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)
Chemical conversion
Effect of tree age, thickness and depth of black poplar timbers on color change and wettability of wood after accelerated weathering

Saeed Hasani; Mohammad Talaei poor; behzad baziyar; Amir Homan Hemmasi; Saeed Mahdavi

Volume 38, Issue 2 , June 2023, , Pages 141-154

https://doi.org/10.22092/ijwpr.2023.360163.1732

Abstract
  AbstractIn this study, black poplar (Populus nigra) cut from Zanjan province was used in two age groups of 18 and 38- year-old. Timbers with thicknesses of 4, 5 and 6 cm were prepared from each age group. The prepared timbers were modified during the heat treatment process (Thermowood) at a constant ...  Read More

Investigating the effect of lignin on the negative effects of the torrefaction process in the production of briquettes from bagasse

Majid Salehi; Mohammad Talaei poor; Habibollah Khademi Eslam; Behzad Bazyar

Volume 37, Issue 4 , December 2022, , Pages 346-360

https://doi.org/10.22092/ijwpr.2022.359635.1725

Abstract
  The use of various pretreatments, including the torrefaction process, in order to increase the efficiency and optimize the consumption of fuel briquettes, have attracted a lot of attention in recent years. Therefore, in this research, torrefaction pretreatment at 180 ºC temperature was used to modify ...  Read More

Effect of Gamma-Ray on the Physical, Mechanical, Morphological and, Biological durability Properties of WPC Composite

Mohammad hamed Shojaie; Amir Hooman Hemmasi; Mohammad Talaei poor; Esmail Ghasemi

Volume 37, Issue 1 , April 2022, , Pages 86-98

https://doi.org/10.22092/ijwpr.2021.356586.1702

Abstract
  Utilization of ionizing rays like gamma-ray in polymers to correct their properties has attracted so much attention from researchers. Therefore, in this study, polypropylene as the composite matrix, maleic anhydride (MAPP) as the compatibilizer material, and poplar wood as the filler were placed under ...  Read More

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

The study of joints in Oak wood beam compared to the location of node and anti-node of longitudinal vibration

Mostafa Kohantorabi; Amir Hooman Hemmasi; Mohammad Talaei poor; Mehran Roohnia; Behzad Baziyar

Volume 36, Issue 3 , August 2021, , Pages 256-263

https://doi.org/10.22092/ijwpr.2021.352061.1639

Abstract
  One of the problems of non-destructive tests in the detection of the inhomogeneities in wood and wood products is their location relative to the vibrating node and antinode. Thus, the hidden inhomogeneities located at the vibration node in such materials may not have any effects on the dynamic modulus ...  Read More

The effect of using flame retardant mineral fillers on physical and thermal properties of poly lactic acid-rice husk composite

Yashar Einollahi; Amir Hooman Hemmasi; Habibollah Khademi Eslam; Esmaeil Ghasemi; Mohammad Talaei poor

Volume 36, Issue 2 , July 2021, , Pages 105-118

https://doi.org/10.22092/ijwpr.2021.352397.1646

Abstract
  Considering the increase of environmental pollutant resulted from agglomerating rubbish and wastes containing stable petroleum-based polymers, substitution of these polymers with bio-polymers and solving their problems and defects in the production process as well as the final products is an important ...  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

Applying Enzymatic treatment and Refining Sequence to Investigate Their Effect on Properties of Pulp and Paper Produced from Mixed Office Waste Paper

Mohammad Ali Hossein; Mohammad Talaeipoor; Amir Hooman Hemmasi; behzad baziyar; Saeed Mahdavi

Volume 35, Issue 2 , July 2020, , Pages 195-204

https://doi.org/10.22092/ijwpr.2020.341834.1600

Abstract
  The effect of applying the sequence of enzymatic treatment and refining was investigated on the properties of deinked pulp from mixed office waste paper (MOW). Refining was applied for 700 and 1500 revolutions. Enzymatic treatment was applied for 60 minutes with temperature of 60°C and 13% of consistency. ...  Read More

Composite wood products
The Effects of Some Production Variables on Physical and Mechanical Properties of Particleboard Made of Alnus subcordata by UF and MUF resin

Farhad Ghotbaldin; Habib alah Khademieslam; Amir Nourbakhsh; Mohammad Talaeipoor

Volume 25, Issue 2 , September 2018, , Pages 201-210

https://doi.org/10.22092/ijwpr.2010.117288

Abstract
  An experiment was conducted to study polymerization conditions and important production factors, the amount of resin and press temperature, on physical and mechanical properties of produced boards by urea formaldehyde (UF) and melamine urea formaldehyde (MUF) were compared. Purify UF resin (control treatment) ...  Read More

Effects of fungal treatments on chemi-mechanical pulp and paper properties from hornbeam wood

