CN102061119A - Solvent-free epoxy resin fire-resistant coating for ultrathin steel structure - Google Patents
Solvent-free epoxy resin fire-resistant coating for ultrathin steel structure Download PDFInfo
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- CN102061119A CN102061119A CN2009102381416A CN200910238141A CN102061119A CN 102061119 A CN102061119 A CN 102061119A CN 2009102381416 A CN2009102381416 A CN 2009102381416A CN 200910238141 A CN200910238141 A CN 200910238141A CN 102061119 A CN102061119 A CN 102061119A
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Abstract
The invention provides a solvent-free epoxy resin fire-resistant coating for an ultrathin steel structure, which comprises the following components in part by mass: 30 to 50 parts of solvent-free epoxy resin, 30 to 50 parts of inflame retarding system, 5 to 10 parts of titanium white, 5 to 8 parts of zinc borate, 1 to 3 parts of expanded graphite, 0.1 to 1 part of smoke inhibitor and 0.5 to 2.0 parts of various aids, wherein the inflame retarding system is a complex system of melamine, pentaerythritol and ammonium polyphosphate in a ratio of 1:3:2 or 1:3:1 or 2:3:1. The solvent-free epoxy resin fire-resistant coating has the advantages that: (1) the coating technology of solvent-free epoxy resin terrace is applied to the fire-resistant coating for the ultrathin steel structure, so that the fire-resistant coating for the ultrathin steel structure has the advantage of epoxy coatings and properties of fire prevention; (2) the fire-resistant coating for the ultrathin steel structure has the characteristic of environmental protection; (3) the coatings have high matching performance and can be better compatible with epoxy zinc-rich anticorrosion primers; and (4) the fire-resistant coating has high bonding strength which is more than or equal to 1.5 MPa, and has the characteristics of water prevention, corrosion prevention, high surface decoration and the like.
Description
Technical field
The present invention relates to a kind of solvent-free epoxy resin super-thin steel structure frie retardant coating, the solvent-free epoxy resin super-thin steel structure frie retardant coating of a kind of direct spraying specifically, its solvent-free epoxy resin is different from aqueous epoxy resins and solvent epoxy varnish.
Background technology
Steel construction with its intensity height, light weight, and has characteristics such as favorable extensibility, shock resistance and short construction period as a kind of form of building structure, is used widely in construction industry.But because steel construction self does not fire, the fire-proof and thermal-insulation protection problem of steel construction was once once ignored by people.Test and statistical figure according to domestic and international pertinent data report and appropriate authority show that the fire performance of steel building is poor than masonry structure and skeleton construction.The physical strength of steel reduces with the rising of temperature, about 500 ℃, and its strength degradation to 40%～50%, the mechanical property of steel, all descend rapidly such as yield-point, ultimate compression strength, Young's modulus and weight bearing power etc., lose supporting capacity very soon, cause buildings to collapse.Therefore; it is imperative that steel construction is protected, and steel structure fire-proof paint is brushed or is sprayed on the steel construction surface, can play the fire-proof and thermal-insulation effect; prevent that steel from heating up rapidly and reduce intensity in fire, avoid steel construction to lose supporting capacity and cause buildings to collapse.
