Dimensional stability and water repellency of European aspen improved by oxidized carbohydrates

BioResources

关键词: Antiswelling efficiency (ASE);    European aspen;    Fenton’s reagent;    Oxidized carbohydrates;    Water repellent effectiveness (WRE);   

DOI  :  

来源: DOAJ

【 摘 要 】

Small samples from European aspen (Populus tremula L.) were impregnated with carbohydrates oxidized by Fenton’s reagent using water in a vacuum, followed by heating in an oven at 103 °C. An antiswelling efficiency (ASE) of around 45% for wood treated with oxidized glucose and 35% for wood treated with oxidized sucrose was obtained. Samples treated with oxidized carbohydrates gave water repellent effectiveness (WRE) values over 35%. The decrease in cell wall thickness during impregnation was about 18% less in the presence of oxidized glucose than samples only treated with Fenton’s reagent. An ASE of 20% for the wood samples that had been treated with oxidized glucose was obtained after 7 days of soaking in water. The reasons for the improvement in dimensional stability are discussed in this work.

【 授权许可】

Unknown