Preparation of cationic PAM/ bentonite nanocomposites
produce cationic PAM/bentonite nanocomposites with covalent bonding between the exfoliated bentonite sheets and polymeric matrix. The synthesis, characterization, and flocculation properties of cationic PAM and PAM/bentonite nanocomposites by inverse emulsion polymerization technique were investigated. The effects of the introduction of grafted
L. TENNOUGA Professor
L. Tennouga currently works at Their most recent publication is 'Preparation of Rigid Bentonite/PAM Nanocomposites by an Adiabatic Process: Influence of Load Content and Nano-structure on
Preparation of Rigid Bentonite/PAM Nanocomposites by an
Preparation of Rigid Bentonite/PAM Nanocomposites by an Adiabatic Process: Influence of Load Content and Nano-structure on Mechanical Properties and Glass Transition Temperature
(PDF) Preparation of cationic PAM/bentonite
The effects of cationic PAM/bentonite nanocomposites on aq. model suspensions with GCC and talc were studied in both the absence and presence of pulp. It was found that the addn. of grafted
DEVELOPMENT OF NATURAL RUBBER/GRAPHENE DERIVATIVES
natural rubber (NR) and at the same time using Bentonite (BT) clay as the dispersing agent to produce Natural Rubber/Graphene-based derivatives-Bentonite nanocomposites. This research is to look into the development of right formulation for graphene-based nanocomposites and to study which is giving optimum properties. Morphology study of
Conformational study of different surfactants in bentonite
Conformational study of different surfactants in bentonite and PET nanocomposites International organization of Scientific Research 8 P a g e As a result, the main goal of this work is to establish relationships between the chemical structure of
PREPARATION AND CHARACTERIZATION OF
Natural rubber/bentonite nanocomposites were prepared from deproteinised natural rubber (dp-NR) and modified bentonite clay by both solvent casting and blending methods. To prepare the nanocomposites by the solvent method, the rubber was first dissolved in toluene and then mixed by stirring with the modified clay at room temperature. In the
Effect of Storage Time on the Structure and Mechanical
nanocomposites containing up to 7.5 parts per hundred resin (phr) pristine bentonite (BT) are prepared by melt compounding. Effects of the BT reinforcement and storage time on the morphology, water content, and mechanical properties of the related TPS nanocomposites are investigated on compression molded specimens. Morphology change is followed
New Superabsorbent Nanocomposites based
New Superabsorbent Nanocomposites based on Polyacrylamide/clay: Synthesis, Characterization and Investigation of their Adsorption Properties
Removal of Heavy Metal Water Pollutants (Co2+ and Ni2
2019-06-30· Nanocomposites composed of polyacrylamide and nanoclay were synthesized via free-radical cross-linking polymerization and used to adsorb Co 2+ and Ni 2+ ions from water. The polyacrylamide (PAM)/sodium montmorillonite (Na-MMT) nanocomposites were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy to
KADIR ESMER Prof. Dr. Marmara University, Istanbul
The Na/Bentonite-Polyaniline (Na/Bent-PANI) nanocomposites were synthesized by the intercalation of aniline monomer into interlayer of cation exchanged with bentonite, followed by in situ
Characterization of bentonite clay and synthesis
Polymeric nanocomposites have attracted considerable interest because this material offers unusual combination of properties. The smectite clays are commonly used as the dispersed phase to obtain nanocomposites, in particular, bentonite clays. In this work three bentonite clays without modification and after modification with salt or
Clay-polyvinylalcohol nanocomposites: Competitive
Clay-polyvinylalcohol nanocomposites: Competitive adsorption of polyvinylalcohol and plasticizers onto Na-bentonite Khairuddin A thesis submitted in partial fulfilment of the requirements of Sheffield Hallam University for the degree of Doctor of Philosophy February 2012. Declaration The work described in this thesis was carryout out by the author in the Materials and Engineering Research
Fabrication of bentonite based nanocomposite as a novel
The adsorption efficiencies of Bentonite, Fe 3 O 4 and FB were found to be low 27% and 32%, respectively. While the adsorption efficiency of nanocomposites nanocomposites was higher than pure materials this may be attributed to the formation of inner sphere complex between the metal ion and functional groups present on magnetic βCD-FB surface
Publications Prof. Tarun K. Maji
Mandal, M. and Maji, T.K. Preparation, physical properties and ultraviolet resistance of wood nanocomposites based on modified soybean oil and bentonite. Wood
Removal of Heavy Metal Water Pollutants (Co2+ and Ni2
Nanocomposites composed of polyacrylamide and nanoclay were synthesized via free-radical cross-linking polymerization and used to adsorb Co2+ and Ni2+ ions from water. The polyacrylamide (PAM)/sodium montmorillonite (Na-MMT) nanocomposites were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy to confirm the interaction
Synthesis of cationic polyacrylamide/silica
2012-10-05· We describe the preparation and characteristics of cationic polyacrylamide/silica (CPAAm/ASNP) nanocomposites for papermaking. The nanocomposites were successfully prepared by in situ inverse emulsion copolymerizations of acrylamide and [2-(acryloyloxy)ethyl]-trimethylammonium chloride (AOTAC) in the presence of acryl-grafted silica nanoparticles (ASNPs).
