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Detection of defects in joints using the variations in dynamic shear modulus and Correlation Coefficient factor in Beech Wood

Mostafa Kohantorabi; Mehran Rohnia

Volume 28, Summer 2 , June 2013, , Pages 238-257

https://doi.org/10.22092/ijwpr.2013.2789

Abstract
   In this study, detect of damage in scarf joint and finger joint using the variations in dynamic shear modulus values and Correlation Coefficient factor of the beech wood specimens was investigated. Numbers of 42 Samples were selected according to ISO 3129 international standard. ...  Read More

An analysis of the combined effects of isocyanate HMDI and maleic anhydride (MAPE) coupling agents on the mechanical properties of HDPE- wood flour composite

َAbdolah Shakeri; Vahid Reza Safdari; Mehran Rohnia; Amir Nourbakhsh

Volume 28, Summer 2 , June 2013, , Pages 290-300

https://doi.org/10.22092/ijwpr.2013.2934

Abstract
  Coupling agents in wood fiber reinforced plastic composites play an important role inimproving compatibility and adhesion between polar wood fiber and non-polar polymermatrices by forming bridges of chemical bonds between the fiber and the matrix. Maleatedpolyethylene (MAPE) and diisocyanate (HMDI) are ...  Read More