Abstract:

Guangxi has abundant resources plantation eucalypt wood, but it has lots of disadvantages such as split, dimension stability and durability poor. To enhance its ranges of use and product added value, so the author made a study on high temperature heat treatment of it by the single factor method. The characteristics of FTIR and the effect of temperature and time of heat treated on the equilibrium moisture content (EMC) of heat-treated wood (plantation eucalypt) had been researched in this paper. The results indicated that with the heat treated temperature and time increased, the EMC of wood decreased and the intensity of absorption peak of hydroxyl decreased significantly in heat treated temperature 165-210℃ and time in 1-4 h range; treated wood in 210℃ compared with EMC of untreated wood, that was decreased by 43.12%. Party's analysis showed that heat temperature affected to EMC even more notable. The results showed that decrease significantly used high temperature heat treatment to improve characteristics of plantation eucalypt wood and could greatly enhance the dimension stability.