KETERAWETAN 41 JENIS KAYU TERHADAP BAHAN PENGAWET CCB

Abstract

Most of the Indonesian wood species exhibit a wide differences in treatability. This may reduce effectiveness in loading several wood species simultaneously. This study investigated treatability of 41 wood species through full-cell process using CCB (copper-chrome-boron) preservatives. Representative wood samples, measuring 5 cm wide, 5 cm thick and I 00 cm long were preparedfrom each species and then remain to reach the air-dry condition. Pressures imposed during the process were consisted of initial and final vacuum al 500 mm Hg for 15 minutes, and a hydraulicpressure of 10 atmospheresfor 60 minutes. The results revealed that 20 of the study species were classified easy, I 2 species were moderate, 5 species were difficult, and the remaining 4 species were very difficult. Wood species within the class could be treated simultaneously. Results also indicated that there were great variations of chemical retention within the same class of penetration.

Keywords

• Keterawetan, proses sel penuh, retensi, penetrasi, CCB (tembaga-khrom-boron)