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
A feasibility study on identification of stickies and their sources in packaging paper mill

Zahra Razmpour; ghasem asadpour; kermanian hossein; omid ramezani; Seyed Majid Zabihzadeh

Volume 38, Issue 2 , June 2023, , Pages 114-127

https://doi.org/10.22092/ijwpr.2023.359989.1731

Abstract
  Sticky contaminants represent one of the biggest technical challenges in the paper recycling process. These contaminants reduce paper strength, cause plugging of wires and felts, and stick to or deposit on machine parts affecting the runnability of the paper machine In this study, firstly, the sticky ...  Read More

Pulp and paper
ontrol of micro-stickies originated from recycling of Old Corrugated Containers (OCC) using some selected chemical and physical methods

Zahra Razmpour; ghasemg asadpour; kermanian hossein; omid ramezani; Seyed Majid Zabihzadeh

Volume 38, Issue 2 , June 2023, , Pages 155-169

https://doi.org/10.22092/ijwpr.2023.360204.1733

Abstract
  Efficient approaches to eliminate or neutralize stickies is one of the topics of recent research. In the current study, some of the most conventional chemical and physical strategies in controlling these contaminants were compared. Control of micro-stickies originated from recycling of OCC using some ...  Read More

The effect of kappa factor changes in chlorine dioxide bleaching on the dissolution of pulp from OCC recycled fibers in sodium hydroxide / urea solvent

Negin Ghahrani; Noradin Nazarnezhad; Omid Ramezani; Ghasem Asadpour

Volume 37, Issue 2 , May 2022, , Pages 166-176

https://doi.org/10.22092/ijwpr.2021.354339.1677

Abstract
  Regeneration of cellulose by direct solvent dissolution essentially involves the pretreatment of cellulose with a solvent for swelling the cellulose chains and weakening the cellulose molecules bonds. Aqueous solutions based on sodium hydroxide (NaOH) are low cost, non-volatile, non-toxic, environmentally ...  Read More

The effect of kappa factor on chlorine dioxide bleaching sequence on the properties of dissolving pulp from recycled fibers (OCC)

Negin Ghahrani; Noraldin Nazrneghad; Omid Ramezani; Ghasem Asadpour

Volume 37, Issue 1 , April 2022, , Pages 28-37

https://doi.org/10.22092/ijwpr.2021.354138.1673

Abstract
  One of the common applications of cellulose is dissolving pulp producing that requires high purity. Different cellulose sources are used to produce dissolving pulp. Due to Deforestation and lack of agricultural land and problems with cultivation, the use of wood and non-wood sources of cellulose is declining. ...  Read More

Preparation and characterization of the cellulose nanocrystal properties from recycled papers and its application as a reinforcement agent in the hydroxypropyl methyl cellulose/cationic starch nanocomposite for use in food packaging industries

Khashayar Vaezi; ghasem asadpour

Volume 36, Issue 3 , August 2021, , Pages 243-255

https://doi.org/10.22092/ijwpr.2021.354193.1674

Abstract
  Concerns about environmental pollution caused by petroleum-based packaging materials waste have increased the motivation to research and study on biodegradable packaging materials. In this study, in order to make added value and reprocess of the recycled papers, cellulose nanocrystals were produced from ...  Read More

Pulp and paper
The Effect of Different Coating Formulation on the Physical, Mechanical, and Optical Properties of Papers Made from bleached CMP

ali barzan; hossein resalati; ali ghasemian; ahmadreza saraeyan; ghasem asadpour

Volume 34, Issue 2 , August 2019, , Pages 193-204

https://doi.org/10.22092/ijwpr.2019.125600.1531

Abstract
  In this study, the effect of pigment composition on the properties of paper prepared from CMP pulp was studied. There for 3 different pigment combinations (100% calcium carbonate (GCC), 70% calcium carbonate and 30% kaolin clay (70GCC30Clay) and 70% calcium carbonate and 25% gritty and 5% titanium dioxide ...  Read More

Pulp and paper
Effect of storage and bleaching of cotton fiber pulp on the stability of Bond paper optical properties

ali ghasemi chahrdehi; Esmaeil Rasooly Garmaroody; Omid Ramezani; ghasem asadpour

Volume 34, Issue 2 , August 2019, , Pages 217-227

https://doi.org/10.22092/ijwpr.2019.122765.1489

Abstract
  The aim of this study was to investigate the effect of storage and bleaching of cotton fiber on stability of optical properties of Bond paper. For this aim, industrial unbleached cotton fiber pulp with freeness 13°SR, in two types of fix and agitating was stored for 3-15 days in room temperature ...  Read More

Pulp and paper
The effect of heat ageing on color change and optical properties of bleached Chemi-Mechanical Pulp (CMP) with One and Two-stage of Sodium Hypochlorite and Hydrogen Peroxide

ghasem asadpour; fatemeh rajabi; seyed majid zabizadeh

Volume 33, Issue 4 , February 2019, , Pages 467-477

https://doi.org/10.22092/ijwpr.2018.121555.1471

Abstract
  High yield and chemi-Mechanical pulps are susceptible to oxidation-optical and thermal reactions. These reactions result discoloration and brightness reversion in pulps. In this research, chemi-mechanical pulps were selected randomly from Mazandaran pulp and paper mill and were bleached separately by ...  Read More

