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  • دکتری (1387)

    گرایش صنایع سلولزی

    دانشگاه تهران، ایران

  • کارشناسی‌ارشد (1383)

    رشته علوم و صنایع چوب و کاغذ

    دانشگاه تهران، ایران

  • کارشناسی (1381)

    رشته علوم و صنایع چوب و کاغذ

    دانشگاه تهران، ایران

  • فرآیندهای نوین ارزیابی و کاربرد نانوالیاف در صنایع کاغذ و سلولزی
  • توسعه فرآیندهای برپایه موادکلوئیدی و نانوذرات در صنایع سلولزی
  • محصولات با ارزش افزوده زیاد از ضایعات الیاف لیگنوسلولزی و صنایع تولیدکاغذ

    دکتر امیر خسروانی هیات علمی گروه علوم و صنایع چوب و کاغذ در گرایش صنایع سلولزی دانشگاه تربیت مدرس (1390 تا کنون) بوده و درحال حاضر دارای فعالیت های آموزشی و پژوهشی در مقاطع ارشد و دکتری در زمینه فرآیندهای نوین کاربرد نانوالیاف در صنایع کاغذ و سلولزی، توسعه فرآیندهای برپایه موادکلوئیدی و نانوذرات در صنایع سلولزی، فناوریهای پیشرفته تولید کاغذ، شیمی کاغذ، الیاف طبیعی و کاربردهای نانو مواد در کاغذسازی می باشند. ایشان در مقطع کارشناسی فارغ التحصیل دانشگاه تهران با رتبه اول، رتبه اول آزمون سراسری کارشناسی ارشد (1381)، رتبه اول آزمون ورودی دکتری دانشگاه تهران (1383) و فارغ التحصیل (1387) دانشگاه تهران هستند. ایشان مدرس دروس شیمی کاغذ، فناوریهای تولید کاغذ پیشرفته و الیاف طبیعی در مقطع ارشد و مدرس دروس موادکلوییدی و نانوذرات در کاغذسازی در مقطع دکتری می باشند. همچنین در زمینه پژوهشی با کسب عنوان پژوهشگر برتر (مقالات کیفی برتر)، ثبت اختراع مورد تایید سازمان پژوهشهای علمی و صنعتی ایران، انتشار دو عنوان کتاب، چاپ مقالات متعدد فارسی و انگلیسی تلاش ویژه ای داشته اند. بعلاوه از سال 1384 تاکنون تجارب گوناگون صنعتی و مشاوره ای در زمینه صنایع سلولزی، تولیدکاغذ، تبدیل کاغذ، آنالیز انواع کاغذ و مواد سلولزی را نیز در کارنامه خود دارند.

    ارتباط

    رزومه

    Production of Multi-ply Paperboard from Old Corrugated Container Pulp and Application of Fine Materials in the Middle Layer

    JF Kalurazi, A. Khosravani
    Journal PapersIranian Journal of Wood and Paper Industries , Volume 11 , Issue 1, 2020 June , {Pages 109-119 }

    Abstract

    Fiber Fines for Fabricating Lignocellulose Films and the Effect of Lignin

    M. Pourjafar, A. Khosravani, R. Behrooz
    Journal PapersBioresources , Volume 15 , Issue 2, 2020 April 27, {Pages 4417-4433 }

    Abstract

    Excess lignocellulose fines in some fiber processing mills cause issues and hurt product quality. To use this type of biomaterial as a resource, surplus fines can be separated and dissolved with solvents for further transformation. Therefore, 1-butyl 3-methyl imidazolium chloride ionic liquid (IL) was used as a powerful green solvent for a rapid dissolution process. However, a low degree of polymerization (DP) of the cellulose in fines and the effects of lignin content and its structure on the process and film properties are controversial subjects. This study demonstrated that the three dimensional structure of lignin did not permit the raw bagasse fines (prior to pulping) to dissolve in the IL even after several hours. However, following d

    The effect of electerical conductivity on the performance and interaction of cationic anionic nanosilica in pulp slurry -starc

