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 ›› 2026, Vol. 45 ›› Issue (9): 140-146.

• • 上一篇    下一篇

膨胀型钢结构防火涂料与环氧云铁中间漆配套体系相容性研究

孙朝1, 金义杰2, 靳小飞1, 贾丹2   

  1. （1.中铁建工集团有限公司中国中铁房建专业研发中心，北京 100160； 2.中国机械总院集团武汉材料保护研究所有限公司 特种材料表面工程全国重点实验室，湖北 武汉 430030）
  • 收稿日期:2025-06-19 修回日期:2025-08-21 出版日期:2026-09-15 发布日期:2026-09-15
  • 作者简介:孙朝，中铁建工集团有限公司中国中铁房建专业研发中心，高级工程师，博士，主要从事涂层材料开发与工程应用工作，北京市丰台区南四环西路128号，100160。
  • 基金资助:
    国家自然科学基金项目（52205213）；2023年湖北省重大攻关项目（2023BAA003）

Study on the compatibility of intumescent fireproof coatings for steel structures with epoxy micaceous iron oxide intermediate paint supporting systems

Sun Zhao1, Jin Yijie2, Jin Xiaofei1, Jia Dan2   

  1. (1. China Railway Housing Construction Professional Research and Development Center, China Railway Construction Engineering Group Co., Ltd., Beijing 100160, China; 2. State Key Laboratory of Special Materials Surface Engineering, China Academy of Machinery Wuhan Research Institute of Materials Protection Co., Ltd., Wuhan Hubei 430030, China)
  • Received:2025-06-19 Revised:2025-08-21 Online:2026-09-15 Published:2026-09-15

PDF (PC)

10

摘要： 本试验旨在探究膨胀型钢结构防火涂料与环氧云铁中间漆配套体系之间的相容性，并提出该体系的相容性评价方法，为相关防护工程材料选型提供支撑。通过极化曲线、中性盐雾、大板燃烧、扫描电子显微镜（SEM）观察、界面缝隙测量及耐水性测试等方法，对3种环氧云铁中间漆（B1~B3）与3种膨胀型钢结构防火涂料（C1~C3）的自身性能及配套体系展开分析。结果显示，B3中间漆耐蚀性能最优（腐蚀电流密度为1.52×10⁻6 A/cm2），C1、C2防火涂料耐火20 min后膨胀层完整，B1C1、B2C2、B3C1、B3C2配套体系相容性及耐水性能良好，其中丙烯酸C2防火体系与环氧云铁中间漆的相容性和结合力最佳。微观界面结合、界面缝隙宽度及附着力测试等方法，是评估环氧中间漆与防火涂料配套性、相容性的有效途径，可为高铁站房、工业厂房等钢结构防腐、防火防护工程的材料选型与体系优化提供技术支持。

关键词: 防火涂料, 中间漆, 相容性, 界面, SEM

Abstract: This study aims to investigate the compatibility between intumescent fireproof coatings for steel structures and epoxy micaceous iron oxide intermediate paint systems, to establish an evaluation method for their compatibility, and to provide technical support for material selection in related protective engineering applications. Polarization curve testing, neutral salt spray testing, large-scale panel combustion testing, Scanning Electron Microscopy (SEM), interfacial gap measurement, and water resistance testing were employed to evaluate the individual properties and compatibility of three epoxy micaceous iron oxide intermediate paints (B1~B3) and three intumescent fireproof coatings for steel structures (C1~C3). The results indicate that the B3 intermediate paint exhibited the best corrosion resistance, with a corrosion current density of 1.52 × 10⁻6 A/cm2, while after 20 min of fire exposure, the expanded char layers of the C1 and C2 fireproof coatings remained intact. The coating systems B1C1, B2C2, B3C1, and B3C2 demonstrated good compatibility and water resistance, among which the acrylic-based C2 fireproof coating showed the best compatibility and interfacial adhesion with the epoxy micaceous iron oxide intermediate paints. Methods including microscopic interfacial bonding observation, interfacial gap width measurement, and adhesion testing were proven to be effective approaches for evaluating the compatibility and matching performance between epoxy intermediate paints and fireproof coatings, and can provide technical support for material selection and coating system optimization in corrosion protection and fireproofing engineering applications for steel structures, such as high-speed railway stations and industrial plants.

Key words: flame resistant coatings, intermediate paints, compatibility, interface, SEM