CN101550294A - New use of white sugar used as carbonific in fire-proof paint and technics formula thereof - Google Patents
New use of white sugar used as carbonific in fire-proof paint and technics formula thereof Download PDFInfo
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- CN101550294A CN101550294A CNA200910043376XA CN200910043376A CN101550294A CN 101550294 A CN101550294 A CN 101550294A CN A200910043376X A CNA200910043376X A CN A200910043376XA CN 200910043376 A CN200910043376 A CN 200910043376A CN 101550294 A CN101550294 A CN 101550294A
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Abstract
The present invention relates to a new use of white sugar used as carbonific in fire-proof paint and technics formula thereof, belonging to flame retardant technology field. Adding the white sugar into fire-proof paint as carbonific for coating over the steel plate, which is used as fireproofing flame-proof coating. The particular application proportioning is: a polyurethane coating, each composition uses every 100 weight parts polyurethane as benchmark, adding ammonium polyphosphate 20-25 weight parts, white sugar 30-45 weight parts, urea 18-30 weight parts, dicyandiamide 6-15 weight parts, melamine 8-20 weight parts, OP-10 emulsifier 1-2 weight parts, rutile titanium dioxide 12-20 weight parts, light calcium carbonate 10-20 weight parts, dimethylbenzene 40-60 weight parts, anti-settling agent polyvinyl alcohol 2 parts, thickening agent hydroxymethyl cellulose 2 parts, organosilicon defoamer 2parts. The invention is provided with advantages of easy construction, good decoration, the carbon foam layer has preferable intensity and not easy to collapse, strong fire proofing capability, strong steel plate adhesive force. The white sugar can completely satisfy the request used as fire-proof paint carbonific, which can instead or partly instead expensive carbonific-pentaerythrite.
Description
Technical field
The present invention relates to a kind of new purposes and application art prescription thereof of white sugar, especially for the new purposes of frie retardant coating with char-forming agent, it has the effect of good formation foaming charcoal layer to meet the fire back, can play part and substitute more expensive char-forming agent---the purposes of tetramethylolmethane.Belong to the fire retardant technical field.
Technical background
Fire be the most common, threaten one of the major casualty of human life's safety and property safety the most continually.Along with the development of Chinese Urbanization, increasing people concentrates in the city, causes building more and more higher, and building density is increasing, makes difficulty increase that stamps out a fire and the time lengthening that stamps out a fire.And along with the raising of people's living standard, people are more and more abundanter to the decoration of building, in the process of finishing, inevitably need to use inflammable macromolecular material, as coating, sizing agent, plastic prod, so the possibility of presence of fire improves greatly.Such as occurring in the club fire in Shenzhen " dance king " on September 20th, 2008, cause 43 people's death, thing is because of being to perform the fireworks polyurethane foam top ceiling that ignited.Occur in the September 11 attacks of the U.S., the steel that the major reason that causes high building to collapse at last is to use do not carry out flameproof protection to be handled, and does not have the steel of flameproof protection only just to begin softening lost strength at 600 ℃, and building is collapsed.
Frie retardant coating can be widely used in fields such as the steel, modification face, cable, prestressed concrete floor slab, tunnel of buildings, and it can play fire-proof and thermal-insulation, reduce flame transmission speed, prevent effect such as fire spread diffusion.Frie retardant coating is non-expansion type frie retardant coating and expanding fire-proof paint according to the fire prevention formal classification.Volume change did not take place in coating basically when the non-expansion type frie retardant coating was met fire, formed glaze shape protective layer.This protective layer can play the effect of starvation to a certain extent, thereby avoids or delayed the generation of combustion reactions.But the glaze shape protective layer thermal conductivity that this class coating is generated is generally bigger, and heat-insulating efficiency is poor, therefore needs thicker coating just certain flameproof effect can be arranged.Even use thick coating, the effect of fire-proof and thermal-insulation are often also bad.Coating can be expanded foamed when chance fire or high temperature for expanding fire-proof paint, forms polymeric foam layer, and this foaming layer is being met under fire and the sour cases of dehydration, and the meeting charing forms the open-textured foaming charcoal layer that can prevent fires and can be heat insulation.Be thermo-negative reaction because volume enlarges in the process of the expanded foamed generation foam layer of coating, also consumed a large amount of heats, so expanding fire-proof paint fire-proof and thermal-insulation effect is remarkable.Because the required coat-thickness of expanding fire-proof paint is thin, fire-proof and thermal-insulation is effective, is the main flow of present frie retardant coating therefore.