    A.H. Mehranfar, A. Khosravani, M. Rahmaninia
    Journal PapersIranian Journal of Wood and Paper Science Research , Volume 35 , Issue 1, 2020 June , {Pages 102-112 }

    Abstract

    The performance of raw and oxidized starch as reinforcing additives of internal bond in recycled multilayer paperboards

    E. Fatehi, M. Rahmaninia, A. Khosravani, Z. Iron
    Journal PapersIranian Journal of Wood and Paper Science Research , Volume 35 , Issue 1, 2020 June , {Pages 76-87 }

    Abstract

    Effectability of Runoff Generation and Soil Loss from Application of Residual Fine Amendments in Small Experimental Plots

    A. Zare, S., Sadeghi, S.H.R., Khosravani
    Journal PapersJournal of Water and Soil Conservation , Volume 27 , Issue 2, 2020 May , {Pages 195-207 }

    Abstract

    Investigation on adsorption, configuration and performance of chitosan polyelectrolyte in pulp slurry by ellipsometry technique

    H.R. Ramezani, N., Khosravani, A., Rudi
    Journal PapersIranian Journal of Wood and Paper Science Research , Volume 34 , Issue 4, 2020 March , {Pages 535-546 }

    Abstract

    Lignocellulosic hydrogel prepared from recycled old corrugated containers pulp using ionic liquid as a green solvent

    A. Sangtarashani, M.H., Rahmaninia, M., Behrooz, R., Khosravani
    Journal PapersJournal of Environmental Management , Volume 270 , 2020 January , {Pages https://doi.org/10.1016/j.jenvman.2020.1 }

    Abstract

    The effect of kaolinite on the properties of lignocellulose superabsorbent from old corrugated container fiber fines

    V. Nejati, A. Khosravani, R. Behrooz
    Journal PapersIranian Journal of Wood and Paper Industries , Volume 10 , Issue 4, 2020 March , {Pages 531-542 }

    Abstract

    The effect of addition of lignocellulosic nanofiber produced from old corrugated container pulp on recycled paperboard properties

    S.M. Yousefhashemi, A. Khosravani, H. Yousefi
    Journal PapersIranian Journal of Wood and Paper Industries , Volume 9 , Issue 4, 2019 March , {Pages 575-583 }

    Abstract

    Isolation of lignocellulose nanofiber from recycled old corrugated container and its interaction with cationic starch-nanosilica combination to make paperboard

    S.M. Yousefhashemi, A. Khosravani, H. Yousefi
    Journal PapersCellulose , Volume 26 , Issue -, 2019 January , {Pages }

    Abstract

    In recent years, many studies have been carried out on the use of cellulose nanofiber (CNF) produced from virgin fiber as a strengthening agent for improving the physical and mechanical properties of paper, while the use of CNF isolated from bleached virgin fiber is not necessary or reasonable for many recycled/impure products. In this due, novel lignocellulose nanofiber (LCNF) was produced from inexpensive recycled old corrugated container pulp by the ultra-fine grinding technique. The diameter of the resulted LCNF was in the range of 10–80 nm, while the cellulose crystallinity index and crystallite size reduced during the process to 49% and 4 nm, respectively. Regarding the chemical composition of LCNF, no significant change was observe

    Effect of chitosan molecular weight on the performance of chitosan silica nanoparticle system in recycled pulp

    E. Amiri, M. Rahmaninia, A. Khosravani
    Journal PapersBioresources , Volume 14 , Issue 4, 2019 August 7, {Pages 7687-7701 }

    Abstract

    The application of chitosan biopolymer with and without nanoparticles in the papermaking process was investigated. The effect of the chitosan’s molecular weight on its interaction with silica nanoparticles in recycled old corrugated container pulp was studied. Initially, the nanosilica particles were analyzed via atomic force microscopy and scanning electron microscopy, which confirmed the spherical shape of the silica nanoparticles with diameter less than 5 nm. Dynamic light scattering method was used to determine the zeta potential and the hydrodynamic radius of the chitosan with different molecular weights. Infrared spectroscopy was used to show the possibility of hydrogen bonding between the chitosan and the nanosilica. The results sh

    Effect of chitosan electrostatic charge on the performance of chitosan-nanosilica in recycled pulp from old corrugated container