Guar Gum/Montmorillonite Nanocomposites and Their
Guar Gum/Montmorillonite Nanocomposites and Their Potential Application in Drug Delivery Joanna Dziadkowiec Thesis submitted to the Faculty of Graduate and Postdoctoral Studies in partial fulfillment of the requirements for the MSc degree in Chemistry Department of Chemistry Faculty of
Radiation Physics and Chemistry IPEN
a Nuclear and Energy Research Institute, IPEN-CNEN/SP, Av. Prof. Lineu Prestes 2242, Cidade Universita´ria, CEP 05508-000, S~ao Paulo, SP, Brazil b Department of Metallurgical and Materials Engineering, Polytechnic School, University of Sao Paulo, EPUSP, Av. Prof. Mello Moraes, 2463, Cidade Universita~ ´ria, CEP 05508-000, Sao Paulo, SP, Brazil~
Effect of bentonite on the physical properties and drug
Results showed that the swelling ratio for the present nanocomposite hydrogels decreased with an increase of bentonite, whereas the gel strength and Young's modulus of the present gels increased with an increase of bentonite. However, the adhesive force of the present gels did not decrease with an increase of bentonite. XRD results indicated
Factors influencing the synthesis of tunable clay–polymer
Basal spacings for bentonite-nPAM nanocomposites synthesized at (a) 20 °C, (b) 60 °C, and (c) 85 °C mixing temperatures. Download : Download full-size image; Fig. 4. Basal spacings for nanocomposites synthesized at 20 °C and 110 °C drying temperatures with (a) low molecular weight PAM and (b) high molecular weight PAM.
Characterization of bentonite clay and synthesis
Polymeric nanocomposites have attracted considerable interest due to this material offers unusual combinations of properties. The smectite clays are commonly used as the dispersed phase to obtain nanocomposites, in particular, bentonite clays. esthearildimethyl ammonium chloride. In this work three bentonite clay without modification and after
Impact of Ag nanoparticles on photomineralization
The Ag-TiO 2 /bentonite nanocomposites were synthesized from simple microwave synthesis of TiO 2 /bentonite followed by wet impregnation of AgNPs.. For the first time investigation regarding effect of weight% of AgNPs on photocatalytic activity of TiO 2 /bentonite has been carried out.. The as prepared Ag-TiO 2 /bentonite nanocomposites were highly effective in photocatalytic mineralization of
1 Preparation of rigid Bentonite/PAM nanocomposites
1 Preparation of rigid Bentonite/PAM nanocomposites by an adiabatic process: Influence of load content and nano-structure on mechanical properties and glass transition temperature Lahcene Tennouga*1, Souhila Khobzaoui1, Ismet Benabadji1, Asma Mansri1, Bouras Brahim1 1 Laboratoire d’Application des Electrolytes et des Polyélectrolytes Organiques (LAEPO). Université de Tlemcen.
Synthesis of chitin–bentonite clay based polyurethane
Chitin based polyurethane bio-nanocomposites (PUBNC) were prepared by emulsion polymerization. A mixture of polymer and bentonite clay enriched in montmorillonite (MMT) was formed in emulsion polymerization, in which MMT dispersed differently depending on interaction of MMT with polymer chains.
Moisture Diffusion in Natural Rubber/Bentonite
This study investigated the effects of clay filler treatments on moisture diffusion in natural rubber (NR)/bentonite nanocomposites. Four types of clay filler treatments were considered: sodium activation using sodium chloride (NaCl), ion exchange using hexadecyldimethylamine (HDA) chloride salt, modification using coco diethanolamide (CDEA), and wet grinding using ethanol as medium.
