Effects of drying temperature and artificial UV irradiation on the pH of veneer surfaces, water absorption, thickness swelling, as well as shear strength of plywood manufactured from untreated and treated veneer sheets were evaluated. Rotary cut veneer sheets from beech (Fagus orientalis Lipsky) log were selected. The veneer sheets were dried at either 100C or 180C after peeling. Then the sur...

PT. Sumber Graha Sejahtera (Sampoerna Kayoe) is a company that produces plywood products. In identification, the still waste in its production process. Therefore, efforts are needed to minimize order make process more efficient and identify whether environmentally friendly with consideration of level eco efficiency. This research includes steps, among others, by analyzing value stream mapping f...

Plywood made of poplar are limited to indoor usages since exhibits a rather low natural durability. Recently, wood heat treatments have been applied improve properties such as decay susceptibility and dimensional stability. This study examines the potential exposing plywood treatment extend applications this engineered product outdoor end uses, new markets accordingly. panels were glued with tw...

Interlocking Particle Structures (IPS) are geometrically stable assemblies, usually fabricated from plate type elements that interconnected by slotted joints. IPS demountable and their components have the potential to be used reused in different structures configurations. This paper explores applicability of birch plywood panels, which characterized a high surface hardness, for this structural ...

The twisted plywood architecture, known as the Bouligand structure, is a ubiquitous biological and synthetic fibrous composite structure, analogous to that of cholesteric liquid crystals. Twisted plywoods can show ideal or non-ideal structures and are formed via equilibrium or non-equilibrium liquid crystal self-assembly processes. A key to the structure characterisation of plywood films is 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...

Physical and mechanical properties were evaluated on cross-laminated panels (plywood) fabricated with three plantation species (Cordia alliodora, Gmelina arborea and Vochysia ferruginea) from tropical climates in Costa Rica. The panels were glued with urea-formaldehyde resin modified with nanoclay at four concentrations (0,75; 1,00; 1,50 and 2,00 %) and unmodified resin. It was determined that ...

The Plywood company in this study was able to produce 6,000m3/ year of plywood, but during 2018 and 2019 only provide 2,905.14 m3/year 1,120.73 m3/year. Production is far below the production capacity. This research will apply lean manufacturing concept process a plywood company. uses value stream mapping (VSM), analysis tools (VALSAT), activity (PAM), Pareto diagrams, root cause analysis. It f...