    E. Amiri, M. Rahmaninia, A. Khosravani
    Journal PapersIranian Journal of Wood and Paper Industries , Volume 9 , Issue 3, 2018 December , {Pages 459-469 }

    Abstract

    The effect of dissolution time on wettability and certain properties of cellulose film produced using ionic liquid

    B. Sadeghi Nik, A. Khosravani, B. Mohebby, H. Yousefi
    Journal PapersIranian Journal of Wood and Paper Industries , Volume 9 , Issue 2, 2018 September , {Pages 223-234 }

    Abstract

    The effect of lignin on processing and the properties of lignocellulose material recovered by ionic liquid

    A Khosravani, M Pourjafar, R Behrooz
    Journal PapersIOP Conference Series: Materials Science and Engineering , Volume 368 , Issue 1, 2018 June , {Pages 012029 }

    Abstract

    As a prospective raw material, lignin containing papermaking fibers can be easily recycled, dissolved with proper solvents and reused. However, in order to utilize this material, more eco-friendly green dissolution methods are also required. As a green solvent, ionic liquids (ILs) have been attracted too much interest in processing of lignocellulosic biopolymers, but the practical effect of lignin on this process was not clear. In this due, production of lignocellulosic bio-composite films from bleached (lignin-free) and unbleached (lignin-containing) soda pulps was studied. First, fibers were dissolved in 1-Buthyl 3-Methyl Imidazolium Chloride (BMIMCL) at 85-95 C. Following fabrication and preparation of the lignocellulosic films, certain

    The effect of cationic starch degree of substitution on nanoparticle system performance in old corrugated containers recycling

    AH MEHRANFAR, A KHOSRAVANI, M RAHMANINIA
    Journal Papers , Volume 70 , Issue 10024, 2017 January 1, {Pages 147-155 }

    Abstract

    Cationic starch has been widely used with various mineral nanoparticles such as nanosilica, in wet-end of papermaking. This study was aimed to study the effect of cationic starch with different degrees of substitution (DS: 0.018 and 0.045) in nanoparticle containing system with nanosilica, in recycled OCC pulp. In this respect, initially, to study the shape and dimensions of nanosilica sol particles, atomic force microscopy (AFM) and transmission electron microscopy (TEM) was used; thereby the average size of nanosilica sols were measured less than 50 nm. Moreover, in order to study the papermaking process parameters, the results revealed that high DS cationic starch (0.045) resulted more effective interactions with silica nanoparticles, so

    The influence of nanochitosan addition on the process and quality properties of printing and writing paper made from recycled fibers

    M RAHMANINIA, KH HOSSEINIAN, A KHOSRAVANI
    Journal Papers , Volume 69 , Issue 4, 2017 January 1, {Pages 831-840 }

    Abstract

    Improving the processing and the recycled paper properties is one of permanent concern of papermaking. In this research, the effect of nanochitosan addition on the process and product quality made of writing and printing recycled fiber was investigated. Being nano size and so its capability in access to the space between pulp suspension components and also its probable ability to make electrostatic and hydrogen bonds are the characteristics of nanochitosan. For this purpose, the chitosan nanoparticles were prepared and their size and shape was confirmed with AFM and FE-SEM. Also, the change in FTIR spectrum after conversion of chitosan to nanochitosan was considered and omitting the–NH 2 in chitosan and creation of–CONH groups in nanoch

    COMPARING THE EFFECT OF SILICA SOL AND BENTONITE NANOPARTICLES ON THE PERFORMANCE OF CATIONIC STARCH WITH RESPECT TO DRAINABILITY, RETENTION AND STRENGTH PROPERTIES OF RECYCLED?…

    S JAHANSHAHLOU, A KHOSRAVANI, M RAHMANINIA
    Journal Papers , Volume 32 , Issue 2, 2017 January 1, {Pages 227-237 }

