A novel humidity self-regulating interior wall coating composite based on red mud derived from alumina production

被引：7
作者：
Feng, Jinpeng [1 ]
Liu, Shuhan [1 ]
Hwang, Jiann-Yang [2 ]
Mo, Wei [1 ]
Su, Xiujuan [1 ]
Ma, Shaojian [1 ]
Wei, Zongwu [1 ]
机构：
[1] Guangxi Univ, Sch Resources Environm & Mat, Nanning 530004, Peoples R China
[2] Michigan Technol Univ, Dept Mat Sci & Engn, Houghton, MI 49931 USA
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2022年 / 349卷
基金：
中国国家自然科学基金;
关键词：
Red mud; Vermiculite; Humidity; Self; -regulation; GEOPOLYMER; ADSORPTION; VERMICULITE; PREDICTION;
D O I：
10.1016/j.conbuildmat.2022.128755
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Aimed to resolve the problem of excessively high indoor humidity in subtropical areas and develop a new resource disposal technique for red mud, a novel humidity self-regulating interior wall coating composite based on red mud (HRCRM) was successfully prepared using red mud as a matrix material and vermiculite as a hu-midity regulator. The effects of component proportion, ambient humidity, exposure time on hygroscopicity of this composite were systematically investigated. This composite exhibited good humidity regulating ability with the largest water absorption rate of 16.38% under experimental conditions. Moreover, various properties were tested including surface drying time, hardness, adhesion, coating appearance, water resistance and reusability, meeting the national standard requirements well. The mechanism was comprehensively analyzed by XRD, TG-DTG, FESEM, and FTIR, indicating that the humidity self-adjusting function of HRCRM was realized by regu-lating the interlayer water storage of vermiculite. This study can provide theoretical and technical guidance for residential environment improvement in subtropical areas and comprehensive utilization of red mud.
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页数：14
相关论文
共 46 条
[1]   Evaluation of red mud as a polymetallic source-A review [J].
Agrawal, Shrey ;
Dhawan, Nikhil .
MINERALS ENGINEERING, 2021, 171
[2]   Microwave acid baking of red mud for extraction of titanium and scandium values [J].
Agrawal, Shrey ;
Dhawan, Nikhil .
HYDROMETALLURGY, 2021, 204
[3]   Metakaolin-red mud/carbon nanotubes geopolymer nanocomposite: mechanical properties and structural studies [J].
Ahmadi, Hamidreza ;
Khalaj, Gholamreza ;
Najafi, Abolhassan ;
Abbasi, Saloumeh Mesgari ;
Safari, Masumeh .
MATERIALS RESEARCH EXPRESS, 2022, 9 (02)
[4]   Utilization of red mud for producing a high strength binder by composition optimization and nano strengthening [J].
Ahmed, Sara ;
Meng, Tao ;
Taha, Mazahir .
NANOTECHNOLOGY REVIEWS, 2020, 9 (01) :396-409
[5]   The standard thermodynamic properties of vermiculites and prediction of their occurrence during water-rock interaction [J].
Apollaro, Carmine ;
Marini, Luigi ;
Critelli, Teresa ;
De Rosa, Rosanna .
APPLIED GEOCHEMISTRY, 2013, 35 :264-278
[6]   The possibility of vermiculite, sunflower stalk and wheat stalk using for thermal insulation material production [J].
Binici, Hanifi ;
Aksogan, Orhan ;
Dincer, Aytac ;
Luga, Erion ;
Eken, Mustafa ;
Isikaltun, Ozge .
THERMAL SCIENCE AND ENGINEERING PROGRESS, 2020, 18
[7]   Neodymium recovery from aqueous solution through adsorption/desorption onto expanded vermiculite [J].
Briao, Giani de Vargas ;
Carlos da Silva, Meuris Gurgel ;
Adeodato Vieira, Melissa Gurgel .
APPLIED CLAY SCIENCE, 2020, 198
[8]   The phase transition in Bayer red mud from China in high caustic sodium aluminate solutions [J].
Cao, Shaotao ;
Ma, Haijun ;
Zhang, Yi ;
Chen, Xiaofan ;
Zhang, Yifei ;
Zhang, Yi .
HYDROMETALLURGY, 2013, 140 :111-119
[9]   Shale gas transport in rock matrix: Diffusion in the presence of surface adsorption and capillary condensation [J].
Chen, Jin-Hong ;
Althaus, Stacey M. ;
Liu, Hui-Hai ;
Sun, Qiushi .
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2019, 66 :18-25
[10]   Achieving better energy-efficient air conditioning - A review of technologies and strategies [J].
Chua, K. J. ;
Chou, S. K. ;
Yang, W. M. ;
Yan, J. .
APPLIED ENERGY, 2013, 104 :87-104
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