抑霉菌泥炭藓/硅藻土复合调湿材料的研究

doi:10.11896/cldb.19060193

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Abstract Humidity controlling materials used in humid and hot areas of the south are easily exposed to high humidity for a long time due to moisture absorption, so it is prone to breed mold. In this study, the mold-inhibiting properties of sphagnum/diatomite composite humidity-controlling materials and their components on dominant mold indoors (P. citrinum, Asp. flavus and Asp. niger) were studied by Petri dish experiment. The mold-inhibiting mechanism of sphagnum/diatomite composite humidity-controlling materials was explored according to the environmental scanning electron microscope (ESEM) and energy dispersive spectrometer (EDS) analysis of Asp. niger spores treated with humidity-controlling materials and modified admixtures, the X-ray diffraction (XRD) and EDS analysis of modified admixtures as well as the determination of active O₂^- in static supernatant of modified admixtures and nucleic acid in leakages from mold spore. The results show that the sphagnum/diatomite composite humidity-controlling materials have good mold-inhibiting properties. The MgO and C₂S in the modified admixture are the mold-inhibiting constituents of sphagnum/diatomite composite humidity-controlling materials for the active O₂^- and hydroxide ion (OH^-) produced by them could act on the spores of mold to inhibit or kill mold through destroying the cell structure.

Key words： humidity-controlling material modified admixture mold-inhibiting property mold-inhibiting mechanism

Published: 14 July 2020

CLC number:

TB34

Fund:This work was financially supported by the National Natural Science Foundation of China (51362021) ,Technology Projects of Jiangxi Water Conservancy Department (KT201331).

About author:: Mingyu Hu, a native of Yichun, Jiangxi Province, was born in 1958. She is a professor and doctoral supervisor of Nanchang University. She is mainly engaged in the research of ecological environment materials, building energy-saving materials and building structural materials.

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	sHU Mingyu
	WANG Hongying
	LIU Zihang
	HU Yuqian

Cite this article:

sHU Mingyu,WANG Hongying,LIU Zihang, et al. Study on Mold-inhibiting Sphagnum/Diatomite Composite Humidity-controlling Material[J]. Materials Reports, 2020, 34(14): 14051-14056.

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http://www.mater-rep.com/EN/10.11896/cldb.19060193 OR http://www.mater-rep.com/EN/Y2020/V34/I14/14051

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