主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (1): 98-100+103.

• • 上一篇    下一篇

建筑钢结构膨胀型耐火涂料的性能研究

邢 君1 ，张郁芳2   

  1. 1.太原城市职业技术学院，山西 太原 030027；2.太原市建筑设计研究院，山西 太原 030002
  • 收稿日期:2019-08-23 出版日期:2020-01-15 发布日期:2020-01-15
  • 作者简介:邢 君（1981-），女，山西定襄人，太原城市职业技术学院讲师，硕士，主要从事建筑设计及施工研究，山西省太原市兴华街 3 号，030027。

Study on properties of expansive refractory coatings for steel structures in buildings

XING Jun1 , ZHANG Yu-fang2   

  1. 1.Taiyuan City Vocational College,Shanxi Taiyuan 030027， China；2.Taiyuan Institute of Architecture Design & Research, Shanxi Taiyuan 030002，China
  • Received:2019-08-23 Online:2020-01-15 Published:2020-01-15

摘要： 研究不同膨胀型阻燃剂配方在火灾下对钢材性能的 影响。以硅灰(SF)为粘结剂，蛋壳(CES)为填料，合成了水基膨胀 涂料。采用热重分析(TGA)、扫描电镜(SEM)、小型煤气喷灯试 验和加热炉试验研究了粘结剂和填料对涂料性能和耐火性能的影 响。TGA 结果表明，在 SEM 图像中单独添加 SF 或与 CES 复 合均能提高涂料的残余重量和热稳定性，同时改善了涂料的表面 结构。SF、CES 与阻燃添加剂的组合防火性能最佳，具有最高的 热稳定性、最大膨胀度和最致密的表面结构，且在火灾暴露过程中 具有足够的附着性。

关键词: 膨胀涂料, 耐火材料, 建筑钢结构, SEM

Abstract: In this paper, the effects of different intumescent flame retardants on the properties of steel under fire were studied.Waterbased expansive coatings were synthesized with silica fume (SF) as binder and eggshell (CES) as filler.The effects of binder and filler on coating properties and fire resistance were studied by thermogravimetric analysis (TGA), scanning electron microscope (SEM), small gas burner test and furnace test.TGA results show that adding SF alone or combining with CES in SEM images can improve the residual weight and thermal stability of coatings, and improve the surface structure of coatings.The combination of SF, CES and flame retardant additives has the best fire performance, with the highest thermal stability, the largest expansion degree and the densiest surface structure, and has enough adhesion in the process of fire exposure.

Key words: expansion of coating, fireproofing, construction of steel structure, SEM