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Jonoobi, Mehdi
Publikationer (10 of 21) Visa alla publikationer
Eslah, F., Jonoobi, M., Faezipour, M. & Ashori, A. (2018). Chemical modification of soybean flour-based adhesives using acetylated cellulose nanocrystals. Polymer Composites, 39(10), 3618-3625
Öppna denna publikation i ny flik eller fönster >>Chemical modification of soybean flour-based adhesives using acetylated cellulose nanocrystals
2018 (Engelska)Ingår i: Polymer Composites, ISSN 0272-8397, E-ISSN 1548-0569, Vol. 39, nr 10, s. 3618-3625Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In this study, two types of new bioadhesives formulated from abundant and renewable soybean flour (SF), acetylated soybean flour based adhesive (ASF), and soybean flour-based adhesive, were modified with acetylated cellulose nanocrystal (ACNC). The apparent viscosity and morphology of the adhesive formulations were characterized. The chemical composition of the formulations was evaluated by FT-IR spectroscopy and the effect of polyethilenimine (PEI) on the formulations was investigated using the proton nuclear magnetic resonance (1H NMR) spectra. Moreover, water resistance of produced plywood composites bonded with the bioadhesives was measured. The results of FT-IR and 1H NMR confirmed that chemical modifications of the SF occurred. The scanning electron microscopy (SEM) images showed less holes and cracks on the cross section of the ASF/PEI/NaOH and SF/PEI/NaOH/ACNC formulations. The results showed that the plywood specimens bonded with formulations of the ASF/PEI/NaOH (with a dry weight ratio of ASF/PEI: 5/1 and 6/1), and SF/PEI/NaOH/ACNC had good resistance to water. POLYM. COMPOS., 2017. © 2017 Society of Plastics Engineers

Ort, förlag, år, upplaga, sidor
Blackwell Publishing, 2018
Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
urn:nbn:se:ltu:diva-63125 (URN)10.1002/pc.24389 (DOI)000448083600023 ()2-s2.0-85018627341 (Scopus ID)
Anmärkning

Validerad;2018;Nivå 2;2018-10-24 (johcin)

Tillgänglig från: 2017-04-24 Skapad: 2017-04-24 Senast uppdaterad: 2018-12-10Bibliografiskt granskad
Jonoobi, M., Ghorbani, M., Azarhazin, A. & Hosseinabadi, H. Z. (2018). Effect of surface modification of fibers on the medium density fiberboard properties. European Journal of Wood and Wood Products, 76(2), 517-524
Öppna denna publikation i ny flik eller fönster >>Effect of surface modification of fibers on the medium density fiberboard properties
2018 (Engelska)Ingår i: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 76, nr 2, s. 517-524Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Surface modification of mixed hardwoods fibers by sodium hydroxide (NaOH) was conducted to investigate the effect of chemical treatment on the fiber properties along with physico-mechanical characteristics of the medium density fiberboard (MDF). The results indicated that the NaOH treatments can dissolve a portion of hemicelluloses and almost all amount of extractives from the fibers, but it was not strong enough to remove the lignin thoroughly. The FTIR results illustrated that chemical changes can occur during the various NaOH treatments of the fibers. X-ray diffraction analysis revealed that the crystallinity of the studied fibers increased after the alkaline treatment. Investigation of mechanical properties of the MDF showed that modulus of rupture and internal bond strength of the treated samples were decreased compared to the control ones. In addition, water absorption and thickness swelling of treated boards were higher than that of untreated samples. This study indicated that the physico-mechanical properties of the boards were negatively affected by the NaOH treatment.

