Influence of thermo-vacuum treatment on bending properties of poplar rotary-cut veneer

iForest - Biogeosciences and Forestry

Negro F¹  Cremonini C¹  Zanuttini R¹  Castro G²  Rosso L²  Allegretti O³  Cuccui I³ 

[1] C.N.R. IVALSA, S. Michele all’Adige, TN (Italy);C.R.E.A. - Unità di Ricerca per le Produzioni Legnose fuori Foresta, Casale Monferrato, AL (Italy);Università degli Studi di Torino, DISAFA,Torino (Italy);

关键词: Populus;    Poplar Wood;    Veneer;    Thermal treatment;    Bending Strength;   

DOI  :  10.3832/ifor1955-009

来源: DOAJ

【 摘 要 】

The present paper investigates the influence of thermo-vacuum treatment at 170, 190 and 210 °C on the mechanical and physical properties of poplar wood rotary-cut veneers obtained from two different poplar clones (’I-214’ and ’Lena’). The modulus of rupture in bending was determined according to a method derived from European Standard EN-310 and previously validated by the authors, while the density was determined on the basis of EN-323. With both clones no significant decrease was recorded either in bending strength or in density with treatment temperatures up to 190 °C. On the contrary, at 210 °C a highly significant decrease in modulus of rupture (’I-214’: -18%; ’Lena’: -15%) was recorded; the density showed a similar, though lower, trend (’I-214’: -5 %; ’Lena’: -8.5 %).

【 授权许可】

Unknown