Physico-Mechanical Properties and Formaldehyde Abatement of Particleboard Mixed with Gingko Tree Leaves

은행나무 잎을 혼합하여 제조한 파티클보드의 물리.기계적 성질과 포름알데히드 저감효과

  • Park, Sang-Bum (Division of Wood Processing, Dept. of Forest Products, Korea Forest Research Institute)
  • 박상범 (국립산림과학원 임산공학부 목재가공과)
  • Published : 2006.12.30

Abstract

This study was conducted to find potentialities of the leaves of gingko tree (Gingko biloba L.) which has been planted as a roadside tree in Korea because of its resistance on air pollution, insect, fungi, etc. Various amounts of the leaves were mixed with wasted wood particles to manufacture particleboard. Their influences on physical and mechanical properties and the formaldehyde emission of PB were investigated. Physical and mechanical properties, such as density, modulus of rupture (MOR), and internal bond (IB) strength, of manufactured particleboard were not much different from those of control board. Formaldehyde emission values were decreased with increasing amount of leaves in PB prepared. Especially, particleboard made with 3 percent of leaves was decreased to $1.66mg/{\ell}$ in formaldehyde emission, which is about 40% lower emission than that of control. From these results, the leaves of gingko tree may be considered as a formaldehyde emission lowering additive in a functional PB manufacturing process.