Ort, förlag, år, upplaga, sidor
Springer, 2018
Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
urn:nbn:se:ltu:diva-63911 (URN)10.1007/s00107-017-1207-6 (DOI)000423831100012 ()
Anmärkning

Validerad;2018;Nivå 2;2018-02-02 (rokbeg)

Tillgänglig från: 2017-06-12 Skapad: 2017-06-12 Senast uppdaterad: 2018-02-16Bibliografiskt granskad
Salehpour, S., Rafieian, F., Jonoobi, M. & Oksman, K. (2018). Effects of molding temperature, pressure and time on polyvinyl alcohol nanocomposites properties produced by freeze drying technique. Industrial crops and products (Print), 121, 1-9
Öppna denna publikation i ny flik eller fönster >>Effects of molding temperature, pressure and time on polyvinyl alcohol nanocomposites properties produced by freeze drying technique
2018 (Engelska)Ingår i: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 121, s. 1-9Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The main aim of this study was to develop a novel approach to incorporate high cellulose nanofiber (CNF) loadings into polyvinyl alcohol (PVA) nanocomposites. The nanocomposites were prepared by freezing via liquid nitrogen and consequent freeze drying combined with hot press molding. To investigate the effect of the molding parameters on the morphological, mechanical and thermal properties, chemical structure and transparency of the PVA + CNF nanocomposites, two different mold pressures, temperatures and holding times were used for fabrication of PVA + CNF nanocomposites. The maximum tensile strength of 121 MPa of the PVA + CNF 20% nanocomposites was obtained when they were molded at 130 °C and 50 kPa for 7 min. Dynamic mechanical analysis showed that the storage modulus of the composites prepared at 130 °C and 50 kPa for 7 min is about 20% higher than nanocomposites molded at 150 °C and 150 kPa for 10 min. Optical properties (absorption spectra) of the PVA and PVA + CNF nanocomposites were increased as the mold pressures, temperature and holding time increased. Micrographs showed more sough fracture surface with increasing pressure and temperature during hot press molding.

Ort, förlag, år, upplaga, sidor
Elsevier, 2018
Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
urn:nbn:se:ltu:diva-68590 (URN)10.1016/j.indcrop.2018.04.079 (DOI)000437996900001 ()2-s2.0-85046705277 (Scopus ID)
Anmärkning

Validerad;2018;Nivå 2;2018-05-02 (andbra)

Tillgänglig från: 2018-05-02 Skapad: 2018-05-02 Senast uppdaterad: 2018-08-08Bibliografiskt granskad
Berglund, L., Forsberg, F., Jonoobi, M. & Oksman, K. (2018). Promoted hydrogel formation of lignin-containing arabinoxylan aerogel using cellulose nanofibers as a functional biomaterial. RSC Advances, 8(67), 38219-38228
Öppna denna publikation i ny flik eller fönster >>Promoted hydrogel formation of lignin-containing arabinoxylan aerogel using cellulose nanofibers as a functional biomaterial
2018 (Engelska)Ingår i: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 8, nr 67, s. 38219-38228Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In this work, three-dimensional (3D) aerogels and hydrogels based on lignin-containing arabinoxylan (AX) and cellulose nanofibers (CNF) were prepared. The effects of the CNF and the crosslinking with citric acid (CA) of various contents (1, 3, 5 wt%) were evaluated. All the aerogels possessed highly porous (above 98%) and lightweight structures. The AX-CNF hydrogel with a CA content of 1 wt% revealed a favorable network structure with respect to the swelling ratio; nanofiber addition resulted in a five-fold increase in the degree of swelling (68 g of water per g). The compressive properties were improved when the higher CA content (5 wt%) was used; when combined with CNF, there was a seven-fold enhancement in the compressive strength. The AX-CNF hydrogels were prepared using a green and straightforward method that utilizes sustainable resources efficiently. Therefore, such natural hydrogels could find application potential, for example in the field of soft tissue engineering.

Ort, förlag, år, upplaga, sidor
Royal Society of Chemistry, 2018
Nationell ämneskategori
Biomaterial Teknisk mekanik
Forskningsämne
Trä och bionanokompositer; Experimentell mekanik
Identifikatorer
urn:nbn:se:ltu:diva-71733 (URN)10.1039/C8RA08166B (DOI)000451075500012 ()2-s2.0-85057291251 (Scopus ID)
Anmärkning

Validerad;2018;Nivå 2;2018-11-23 (johcin)

