Pengaruh Komposisi Perekat Lignin Resorsinol Formaldehida terhadap Emisi Formaldehida dan Sifat Fisis-Mekanis Kayu Lamina

Abstract

The influence of the composition of lignin resorcinol formaldehyde (LRF) adhesive on formaldehyde emission and physical-mechanical propertics of lnminated ivood has been carried out in the present researches. It was found that LRF composition signijicantly influences formaldehyde emission of laminated wood and its physical-niechanimlproperties. Formaldehyde emision of LRF resin in mole ratio of I : 0.5 : 2, respectively for t, R, and F met the Japanese Standard for F, clmsijication. However, the lowest formaldehyde emission was found with the LRF mole ralio of I : 0,9 : 2. The modulus of rupture (MOR) and modulus of elasticity (M0E)of the laminated wood was higher compared to those of original wood at the same size.