Jafar Ebrahimpour Kasmani; Mohammad Talaeipoor; Amir homan Hamasi; Ahmad Samariha

Volume 27, Issue 1 , March 2012, , Pages 1-15

https://doi.org/10.22092/ijwpr.2012.117075

Abstract
  The strength properties of paper produced from pulp obtained after 1, 2 and 4 weeks treatment of hornbeam chips with the Phanerochaete chrysosporium BKM - 1767 fungus was evaluated and compared with control samples. After preparing fungal specimens, hornbeam chips were exposed to this fungus for one ...  Read More

Pulp and paper
Effect of xylanase treatment on properties of alkaline peroxide mechanical pulp from poplar (Populus nigra) wood

Amir hooman Hamasi; Mehdi Sabor; Mohammad Talaeipoor; Mohammad Azadfallah

Volume 27, Issue 1 , March 2012, , Pages 156-166

https://doi.org/10.22092/ijwpr.2012.117098

Abstract
  The aim of present study was to investigate the effects of xylanase enzyme obtained from Trichoderma viride on APMP pulp from Populus nigra wood. Treatment temperature, time, enzyme dosage and pulp consistency were varied. The results demonstrated that treating by xylanase has considerable effects on ...  Read More

Pulp and paper
Effect of shape and particle size of mechanical pulp fines on paper properties

Amir mohsen Nazry; Mohammad Talaeipoor; Saeed Mahdavi

Volume 26, Issue 4 , January 2012, , Pages 605-621

https://doi.org/10.22092/ijwpr.2018.117240

Abstract
  The effects of different fines with different shape and size of mechanical Pulp on Paper Properties in two fractions was investigated. Fines was classified in two categories including fibrils and flakes , and then effect of these particles on pulp properties was studied.The fibril fraction was consist ...  Read More

Study on production of fluting paper from wheat straw soda – AQ pulp and OCC pulp blends

Farshad Sarkhosh rahmani; Mohammad Talaeipoor

Volume 26, Issue 2 , June 2011, , Pages 387-397

https://doi.org/10.22092/ijwpr.2011.117195

Abstract
  This study was carried out with the aim of producing fluting paper from wheat straw soda–AQ pulp and OCC pulp blend. Handsheets at 120 gr/m2 basis weight were made by blending the unbleached wheat straw pulp with OCC pulp at ratios of 25, 50 and 75%. Physical and strength properties of these papers ...  Read More

Effect of ink and paper characteristics on print quality in board-packaging industries based on print density index.

Khodadad Malmir cheghini; Mohammad Talaeipoor; Shademan Pormosa

Volume 26, Issue 1 , March 2011, , Pages 39-57

https://doi.org/10.22092/ijwpr.2010.117262

Abstract
  Paper and ink characteristics effect on print density were investigated.  For this purpose three types of papers and four types of printing inks at 2 viscosities levels (25-30, 50-55) were used. Then characteristics of paper & ink were measured. Inks on sampled papers Printed and then printing ...  Read More

Investigation of applying the old corrugated container (OCC) and aspen chips in particleboard production

Amir Eshraghi; Habib alah Khademeslami; Amir Nourbakhsh; Behzad Bazyar; Mohammad Talaeipoor

Volume 26, Issue 1 , March 2011, , Pages 138-150

https://doi.org/10.22092/ijwpr.2011.117156

Abstract
  In this study, aspen chips with OCC (Old Corrugated Container) were used in particleboard production and samples were prepared at two different levels of resin contents (%9 and %10) and three levels of combination: 1- %25 OCC +%75 aspen,       2- %50 OCC + %50 aspen,  ...  Read More

Pulp and paper
Effect of ink and paper characteristics on optical properties of packaging papers.Part II:Viscosity of ink 50-55

Mohammad Talaeipoor; Habib alah Khademi eslam; Khodadad Malmir chegini

Volume 24, Issue 2 , October 2009, , Pages 325-340

https://doi.org/10.22092/ijwpr.2009.117390

Abstract
  Effect of roughness & water absorption of paper and ink characteristics on optical properties was investigated.  For this purpose three type of paper and four type of printing ink was used.Then characteristics of paper & ink was measured. Inks on sampled papers Printed and then  L, ...  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

Pulp and paper
Effect of refining of deinked pulp on the optical, physical and mechanical properties of paper

Mohammad Talaei poor

Volume 24, Issue 1 , September 2009, , Pages 148-157

https://doi.org/10.22092/ijwpr.2009.117364

Abstract
  The effect of refining of recycled pulp on the optical, physical and mechanical properties of paper was investigated.The results showed that, except tear strength, all of mechanical strength of paper significantly increases by refining.While, by refining of recycled pulp the brightness increases but ...  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