings can be calcium sulfate, lime carbonate and talcum every the assist in engagement agent.Above-mentioned lining can separately or be used in combination every the assist in engagement agent.
The present invention is based on following discovery, promptly when lining every the assist in engagement agent add to contain Portland cement as the fire-retardant coating composition of joint compound in the time, vermiculite and fibrous particle can even be combined effectively with quite high amount." lining is every the assist in engagement agent " speech is meant a kind of low density and is the joint compound of fines shape, when in order to the time as concrete assist in engagement agent, its particle can provide a kind of lining every effect between the concrete particle, thereby reduces the cross-linking density and the fragility (brittleness) of composition.This lining also can promote the tackiness of vermiculite and fibrous particle every the assist in engagement agent, and reduces the total body density of composition.Make the tackiness acquisition reinforcement of vermiculite and fibrous particle owing to the existence of assist in engagement agent, therefore can increase the physical strength of coating and make more that the vermiculite and the fibrous particle of volume can be combined in the composition effectively, and then improve the refractory properties of coating composition.In addition, concrete cross-linking density reduces its setting time that can extend, and makes the chance that produces be full of cracks reduce to minimum.In composition, add lining and can be 5～60 parts of weight based on the coating composition all wts every the amount of assist in engagement agent.Lining is preferably 0.1～100 μ m every the particle diameter of assist in engagement agent, and its density then is about 0.1 to 5g/Cm
3
Can contain with the coating composition gross weight according to coating composition of the present invention is tool " fine level (grade fine) " particle (about 2～4mm) the layer shell exfoliated vermiculite of 20～60 parts of weight of benchmark.Generally speaking, in containing the fire-retardant coating composition of concrete as joint compound, when it combined with fiber, the amount of vermiculite (fine level) was no more than 25 parts of weight.In the present invention, the size of particles of vermiculite is not restricted, and need particularly to be not limited to the superfine particle.Generally, suitable particle diameter is less than 8.00mm.
Then can be the organic or inorganic fiber as for fibrous material, and the amount that it added is then for being 1-20 part weight of benchmark with the coating composition gross weight.Except aforementioned all compositions, still can add an air and take from agent to coating composition, to reduce its total body density and to promote fire-resistant effect.
The following embodiment that proposes is used for demonstrating coating composition of the present invention, but not desire is done unsuitable restriction to its general general scope.In each embodiment, except as otherwise noted, otherwise all umbers are all with weight be as the criterion (embodiment 1)
The vermiculite that 101 parts of Portland cements, 129 parts of layer shells peel off, 21 parts of potter's clay, 28 parts of asbestos (LaPinus Fibres) also have the air of selling with trade name Mighty AE-03 (Kao Co.) to take from 1.4 parts of agent and are mixed the formation mixture.In mixture, add the water of 1.4 times of (folds) weight to form a coating composition.Coating composition is sprayed on the reinforcing bar of building materials.After the drying, its surface observation is less than any crack performance, and it presents powerful compressive strength (compressive stre-ngth, 9880 lb/ft
2).The character of this coating is shown in table 1.(embodiment 2)
55.1 part Portland cement, 86 parts of vermiculite, 19 parts of potter's clay, 10.9 parts of talcums, 19 parts of asbestos that layer shell peels off also have the air of selling with trade name Mighty AE-03 (Kao Co.) to take from 0.95 part of agent and are mixed the formation mixture.In mixture, add the water of 1.4 times of weight to form a coating composition.Coating composition is sprayed on the reinforcing bar of building materials.After the drying, its surface observation is less than any crack performance, and it presents powerful compressive strength (8910 lb/ft
2).The character of this coating is shown in table 1.(embodiment 3)
115 parts of Portland cements, 193 parts of vermiculite, 48.3 parts of potter's clay, 55 parts of lime carbonate, 46 parts of asbestos that layer shell peels off also have the air of selling with trade name Mighty AE-03 (Kao Co.) to take from 2.3 parts of agent and are mixed the formation mixture.In mixture, add the water of 1.4 times of weight to form a coating composition.Coating composition is sprayed on the reinforcing bar of building materials.After the drying, its surface observation is less than any crack performance, and it presents powerful compressive strength (7320 lb/ft
2).The character of this coating is shown in table 1.(embodiment 4)
64.4 the vermiculite that part Portland cement, 101 parts of layer shells peel off, 13.8 parts of calcium sulfate, 1.5 parts of potter's clay, 27.6 parts of asbestos, 6.9 parts of Mierocrystalline celluloses (cellu-lose) also have the air of selling with trade name Mighty AE-03 (Kao Co.) to take from 1.1 parts of agent and are mixed the formation mixture.In mixture, add the water of 1.4 times of weight to form a coating composition.Coating composition is sprayed on the reinforcing bar of building materials.(do not peel off in 8 hours) after the drying, its surface observation is less than any crack performance, and it presents powerful compressive strength (8470 lb/ft
2).The character of this coating is shown in table 1.(embodiment 5)
86 parts of Portland cements, 219 parts of vermiculite, 80 parts of calcium sulfate, 37 parts of asbestos that layer shell peels off also have the air of selling with trade name Mighty AE-03 (Kao Co.) to take from 1.9 parts of agent and are mixed the formation mixture.In mixture, add 1.4 times of weight forever to form a coating composition.Coating composition is sprayed on the reinforcing bar of building materials.(do not peel off in 8 hours) after the drying, its surface observation is less than any crack performance, and it presents powerful compressive strength (4700 lb/ft
2).The character of this coating is shown in table 1.(embodiment 6) (contrast)
84.5 part Portland cement, 32 parts of vermiculite, 13 parts of asbestos that layer shell peels off also have the air of selling with trade name Mightr AE-03 (Kao Co.) to take from 0.6 part of agent and are mixed the formation mixture.In mixture, add the water of 1.4 times of weight to form a coating composition.Coating composition is sprayed on the reinforcing bar of building materials.(do not peel off in 3 hours) after the drying, its surface observation is less than any crack performance, and it presents very powerful compressive strength (12850 lb/ft
2).The character of this coating is shown in table 1.Obviously, its fire resistance property obviously reduces.(embodiment 7) (contrast)
130 parts of Portland cements, 95 parts of vermiculite, 25 parts of asbestos that layer shell peels off also have the air of selling with trade name Mighty AE-03 (Kao Co.) to take from 1.2 parts of agent and are mixed the formation mixture.In mixture, add the water of 1.4 times of weight to form a coating composition.Coating composition is sprayed on the reinforcing bar of building materials.After its drying, its surface is Powdered.The compressive strength of this embodiment is lower than 100 lb/ft
2This embodiment does not make flame test.