Tillgänglig från: 2018-11-23 Skapad: 2018-11-23 Senast uppdaterad: 2019-09-19Bibliografiskt granskad
Makzoom, S., Jonoobi, M., Rafieyan, F. & Pourzamani, H. (2017). Evaluating the efficiency of cellulose nanofibers in DEHP removal from water. Desalination and Water Treatment, 77, 229-236
Öppna denna publikation i ny flik eller fönster >>Evaluating the efficiency of cellulose nanofibers in DEHP removal from water
2017 (Engelska)Ingår i: Desalination and Water Treatment, ISSN 1944-3994, E-ISSN 1944-3986, Vol. 77, s. 229-236Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The removal of di(2-ethylhexyl)phthalate (DEHP) from aqueous solutions by cellulose nanofibers (CNFs), derived from softwood, was studied. The optimum conditions of four factors at four levels including the DEHP concentration (1–10 mg/L), adsorbent dose (0.5–3 g/L), contact time (30–180 min), and pH (3–9) in a batch system was investigated by the design of experiment software. The Isotherm Fitting Tool software was used to fit isotherm parameters to experimental data. The maximum removal efficiency, (74.1%), was obtained at a DEHP concentration of 10 mg/L, an adsorbent dose of 0.5 g/L, a contact time of 30 min, and a pH of 7. The amount of DEHP adsorbed per unit weight of adsorbent (qe) in the optimum conditions was 14.8 mg/g. The system was well corresponded by the generalized Langmuir–Freundlich model. The results showed that extracted CNF from softwood has a good potential for treatment of polluted aqueous solutions by DEHP.

Ort, förlag, år, upplaga, sidor
Desalination Publications, 2017
Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
urn:nbn:se:ltu:diva-65078 (URN)10.5004/dwt.2017.20777 (DOI)000407719900031 ()2-s2.0-85026240112 (Scopus ID)
Anmärkning

Validerad; 2017; Nivå 2; 2017-08-15 (andbra)

Tillgänglig från: 2017-08-15 Skapad: 2017-08-15 Senast uppdaterad: 2018-07-10Bibliografiskt granskad
Tahir, P. M., Zaini, L. H., Jonoobi, M. & Khalil, H. P. (2015). Preparation of Nanocellulose from Kenaf (Hibiscus cannabinus L.) via Chemical and Chemo-mechanical Processes (ed.). In: (Ed.), Jitendra K. Pandey ; Hitoshi Takagi; Antonio Norio Nakagaito; Hyun-Joong Kim (Ed.), Handbook of Polymer Nanocomposites. Processing, Performance and Application: Polymer Nanocomposites of Cellulose Nanoparticles (pp. 119-144). Paper presented at . Berlin: Encyclopedia of Global Archaeology/Springer Verlag
Öppna denna publikation i ny flik eller fönster >>Preparation of Nanocellulose from Kenaf (Hibiscus cannabinus L.) via Chemical and Chemo-mechanical Processes
2015 (Engelska)Ingår i: Handbook of Polymer Nanocomposites. Processing, Performance and Application: Polymer Nanocomposites of Cellulose Nanoparticles, Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2015, s. 119-144Kapitel i bok, del av antologi (Refereegranskat)
Abstract [en]

A fundamental understanding of the relationships between basic fiber properties, methods of processing, and composite end use performance properties has been well developed due to recent advances within the biocomposites research community. Simultaneously, advanced engineered biocomposites are currently being developed to meet the diverse needs of users for high-performance materials as well as economical commodity products. Advancements in nanotechnology have led to industrial isolation of nanocrystalline cellulose [1, 2]. While nanocrystalline cellulose may be only 1/10 as strong as carbon nanotubes – currently the strongest known structural material [3, 4] – it may cost 50–1,000 times less to produce [5, 6]. Engineered biocomposites employing nanocrystalline cellulose reinforcement could soon provide advanced performance, durability, value, service life, and utility, while at the same time being a fully sustainable technology.

