Thermal Parameters of Beech Wood Dust

Chemical Modification of Beech Wood: Effect on Thermal Stability

Beech sawdust was reacted with phthalic (PA) and maleic (MA) anhydrides for chemical modification. The influence of reaction time and anhydride amount was investigated. IR spectra gave evidence of wood esterification. Thermogravimetric investigation of chemically modified wood indicated a better thermal stability (mainly for wood treated with phthalic anhydride) in comparison with the untreated...

Symptoms, airway responsiveness, and exposure to dust in beech and oak wood workers.

OBJECTIVES To investigate the relation between levels of cumulative exposure to wood dust and respiratory symptoms and the occurrence of bronchial hyperresponsiveness among beech and oak workers. METHODS 114 Male woodworkers from five furniture factories and 13 male unexposed controls were examined. The unexposed control group was supplemented by 200 male historical controls. Statistical anal...

Wood Dust

ed from the death certificates. Woodworking was associated with an ageand raceadjusted odds ratio of 0.9 (95% CI, 0.7-1.0). The odds ratio for occupations ìn wood products industries was 0.7 (0.5-0.9) and that for carpenters was 0.9 (0.7-1.1). Fincham et aL. (1993) reported on a case-control study of cancers at several sites, using data from the Alberta Cancer Registry, Canada. On the basis of ...

Wood charcoal dust pneumoconiosis.

Influence of hydrothermal treatment on the dimensional stability of beech wood

Hydrothermal treatment of wood material products with many interesting properties such as enhanced dimensional stability, lower equilibrium moisture content and increased biological durability. The effects of hydrothermal treatment on dimensional stability, oven dry density and water absorption of beech wood (Fagus Orientalis) naturally grown, has been studied in present research that extremely...