华南理工大学学报(自然科学版) ›› 2014, Vol. 42 ›› Issue (6): 46-50.doi: 10.3969/j.issn.1000-565X.2014.06.008

• 材料科学与技术 • 上一篇    下一篇

高热震稳定性红外辐射节能涂料的制备与性能

赵立英1 刘平安1† 曾凡聪2 廖应峰2   

  1. 1.华南理工大学 材料科学与工程学院,广东 广州 510640; 2.佛山市康泰威新材料有限公司广东省超硬与电磁功能材料工程技术研究开发中心,广东 佛山 528216
  • 收稿日期:2013-07-19 修回日期:2014-04-01 出版日期:2014-06-25 发布日期:2014-05-01
  • 通信作者: 刘平安(1969-),男,副教授,主要从事高性能无机材料及电磁功能材料研究. E-mail:paliu@scut.edu.cn
  • 作者简介:赵立英(1978-),男,博士,工程师,主要从事电磁功能材料和节能环保新材料研究.E-mail:feiying99998888@163.com
  • 基金资助:

    粤港关键领域重点突破项目(2010Z5107)

Preparation and Properties of High Thermal Shock-Resistant Infrared Radiant Energy- Saving Coatings

Zhao Li- ying1 Liu Ping- an1 Zeng Fan- cong2 Liao Ying- feng2   

  1. 1.School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;2.Guangdong Technical Center for Superhard and Electromagnetic Materials Researching,Foshan Kangtaiwei Advanced MaterialsCo.Ltd.,Foshan 528216,Guangdong,China
  • Received:2013-07-19 Revised:2014-04-01 Online:2014-06-25 Published:2014-05-01
  • Contact: 刘平安(1969-),男,副教授,主要从事高性能无机材料及电磁功能材料研究. E-mail:paliu@scut.edu.cn
  • About author:赵立英(1978-),男,博士,工程师,主要从事电磁功能材料和节能环保新材料研究.E-mail:feiying99998888@163.com
  • Supported by:

    粤港关键领域重点突破项目(2010Z5107)

摘要: 以MnO2 、Fe2O3 、CuO、Co2O3 等过渡金属氧化物为原料,经高温固相反应形成具有尖晶石结构的红外辐射粉料,并进一步与莫来石高温焙烧制备复合红外辐射粉料,然后与硅酸盐粘接剂混合制备了高热震稳定性的红外辐射涂料.对材料的结构、理化性能以及耐热震稳定性进行了研究,结果表明:所制备的具有尖晶石结构的红外辐射粉料和复合红外辐射粉料均具有优良的红外辐射性能,室温全波段辐射率分别为 0.91 和 0.90,各个波段内的法向辐射率均在 0.92 以上;涂覆复合红外辐射涂料后,高铝砖的辐射吸热和热交换能力明显增加,600℃时蓄热能力提高 4.99%,1200 ℃时蓄热能力提高 20.98%;复合红外辐射涂料的膨胀系数和基体膨胀系数匹配性较好,具有良好的耐热震稳定性.

关键词: 节能涂料, 耐热震稳定性, 红外辐射率, 蓄热能力

Abstract:

A novel type of infrared radiant powders with spinel structure was prepared via the solid- state reaction of MnO2 ,Fe2O3 ,CuO and Co2O3 powders at high temperature,and was mixed with mullite to obtain composite infra-red radiant powders via high- temperature calcination.Then,the product was mixed with silicate adhesive to fabri-cate infrared radiant coatings with high thermal shock resistance.Finally,the microstructure,physicochemicalproperties and thermal shock resistance of the coatings were investigated.The results show that (1) both the origi-nal and the composite infrared radiant powders exhibit excellent infrared radiation capability,for instance,they areof a room- temperature whole- band infrared emissivity of 0.90 and 0.91,respectively,as well as an infrared emis-sivity in narrow bands of more than 0.92; (2) the heat absorption and exchange capacity of high alumina brickwith composite infrared radiant coatings on its surface dramatically improves,for instance,the heat storage capacityimproves by 4.99% at 600℃ and by 20.98% at 1200℃; and (3) the thermal expansion coefficient of the com-posite infrared radiant coatings matches well with that of high alumina brick,which means that the composite coatingspossess excellent thermal shock resistance.

Key words: energy- saving coating, thermal shock- resistance, infrared emissivity, heat storage capacity