For organic polymer type frie retardant coating, generally need comprise following four kinds of compositions: one, char-forming agent: need the high carbon content material, it dewaters under the high temperature of flame interaction, produce the coke three-D space structure of sufficient amount, can form suitable density and certain thickness carbonaceous foam layer, effectively play the effect of fire-proof and thermal-insulation.Two, dehydration carbonization catalyzer: under lower temperature, decompose, form the strongly-acid material, can impel the high-carbon quantity material at high temperature to decompose rapidly, form spongy carbonaceous layer, promote to generate non-flammable gases simultaneously.Three, whipping agent: at high temperature decompose generation in a large number as NH
3, CO
2, H
2Difficult to burn gases such as O, HCl and HBr, and make film forming macromolecule melt air bubble expansion, form pumiceous texture.Four, binding agent: in fact be generally the filmogen of frie retardant coating, it can closely bond together various components in the coating, and dry back forms tough and tensile coating, mechanical property and other performance that frie retardant coating is necessary.Binding agent changes thick melts into when high temperature, certain fluidity is arranged, and expands and form foam layer after the gas bubbling that the whipping agent decomposition produces passes thick melts.
Different service requirementss and use occasion, fire protection requirement are also different.The kind of expanding fire-proof paint and coating thickness are also different.The thickness of general coating is 0.2～3mm, meets 20～80 times of fiery afters, and promptly heat insulation distance has prolonged 20～80 times; From the variation of thermal conductivity, general coating thermal conductivity λ is 10
-4W/m
2.K the order of magnitude, and the charring layer λ after the foaming is 10
-5W/m
2.K the order of magnitude has promptly reduced about 10 times.The heat that is delivered to as can be known on the protecting materials according to heat transfer equation only is more than one percent of fire heat.
The effect of char-forming agent depends on the carbon content and the hydroxy number of char-forming agent on the one hand, also depends on the decomposition temperature of char-forming agent on the other hand.Wherein carbon content has determined its charing rate, and hydroxy radical content has determined its dehydration and formed foamy speed.The char-forming agent consumption should be an amount of, and consumption is too much, then suppresses the expansion height of charcoal foam layer, makes foaming charcoal layer compact structure, can not play good effect of heat insulation.But the char-forming agent consumption is very few, then is unfavorable for forming complete charcoal foam layer, thereby does not reach the purpose of fire-proof and thermal-insulation.Char-forming agent generally has the carbon content height but the slow characteristic of carbonization reaction preferably.
At present, main char-forming agent is tetramethylolmethane, glycerol and polyvinyl alcohol.Tetramethylolmethane is a tetravalent alcohol that contains 4 primary hydroxyls, is white crystals, and molecular formula is C
6H
12O
4, pure tetramethylolmethane fusing point is 263 ℃, and carbon content is 44%, and hydroxy radical content is 50%, and it is a kind of fusing point height, efficient height, uses char-forming agent widely, but the cost height.Glycerol claims glycerine again, is colourless, transparent, odorless, nontoxic thick liquid, and molecular formula is C3H8O3, and glycerol has water absorbability, and glycerol is used for the effect that frie retardant coating can play char-forming agent.The glycerol carbon content is 39%, and hydroxy radical content is 55%, be mainly used in transparency swelling type frie retardant coating, but its fusing point is low excessively, oozes out easily.Polyvinyl alcohol is a kind of macromolecular material, and main chain is-C-C-that side group contains hydroxyl, also can do char-forming agent in coating, but becomes charcoal efficient relatively low.
Summary of the invention
The objective of the invention is to propose a kind of new purposes and technical recipe thereof of white sugar, promptly as the novel char-forming agent in the frie retardant coating.This char-forming agent has cheapness, advantage such as nontoxic, efficient, and effect is near tetramethylolmethane, but price only is equivalent to 30% of tetramethylolmethane, can be used for part and replace tetramethylolmethane.
