Wood preservative treatments are indispensable for wood used in severe environmental conditions. Decay occurs in preservative-treated woods due to the poor impregnation of sapwood; this problem has recently gained attention for Cryptomeria japonica kiln-dried logs. To clarify the causes of this phenomenon, the influence of drying temperature on the penetration of preservative into sapwood logs ...

In this work, the impregnation quality and mechanical properties of Pinus radiata D.Don treated with different copper nanoparticles (CuNP) solutions (named K1 K2) a commercial preservative (M) were studied. The pine wood was analyzed by two indicators, penetration retention. micro-distribution in qualitatively evaluated SEM-EDS, both samples containing CuNP those preservative. addition, some st...

Historically most residential wood preservatives were aqueous soluble metal formulations, but recently metals ground to submicron size and dispersed in water to give particulate formulations have gained importance. In this study, the specific role nano-zinc oxide (ZnO) particle size and leach resistance plays in termite mortality resulting from exposure to particulate ZnO-treated wood was inves...

BACKGROUND We investigated the particles released due to abrasion of wood surfaces pressure-treated with micronized copper azole (MCA) wood preservative and we gathered preliminary data on its in vitro cytotoxicity for lung cells. The data were compared with particles released after abrasion of untreated, water (0% MCA)-pressure-treated, chromated copper (CC)-pressure-treated wood, and varnishe...

Copper Chrome Arsenic (CCA) is a potent wood preservative. It currently the dominant preservative used in Aotearoa (New Zealand). Internationally, CCA has been phased out many jurisdictions over last decades due to health and environmental concerns. This review summarises current knowledge about risks of treated timber, revisits risk assessment New Zealand authorities timber discusses challenge...