Can be found out that by the result shown in the table 1 embodiment 1～5 shows high resistivity against fire (its outlet temperature is low), embodiment 6～7 then reaches a high temperature after burning.The compressive strength of embodiment 1～5 is high and crack performance do not take place.Can further learn with reference to comparative examples 6～7, when the amount of vermiculite is 24%, can forms one and have the viscous coating of high compression-strength and do not chap, and when its amount increased to 38% and 46%, coatingsurface was Powdered and shows that the viscosity of coating is low.From these results, the conclusion that can get is, when not using lining every the assist in engagement agent, the consumption increase of vermiculite will cause compressive strength and adhesive reduction, and, when the consumption of vermiculite was identical, according to coating composition of the present invention (embodiment 1～5), its physical strength and refractory properties were apparently higher than not containing the composition of the selected lining of with good grounds the present invention every the assist in engagement agent.
With reference to embodiments of the invention 4 and 5 and comparative examples 6, amount when Portland cement there is no significantly not simultaneously as can be known, the amount of the vermiculite among the embodiment 4 and 5 quite is higher than embodiment 6, and do not peel off the phase (the tacKfree time) of embodiment 4 and 5 also grows than embodiment 6, so the coating again (recoatability) of embodiment 4 and 5 is also more excellent.Sum up, when using lining every the assist in engagement agent, the time of coating solidification can increase.
The rerum natura of table 1 embodiment 1～7 product and fire prevention character
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | |
| Compressive strength (lb/ft 2) | 9880 | 8910 | 7320 | 8470 | 4700 | 12850 | 92 |
| Outward appearance | By force | By force | By force | By force | By force | By force | Powdered |
| Outlet temperature after the burning | 518℃ | 530℃ | 502℃ | 506℃ | 502℃ | 930℃ | 716℃ |
| Vermiculite accounts for the per-cent of gross weight | 46 | 45 | 42 | 44 | 46 | 24 | 38 |
*The product of each embodiment is that the thickness with 45mm is coated on H section steel beam (W8 * 28), its also burning 3 hours in 1100 ℃ stove.
Claims (4)
1. fire-retardant coating composition, it is characterized in that, said composition includes vermiculite, the 1-20 weight % fibrous material that 20-36 weight % Portland cement, 20-60 weight % layer shell peel off, and 5-60 weight % strengthens the lining of composition viscosity every the assist in engagement agent.
2. fire-retardant coating composition as claimed in claim 1 is characterized in that, lining is a clay every the assist in engagement agent.
3. fire-retardant coating composition as claimed in claim 1 is characterized in that, is potter's clay or wilkinite as lining every the clay of assist in engagement agent.
4. fire-retardant coating composition as claimed in claim 1 is characterized in that, lining is to be selected from the monoid of being made up of talcum, calcium sulfate and lime carbonate every the assist in engagement agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93101566A CN1063469C (en) | 1993-02-25 | 1993-02-25 | Fire-retardant coating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93101566A CN1063469C (en) | 1993-02-25 | 1993-02-25 | Fire-retardant coating composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1091445A CN1091445A (en) | 1994-08-31 |
| CN1063469C true CN1063469C (en) | 2001-03-21 |
Family
ID=4983651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93101566A Expired - Fee Related CN1063469C (en) | 1993-02-25 | 1993-02-25 | Fire-retardant coating composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1063469C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0144583B1 (en) * | 1995-05-20 | 1998-07-15 | 손연호 | Coating composition for refractory and sound-absorbing and manufacturing method thereof |
| US8563139B2 (en) * | 2008-04-22 | 2013-10-22 | United States Gypsum Company | Non-hydrating plaster composition and method |
| US10427978B2 (en) * | 2008-04-22 | 2019-10-01 | United States Gypsum Company | Coated building panels and articles containing calcium sulfate hemihydrate |
| WO2014011303A2 (en) | 2012-04-20 | 2014-01-16 | Board Of Regents, The University Of Texas System | Thermal barrier mixtures and uses thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2167073A (en) * | 1984-11-09 | 1986-05-21 | Ronald Powell | Soluble alkali silicate based moulding and coating compositions |
| EP0461821A1 (en) * | 1990-06-11 | 1991-12-18 | W.R. Grace & Co.-Conn. | Sprayable fireproofing composition |
-
1993
- 1993-02-25 CN CN93101566A patent/CN1063469C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2167073A (en) * | 1984-11-09 | 1986-05-21 | Ronald Powell | Soluble alkali silicate based moulding and coating compositions |
| EP0461821A1 (en) * | 1990-06-11 | 1991-12-18 | W.R. Grace & Co.-Conn. | Sprayable fireproofing composition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1091445A (en) | 1994-08-31 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010321 Termination date: 20120225 |