Volume 39 (2024-2025)
Volume 38 (2023-2024)
Volume 37 (2022-2023)
Volume 36 (2021-2022)
Volume 35 (2020-2021)
Volume 34 (2019-2020)
Volume 33 (2018-2019)
Volume 32 (2017-2018)
Volume 31 (2016-2017)
Volume 30 (2015-2016)
Volume 29 (2014-2015)
Volume 28 (2013-2014)
Volume 27 (2012-2013)
Volume 26 (2011-2012)
Volume 25 (2010-2011)
Volume 24 (2009-2010)
Volume 23 (2008-2009)
Volume 22 (2007-2008)
Volume 21 (2006-2007)
Volume 20 (2005-2006)
Volume 19 (2004-2005)
Volume 18 (2003-2004)
Volume 17 (2002-2003)
Volume 16 (2002-2003)
Volume 15 (2001-2002)
Volume 14 (2001-2002)
Volume 13 (2001)
Volume 12 (2000-2001)
Volume 11 (2000-2001)
Volume 10 (2000-2001)
Volume 9 (2000)
Volume 8 (1999)
Volume 7 (1999)
Volume 6 (1998)
Volume 5 (1998)
Volume 4 (1997)
Volume 3 (1997)
Volume 2 (1996)
Volume 1 (1995)
Use soda lignin and modify it with furfural as adhesive to make plywood

Mohammad Reza topa esfandiyari; Mohammad Talaei poor; Habibollah Khademi Eslam; Seeyed Ahmad Mirshokraie; behzad baziyar

Volume 36, Issue 4 , December 2021, , Pages 293-304

https://doi.org/10.22092/ijwpr.2021.353955.1669

Abstract
  This study uses soda lignin to modify it with furfural as adhesive on the physical and mechanical properties of plywood Poplar wood. Producing plywood, pure Lignin (L.100%), lignin-furfural 30% (L.70-F.30), lignin- furfural 60% (L.40-F.60) were used as the adhesive at three different levels ( 120 140 ...  Read More

Assess the features of puplar plywood using lignin-glyoxal adhessive

Mohammad Reza topa esfandiyari; Mohammad Talaei poor; Habibollah Khademi Eslam; Seeyed Ahmad Mirshokraie; Behzad Bazyar

Volume 35, Issue 2 , July 2020, , Pages 127-137

https://doi.org/10.22092/ijwpr.2020.127993.1573

Abstract
  This study uses the Lignin-Glyoxal adhesive to replace chemical resins with environmental compounds producing plywood. producing plywood, pure Lignin (L.100%), lignin- glyoxal 15% (L.85-G.15), lignin-glyoxal 30% (L.70-G.30) and Urea-formaldehyde (control) were used as adhesive at 160 gr/m2 level. Accompanied ...  Read More

Pulp and paper
Studying on the Soda and Dioxane Lignin of Bagasse using Derivatization Followed by Reductive Cleavage (DFRC)

vida haji Aghaei; Seeyed Ahmad Mirshokraie; Tayyebe partovi

Volume 29, WINTER 4 , February 2015, , Pages 538-549

https://doi.org/10.22092/ijwpr.2014.8455

Abstract
  In this study, the structure of Soda (soluble fraction in ethanol) and Dioxane lignins of bagasse were studied by using derivatization followed by reductive cleavage (DFRC) method and some techniques including gel permeation chromatography, gas chromatography-mass spectrometry and 13C-nuclear magnetic ...  Read More

Physics and Mechanical Wood
Fracture Behavior of Beech-Furan Wood Polymer under Mode I

Hamideh Abdolzadeh; Ghanbar Ebrahimi; Mohammad Layeghi; Mehdi Ghasemieh; Seiad Ahmad Mirshokraei

Volume 29, WINTER 4 , February 2015, , Pages 609-622

https://doi.org/10.22092/ijwpr.2014.8456

Abstract
  In this study, characteristics of wood-polymer fracture under mode I were investigated by double cantilever beam. In this regard, the properties of furfurylated specimens with three different levels of furfurylation (20%, 30% and 65%) were evaluated in both RL and TL systems. Results indicated that load-displacement ...  Read More

