Wood Research Journal : Journal of Indonesian Wood Research Society
Vol 12, No 1 (2021): Wood Research Journal

Improving The Physical Properties of Young Teak Wood Through Phenol Formaldehyde Compregnation

Agung Dwi Saputra (Department Forest Products Technology, Faculty of Forestry, Universitas Gadjah Mada Jogja 55281, Indonesia)
Joko Sulistyo (Department Forest Products Technology, Faculty of Forestry, Universitas Gadjah Mada Jogja 55281, Indonesia)



Article Info

Publish Date
30 Nov 2021

Abstract

Young teak wood exhibits inferior properties due to a high proportion of juvenile wood and sapwood. The modification through compregnation of phenol formaldehyde is required to improve wood qualities. Therefore, this study aimed to observe the possibility of improving the physical properties of young teak wood (15 years) using phenol formaldehyde compregnation at various concentrations (5%, 10%, 15%) and pressing times (15, 30, 60 minutes). The results showed that phenol formaldehyde concentration produced retention with a maximum value of 31.19 kg/m3. Based on wood without treatment (controls), the compregnation significantly increased the redness (a*) level by 45.57% and the specific gravity by 7.93%. The decreasing levels after treatment were observed in the brightness (L*) (by 36.56%), the yellowness (b*) (by 38.40%), and air-dried moisture contents by (by 5.44%). Furthermore, the reduction in hygroscopicity was observed in an equilibrium moisture content level in various relative humidity, as well as in increasing the stability dimension, though in a small magnitude.

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Journal Info

Abbrev

wrj

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Wood Research Journal is the official journal of the Indonesian Wood Research Society. This journal is an international medium in exchanging, sharing and discussing the science and technology of wood. The journal publishes original manuscripts of basic and applied research of wood science and ...