Background The issue of formaldehyde exposure in homes is long-standing and has been studied over time. Formaldehyde is frequently used in plywood, fiberboard, resins, glues, and several other construction components. In the past, formaldehyde was also used in insulation of many homes. In March of 1982, the U.S. Consumer Product Safety Commission (CPSC) called for a ban on urea foam formaldehyd...

Due to the high chemical activity of its filler, fiberboard is a unique material, it's formation can be ensured by reactions wood components. However, under hot pressing modes, typical for dry-process boards, do not have time go through required extent, which requires use special modifiers that enhance fiber. Bi- and polyfunctional compounds - sucrose, carbamide, citric acid were investigated a...

In this study, the impact bending strengths and specific impact bending strengths were determined for solid wood and laminated veneer lumber (LVL) produced from eucalyptus (Eucalyptus grandis W. Hill ex Maiden), poplar (Populus x euramericana I-214), and beech (Fagus orientalis L.) woods using urea formaldehyde (UF), melamine urea formaldehyde (MUF), and phenol formaldehyde (PF) adhesives. The ...

In this study, an experimental phenol–formaldehyde resin with 20% phenol replacement by cashew nut shell liquid (CNSL) was studied and compared with a conventional phenol–formaldehyde resin synthesized totally from petrochemical rawmaterials. The resins were characterizedwith standard lab analysis for their physicochemical specifications, while their thermal properties were studied with thermog...

Abstract The objective of the study is to evaluate properties plywood made from rubberwood veneers thermally treated at various temperatures. Rotary-peeled were 160, 170, 180, and 190 °C under 1 bar pressure. 5-ply panels produced using melamine urea formaldehyde (MUF) resin as binder. Dimensional stability, i.e., water absorption (WA) thickness swelling (TS) well mechanical assessed. results d...