Low-formaldehyde emission composite particleboard manufactured from waste chestnut bur

Abstract Chestnut bur is an agro-waste material generated in the chestnut production. It a tannin-rich lignocellulosic which might be promising raw for low-formaldehyde composite particleboard production when using urea–formaldehyde (UF) as bonding adhesive. In this study, characteristics of were analyzed to assess its application value panel. Five-type particleboards manufactured from mixture bur/poplar particles with weight ratios 0/100, 25/75, 50/50, 75/25 and 100/0, UF resin was used The effects addition amount on physical, mechanical properties formaldehyde emission studied. results showed follows: (1) low cellulose, hemicelluloses lignin contents, but high extractives ash contents compared poplar wood. wood had similar fiber morphology. (2) Composite board relatively good performances could mix With increasing content, decreased, whereas dimensional stability increased. (3) total phenol content 13.79%. phenolic substance burs react free formaldehyde. Hence, effectively reduced. summary, waste suitable can not only utilized base material, also natural scavenger