开发与应用

溶剂型膨胀钢结构防火涂料的性能研究

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  • 1.西北师范大学化学化工学院,兰州730070;
    2.新疆晶刚涂料有限公司,昌吉831100;
    3.乌鲁木齐晋江华强防火涂料有限公司,乌鲁木齐830000
俞洁(1979-),女,博士,副教授,主要研究方向为防火涂料的研发、水污染控制化学和光谱分析化学,E-mail:yujie741008@163.com。

收稿日期: 2020-07-21

  修回日期: 2021-07-17

  网络出版日期: 2021-12-13

基金资助

国家自然科学基金(21864022和21961032);甘肃省自然科学基金项目(17JR5RA077和17JR5RA075)

Study on the performance of a solvent-borne intumescent fire-retardant coating for steel structure

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  • 1. College of Chemistry and Chemical Engineering,Northwest Normal University, Lanzhou 730070;
    2. Xinjiang Jinggang Coating Co.,Ltd.,Changji 831100;
    3. Urumqi Jinjiang Huaqiang Fire Retardant Coating Co.,Ltd.,Urumqi 830000

Received date: 2020-07-21

  Revised date: 2021-07-17

  Online published: 2021-12-13

摘要

以一种溶剂型膨胀钢结构防火涂料为例,使用酒精喷灯模拟火灾现场的高温环境,对防火涂料的膨胀倍数和耐火极限进行研究。采用热重/差热(TG-DTG)对涂料的热稳定性进行分析,采用红外光谱(FT-IR)、X射线衍射(XRD)、扫描电镜(SEM)等手段对炭层的组分、结构和形貌进行表征。结果表明:该涂料在耐火极限达到180℃时所需时间为110min,此时膨胀倍数为9.0。TG-DTG分析发现,防火涂料热稳定性良好;FT-IR分析暗示,炭层主要由—OH、—CH2、CC、C—O、Ti—O等构成;XRD分析说明炭层中形成的物质主要为TiO2与TiP2O7,SEM形貌观察发现,炭层呈“蜂窝状”结构。该涂料是一种性能优异的钢结构防火涂料。

本文引用格式

俞洁, 卢转红, 王清波, 甘芳芳, 穆耶赛尔·穆合塔尔, 陆泉芳 . 溶剂型膨胀钢结构防火涂料的性能研究[J]. 化工新型材料, 2021 , 49(11) : 262 -266 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.11.054

Abstract

Taking a solvent-borne intumescent fire-retardant coating of steel structure as an example,the expansion multiple and fire resistant limit of the coating were investigated by using alcohol blowtorch to simulate the high temperature environment of fire site.The thermal stability of the coating was analyzed by thermogravimetry (TG) and differential thermogravimetry (DTG).The structure,morphology and components of the residual char were characterized by using scanning electron microscope (SEM),X-rays diffraction (XRD),and fourier transform infrared spectrum (FT-IR).The results showed that when the fire resistant limit reached 180℃,the required time was 110min.At this case,the expansion multiple was 9.0.TG-DTA analysis found that the coating had good thermal stability.XRD analysis indicated that the residual char contained a certain amount of TiO2 and TiP2O7,and FT-IR analysis showed that the residual charis mainly composed of —OH,—CH2—,CO,P—C—O and Ti—O.The SEM morphology suggested that the char was formed a “honeycomb” structure.Overall,the coating was a kind of flame-retardant coating with excellent performance.

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