以水性乳液为基体,聚磷酸铵（APP）、三聚氰胺（MEL）、季戊四醇（PER）为膨胀阻燃体系,通过添加可膨胀石墨（EG）和绢云母制备了水性膨胀型钢结构防火涂料;研究了基体拼合、膨胀阻燃体系配比、EG与绢云母配比对钢结构防火涂料性能的影响。结果表明,氯偏乳液与纯丙AC261P乳液质量比为22∶3,APP/MEL/PER的质量比为4∶3∶3,可膨胀石墨和绢云母的质量比为5∶3时,制备的防火涂料受热后形成的炭质层与钢板粘附性好、强度高,膨胀倍率大,持续耐火性能最好,受热4500s后钢板背面温度维持在223℃。
An intumescent flame-retardant coating was prepared with binder, solvent and flame retardant system composed of ammonium polyphosphate (APP), melamine (MEL) and pentaerythritol (PER). The modifiers expandable graphite (EG) and sericite were used to improve the performances of the APP-PER-MEL coating. The effects of the compose of the binder; the ratio of the flame retardant system; the ratio of EG and serieite on the fire-retardant property and char formation of the coating were investigated by using self-made high tempera- ture furnace. The results showed that, when the binder composed of chloride latex and acrylic latex AC261P by the percentage of 22 : 3; APP, MEL, PER conducted by the percentage of 4 : 3 : 3; the ratio of EG/serieite was 5 : 3, the char layer with compact and well-distributed pores was formed, the char structure showed good adhesive properties and was tough enough to protect the steel structure. And the steel structure reached only 223℃ at 4500s.
参考文献
| [1] | Zhang Fan;Zhang Let;Zhang Heling et al.Preparation and fire resistance property of waterborne fireproof coat- ing for steel structure[J].Paint and Coatings Industry,2012,42(02):1-5. |
| [2] | 刘毅,魏世丞,王玉江,徐滨士.自动化高速电弧喷涂锌铝基防腐涂层的耐蚀性研究[J].功能材料,2010(z2):296-299. |
| [3] | Wang Guozhou;Qu Luqian.Steel structure principle and design[M].北京:清华大学出版社,1993:1-2. |
| [4] | 王明贵,张莉若.钢结构住宅技术研究[J].钢结构,2004(03):36-39. |
| [5] | 刘斌,张德震,常宝.水性超薄膨胀型钢结构防火涂料的制备[J].涂料工业,2011(01):44-47,51. |
| [6] | M. Le Bras;S. Bourbigot .Comprehensive study of the degradation of an intumescent EVA-based material during combustion[J].Journal of Materials Science,1999(23):5777-5782. |
| [7] | Li Fei .Study on the prescription of super-thin intumes- cent fire retardant coatings for steel structures[D].Xi' an:Northwest University,2007. |
| [8] | Wang Zhenyu;Han Enhou;Ke Wei .Influence of nano- formation and fire-resistant properties of coating LDHs on char flam-retardant ings[J].Progress in Organic Coat,2005,53:29-37. |
| [9] | 刘学军,付若愚,咸才军,郭保文,郭奋.可膨胀石墨在膨胀型钢结构防火涂料中的应用[J].精细化工,2005(05):328-330,341. |
| [10] | Wang, GJ;Yang, JY .Influences of binder on fire protection and anticorrosion properties of intumescent fire resistive coating for steel structure[J].Surface & Coatings Technology,2010(8):1186-1192. |
| [11] | Wang, G.;Yang, J. .Influences of molecular weight of epoxy binder on fire protection of waterborne intumescent fire resistive coating[J].Surface & Coatings Technology,2012(8/9):2146-2151. |
| [12] | Guoxin Li;Guozheng Liang;Tingshu He;Qinli Yang;Xuefeng Song .Effects of EG and MoSi_2 on thermal degradation of intumescent coating[J].Polymer Degradation and Stability,2007(4):569-579. |
| [13] | Chuen-Shii Chou;Sheau-Horng Lin;Chin-I Wang .A hybrid intumescent fire retardant coating from cake- and eggshell-type IFRC[J].Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems,2010(1):149-156. |
| [14] | 胡剑青,郑智贤,涂伟萍,王锋.热胀性微胶囊的制备及其在水性木器功能涂料中的应用[J].功能材料,2010(07):1201-1204. |
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