the acrylated epoxidized soy oil (aeso) was synthesized from epoxidized soy oil and its properties were investigated.  wheat straw particle boards were produced by the synthesized resin with 8% and 13% contents based on straws weight at three pressing times: 8,10 and 12 min. boards’ modulus of rapture, modulus of elasticity, internal bonding, minimum degree of thickness change and water absorpt...

Effects of two different modified treatments were investigated relative to the chemical and mechanical properties pretreated corn stalk particles their composites prepared with a lignosulfonate (ML) binder. Corn (CP) first by treating oxalic acid in ultrasonic conditions (pretreated particles, PCP). These then treatment either laccase-vanillin system ultrasound (LU) or polyethylenimine-glutaral...

The aim of this study was to investigate the applicability sugar beet pulp (SBP) in particleboard production as a substitute for wood material. Two variants board density, 650 kg/m3 and 550 kg/m3, containing 0%, 25% 50% SPB, were evaluated. During following features measured: modulus rupture (MOR), elasticity (MOE), thickness swelling (TS) water absorption (WA). results showed that boards up SB...

Modulus of elasticity of flapper valve material is an important parameter for compressor design since it can affect efficiency and life time of the compressor. Modulus of elasticity is usually considered as a material constant. Actually, it can vary with material orientations and conditions and even environments such as temperature will also affect this value. Therefore, the parameters that can...

In this paper, dynamic MOE and static MOE of short-length radiata pine specimens produced for finger jointing were measured using non-destructive technique and correlated to each other. In order to obtain reliable static MOE data, 36 mm thickness shooks as well as the matched samples of reduced thickness (15mm) were tested, and the effect of annual growth rings on dynamic and static MOE is also...

The prediction of the modulus elasticity (MOE) five species different spectrum density woods, namely, Populus × euramericana I-214 (Poplar), Fagus sylvatica L. (Beech), Quercus pyrenaica (Oak), Paulownia elongata S.Y.Hu (Paulownia) and Pinus sylvestris (Scots pine) were examined through natural frequency vibration on cantilevered beams (transverse direction) ultrasound (longitudinal direction)....

Carbon fiber (CF)-filled fiberboard specimens for electromagnetic (EM) shielding applications were produced in this study by mixing CF with wood (WF). The aim of work was to the panel properties different loadings (1%, 2%, 3%, 5%, and 10%) CF. mechanical, physical, interference (EMI) medium density (MDF) analyzed. effectiveness (SE) CF1 sample 23.5 dB 35.0 frequency range 8.2 GHz 12.4 GHz. maxi...

In this study, bending and compression strength tests were performed to investigate effect of composition layer layout Larix cross-laminated timber (CLT) on mechanical properties. The CLT consists five laminae, specimens classified into four types according grade layer. layer’s composited as follows 1) cross-laminating layers in major minor direction (Type A), 2) external internal applied B). E...

Radial and between-clone variations in stress-wave velocity, air-dry density (AD), mechanical properties six clones of 5-year-old Acacia auriculiformis trees planted Vietnam were investigated. The potential to predict modulus elasticity (MOE) rupture (MOR) using velocity standing (SWVT) or small specimens (SWVS) was also examined. examined SWVT, SWVS, wood differed significantly among clones, p...