合成材料老化与应用2026，Vol.55Issue(4)：5-9,5.
干热环境户外自然老化对钢结构防火涂层性能的影响
Effect of Outdoor Natural Dry-hot Environment Aging on the Performances of Fire-retardant Coating for Steel Structure
唐全宏 1张天昊 2魏捷 1梅晶 3黄建敏 1侯春生 1王敏臣3
作者信息
- 1. 中国石油天然气集团有限公司超深层复杂油气藏勘探开发技术研发中心,新疆库尔勒 841000||新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心,新疆库尔勒 841000||新疆超深油气重点实验室,新疆库尔勒 841000||塔里木油田公司,新疆库尔勒 841000
- 2. 应急管理部四川消防研究所,四川成都 610036
- 3. 新疆维吾尔自治区应急管理科学研究院,新疆乌鲁木齐 830000
- 折叠
摘要
Abstract
Outdoor natural aging experiment in a typical dry-hot environment was carried out to investigate the effects of the structure and aging time of the fire-retardant coatings for steel structure samples on their apparent morphology,adhesion strength and fire resistance.The results showed that the surface cleanliness,adhesion strength and fire resistance of the FC-PIT coatings deteriorated with the increase of aging time.After six months of natural aging,the FC-PIT can still maintain good integrity,steel surface adhesion and fire resistance.Whereas the FC-IT,FC-PT and FC-PI coatings without primer,intermediate or topcoat layer exhibit varying degrees of damage,resulting in the loss of surface adhesion and fire resistance on steel structure.In comparison with the unaged FC-PIT,the adhesion strength,fire resistance limit and expansion ratio of the FC-PIT coating after ageing 6 months were 1.33 MPa,48 min and 28,respectively.The corresponding attenuation rates for adhesion strength,fire resistance limit and expansion ratio of the aged FC-PIT sample were 20.8％,9.4％and 9.8％,respectively,retaining strong adhesion to the steel substrate and effective fire resistance.This work provides guidance for the aging mechanism and engineering application of fire-retardant coatings in dry-hot environments.关键词
钢结构防火涂层/涂层结构/自然老化/干热环境/耐火性能Key words
fire-retardant coatings for steel structure/coating structure/natural aging/dry-hot environment/fire resistance分类
化学化工引用本文复制引用
唐全宏,张天昊,魏捷,梅晶,黄建敏,侯春生,王敏臣..干热环境户外自然老化对钢结构防火涂层性能的影响[J].合成材料老化与应用,2026,55(4):5-9,5.