Pulp and paper
Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties

Ghasem Asadpour; Hadi Boroshkian; Hossein Resalaty

Volume 33, Issue 3 , September 2018, , Pages 381-390

https://doi.org/10.22092/ijwpr.2018.121405.1470

Abstract
  The purpose of this study is to investigate the effect of pH on cellulase enzyme activity on the drainage and strength properties of OCC pulp. Recycled OCC pulp was pretreated with consistency 0.4 percent, in constant condition the temperature is 50˚C, duration 1 hour and range pH:4-4.5, 8-8.5 with ...  Read More

Pulp and paper
Effect of Using Dual Composition of Cationic Starch-Nano Silica and Nano Cellulose-Poly Acrylamide On Physical and Strength Properties of Cotton Papers

Hasan Davodian; Ghasem Asadpour; Seyed majid Zabizadeh

Volume 33, Issue 3 , September 2018, , Pages 428-437

https://doi.org/10.22092/ijwpr.2018.121980.1476

Abstract
  In this study, the comparison of the use two combination of additives including the use of nano silica with cationic starch and the use of nano cellulose with cationic poly acrylamide on the physical and strength properties of cotton based paper. For this purpose, the pulp of the chemical pulp of bleached ...  Read More

Pulp and paper
Evaluating the Properties of Bleached Chemi-Mechanical Pulp (CMP) with One and Two-stage of Sodium Hypochlorite and Hydrogen Peroxide

fatemeh rajabi; seyed majid zabizadeh

Volume 33, Issue 2 , July 2018, , Pages 205-217

https://doi.org/10.22092/ijwpr.2018.120401.1458

Abstract
  The objective of this study was the evaluation of optical, mechanical properties of chemi-mechanical pulp which were bleached by one and two stage bleaching sequence of hydrogen peroxide and sodium hypochlorite. Also the environmental effects of effluents from bleached paper liquor were studied. For ...  Read More

Pulp and paper
The effect of water softening calcium carbonate on the fluting paper properties from OCC and NSSC

Mina Akbari; Ghasem asadpour; noorodin nazarnezhad

Volume 32, Issue 1 , April 2017, , Pages 118-130

https://doi.org/10.22092/ijwpr.2017.107128

Abstract
  As a result of water treatment and during the water softening and hardness reducing process, calcium carbonate deposits with other impurities produced, collected and buried as mineral sludge. This study was done to investigate the effect of using calcium carbonate filler (as a byproduct of water treatment ...  Read More

Pulp and paper
Preparation of nano-cellulose from cladophora, a fibrous algae, utilizing it at improving the strength properties of CMP pulp.

fatemeh asadi; Noradin Nazarneghad; Ghasem Asadpoor atoeei

Volume 31, Issue 4 , January 2017, , Pages 695-702

https://doi.org/10.22092/ijwpr.2016.106290

Abstract
  Nowdays, algae considering marine ecosystem are regarded as producers and the first continuum that receives solar energy. Hence, they ensure the needed energy for the aquatic organism living. In global herbal division, algae have 1800 genus and 21000 types. Because of their presence in air rather than ...  Read More

Pulp and paper
Effects of Populous Deltoids Chips Washing Pre- Treatment Method on CMP Optical and Strength properties. .

Maryam Alipoor; Ghasem Asadpur Atouei; Seaid Majid Zabihzadeh; Zohreh Ghazvini

Volume 31, Fall 3 , September 2016, , Pages 375-387

https://doi.org/10.22092/ijwpr.2021.106305

Abstract
  With considering that in chemical-mechanical pulp (CMP) production process , the wood chips washing pre-treatment is important , so this research was conducted to investigate the effect of pre-treatment washing of populous deltoids wood chips on CMP Optical(brightness and opacity) and Strength(tensile ...  Read More

Composite wood products
Effect of thermal modification on the practical properties of horn beam bark flour-polypropylene composites

ghasem asadpour; seyyed majid zabihzadeh; Maryam Ghorbani; mahmoud davoudi

Volume 31, Summer 2 , May 2016, , Pages 280-293

https://doi.org/10.22092/ijwpr.2016.105775

Abstract
  Current research was conducted to investigate the effect of thermal modification on practical properties of horn beam bark flour-polypropylene composites. Wood plastic composites were divided in two levels of control and thermal modification, both levels included of 4 groups in bark fillers; 10, 20, ...  Read More

Pulp and paper
Study of using water softening process byproduct, calcium carbonate on fine paper production

Ali Barzan; Hossein Resalati; Ghasem Asadpour atoei

Volume 30, SPRING 1 , May 2015, , Pages 14-25

https://doi.org/10.22092/ijwpr.2015.8470

Abstract
  After water purification and softening, a lot of calcium carbonate with other impurities produce and these byproducts gather and bury as mineral sludge.In this research, The quality of calcium carbonate from water softening process in mazandran wood and paper industry (MWPI) mill and effects of loading ...  Read More