Steel structure fire-proof paint is divided into thick type, slim, super-thin steel structure fire-proof paint by thickness; Be divided into solvent-borne type, water-based and Powdered steel structure fire-proof paint by the solvent that uses, super-thin steel structure fire-proof paint has obtained using widely in the steel construction fire protection because quality is low weight, little, the fire prevention efficient height of taking up space, have characteristics such as ornamental.Lot of domestic and international expert has carried out the research work of this respect.Liu state admires and waits the people to adopt three kinds of nano materials: nano-TiO
2, nanometer SiO
2With nanometer B
2O
3Be applied in the modification of steel structure fire-proof paint, finding to use nano-material modified steel structure fire-proof paint fire performance and water resistance all to have in various degree improves, wherein nano TiO 2 modification steel structure fire-proof paint effect is best, its fire endurance rose to 102 minutes by 96 minutes, and increase rate is 6.25%; Water tolerance was brought up to 33 hours by 28 hours, and increase rate is 17.9%.Qin Wenqing people such as (patent documentation CN1208409C) is resin base with the modification acrylate, adopting APP-PER-MN (ammonium polyphosphate-tetramethylolmethane-trimeric cyanamide) is flame-retardant system, developed expansion steel-structure fireproofing coating, its coat-thickness is 1.71～2.69mm, and fire endurance can reach 69～147 minutes.People such as Zhenyu Wang adopt nanometer SiO2 acrylic resin modified, are applied in APP-DPER-MN (ammonium polyphosphate-dipentaerythritol-trimeric cyanamide) coating, compare with unmodified coating, and its oxygen index LOI brings up to 33.0% from 29.0%; Fire resistance period extended to 111 minutes in 87 minutes when coat-thickness was 1.0mm; The carbon residue amount is 55.21% in the time of 1000 ℃, and carbon residue only is 50% during 438 ℃ of unmodified coating.People such as Jun-wei Gu are film-forming resin with unsaturated polyester and Resins, epoxy, APP-PER-MN (ammonium polyphosphate-tetramethylolmethane-trimeric cyanamide) is a flame-retardant system, add expanded graphite and make synergist, TiO2 is inorganic thermal insulating filling, has prepared the swelling of wood anti-flaming dope of physical and chemical performance excellence; When coat-thickness reached 2.0mm, fire resistance period can reach 210 minutes.
In the steel structure fire-proof paint, M.Jimenez utilizes thermosetting epoxy resin to be film-forming resin abroad, adds fire retardant boric acid and APP derivative and has prepared intumescent fire-retardant coating material.When coat-thickness was 3.5mm, the warm time that reaches 400 ℃ of the back of the body was 29.4 minutes, reached 400 ℃ 4 minutes time than not fire-retardant coating back of the body temperature, had prolonged 25.4 minutes; The thermogravimetic analysis (TGA) test points out that flame retardant coating carbon residue amount is 35% in the time of 800 ℃, and the degraded fully when temperature reaches 600 ℃ of not fire-retardant coating.
Solventless epoxy resin coating is as a kind of volatile organic solvent, high liquid high-performance environment friendly coating of solids content of not containing, greatly reduce the possibility of solvent hold-up, chronic evaporable material is few after film forming, and the guarantee of the Air quality of enclosed space is provided may.It also has good flowing properties, cohesive strength height, characteristics such as physical strength height simultaneously.And Resins, epoxy has closure preferably, has certain waterproof and rot-resistant function.It is water-base epoxy ester emulsion and solvent type Resins, epoxy mostly that epoxy systems adopts, and does not see so far solvent-free epoxy resin applied in the super-thin steel structure frie retardant coating and reports.
Summary of the invention
The invention provides a kind of solvent-free epoxy resin super-thin steel structure frie retardant coating, it is different from solvent-borne type or aqueous epoxy resins; It is that solvent-free epoxy resin terrace paint technology is used in the steel structure fire-proof paint, has that cohesive strength height, closure are good, water-tolerant, has that certain preservative efficacy, surface capable of decoratively are strong, flame-retardant composition can not moved to characteristics such as coatingsurface.
A kind of solvent-free epoxy resin super-thin steel structure frie retardant coating of the present invention comprises the content of following component and mass fraction:
Component 1: 30～50 parts of solvent-free epoxy resins
Component 2: 5～10 parts of titanium dioxides
Component 3: 5～8 parts of zinc borates
Component 4: 1～3 part of expansible black lead
Component 5: press down 0.1～1 part of fumicants
Component 6: 30～50 parts of flame-retardant systems
Component 7: 0.5～2.0 part of auxiliary agent.
In the such scheme, described solvent-free epoxy resin is divided into Resins, epoxy A component and solidifying agent B component, and the proportioning of A component and B component is 4: 1, and 3: 1,3.75: 1, or 2: 1.According to surface drying time, viscosity and the performance requriements of coating can be suitable change Resins, epoxy A component and the proportioning of solidifying agent B.Described Resins, epoxy A component is an E44 Resins, epoxy, and solidifying agent B component is the amine curing agent of modification, and its optimum ratio is 3.75: 1.
