title: The reduction of formaldehyde and VOCs emission from wood-based flooring by green adhesive using cashew nut shell liquid (CNSL).
abstract: To discuss the reduction of formaldehyde and volatile organic compound (VOC) emissions from engineered flooring, cashew nut shell liquid (CNSL)-formaldehyde (CF) resin and CF/PVAc resin were applied for the maple face of the veneer bonding on plywood. The CF resin was used to replace urea-formaldehyde (UF) resin in the formaldehyde-based resin system in order to reduce formaldehyde and VOC emissions from the adhesives used between the plywoods and fancy veneers. For the CF/PVAc resins, 5, 10, 20 or 30% of PVAc was added to the CF resin. The CF/PVAc resins showed better bonding than the commercial natural tannin adhesive with a higher level of wood penetration. The standard formaldehyde emission test and a VOC analyzer were used to determine the formaldehyde and VOC emissions, respectively, from the engineered floorings. The CF resin and CF/PVAc resin systems with UV coating satisfied the E(1) and E(0) grades of the Korean Standard. TVOC emission was slightly increased by the PVAc addition.
authors.affiliation: Green Building Materials Lab, School of Architecture, Soongsil University, Seoul 156-743, Republic of Korea. skim@ssu.ac.kr
authors.forename: Sumin
authors.initials: S
authors.lastname: Kim
mesh_terms: D000269:Adhesives; D031021:Anacardium; D005557:Formaldehyde / Q000737:chemistry*; D055549:Volatile Organic Compounds / Q000737:chemistry*; D014934:Wood
chemical_list: D000269:Adhesives; D055549:Volatile Organic Compounds; D005557:Formaldehyde