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| 水性钢结构防火涂料的制备及其耐火性能研究 | |
| 引用本文： | 张凡,张磊,张鹤龄,赵东林.水性钢结构防火涂料的制备及其耐火性能研究[J].涂料工业,2012,42(2):1-5. |
| 作者姓名： | 张凡 张磊 张鹤龄 赵东林 |
| 作者单位： | 1. 北京化工大学化工资源有效利用国家重点实验室,碳纤维及功能高分子教育部重点实验室,北京100029 2. 中国建筑科学研究院,北京,100013 3. 营口市高级中学,辽宁营口,115003 |
| 摘 要： | 以水性树脂为基体,聚磷酸铵(APP)、三聚氰胺(MEL)、季戊四醇(PER)为膨胀阻燃体系,可膨胀石墨(EG)和绢云母为填料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、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,制备的防火涂料涂层受热膨胀倍率为5.68倍,形成了"蜂窝状"结构的膨胀炭质层,孔洞均匀致密,与钢板粘附性好、强度高,耐火性能好,耐火极限高达2 997 s。 |
| 关 键 词： | 防火涂料 可膨胀石墨 绢云母 耐火极限 |
Preparation and Fire Resistance of Waterborne Fireproof Coating for Steel Structures |
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| Zhang Fan , Zhang Lei , Zhang Heling , Zhao Donglin.Preparation and Fire Resistance of Waterborne Fireproof Coating for Steel Structures[J].Paint & Coatings Industry,2012,42(2):1-5. | |
| Authors: | Zhang Fan Zhang Lei Zhang Heling Zhao Donglin |
| Affiliation: | 1(1.State Key Laboratory of Chemical Resource Engineering;Key Laboratory of Carbon Fiber and Functional Polymers,Ministry of Education,Beijing University of Chemical Technology,Beijing 100029,China;2.China Academy of Building Research,Beijing 100013,China; 3.Yingkou Senior High School,Yingkou,Liaoning 115003,China) |
| Abstract: | An intumescent flame-retardant coating was prepared with waterborne resin as binder,ammonium polyphosphate(APP),melamine(MEL) and pentaerythritol(PER) as intumescent flame retardants,and expansion graphite(EG) and sericite as fillers.The effects of the binder blending,the ratio of the flame retardant system,the ratio of EG and sericite on the fireproofing time and char formation of the coating were investigated by using high temperature furnace.The results showed that when the ratio of binder blend of vinyldene chloride latex and acrylic latex AC261P was 22:3(m/m),APP,MEL and PER was 4:3:3(m/m),EG/sericite was 5:3(m/m),the intumescent ratio of the char layer was 5.68 and an "open-cellular" structure char layer with compact and well-distributed pores was formed,which showed good adhesion on steel and was tough enough to protect the steel structure.The coating of flame-retardant fireproof time reached 2 997 s. |
| Keywords: | flame-retardant coating expandable graphite sericite fireproof time |
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