Ort, förlag, år, upplaga, sidor
Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2015
Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
urn:nbn:se:ltu:diva-20330 (URN)10.1007/978-3-642-45232-1_52 (DOI)2-s2.0-84943389549 (Scopus ID)3f8256e3-1dac-4685-bab5-00fc041dc23d (Lokalt ID)978-3-642-45231-4 (ISBN)978-3-642-45232-1 (ISBN)3f8256e3-1dac-4685-bab5-00fc041dc23d (Arkivnummer)3f8256e3-1dac-4685-bab5-00fc041dc23d (OAI)
Anmärkning
Godkänd; 2015; 20150116 (andbra)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad
Jonoobi, M., Mathew, A. P. & Oksman, K. (2014). Natural Resources and Residues for Production of Bionanomaterials (ed.). In: (Ed.), Kristiina Oksman; Aji P. Mathew; Alexander Bismarck; Orlando Rojas; Mohini Sain (Ed.), Handbook of Green Materials: Processing Technologies, Properties and Applications. Paper presented at . Singapore: World Scientific and Engineering Academy and Society
Öppna denna publikation i ny flik eller fönster >>Natural Resources and Residues for Production of Bionanomaterials
2014 (Engelska)Ingår i: Handbook of Green Materials: Processing Technologies, Properties and Applications, Singapore: World Scientific and Engineering Academy and Society, 2014Kapitel i bok, del av antologi (Refereegranskat)
Ort, förlag, år, upplaga, sidor
Singapore: World Scientific and Engineering Academy and Society, 2014
Serie
Materials and Energy ; 5
Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
urn:nbn:se:ltu:diva-21415 (URN)e6803fe6-2235-4bfe-8350-1a2b18655fd4 (Lokalt ID)978-981-4566-45-2 (ISBN)978-981-4566-47-6 (ISBN)e6803fe6-2235-4bfe-8350-1a2b18655fd4 (Arkivnummer)e6803fe6-2235-4bfe-8350-1a2b18655fd4 (OAI)
Anmärkning
Godkänd; 2014; 20140702 (andbra)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2017-11-24Bibliografiskt granskad
Jonoobi, M., Aitomäki, Y., Mathew, A. P. & Oksman, K. (2014). Thermoplastic polymer impregnation of cellulose nanofibre networks: Morphology, mechanical and optical properties (ed.). Paper presented at . Composites. Part A, Applied science and manufacturing, 58, 30-35
Öppna denna publikation i ny flik eller fönster >>Thermoplastic polymer impregnation of cellulose nanofibre networks: Morphology, mechanical and optical properties
2014 (Engelska)Ingår i: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 58, s. 30-35Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Biobased nanocomposite sheets of cellulose nanofibres (CNF) and cellulose acetate butyrate (CAB) were prepared using a resin impregnation technique. Porous nanofibre networks together with a low viscosity thermoplastic resin were the key elements in the processing. SEM images of the network before the impregnation showed high porosity and after the impregnation indicated impregnated fibre network. A significant improvement in the visible light transmittance was observed for the nanocomposite compared to the nanofibre network, which is explained on the filling of the pores with a transparent matrix. The tensile tests showed an increase of 364% and 145% for stiffness and strength respectively for nanocomposites with 60 wt.% CNF when compared to CAB. Dynamic mechanical properties showed a good interaction between the CAB and cellulose nanofibres. These results show that CAB impregnated cellulose nanofibre networks are promising biocomposite that could be used in applications where transparency and good mechanical properties are of interest.

Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
urn:nbn:se:ltu:diva-16047 (URN)10.1016/j.compositesa.2013.11.010 (DOI)000331161900005 ()2-s2.0-84890406836 (Scopus ID)fa140ceb-1d0f-4854-a340-ec96de694b30 (Lokalt ID)fa140ceb-1d0f-4854-a340-ec96de694b30 (Arkivnummer)fa140ceb-1d0f-4854-a340-ec96de694b30 (OAI)
Anmärkning
Validerad; 2014; 20131125 (andbra)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad
Oksman, K., Mathew, A. P., Jonoobi, M., Hietala, M. & Vargas, N. H. (2013). Cellulose nanocomposites processing using extrusion (ed.). In: (Ed.), M.T. Postek; R.J. Moon; A Rudie; M Bilodeau (Ed.), Production and Applications of Cellulose Nanomaterials: (pp. 99-102). Paper presented at . : TAPPI Press
Öppna denna publikation i ny flik eller fönster >>Cellulose nanocomposites processing using extrusion
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2013 (Engelska)Ingår i: Production and Applications of Cellulose Nanomaterials, TAPPI Press, 2013, s. 99-102Kapitel i bok, del av antologi (Refereegranskat)
Abstract [en]

