Tio2/Polymer Nanocomposites for Antibacterial Packaging Application

Mha, Rehim; Alhamidi, J

doi:10.15744/2639-3328.1.101

Cited by 7 publications

(3 citation statements)

References 81 publications

(85 reference statements)

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“…Numerous studies in various branches of nanotechnology have been published, such as the use of nano-TiO2 as anti-bacterial food packaging materials by Rehim and Alhamidi 13 , whose also evaluate the use of TiO2 nanoparticles for Enviro nmental cleaning 13 . Ricardo J et al 14 , they prepared an simple and cheap nanocomposote of copper incorporated with bio cellulose polymer for antibacterial activity versus Staphylococcus aureus and Klebsiella pneumonia, they concluded the activity of antibacterial increased with increasing the copper content in nanocomposites 13 . Shokry J 14 , studied the zinc oxide nanoparticles as novel materials for antibacterial nanocomposites membrane as wound dress.…”

Section: Introductionmentioning

confidence: 99%

Nano composites of PAM Reinforced with Al2O3

Al-Dabbagh

Kadhim

2023

Baghdad Sci.J

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The aim of this investigation is to determine how different weight percentages of alumina nanoparticles, including 0.02, 0.04, and 0.06 percent wt, affect the physical characteristics of Poly Acrylamide (PAAM). Using a hot plate magnetic stirrer, 10 g of poly acrylamide powder was dissolved in 90 g of di-ionized distillate water for 4 hours to produce PAAM with a concentration of 0.11 g/ml. Four sections of the resulting solution, each with a volume of 20 ml, were created. Each solution was added independently with alumina nanoparticles in different ratios 0.0, 0.02, 0.04, and 0.06 to create four nano fluid solutions with different alumina nanoparticle contents based on each weight percent. The hand casting process for nanocomposites samples, which entailed pouring the prepared solution into an appropriate plastic mold, allowing it to cure for 24 hours, and then cutting the resulting thin film according to each test, was used to create the nano composited membranes. The tensile test was used to study tensile strength, Young's modulus, elongation, and toughness. Additionally, a test using Fourier transition infrared radiation (FTIR) was conducted to examine the chemical and physical connections between polyacrylamide and alumina nanoparticles. The morphology of the materials was examined using scan electron microscopy. The contact angles of samples were tested to limit the hydrophilicity behavior of these samples. To control the hydrophilicity behavior of these samples, the contact angles of the samples were evaluated. The results showed that including alumina nanoparticles into the PAAM matrix improves the mechanical characteristics of the resulting nanocomposites. Tensile strength increases from 1 GPa to 2.5 GPa with an increase in alumina nanoparticle content from 0 to 0.06 percent wt. For the same prior ratios, Young's modulus likewise increased, rising from 1.3 to 2 GPa. For the higher weight ratio of alumina nanoparticles (0.04 percent wt), toughness rises to 240 J/cm2. On the other hand, the addition of alumina nanoparticles increased the PAAM surface's contact angle from 55 degrees to 67 degrees, and it exhibited hydrophilic behavior

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Section: Introductionmentioning

confidence: 99%

Nano composites of PAM Reinforced with Al2O3

Al-Dabbagh

Kadhim

2023

Baghdad Sci.J

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“…Owing to the fact that the modified titania powders absorb more visible light radiations and consequently possess higher antibacterial activity as compared to pure TiO2 particles, titania doped with nonmetals like carbon, nitrogen, boron and fluorine, together with binders including wear resistant polymers are being used to make microbe-free surface coatings generally employed for fruit and vegetable containers [21]. Similarly, nanotitania modified food packaging films have been developed to produce antimicrobial and photocatalytic food packaging with toxin passivation in order to preserve food safely [22]. Other titania base nanomaterials with enhanced photocatalytic and antibacterial activities have also been developed by the previous scientists for example, doped titania nanorods, silica/titania nanospheres, silver doped titania sol-gel films, Ag doped TiO2-chitosan (STC) prepared by the inverse emulsion cross-linking reaction, Ag-TiO2 composite nanofilms on silicon wafer synthesized by sol-gel spin-coating technique, Cu-doped titanium dioxide thin films on glass substrate, sulfur-doped titania thin films prepared by atmospheric pressure chemical vapour deposition, silver-nanostructures coated TiO2 thin films on pure titania, carbon-doped TiO2 and nitrogen-doped TiO2 substrates using thermal reduction method, TiO2(N)/Ag/TiO2(N) sandwich films containing silver embedded between two TiO2(N) layers [23][24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of magnesium doped titania for photocatalytic degradation of methyl red

Zahra,

Mazhar,

Zahra

et al. 2022

Matéria (Rio J.)

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Magnesium doped titania (MDT) composites with varying magnesium weight percentages (1-5 wt. %) were synthesized through a very simple and economical route of sol-gel method. The reactants used for making alkoxide precursor were titanium tetrachloride whereas magnesium nitrate was used for doping magnesium into titania in a mixture of solvents i.e. ethyl alcohol and water. The optimum conditions maintained for preparing sol were pH 3 and 60 ºC temperature with constant stirring for 2 hours. The gel obtained after drying the sol for each sample was calcined at 500 ºC for two hours. The powdered composite samples thus prepared were characterized by X-ray diffraction analysis (XRD), differential scanning calorimetrythermogravimetric analysis (DSC-TGA), infrared spectroscopy (IR), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The samples were evaluated for their photocatalytic activity against methyl red dye under UV light irradiation and the dye degradation was examined by UV-Vis spectrophotometer. The results confirmed the excellent photocatalytic activity of synthesized magnesium doped TiO2 for the degradation of methyl red dye where MDT-3 having 3% magnesium doping exhibited the maximum degradation i.e. 96.8%.

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“…Literature revealed that addition of metal oxide nanoparticles such as nanosilica [13], ZnO [14], Titanium dioxide (TiO2) [15] and silver nanoparticles [16] that used as fillers in PLA modification. TiO2 nanoparticles have an advantage of antibacterial effects, resistant to thermal degradation and intensive ultraviolet absorption [17].…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical Study and Thermal Behavior of Plasticized Poly(Lactic Acid) Nanocomposites

Zorah

Mustapa

Daud

et al. 2021

SSP

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Poly (lactic acid) (PLA) is a useful alternative to petrochemical commodity material used in such as in food packaging industries. Due to its inherent brittleness, low thermal stability, and poor crystallization, it needs to improve its properties, namely in terms of thermal and mechanical performance. The plasticized PLA composites reinforced with nanofiller were prepared by solvent casting and hot press methods. Thermal and mechanical properties, as well as the crystallinity study of these nanocomposites, were investigated to study the effect of tributyl citrate (TBC) and TiO2 on the PLA composites. The addition of TBC improved the flexibility and crystallinity of the composites. Reinforcement of TiO2 was found as a practical approach to improve the mechanical properties, thermal stability, and enhanced crystalline ability for plasticized PLA nanocomposites. Based on the results achieved in this study, the composite with 3.5% nanofiller (pPLATi3.5) presented the optimum set of mechanical properties and improved thermal stability.

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Tio2/Polymer Nanocomposites for Antibacterial Packaging Application

Cited by 7 publications

References 81 publications

Nano composites of PAM Reinforced with Al2O3

Nano composites of PAM Reinforced with Al2O3

Synthesis and characterization of magnesium doped titania for photocatalytic degradation of methyl red

Thermomechanical Study and Thermal Behavior of Plasticized Poly(Lactic Acid) Nanocomposites

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