Mold and larvae resistance of wood-based composites incorporating sodium fluoride

The efficacy of particleboards manufactured with sodium fluoride against mold fungi and Hylotrupes bajulus (L.) larvae was tested. Laboratory-size particleboards were manufactured from untreated wood particles with inclusion of fine sodium fluoride (NaF) at the 1, 1.5, and 3% levels relative to tota...

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Bibliographic Details
Published in:Bioresources 2020-02, Vol.15 (1), p.20-27
Main Authors: Tascioglu, Cihat, Umemura, Kenji, Kusuma, Sukma, Kose, Coskun, Yalcin, Mesut, Akcay, Caglar, Yoshimura, Tsuyoshi
Format: Article
Language:English
Subjects:
Biocides
Fluoridation
Fluorides
Fungi
Hot pressing
Hylotrupes bajulus
Insects
Laboratories
Larvae
Leaching
Manufacturing
Manufacturing industry
Moisture content
Mold
Mold growths
Particle board
Retention
Sodium
Sodium fluoride
Wood
Wood preservatives
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Summary:The efficacy of particleboards manufactured with sodium fluoride against mold fungi and Hylotrupes bajulus (L.) larvae was tested. Laboratory-size particleboards were manufactured from untreated wood particles with inclusion of fine sodium fluoride (NaF) at the 1, 1.5, and 3% levels relative to total particle weight. Sodium fluoride was introduced as powder during the manufacturing process just before blending resin with wood particles. The laboratory mold test indicated that even the lowest level of retention of NaF with or without leaching significantly reduced mold growth on particleboard surfaces when compared to the untreated control specimens. The increased retention of NaF from 1% to 3% further suppressed mold growth towards lowest levels even on leached specimens. The laboratory Hylotrupes bajulus larvae tests revealed that the particleboard environment with or without NaF is not appropriate for larvacidial activity. While the tested biocide, NaF, tested positive against mold growth on particleboard surfaces, no effect was determined relative to larval deaths.
ISSN:1930-2126
1930-2126
DOI:10.15376/biores.15.1.20-27