    Abstract

    Production of test liner and fluting paper from old corrugated containers is one of the most common paper recycling processes in Iran. This type of papers are among the high basis weight papers and also contain significant fine fibrous and non-fibrous materials. Hence, the drainage and in addition, the retention of fine materials, are the obstacles for the paper mills. In these cases, usually application of drainage/retention aids, such as nanoparticle systems can be of good help. In this respect, colloidal silica and bentonite are the two most commonly used nanoparticles with polyelectrolytes in papermaking wet-end. Therefore, in this research, the effect of bentonite and silica sol nano-particles on the performance of cationic starch was

    COMPARING THE EFFECT OF SILICA SOL AND BENTONITE NANOPARTICLES ON THE PERFORMANCE OF CATIONIC STARCH WITH RESPECT TO DRAINABILITY, RETENTION AND STRENGTH PROPERTIES OF RECYCLED …

    S JAHANSHAHLOU, A KHOSRAVANI, M RAHMANINIA
    Journal Papers , , {Pages }

    Abstract

    Fabrication and properties of cellulose-nanochitosan biocomposite film using ionic liquid

    Farzam Niroomand, Amir Khosravani, Habibollah Younesi
    Journal PapersCellulose , Volume 23 , Issue 2, 2016 April 1, {Pages 1311-1324 }

    Abstract

    Chitosan is a widely used biopolymer with very attractive properties. However, to compensate for the deficiencies in the application of this bio-macromolecule, many studies have been performed on the preparation of chitosan blends with various polymers, such as cellulose, which is abundant and unique with a tough bio-structure. Because of the different dissolution conditions of chitosan and cellulose, an acceptable industrial and environmentally friendly process to prepare a monotonous cellulose-chitosan composite film has not been achieved yet. Therefore, as an alternative approach, nanochitosan (Nano-CS) particles were synthesized and blended with a cellulose matrix, which was dissolved using ionic liquid. Atomic force micr

    Comparison of chitosan performance in a single or nanoparticle system as a wet end additive in recycled printing and writing papers

    KHOSRO HOSSEINIAN, MEHDI RAHMANINIA, AMIR KHOSRAVANI
    Journal Papers , Volume 68 , Issue 4, 2016 January 1, {Pages 815-827 }

    Abstract

    To compensate for some inferior properties of recycled papers, application of processing chemical aids such as chitosan can be quite effective in the wet end section of papermaking. In this study, the performance of chitosan biopolymer, individually or associated with nanobentonite was investigated as wet end additive on recycling process of white cuttings. For this purpose, the performance of this biopolymer at 0.5, 1, 1.5 and 2%(based on oven-dried pulp) were compared in a single polymer system or with nanobentonite. The results revealed that dosing different amounts of chitosan resulted in increasing tensile, tear and burst indices. Moreover, improvement in first pass retention (5 and 10% in single and nanoparticle system, respectively)

    دروس نیمسال جاری

    • دكتري
      مواد كلوئيدي و نانو ذرات در كاغذ سازي ( واحد)
      دانشکده منابع طبیعی و علوم دریایی، گروه علوم و صنايع چوب و كاغذ
    • كارشناسي ارشد
      شيمي كاغذسازي ( واحد)
    • كارشناسي ارشد
      فرآوري خمير كاغذ ( واحد)

    دروس نیمسال قبل

    • كارشناسي ارشد
      الياف طبيعي ( واحد)
      دانشکده منابع طبیعی و علوم دریایی، گروه علوم و صنايع چوب و كاغذ
    • كارشناسي ارشد
      فناوري هاي پيشرفته توليد كاغذ ( واحد)
    • 1397
      حسيني هتكه پشتي, سيدعلي
      بررسي مقايسه اي عملكرد نشاسته كاتيوني در كاربردهاي سطحي و دروني مقواي بازيافتي
    • 1398
      شيخعلي, حافظه
      داده ای یافت نشد
      داده ای یافت نشد
    • انتشار کتاب در زمینه فناوری بازیافت کاغذ - 1385
    • انتشار کتاب در زمینه کاربرد ریزذرات و نانوذرات در کاغذسازی- 1390
    • پژوهشگر برگزیده - ثبت اختراع - 1395
    • پژوهشگر برگزیده - ثبت اختراع - 1395
    • پژوهشگر برگزیده -مقالات کیفی برتر - 1399

    مهم

    جدید

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