Technical scheme of the present invention realizes by following approach, it be with white sugar as char-forming agent, join in the frie retardant coating, play the effect of char-forming agent.
The concrete proportioning of using is: a kind of polyurethane coating, each constituent is a benchmark according to per 100 weight part urethane, add ammonium polyphosphate 20～25 weight parts, white sugar 30～45 weight parts, urea 18～30 weight parts, Dyhard RU 100 6～15 weight parts, trimeric cyanamide 8～20 weight parts, OP-10 emulsifying agent 1～2 weight part, rutile titanium dioxide 12～20 weight parts, light calcium carbonate (600 order) 10～20 weight parts, dimethylbenzene 40～60 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.
According to frie retardant coating that above technical scheme is done, have easy construction, the charcoal layer of decorating, foam has preferably that intensity is difficult for caving in, fire resistance property strong, with advantages such as the steel plate adhesive power is strong.White sugar can satisfy the requirement of frie retardant coating char-forming agent fully as char-forming agent, can replace or part replaces expensive char-forming agent---tetramethylolmethane.
Embodiment
Specifically describe the specific embodiment of the present invention below.
The present invention be with white sugar as char-forming agent, join in the frie retardant coating, play the effect of char-forming agent, be used to be coated in the fireproof flame-retardant coating on the steel plate.
White sugar is the disaccharide of the irreducibility that formed by each molecule dehydrating condensation of glucose and fructose, molecular formula is C12H22O11, the white sugar carbon content is 42%, hydroxy radical content is 55%, white sugar is heated to 160 ℃, just be melted into dense thick transparent liquid, under high temperature and acid effect, white sugar easily dewaters and forms the coke layer with three-D space structure.Therefore, theoretically, white sugar has good one-tenth charcoal effect.
The concrete proportioning of using is: be example with the polyurethane coating, each constituent is a benchmark according to per 100 weight part urethane, add ammonium polyphosphate 20～25 weight parts, white sugar 30～45 weight parts, urea 18～30 weight parts, Dyhard RU 100 6～15 weight parts, trimeric cyanamide 8～20 weight parts, OP-10 emulsifying agent 1～2 weight part, rutile titanium dioxide 12～20 weight parts, light calcium carbonate (600 order) 10～20 weight parts, dimethylbenzene 40～60 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.
Production technique is for pressing prescription with polyurethane coating and fire-retardant used additives, be that ammonium polyphosphate, white sugar, urea, Dyhard RU 100, trimeric cyanamide, dimethylbenzene, rutile titanium dioxide, light calcium carbonate, polyvinyl alcohol, Walocel MT 20.000PV, defoamer are mixed in the container for stirring machine and stir evenly, abundant mixing during use, be applied on the steel plate, can obtain intumescent coating.
Use spraying coating process with this paint spay-coating on the steel plate after polishing, the oil removing.Coat-thickness is 1～3mm, and the fire endurance time is 0.5～1.4 hour.This frie retardant coating is in 8 hours at 25 ℃ of following surface drying times; In water, soak 24 hours coatings and do not have aliquation, foaming, obscission; 16 coatings of cold-resistant thermal cycling do not have cracking, foaming, obscission; Meet fire back coating foaming and intumescing, foaming charcoal layer expansion multiplying power is 35～60 times.
Frie retardant coating according to above technical scheme proposes is sprayed on the steel plate of handling well at normal temperatures.Need repeatedly spraying when needing thick fire prevention to film, treat to spray again behind the coating surface drying at every turn.
With polyurethane fireproof coating is example.
Embodiment 1:
According to per 100 weight part urethane, add ammonium polyphosphate 22 weight parts, white sugar 30 weight parts, urea 18 weight parts, Dyhard RU 100 6 weight parts, trimeric cyanamide 15 weight parts, OP-10 emulsifying agent 1 weight part, rutile titanium dioxide 12 weight parts, light calcium carbonate (600 order) 18 weight parts, dimethylbenzene 40 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.Prepare frie retardant coating by processing requirement, coat-thickness is 1.6mm, and fire endurance is 42 minutes.
