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)
Comparison of the efficiency of two adsorbents activated carbon and beech wood powder copper-modified in removing sulfide ions (S-2) from the black liquor of Kraft pulp and paper

Masoumeh Mollaei; Mazaher Moeinaddini; Nematollah Khorasani; Mohammad Azadfallah; Amirhooman Hemmasi

Volume 35, Issue 4 , January 2021, , Pages 376-391

https://doi.org/10.22092/ijwpr.2020.343056.1617

Abstract
  Sulfide ions (S-2 ) derived from Na2S remaining in black liqueur are the source of H2S gas production along the black liquor recovery cycle in the Kraft pulp and paper industry. In this study, we tried to prevent the production of H2S by removing the mentioned ions from black liquor by using of synthesized ...  Read More

Modification of deinked pulp (DIP) by CMC Grafting

Zahra Gholami; Mohammad Azadfallah; soheila izadyar; Mehdi Roohani

Volume 34, Issue 4 , February 2020, , Pages 475-487

https://doi.org/10.22092/ijwpr.2020.127976.1574

Abstract
  In this research, deinked pulp (DIP) was modified with carboxymethyl cellulose (CMC) in order to introduce more charged groups on the surfaces of fibers which leads to improve strength properties. Modification of the pulp was conducted at mild reaction temperature conditions of 85, 95°C and 120°C ...  Read More

Management and Economics wood
Effects of free and microencapsulated biocides on characteristics of wood coatings and their mold growth resistance

Seyed Mahmoud Miri Tari; asghar tarmian; Mohammad Azadfallah; Abdolkhani Ali; Davood Efhamisisi

Volume 34, Issue 1 , April 2019, , Pages 39-49

https://doi.org/10.22092/ijwpr.2019.123839.1499

Abstract
  DOR:98.1000/1735-0913.1398.34.45.66.1.1575.1575 Mold growth resistance of Polyurethane and Diotrol coatings containing natural (Thyme essential oil) and synthetic (IPBC) fungicides in both free and microencapsulated forms was studied. Polymethyl methacrylate (PMMA) microcapsules were prepared using solvent ...  Read More

Pulp and paper
Potential of GL as cationic polymer to control stickies of OCC pulp

Ali Ahmadi ladjimi; Mohammad Azadfallah; Mehdi Rahmaninia; Yahya Hamzeh

Volume 33, Issue 2 , July 2018, , Pages 256-269

https://doi.org/10.22092/ijwpr.2018.116639.1450

Abstract
  Stickies is among the major challenges in paper recycling mills. This substance deposits on paper machine components and cause to break paper web as well as loss of end product quality. So, it is necessary to control the stickies and lessen its detrimental effects. It is known that cationic polymers ...  Read More

Chemical conversion
Adsorption of rhodamine B with activated carbon prepared from beech wood

Mahmoud Rouhbakhsh Bidaei; Mohammad Azadfallah; Rasoul Yarahmadi

Volume 33, Issue 2 , July 2018, , Pages 280-289

https://doi.org/10.22092/ijwpr.2018.116836.1451

Abstract
  Dyes release into waste water due to its toxicity for some organisms results in major environmental pollution problems. The activated carbon (AC) is an efficient adsorbent to remove this kind of pollutants from aqueous phase. Hence, in this research activated carbon was prepared from sound and rotted ...  Read More

Pulp and paper
Adhesion improvement of water-based flexographic inks on polyethylene coated paperboard by silane adhesion promoters

Alireza Sukhtesaraie; Mohammad Azadfallah; Saeed Bastani

Volume 33, Issue 1 , April 2018, , Pages 76-87

https://doi.org/10.22092/ijwpr.2017.114515.1428

Abstract
  Flexographic printing is the most usable technology in the packaging industry. But the lack of proper adhesion of water-based ink on cardboard coated with polyethylene is one of the most important problems. Silane adhesion promoters are considered among the best compounds used as the crosslinking and ...  Read More

Pulp and paper
Hydrophobization of Paper Using Organosilane and Titanium Dioxide Nanoparticles with Layer by Layer Method

Bagher Ashrafi Rad; Mohammad Azadfallah; Fatemeh Kolaei Moakhar; Soheila Izadyar; Mehdi Rahmaninia

Volume 32, Issue 4 , November 2017, , Pages 530-540

https://doi.org/10.22092/ijwpr.2017.114822.1433

Abstract
  Utilization of paper as packaging material and developing applied technological program on paper-based substrate are drastically dependent to control of cellulosic fiber hydrophilicity and to enhancement of its hydrophobic properties. Then this work carried out with the aim of developing hydrophobic ...  Read More

