Preparation and properties of thermal insulation coatings with a sodium stearate-modified shell powder as a filler

Waste shell stacking with odor and toxicity is a serious hazard to our living environment. To make effective use of the natural resources, the shell powder was applied as a filler of outdoor thermal insulation coatings. Sodium stearate (SS) was used to modify the properties of shell powder to reduce...

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Published in矿物冶金与材料学报：英文版 Vol. 24; no. 10; pp. 1192 - 1199
Main Author Qiang Tang;Ya-mei Zhang;Pei-gen Zhang;Jin-jie Shi;Wu-bian Tian;Zheng-ming Sun
Format Journal Article
LanguageEnglish
Published 2017
Subjects
coatings
heat
insulation
powder
resistance
scrub
shell
sodium
stearate
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Summary:Waste shell stacking with odor and toxicity is a serious hazard to our living environment. To make effective use of the natural resources, the shell powder was applied as a filler of outdoor thermal insulation coatings. Sodium stearate (SS) was used to modify the properties of shell powder to reduce its agglomeration and to increase its compatibility with the emulsion. The oil absorption rate and the spectrum reflectance of the shell powder show that the optimized content of SS as a modifier is 1.5wt%. The total spectrum reflectance of the coating made with the shell powder that is modified at this optimum SS content is 9.33% higher than that without any modification. At the optimum SS content of 1.5wt%, the thermal insulation of the coatings is improved by 1.0?C for the cement mortar board and 1.6?C for the steel plate, respectively. The scouring resistance of the coating with the 1.5wt% SS-modified shell powder is three times that of the coating without modification.
Bibliography:11-5787/TF
ISSN:1674-4799
1869-103X