Embodiment 2:
According to per 100 weight part urethane, add ammonium polyphosphate 25 weight parts, white sugar 40 weight parts, urea 21 weight parts, Dyhard RU 100 8 weight parts, trimeric cyanamide 10 weight parts, OP-10 emulsifying agent 1 weight part, rutile titanium dioxide 14 weight parts, light calcium carbonate (600 order) 10 weight parts, dimethylbenzene 52 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.Prepare frie retardant coating by processing requirement, coat-thickness is 2.0mm, and fire endurance is 51 minutes.
Embodiment 3:
According to per 100 weight part urethane, add ammonium polyphosphate 20 weight parts, white sugar 36 weight parts, urea 27 weight parts, Dyhard RU 100 6 weight parts, trimeric cyanamide 8 weight parts, OP-10 emulsifying agent 1 weight part, rutile titanium dioxide 12 weight parts, light calcium carbonate (600 order) 20 weight parts, dimethylbenzene 48 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.Prepare frie retardant coating by processing requirement, coat-thickness is 1.0mm, and fire endurance is 32 minutes.
Embodiment 4:
According to per 100 weight part urethane, add ammonium polyphosphate 25 weight parts, white sugar 45 weight parts, urea 18 weight parts, Dyhard RU 100 15 weight parts, trimeric cyanamide 18 weight parts, OP-10 emulsifying agent 2 weight parts, rutile titanium dioxide 14 weight parts, light calcium carbonate (600 order) 10 weight parts, dimethylbenzene 60 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.Prepare frie retardant coating by processing requirement, coat-thickness is 3.0mm, and fire endurance is 62 minutes.
Embodiment 5:
According to per 100 weight part urethane, add ammonium polyphosphate 25 weight parts, white sugar 45 weight parts, urea 22 weight parts, Dyhard RU 100 9 weight parts, trimeric cyanamide 12 weight parts, OP-10 emulsifying agent 1.5 weight parts, rutile titanium dioxide 12 weight parts, light calcium carbonate (600 order) 20 weight parts, dimethylbenzene 50 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.Prepare frie retardant coating by processing requirement, coat-thickness is 3.0mm, and fire endurance is 64 minutes.
Embodiment 6:
According to per 100 weight part urethane, add ammonium polyphosphate 24 weight parts, white sugar 38 weight parts, urea 20 weight parts, Dyhard RU 100 15 weight parts, trimeric cyanamide 20 weight parts, OP-10 emulsifying agent 2 weight parts, rutile titanium dioxide 20 weight parts, light calcium carbonate (600 order) 10 weight parts, dimethylbenzene 55 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.Prepare frie retardant coating by processing requirement, coat-thickness is 2.0mm, and fire endurance is 51 minutes.
Embodiment 7:
According to per 100 weight part urethane, add ammonium polyphosphate 20 weight parts, white sugar 30 weight parts, urea 18 weight parts, Dyhard RU 100 7 weight parts, trimeric cyanamide 8 weight parts, OP-10 emulsifying agent 1 weight part, rutile titanium dioxide 14 weight parts, light calcium carbonate (600 order) 10 weight parts, dimethylbenzene 48 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.Prepare frie retardant coating by processing requirement, coat-thickness is 2.0mm, and fire endurance is 44 minutes.
Claims (3)
1, a kind of white sugar is characterized in that as the new purposes of char-forming agent in the frie retardant coating white sugar can be used as char-forming agent, joins in the frie retardant coating, plays the effect of char-forming agent.
2, a kind of realization as the new purposes of a kind of white sugar according to claim 1 as char-forming agent in the frie retardant coating, the application prescription that it is characterized in that it is: a kind of polyurethane coating, each constituent is a benchmark according to per 100 weight part urethane, add ammonium polyphosphate 20～25 weight parts, white sugar 30～45 weight parts, urea 18～30 weight parts, Dyhard RU 100 6～15 weight parts, trimeric cyanamide 8～20 weight parts, OP-10 emulsifying agent 1～2 weight part, rutile titanium dioxide 12～20 weight parts, light calcium carbonate 10～20 weight parts, dimethylbenzene 40～60 weight parts, 2 parts of anti-settling agent polyvinyl alcohol, 2 parts of thickening material Walocel MT 20.000PVs, 2 parts of silicone antifoam agents.