We have been working with development of compounding extrusion process for cellulose nanocomposites, since 2003. Feeding and dispersion of the nanocellulose materials are the main challenges and we have developed two specific processing routes; i) liquid feeding of the nanomaterials into the extruder and ii) dry feeding of nanomaterials as a master batch, to address the feeding problem. Composites with aggregated, partially dispersed or fully dispersed nanocellulose crystals or fibers have been obtained depending on the extent of the separation of cellulose nanocrystals or nanofibers in the liquid medium or in the master batch and the interaction of nanocelluloses with the polymer matrix. We aim to produce nanocomposites with good mechanical properties, thermal stability and transparency and at the same time develop an energy efficient and cost effective processing methodology, which can be up-scaled in industrial level.

Ort, förlag, år, upplaga, sidor
TAPPI Press, 2013
Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
urn:nbn:se:ltu:diva-20091 (URN)1db992f7-ffb5-4475-909c-803359c46b9f (Lokalt ID)978-1-59510-224-9 (ISBN)1db992f7-ffb5-4475-909c-803359c46b9f (Arkivnummer)1db992f7-ffb5-4475-909c-803359c46b9f (OAI)
Anmärkning
Godkänd; 2013; 20130608 (krioks)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-05-28Bibliografiskt granskad
Oksman, K., Mathew, A. P., Jonoobi, M., Siqueira, G., Hietala, M. & Aitomäki, Y. (2013). Cellulose nanofiber isolated from industrial side-streams (ed.). In: (Ed.), M.T. Postek; R.J. Moon; A Rudie; M Bilodeau (Ed.), Production and Applications of Cellulose Nanomaterials: (pp. 187-190). Paper presented at . : TAPPI Press
Öppna denna publikation i ny flik eller fönster >>Cellulose nanofiber isolated from industrial side-streams
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2013 (Engelska)Ingår i: Production and Applications of Cellulose Nanomaterials, TAPPI Press, 2013, s. 187-190Kapitel i bok, del av antologi (Refereegranskat)
Abstract [en]

Isolation of cellulose nanofibers from industrial side-streams as raw material is interesting from several reasons; it will not only result in lower overall cost of the nanofibers but also add value for many different processes and products. We have used sludge, a residue from pulp production, carrot residue from juice production, and several agricultural waste products as the starting material to isolate nanofibers. The isolation process was made using a Masuko ultra fine friction grinder and our aim have been to optimize the processing parameters for the lowest energy consumption. In addition to developing the isolation process, the isolated nanofibers structure and properties were characterized. Typically, the isolated nanofibers are bundles with diameters lower than 100 nm. In particular, we found that carrot nanofibers have a uniform fiber size less than 50 nm. Scanning electron microscopy studies showed entangled nanofiber networks and the mechanical properties of nanofiber networks demonstrated a positive impact on modulus and strength when compared to networks with microsized fibers. The improvement is increased with decreased fiber size indicating more efficient fibrillation. From these studies, we have shown that industrial side-streams are excellent raw material sources for nanofiber preparation, being cheaper than other raw materials and consuming less energy for isolation while showing good properties.

Ort, förlag, år, upplaga, sidor
TAPPI Press, 2013
Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
urn:nbn:se:ltu:diva-19980 (URN)0c91e881-765a-4d19-aeb5-7696f348d6c2 (Lokalt ID)978-1-59510-224-9 (ISBN)0c91e881-765a-4d19-aeb5-7696f348d6c2 (Arkivnummer)0c91e881-765a-4d19-aeb5-7696f348d6c2 (OAI)
Anmärkning
Godkänd; 2013; 20130608 (krioks)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-05-28Bibliografiskt granskad
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