منابع مشابه
Melamine-Bridged Alkyl Resorcinol Modified Urea– Formaldehyde Resin for Bonding Hardwood Plywood
A powdery product was obtained by the reaction of methylolated melamine with alkyl resorcinols to form melamine-bridged alkyl resorcinols (MARs). The effects of the addition of this powder on the bonding strength and formaldehyde emission of urea–formaldehyde (UF) resins were investigated. Three types of UF resins with a formaldehyde/urea molar ratio of 1.3 synthesized by condensation at pH 1.0...
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The curing behavior of lignin-based phenol-formaldehyde (LPF) resin with different contents of nano-crystalline cellulose (NCC) was studied by differential scanning calorimetry (DSC) at different heating rates (5, 10 and 20 ̊C/min) and the bonding property was evaluated by the wet shear strength and wood failure of two-ply plywood panels after soaking in water (48 hours at room temperature and f...
متن کاملMaterializing a Design with Plywood
This paper is presentation of resulting physical models that were used to explore the relationship between design modeling in CAD and digital fabrication with plywood sheets. We explored a process in making tabletop models with digital fabrication machines and thin plywood sheets. Each was built from combination of predetermined wood joining techniques and structures. These models are believed ...
متن کاملPlastic Coating of Plywood Using Extrusion Technique
The target was to study and develop industrially suitable methods to apply thermoplastic coatings on plywood. Typically, wear and climatic resistance for wooden sheets, such as chip board and plywood, is achieved by thermosetting resin coating (e.g. phenolformaldehyde). However, economical and environmental issues are driving towards thermoplastic coatings (e.g. polyethylene) in such products. ...
متن کاملDevelopment of planning system for plywood production using "matrix designer"
The paper describes research and development of a software system for plywood mill operation planning. Various tasks related to planning of plywood operation can be successfully solved with the use of specialized software. The paper describes solution of the problem of calculating monthly production plans, which requires the use of advanced mathematical models and optimization algorithms. There...
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ژورنال
عنوان ژورنال: Research in Agricultural Engineering
سال: 2016
ISSN: 1212-9151,1805-9376
DOI: 10.17221/39/2015-rae