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Initial study of micronized zinc borate as flame retardant in Eucalyptus grandis from Uruguay

Published online by Cambridge University Press:  25 September 2018

Álvaro Camargo  and
Claudia M Ibañez
Álvaro Camargo*
Affiliation:
Instituto Superior de Estudios Forestales, Sede Tacuarembó, Universidad de la República, Tacuarembó, Uruguay
Claudia M Ibañez
Affiliation:
Instituto Superior de Estudios Forestales, Sede Tacuarembó, Universidad de la República, Tacuarembó, Uruguay
*
*(Email: alvaro.camargo@cut.edu.uy)
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Abstract

Zinc borate has long been used as a protector for wood products due to its fungicide, insecticide and flame retardant properties. In this initial study, its capacity as a flame retardant when applied to Eucalyptus grandis wood is evaluated; micronized zinc borate, synthesized from zinc oxide and boric acid in our laboratory was used. The methodology used in the study is the use of the Vandersall tunnel, which allowed analyzing parameters such as the flame spread, the carbonization index, the carbonization area and the wood weight loss. The results show a remarkable improvement in these parameters after the application of micronized zinc borate. For the longest fire exposure time, the percentage decrease of each evaluated parameter is, for tangential and radial plane respectively: 31.27-43.00% for flame spread, 36.66-40.86% for carbonization area, 33.01-52.49% for carbonization index and 19.86-57.80% for mass loss.

Keywords

Znscanning electron microscopy (SEM)thermogravimetric analysis (TGA)
Type
Articles
Information
MRS Advances , Volume 3 , Issue 61: Materials Science Young Researchers of Uruguay , 2018 , pp. 3551 - 3556
Copyright
Copyright © Materials Research Society 2018 

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