Studing the effect of reducing agents (sodium borhydrade and sodium dithionite) on chemical structures of poplar kraft and bagasse soda alkali lignin by FT-IR spectroscopy

Jafar Azimvand; Seeyed Ahmad Mirshokraie; Ali Abdolkhani

Volume 27, Issue 3 , September 2012, , Pages 556-568

https://doi.org/10.22092/ijwpr.2012.116219

Abstract
  In this study, the chemical changes of functional groups (C=O) and double bond (C=C), induced in the structures of poplar kraft lignin and bagasse soda lignin were investigated. The reducing effect of sodium borohydride and sodium hydrosulfite, followed by the UV irradiation on these two compounds were ...  Read More

Pulp and paper
The Investigation of Acetylation and Anti-Oxidant Effect on Weathering of wood Plastic Composites By Means of FTIR and Color Metry (Color measurement)

Pyvand Darabi; Hamideh Abdolzadeh; Ali naghi Karimi; Seeyed Ahmad Mirshokraie; Kazem Doosthoseini

Volume 25, Issue 1 , September 2010, , Pages 70-79

https://doi.org/10.22092/ijwpr.2010.117268

Abstract
  In this study capability of acetylated poplar flour in manufacture of high density poly ethylene composite which expose to accelerated weathering, was investigated. The acetylation degrees at medium and zero (control) levels, use of anti- oxidant and duration of weathering were considered as variables ...  Read More

Pulp and paper
Investigation on possibility of making durable paper with imported Eucalyptus pulp

Alireza Khakifiroz; Seeyed Ahmad Mirshokraie; Amir homman Hamasi; Hababalah Khadmieslam; Mohammad Talaei poor

Volume 24, Issue 1 , September 2009, , Pages 44-57

https://doi.org/10.22092/ijwpr.2009.117355

Abstract
  Permanent or durable paper is a kind of paper that has a high degree of permanence and is likely to retain the properties which influence readability and document handling when storing in a protected environment for a long period. Permanence depends mainly on the chemical stability of the paper itself. ...  Read More

Chemistry of wood
Chemical structure elucidation of milled wood lignin and cellulytic lignin from Poplar

Sayed ahmad Mirshokraei; Ali Abdolkhani; Alinaghi Karimi

Volume 23, Issue 2 , October 2008, , Pages 102-122

https://doi.org/10.22092/ijwpr.2008.117409

Abstract
       In this paper, a novel enzymatic method was evaluated for isolation and purification of wood lignin. The chemical structure of enzymatic lignin (Cellulytic lignin) was compared with conventional Bjorkman method (Milled wood lignin). The chemical structure elucidation was performed ...  Read More

Pulp and paper
The Study of Fiber Fines and Its Effects On Optical and Physical Propertie of Newsprint Paper from CMP Pulp

Amir mohsen Nazeri; Mohammad Talaeipoor; Seeyed Ahmad Mirshokraie

Volume 22, Issue 1 , October 2007, , Pages 29-40

https://doi.org/10.22092/ijwpr.2007.117419

Abstract
  The present study deals with effects of CMP  fines on optical and physical properties of newsprint papers, for which, different batches for CMP fines (0%, 10%. 20%. 30%) of totally 80% pulp  is taken, Where the remaining 20% of imported long fiber pulp was taken as fixed amount . The study ...  Read More

Composite wood products
STUDY ON THE POSSIBILITY OF MANUFACTURING PARTICLEBOARD WITH PAPER SLUDGE AND WOOD CHIPS

asghar tarmian; Kazem Doosthosseini; Seeyed Ahmad Mirshokraie; Mohammadmehdi Faezi poor

Volume 19, No., 2 , October 2004, , Pages 137-158

https://doi.org/10.22092/ijwpr.2004.117565

Abstract
  Beneficial utilization of large quantity of paper sludge from Mazandaran Wood & Paper Industry in particleboard manufacturing has been studied. Single-layer and three-layer particleboard (paper sludge as a surface layer) were produced. Urea-formaldehyde resin at two levels of 10 and 12 percent and ...  Read More