Pulp and paper
Assessment of accelerated aging for thermally upgraded transformer insulation paper by dicyandiamide

Mohammad Azadfallah; Hamid Khodabandehlo; Amirabas Shaygani Akmal

Volume 31, Fall 3 , September 2016, , Pages 446-457

https://doi.org/10.22092/ijwpr.2016.106280

Abstract
  The oil-impregnated dielectric papers are the main components of distribution transformer which govern its service time. Therefore, durability enhancement of this grade of paper will cause to extend transformers life. Hence in this research long fiber unbleached Kraft pulp and mixture of it with bagasse ...  Read More

Pulp and paper
The effect of pulp and cellulose nanofiber cyanoethylation on the physical properties of transformer insulating paper

Mohammad Azadfallah; Hamid khodabandehlo; Amir abas Shayeghani akmal

Volume 31, SPRING 1 , March 2016, , Pages 1-13

https://doi.org/10.22092/ijwpr.2015.105604

Abstract
       The properties of transformer electrical insulating papers are influenced by fiber chemical modification process. In this research, the effect of cyanoethylation of fibers and addition of cyanoethylated cellulose nanofiber (CNF) on dielectric properties including capacitance, dielectric ...  Read More

Pulp and paper
The Effect of Chitosan - Poly (vinyl alcohol) Coatings on Strength and Barrier Properties of Packaging Paper

masoumeh mollaei; Mohammad Azadfallah; Yahya Hamzeh; faramarz khodaian chegini

Volume 30, Summer 2 , August 2015, , Pages 330-340

https://doi.org/10.22092/ijwpr.2015.12923

Abstract
  The Effect of Chitosan - Poly (vinyl alcohol) Coatings on Strength and Barrier Properties of Packaging PaperAbstract In this research the mechanical and barrier properties of hand-sheets made of virgin and recycled fibers were studied after coating by chitosan and poly (vinyl alcohol) polymer blends. ...  Read More

Pulp and paper
Evaluation of the refining effects on the properties of transparent paper produced from bagasse fiber

farzaneh shiralizadeh; mohammad azadfallah; ali Abdolkhani; mohammad Layeghi; saeed mahdavi

Volume 29, Fall 3 , November 2014, , Pages 484-492

https://doi.org/10.22092/ijwpr.2014.7621

Abstract
     This study was conducted with the aim of producing laboratory samples of transparent paper using overbeating method. Hence, bagasse bleached soda pulp was subjected to post-bleaching sequence of DED to remove residual chromophores. Then this pulp was refined in a PFI mill to reach different ...  Read More

Dielectric properties of oil impregnated kraft and soda pulps

kezhal Moradyan Gilan; Mohammad Azad fallah; Amir abbas Shayghani akmal; Ali Abdolkhani

Volume 28, Summer 2 , June 2013, , Pages 329-340

https://doi.org/10.22092/ijwpr.2013.2937

Abstract
  This research was carried out with the aim of determining dielectric properties of bagasse unbleached soda pulp, long fiber kraft pulp and a mixture of both (20% kraft + 80% bagasse soda).The hand-sheets with 60 g/m2 basis weight were made after adjusting the freeness of pulps at levels of 200 ± ...  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

Composite wood products
Effect of steam treatment on chemical changes of wood components

Hamid Hatefnia; Ali akbar Enayati; Kazem Dost hosseini; Mohammad Azadfallah

Volume 26, Issue 4 , January 2012, , Pages 682-698

https://doi.org/10.22092/ijwpr.2011.117245

Abstract
  Poplar wood chips were treated by steaming in different conditions. The chemical composition changes of milled wood were studied. The obtained results indicate hemicelluloses degradation, reduction of acetyl groups and formation of organic acid during the treatment. It was also found that steam treatment ...  Read More

Pulp and paper
Analysis of photodegraded lignin from hardwood bleached chemimechanical pulp by 13C-NMR

Mohammad Azadfallah; Arezo Noori

Volume 24, Issue 2 , October 2009, , Pages 254-263

https://doi.org/10.22092/ijwpr.2009.117380

Abstract
  Yellowing of lignin-rich mechanical pulp is mainly attributed to light-induced changes in lignin structure. Hence, in this study the photodegradation of milled wood lignin (MWL) prepared from hardwood bleached chemimechanical pulp (BCMP) was investigated. The lignin preparation was then impregnated on ...  Read More