In the such scheme, described flame-retardant system adopts ultrapas, tetramethylolmethane, ammonium polyphosphate compound system, and its proportioning is 1: 3: 2, and 1: 3: 1, or 2: 3: 1.Its optimum ratio is 1: 3: 2, and wherein the polymerization degree of ammonium polyphosphate is greater than 1000.
In the such scheme, but described fumicants is molybdenum sesquioxide or molybdate.Described expansible black lead adopts flakey, and its length is between 0.5～3, and thickness is 0.1～1mm, and the back thickness that expands reaches 5～10mm.Described auxiliary agent comprises thinner, thixotropic agent, defoamer.Described titanium dioxide adopts red metal and stone type titanium dioxide.
The mechanism of action of the present invention is: utilize the advantage of solventless epoxy resin coating, various fillers and flame-retardant system are combined, form the super-thin steel structure frie retardant coating of excellent performance.Solventless epoxy resin coating has and coheres strong height, and closure is good, certain corrosion proof function.Flame-retardant system adopts traditional three component intumescent systems--ultrapas, tetramethylolmethane, ammonium polyphosphate compound system; After coating was subjected to the thermal softening fusion, the ammonium polyphosphate decomposes became phosphoric acid, at high temperature formed to be difficult to the sticky shape polyphosphoric acid of evaporable molten mass; Phosphoric acid is very strong dewatering agent, and it and the reaction of polyol tetramethylolmethane form charring layer; Meanwhile ultrapas is met thermolysis and is discharged non-flammable gas, promotes the charcoal layer to form the porous spongy structure.Titanium dioxide and phosphatase reaction form the tetra-sodium titanium, cover the charcoal laminar surface, play heat insulation support, and titanium dioxide also can improve the physicals of coating simultaneously.Expansible black lead is in order to strengthen the expansion ratio and the intensity of charcoal layer, further to improve the fire endurance of material.
Innovative point of the present invention and beneficial effect are: (1) applies to solvent-free epoxy resin terrace paint technology in the super-thin steel structure frie retardant coating, and the advantage that makes the super-thin steel structure frie retardant coating have epoxy coat has the fp characteristic again.(2) this super-thin steel structure frie retardant coating has the characteristics of environmental protection, and the super-thin steel structure frie retardant coating is solvent type mostly now, solvent type environment is easily polluted.(3) this coating has better matching property, can be compatible preferably with the epoxy zinc-rich anti-corrosion primer; (4) this frie retardant coating cohesive strength height, characteristics such as cohesive strength 〉=1.5MPa has certain water resistance and antiseptic property, and surface capable of decoratively is strong.
Embodiment
The present invention will be further described below in conjunction with specific embodiment, and following each embodiment only is used to the present invention is described but not limitation of the present invention.Table 1 is embodiment.
Table 1
The manufacture method of the various embodiments described above is identical, and its method is as follows:
1, at first presses the consumption of table 1, expansible black lead, titanium dioxide, molybdate, zinc borate etc. are joined in the Resins, epoxy A component, in high speed dispersor, disperseed 10 minutes, change sand mill over to, being ground to the coating fineness is 50u～80u, makes solvent-free epoxy resin part sample.
2, ultrapas, tetramethylolmethane, the fire-retardant body of ammonium polyphosphate are joined in the solidifying agent B component, disperseed 10 minutes in high speed dispersor, change sand mill over to, being ground to the coating fineness is 50u～80u, makes solvent-free epoxy resin another part sample.
3, with above-mentioned two portions sample mix, stir, brush on the steel plate of 10*10cm.
Table 2 is the performance test results of the various embodiments described above.
Annotate: People's Republic of China's Safety Industry standard is GB14907-2002 " steel structure fire-proof paint ".
