The influence of modified zeolite powder on the humidity control performance of environmental protection coatings
REN Ni
LI Yuxin
GUAN Yan
LUO Shitong
CHANG Jun
Abstract：Combined with XRD,SEM,MIP and other microscopic analysis methods,the influence mechanism of zeolite powder(ZP)on moisture control performance of environmental protection coating based on magnesium oxysulfide(MOS)was described.The results show that the moisture regulating property of zeolite powder can be improved by acid modification.The moisture absorption rate and moisture release rate of zeolite powder modified by 10%hydrochloric acid are 10.28%and 4.38%.The moisture absorption rate and moisture release rate of MOS coating mixed with 30%zeolite powder after hydrochloric acid treatment are 4.23%and 0.30%.After acid modification,the agglomeration of zeolite powder disappears,the clinoptilolite phase in zeolite powder decreases.At the same time,the crystallinity of the main hydration product 5Mg(OH)2·MgSO4·7H2O phase of MOS increases.The total porosity of MOS based environmental protection coating added with 30%ZP after hydrochloric acid treatment increased to 18.5%,and the pore content above 100 nm reached 35.0%.
Keywords：zeolite powderacid modificationMOS coatinghumidity control property
Publication Date：2025-08-25
Online Publishing Date：2025-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 55-59 )