基于硅铁系尾渣的红外辐射涂料及其涂层性能研究

doi:10.3969/j.issn.1001-1935.2025.02.006

耐火材料 ›› 2025, Vol. 59 ›› Issue (2): 123-127.DOI: 10.3969/j.issn.1001-1935.2025.02.006

基于硅铁系尾渣的红外辐射涂料及其涂层性能研究

周涛¹⁾, 付绿平¹⁾, 杨爽¹⁾, 陈定^1,2), 张美杰¹⁾, 黄奥¹⁾, 顾华志¹⁾

1)武汉科技大学先进耐火材料全国重点实验室湖北武汉 430081
2)新疆兵团化工绿色过程重点实验室新疆石河子 832000

收稿日期:2024-07-19 出版日期:2025-04-15 发布日期:2025-04-14
通讯作者: 杨爽,男,1987年生,博士,副教授。E-mail:shuang_yang@wust.edu.cn
作者简介:周涛:男,2001年生,硕士研究生。E-mail:2084615731@qq.com
基金资助:
国家自然科学基金面上资助项目(52172023,52272022);湖北省自然科学基金杰出青年项目(2021CFA071);新疆兵团化工绿色过程重点实验室开放基金(KF202401)。

Study on infrared radiation coatings based on Si-Fe tailings slag and their performance

Zhou Tao, Fu Lyu-ping, Yang Shuang, Chen Ding, Zhang Meijie, Huang Ao, Gu Huazhi

First author’s address:State Key Laboratory of Advanced Refractories,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China

Received:2024-07-19 Online:2025-04-15 Published:2025-04-14

摘要/Abstract

摘要： 为提高红外辐射性能,降低生产成本,以硅铁系尾渣为原料,制备了2种红外辐射涂料,并通过喷涂法喷涂至硅砖表面,经1 300 ℃保温2 h,制备了高温红外辐射涂层。研究了流变助剂的种类(乙基纤维素、丙烯酸树脂)、固相质量分数(40%、50%、60%、70%)对涂料流变性能的影响,并测试了涂层的物相组成与红外辐射性能。结果表明:1)低剪切速率下(≤0.1 s^-1),丙烯酸树脂流变助剂制备的涂料黏度随固相质量分数增加急剧增大,且随剪切速率增加急剧减小,表现出典型的剪切变稀特性,固相质量分数为50%时,线性黏弹区较宽,储能模量高于损耗模量,涂料具有较好的结构稳定性。2)高剪切速率下(≥100 s^-1),乙基纤维素流变助剂制备的涂料黏度随固相质量分数增加显著增大,且高于丙烯酸树脂体系涂料的。3)丙烯酸树脂体系涂层红外发射率更高,近红外、中红外平均发射率分别为0.89和0.9。且在红外波段(1~8 μm)下,平均发射率高达0.94,在工业窑炉上表现出良好的应用前景。

关键词: 硅铁系尾渣, 红外辐射涂料, 流变性能, 固相质量分数

Abstract: To enhance the infrared radiation performance and reduce production costs,two infrared radiation coatings were prepared using Si-Fe tailings as the main raw material.The coatings were sprayed onto silica brick surfaces and heat-treated at 1 300 ℃ for 2 h to form high-temperature infrared radiation coatings.The effects of rheological additive types (ethylcellulose and acrylic resin) and solid phase mass fractions (40%,50%,60%,and 70%) on the rheological properties of the coatings were investigated,and the phase composition and infrared radiation performance of the coatings were characterized.The results show that:(1)at low shear rates (≤0.1 s^-1),the viscosity of coatings with acrylic resin as the rheological additive increases sharply with the solid phase mass fraction increasing,and decreases rapidly with the increasing shear rate,exhibiting typical shear-thinning behavior;when the solid phase mass fraction is 50%,the coatings have a wider linear viscoelastic region and a higher storage modulus than loss modulus,indicating excellent structural stability;(2)at high shear rates (≥100 s^-1),the viscosity of coatings with ethylcellulose as the rheological additive increases significantly with the solid phase mass fraction increasing,and is higher than that of the acrylic resin system;(3)the acrylic resin-based coatings demonstrate superior infrared radiation performance,with average near-infrared and mid-infrared emissivities of 0.89 and 0.90,respectively;in the infrared band (1-8 μm),the average emissivity reaches 0.94,showing promising applications in industrial furnaces.

Key words: Si-Fe tailings, infrared radiation coating, rheological properties, solid phase mass fraction

中图分类号:

TQ175

周涛, 付绿平, 杨爽, 陈定, 张美杰, 黄奥, 顾华志. 基于硅铁系尾渣的红外辐射涂料及其涂层性能研究[J]. 耐火材料, 2025, 59(2): 123-127.

Zhou Tao, Fu Lyu-ping, Yang Shuang, Chen Ding, Zhang Meijie, Huang Ao, Gu Huazhi. Study on infrared radiation coatings based on Si-Fe tailings slag and their performance[J]. Refractories, 2025, 59(2): 123-127.

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基于硅铁系尾渣的红外辐射涂料及其涂层性能研究

Study on infrared radiation coatings based on Si-Fe tailings slag and their performance

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