| Autor: |
Bergamonti, Laura, Berzolla, Alessia, Chiappini, Elisabetta, Feci, Elisabetta, Maistrello, Lara, Palanti, Sabrina, Predieri, Giovanni, Vaccari, Giacomo |
| Předmět: |
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| Zdroj: |
Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood; Jan2017, Vol. 71 Issue 1, p65-75, 11p, 1 Color Photograph, 1 Diagram, 4 Charts, 6 Graphs |
| Abstrakt: |
A novel treatment based on polyamidoamines (PAAs) for the preservation of wood against fungi and insects with a broad protection functionality, low effective concentration, and low environmental impact has been developed. PAAs were synthesized by nucleophile addition of ethanolamine (EtA) and/or 3-aminopropyltriethoxysilane (APTES) to N,N'-methylenebisacrylamide (MBA). The molar ratios in the tested formulation were: I) MBA:EtA = 1:1; II) MBA:APTES = 1:1; III) MBA:EtA:APTES = 1:0.5:0.5. These formulations, characterized by ESI-MS, NMR, FT-IR, were tested against: (a) the wood decay fungi (Coniophora puteana, Coriolus versicolor, and Poria placenta); (b) the subterranean termite Reticulitermes lucifugus, and the drywood termite Kalotermes flavicollis; (c) the woodborer Stegobium paniceum. Tests in combination with leaching showed that formulation II and III can be utilized as fungal wood preservatives for use classes 2-3 (EN 335:2013). In addition, all PAAs formulations were equally effective in preserving wood against the subterranean termite, and formulation II was most effective against drywood termite. On the other hand, the formulation I showed good efficacy against S. paniceum. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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