Claims (10)
1. a solvent-free epoxy resin super-thin steel structure frie retardant coating is characterized in that, comprises the content of following component and mass fraction:
Component 1: 30～50 parts of solvent-free epoxy resins
Component 2: 5～10 parts of titanium dioxides
Component 3: 5～8 parts of zinc borates
Component 4: 1～3 part of expansible black lead
Component 5: press down 0.1～1 part of fumicants
Component 6: 30～50 parts of flame-retardant systems
Component 7: 0.5～2.0 part of auxiliary agent.
2. solvent-free epoxy resin super-thin steel structure frie retardant coating as claimed in claim 1 is characterized in that, described solvent-free epoxy resin is divided into Resins, epoxy A component and solidifying agent B component, the proportioning of A component and B component is 4: 1,3: 1,3.75: 1, or 2: 1.
3. solvent-free epoxy resin super-thin steel structure frie retardant coating as claimed in claim 2 is characterized in that, described Resins, epoxy A component is an E44 Resins, epoxy, and solidifying agent B component is the amine curing agent of modification.
4. solvent-free epoxy resin super-thin steel structure frie retardant coating as claimed in claim 3 is characterized in that the proportioning of the amine curing agent of described E44 Resins, epoxy and modification is 3.75: 1.
5. as arbitrary described solvent-free epoxy resin super-thin steel structure frie retardant coating among the claim 1-4, it is characterized in that described flame-retardant system adopts ultrapas, tetramethylolmethane, ammonium polyphosphate compound system, its proportioning is 1: 3: 2,1: 3: 1, or 2: 3: 1.
6. solvent-free epoxy resin super-thin steel structure frie retardant coating as claimed in claim 5 is characterized in that the proportioning of described ultrapas, tetramethylolmethane, ammonium polyphosphate is 1: 3: 2, and wherein the polymerization degree of ammonium polyphosphate is greater than 1000.
7. as claim 1 or 6 described solvent-free epoxy resin super-thin steel structure frie retardant coatings, it is characterized in that but described fumicants is molybdenum sesquioxide or molybdate.
8. as claim 1 or 6 described solvent-free epoxy resin super-thin steel structure frie retardant coatings, it is characterized in that described expansible black lead adopts flakey, its length is between 0.5～3, and thickness is 0.1～1mm, and the back thickness that expands reaches 5～10mm.
9. as claim 1 or 6 described solvent-free epoxy resin super-thin steel structure frie retardant coatings, it is characterized in that described auxiliary agent comprises thinner, thixotropic agent, defoamer.
10. as claim 1 or 6 described solvent-free epoxy resin super-thin steel structure frie retardant coatings, it is characterized in that described titanium dioxide adopts red metal and stone type titanium dioxide.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104011153A (en) * | 2011-10-24 | 2014-08-27 | 株式会社Kcc | Solvent-free flame-resistant epoxy paint composition, the toxicity of the smoke of which is reduced in the event of an outbreak of a fire |
| CN107286810A (en) * | 2017-07-26 | 2017-10-24 | 富思特新材料科技发展股份有限公司 | A kind of B1 grades of fire-retardant floor coatings of environment-friendly solvent-free epoxy and preparation method thereof |
| CN108455927A (en) * | 2018-02-01 | 2018-08-28 | 重庆力能化工有限公司 | A kind of production method and construction technology of environment-protection ground terrace material |
| CN109468058A (en) * | 2018-09-30 | 2019-03-15 | 浙江凌志新材料有限公司 | A kind of weather-proof cracking resistance organosilicon fireproof coating of ultrathin type |
| CN109735206A (en) * | 2019-01-15 | 2019-05-10 | 南京展拓消防设备有限公司 | A kind of slim outdoor fireproof coating of weatherability and its preparation process |