3, a kind of realization as the new purposes of a kind of white sugar according to claim 1 as char-forming agent in the frie retardant coating, it is characterized in that: its application art is to be mixed in the container for stirring machine according to the component that the described prescription of claim 2 obtains to stir evenly, send in the ball mill then and mill, after being ground to the fineness of regulation this slip is changed in the mixed cylinder, abundant mixing during use, be applied on the steel plate, can obtain intumescent coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910043376XA CN101550294A (en) | 2009-05-13 | 2009-05-13 | New use of white sugar used as carbonific in fire-proof paint and technics formula thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910043376XA CN101550294A (en) | 2009-05-13 | 2009-05-13 | New use of white sugar used as carbonific in fire-proof paint and technics formula thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496932A (en) * | 2013-09-25 | 2014-01-08 | 广西科技大学 | Inorganic special historic building wall coating adopting flyash and preparation method thereof |
| CN103992731A (en) * | 2014-05-19 | 2014-08-20 | 安徽嘉木橡塑工业有限公司 | Expansive type polyurethane fire retardant coating |
| CN106698415A (en) * | 2016-12-29 | 2017-05-24 | 陈大明 | High-strength carbon foam (CF) material and preparation method thereof |
| CN109111936A (en) * | 2018-08-01 | 2019-01-01 | 湖南工业大学 | A kind of charcoal and preparation method thereof of evaporation processing in situ |
| CN114591676A (en) * | 2022-02-23 | 2022-06-07 | 国网安徽省电力有限公司电力科学研究院 | Polyurethane flame-retardant paint for electric fire-fighting equipment and preparation method and application thereof |
| CN114686094A (en) * | 2022-02-23 | 2022-07-01 | 国网安徽省电力有限公司电力科学研究院 | Intumescent flame retardant compounded two-dimensional nanosheet polyurethane flame-retardant paint and preparation method and application thereof |
| CN114686093A (en) * | 2022-02-23 | 2022-07-01 | 国网安徽省电力有限公司电力科学研究院 | Polyurethane anticorrosive paint for electric fire-fighting equipment and preparation method and application thereof |
| CN114686095A (en) * | 2022-02-23 | 2022-07-01 | 国网安徽省电力有限公司电力科学研究院 | Anti-aging polyurethane flame-retardant paint for electric fire-fighting equipment and preparation method and application thereof |
-
2009
- 2009-05-13 CN CNA200910043376XA patent/CN101550294A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496932A (en) * | 2013-09-25 | 2014-01-08 | 广西科技大学 | Inorganic special historic building wall coating adopting flyash and preparation method thereof |
| CN103496932B (en) * | 2013-09-25 | 2015-06-17 | 广西科技大学 | Inorganic special historic building wall coating adopting flyash and preparation method thereof |
| CN103992731A (en) * | 2014-05-19 | 2014-08-20 | 安徽嘉木橡塑工业有限公司 | Expansive type polyurethane fire retardant coating |
| CN106698415A (en) * | 2016-12-29 | 2017-05-24 | 陈大明 | High-strength carbon foam (CF) material and preparation method thereof |
| CN109111936A (en) * | 2018-08-01 | 2019-01-01 | 湖南工业大学 | A kind of charcoal and preparation method thereof of evaporation processing in situ |
| CN114591676A (en) * | 2022-02-23 | 2022-06-07 | 国网安徽省电力有限公司电力科学研究院 | Polyurethane flame-retardant paint for electric fire-fighting equipment and preparation method and application thereof |
| CN114686094A (en) * | 2022-02-23 | 2022-07-01 | 国网安徽省电力有限公司电力科学研究院 | Intumescent flame retardant compounded two-dimensional nanosheet polyurethane flame-retardant paint and preparation method and application thereof |
| CN114686093A (en) * | 2022-02-23 | 2022-07-01 | 国网安徽省电力有限公司电力科学研究院 | Polyurethane anticorrosive paint for electric fire-fighting equipment and preparation method and application thereof |
| CN114686095A (en) * | 2022-02-23 | 2022-07-01 | 国网安徽省电力有限公司电力科学研究院 | Anti-aging polyurethane flame-retardant paint for electric fire-fighting equipment and preparation method and application thereof |
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Application publication date: 20091007 |