The effect of dielectric barrier discharge (DBD) plasma treatment was studied on the surface characteristics and coating performance transparent epoxy resin particleboard (PB) medium-density fiberboard (MDF). performed at three energies (10, 15, 20 kW) distances from nozzle 20, 30 mm). Analyzing samples by Fourier transform infrared (FTIR) spectroscopy X-ray photoelectron (XPS) indicated change...

An extensive test program was conducted to develop nail withdrawal design values for wood structural panels. Tested variables included: nail type (plain shank vs. deformed shank), panel type (plywood vs. OSB) and thickness, and exposure condition. Testing followed the procedures described in ASTM D1761. Based on the test results, the recommended allowable nail withdrawal strength for plywood an...

The dynamic viscoelasticity of full-size wood composite panels (WCPs) under the free-free vibrational state were determined by a vibration testing method. Vibration detection tests were performed on 194 pieces of three types of full-size WCPs (particleboard, medium density fiberboard, and plywood (PW)). The dynamic viscoelasticity from smaller specimens cut from the panels was measured using a ...

Key elastic properties of full-sized wood composite panels (WCPs) must be accurately determined not only for safety, but also serviceability demands. In this study, the modal parameters of full-sized WCPs supported on four nodes were analyzed for determining the modulus of elasticity (E) in both major and minor axes, as well as the in-plane shear modulus of panels by using a vibration testing m...

Wood-based composite panels generally are first tested out-of-plane in the primary panel direction followed by the cross panel direction, but rarely edgewise. While most applications use wood-based composites in the flat-wise orientation and only need the out-of-plane properties, there are construction configurations where edgewise properties are needed for improved design configurations. A squ...

Although paramagnetic contrast agents have an established track record in medical uses of magnetic resonance imaging (MRI), only recently has a contrast agent been used for enhancing MRI images of solid wood specimens. Expanding on this concept, wood veneers were treated with a gadolinium-based contrast agent and used in a model system comprising three-ply plywood panels fabricated from two unt...

Wood based panels are composed of wood or other lignocellulosic material broken down into small elements and then reconstituted to form new products using different binders under pressure and heat. Production of wood composites such as particleboard and fiberboard has been constantly increasing in the U.S. for the last 25 years. Both panel products are extensively used as a raw material in the ...