| CN110591502A (en) * | 2019-09-19 | 2019-12-20 | 石家庄市油漆厂 | Two-component intumescent fire-retardant coating and preparation method thereof |
| CN111471357A (en) * | 2020-05-31 | 2020-07-31 | 华叶莹 | Water-based modified fireproof coating and preparation method thereof |
| CN112029383A (en) * | 2020-08-03 | 2020-12-04 | 北京慕成防火绝热特种材料有限公司 | Expanded graphene fire-resistant, antistatic and anticorrosive coating |
| CN112048232A (en) * | 2020-08-05 | 2020-12-08 | 北京慕成防火绝热特种材料有限公司 | Novel intumescent fire-retardant system, paint, fire retardant and sizing agent |
| CN112898873A (en) * | 2021-02-04 | 2021-06-04 | 北京慕成防火绝热特种材料有限公司 | Epoxy intumescent steel structure fireproof coating and preparation method thereof |
| CN115491108A (en) * | 2022-09-15 | 2022-12-20 | 上海涂固安高科技有限公司 | Anti-static non-ignition wear-resistant polyurea terrace coating and preparation method thereof |
| CN116120814A (en) * | 2023-04-17 | 2023-05-16 | 内蒙古工业大学 | Environment-friendly organosilicon modified intumescent fireproof coating |
| CN117025051A (en) * | 2023-05-18 | 2023-11-10 | 中森新材料(深圳)有限公司 | Novel heat insulation coating for thermal runaway of battery pack and preparation method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104011153A (en) * | 2011-10-24 | 2014-08-27 | 株式会社Kcc | Solvent-free flame-resistant epoxy paint composition, the toxicity of the smoke of which is reduced in the event of an outbreak of a fire |
| CN107286810A (en) * | 2017-07-26 | 2017-10-24 | 富思特新材料科技发展股份有限公司 | A kind of B1 grades of fire-retardant floor coatings of environment-friendly solvent-free epoxy and preparation method thereof |
| CN108455927A (en) * | 2018-02-01 | 2018-08-28 | 重庆力能化工有限公司 | A kind of production method and construction technology of environment-protection ground terrace material |
| CN109468058B (en) * | 2018-09-30 | 2020-12-29 | 浙江凌志新材料有限公司 | Ultrathin weather-resistant anti-cracking organic silicon fireproof coating |
| CN109468058A (en) * | 2018-09-30 | 2019-03-15 | 浙江凌志新材料有限公司 | A kind of weather-proof cracking resistance organosilicon fireproof coating of ultrathin type |
| CN109735206A (en) * | 2019-01-15 | 2019-05-10 | 南京展拓消防设备有限公司 | A kind of slim outdoor fireproof coating of weatherability and its preparation process |
| CN110591502A (en) * | 2019-09-19 | 2019-12-20 | 石家庄市油漆厂 | Two-component intumescent fire-retardant coating and preparation method thereof |
| CN111471357A (en) * | 2020-05-31 | 2020-07-31 | 华叶莹 | Water-based modified fireproof coating and preparation method thereof |
| CN112029383A (en) * | 2020-08-03 | 2020-12-04 | 北京慕成防火绝热特种材料有限公司 | Expanded graphene fire-resistant, antistatic and anticorrosive coating |
| CN112048232A (en) * | 2020-08-05 | 2020-12-08 | 北京慕成防火绝热特种材料有限公司 | Novel intumescent fire-retardant system, paint, fire retardant and sizing agent |
| WO2022027922A1 (en) * | 2020-08-05 | 2022-02-10 | 北京慕成防火绝热特种材料有限公司 | Novel intumescent fireproof flame-retardant system, coating, flame retardant and sizing agent |
| CN112898873A (en) * | 2021-02-04 | 2021-06-04 | 北京慕成防火绝热特种材料有限公司 | Epoxy intumescent steel structure fireproof coating and preparation method thereof |
| CN115491108A (en) * | 2022-09-15 | 2022-12-20 | 上海涂固安高科技有限公司 | Anti-static non-ignition wear-resistant polyurea terrace coating and preparation method thereof |
| CN116120814A (en) * | 2023-04-17 | 2023-05-16 | 内蒙古工业大学 | Environment-friendly organosilicon modified intumescent fireproof coating |
| CN117025051A (en) * | 2023-05-18 | 2023-11-10 | 中森新材料(深圳)有限公司 | Novel heat insulation coating for thermal runaway of battery pack and preparation method |
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Application publication date: 20110518 |