Mechanical Properties of Polypropylene Nanocomposites
A brown polycationic bentonite from the state of Paraiba, Brazil, was treated with sodium carbonate to transform it into a bentonite that swells in water and then treated with hexadecyltrimethylammonium ammonium chloride to transform it into a bentonite that swells in organic liquids. Polypropylene with 3 % polypropylene graft compatibilizer (PP-g-AM) was mixed with 1 % and 2 % by weight of
PHB/Bentonite Compounds. Effect of Clay Modification
PHB/Bentonite Compounds. Effect of Clay Modification and Thermal Aging on Properties 1505 Figure 1. FTIR spectra of natural (AN), purified (AP) and purified/ organophillized (AO) Bentonite clays. Figure 2. X-Ray diffratograms of natural (AN) and purified (AP) clays over a wider range of 2θ. Figure 3. X-Ray difractograms of natural (AN
The role of surfactant type on morphology and thermal
Sodium bentonite clay, Argel 35 (ARG), supplied by Bentonit União Nordeste (BUN-Campina Grande/Brazil), in powdered form, with particle size 45 m, was used as filler in the PET nanocomposites preparation. The cation exchange capacity (CEC) of this bentonite ARG
Polymer matrix nanocomposites for heavy metal
2020-01-31· Heavy metals belong to a group of lethal environmental pollutants. Ongoing efforts targeted at safeguarding public health have led to considerable attention being focused on methods that allow efficient extraction of these toxic substances. Polymer nanocomposites (PNCs) with their special characteristics are a class of adsorbents that demonstrate high potential for use in heavy metal
Resume Tabuk Portal
2-Eman Saad, Ph.D. Student Thesis “New application of styrene nanocomposites” Ain Shams University, In Working. Arbitrations. Shiwei Chen, Xuchen Lua, Zhimin Zhang, Tizhuang Wang, Feng Pan “Preparation and characterization of PMMA/reactive montmorillonite nanocomposites” Polymer composite Journal.
Studies on non-coacervated NR–SBR latices reinforced with
2020-01-28· In this work, a noble method is used to develop clay–polymer nanocomposite (CPN) with improved dispersion of bentonite clay (as reinforcing filler) in a nano-Styrene Butadiene Rubber/Natural Rubber blend system. The tendency of the clay particles to agglomerate has been reduced to a great extent. The observed increase in tensile modulus and the storage modulus of the ultimate CPN is
Preparation of Fe3O4/Bentonite Nanocomposite
The addition of bentonite to Fe 3 O 4 nanoparticles generally reduced the magnetic properties of Fe 3 O 4 /bentonite nanocomposites. The optimum condition of 30 wt% bentonite resulted 105.9 m 2 /g in surface area, 14 nm in an average particle size and 3.2 nm in pore size. It can be used as Cu and Pb adsorbent materials.
HMSPP nanocomposite and Brazilian bentonite properties
Abstract This work concerns the study of the mechanical and thermal behavior of the nanocomposite high melt strength polypropylene (HMSPP) (obtained at a dose of 12.5 kGy) and a bentonite clay Brazilian Paraiba (PB), which is known as "chocolate" and is used in concentrations of 5% and 10% by weight, in comparison to the American Cloisite 20A clay nanocomposites.
18. Özcan Elif,Kösem Gamze,Tarhan Büşranur,KAYA AHMET UĞUR,ESMER KADİR, "UV RADYASYONA MARUZ BIRAKILAN PMMA BARYUM STRONSİYUM TİTANYUM OKSİT KATKILI KOMPOZİTLERİN YAPISAL VE DİELEKTRİK ÖZELLİKLERİNİN İNCELENMESİ", 32nd Turkis Physical Society International Physics Congress, 2016.
Ahmed Magdy Hussien EPRI
68-D. E. Abulyazied, S. M. Mokhtar, A. M. Motawie, Nanoindentation Behaviorand Physical Properties of Polyvinyl Chloride /Styrene co-maleic anhydride Blend Reinforced by Nano-Bentonite, IOSR Journal of Applied Chemistry (IOSR-JAC)Volume 7, Issue 12 Ver. II. (Dec. 2014), PP 32-44
Assistant Professor Dept. of Chemistry, Jamia Millia Islamia 2009 Till date Guest (bentonite) nanocomposites using benign techniques” DST-SERC Fast Track 18, 82, 000/- 2009 2012 Completed 2. Microwave-assisted UGC- 10,89,300/- 2012 2014 Completed . 6 rapid catalytic degradation of some textile dyes using poly (1-Napthylamine) Major Research Project 3. Enhancement of Fluorescence
Adsorption of Reactive Black 5 onto quaternized 2
[2-(Methacryloyloxy)ethyl]dimethylhexadecylammonium bromide (DMAC16) was synthesized by means of quaternization of 2-dimethylaminoethyl methacrylate with 1-bromohexadecane.
APPLICATION OF CHITOSAN BASED NANOCOMPOSITES
APPLICATION OF CHITOSAN−BASED NANOCOMPOSITES CONTAINING BENTONITE−SUPPORTED SILVER AND ZINC OXIDE NANOPARTICLES FOR BACTERIAL DISINFECTION OF DRINKING WATER by Sarah Constance Motshekga Submitted in partial fulfilment of the requirements for the degree
Polyacrylamide−Clay Nanocomposite Hydrogels:
The free-radical polymerization of acrylamide in aqueous clay dispersions and the structure of the resulting polymer−clay nanocomposite hydrogels have been investigated by rheometry using oscillatory deformation tests. Laponite was used as clay particles in the hydrogel preparation. The reactions were carried out with and without the presence of the chemical cross-linker N,N‘-methylenebis