Fabrication and characterization of TiO2–epoxy nanocomposite

Chatterjee, Amit; Islam, Muhammad

doi:10.1016/j.msea.2007.11.052

Cited by 249 publications

(187 citation statements)

References 31 publications

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“…A further increase in the nano-filler content to 2 wt% led to the drop in the Tg value, this is due to their easy agglomeration arising from van der Waals attraction between particles. It can be seen from Figure 5b that the Tg value increases steadily then value drops; this corroborates with the trend observed by other investigators [13,30]. With our study, the degree of dispersion and nanofiller loading affected the shifts in Tg for epoxy/Ag-TiO2 composites.…”

Section: (Jcpds No 21-1272)supporting

confidence: 92%

“…The photostability and photocatalytic activity of epoxy/nano-TiO2 coatings under UV irradiation has been reported by Calza et al [12]. While doping TiO2 with silver can synergistically enhance photobactericidal acitivity of TiO2, a considerable improvement in mechanical properties can also be achieved by introducing very low amount of nano-fillers into resin system [13]. In addition, photo-stability of epoxy resin can be improved by the presence of nano-TiO2 by its UV absorption properties [14].…”

Section: Introductionmentioning

confidence: 99%

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Antibiofilm Activity of Epoxy/Ag-TiO2 Polymer Nanocomposite Coatings against Staphylococcus Aureus and Escherichia Coli

Santhosh¹,

Natarajan²

2015

Coatings

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Dispersion of functional inorganic nano-fillers like TiO2 within polymer matrix is known to impart excellent photobactericidal activity to the composite. Epoxy resin systems with Ag + ion doped TiO2 can have combination of excellent biocidal characteristics of silver and the photocatalytic properties of TiO2. The inorganic antimicrobial incorporation into an epoxy polymeric matrix was achieved by sonicating laboratory-made nano-scale anatase TiO2 and Ag-TiO2 into the industrial grade epoxy resin. The resulting epoxy composite had ratios of 0.5-2.0 wt% of nano-filler content. The process of dispersion of Ag-TiO2 in the epoxy resin resulted in concomitant in situ synthesis of silver nanoparticles due to photoreduction of Ag + ion. The composite materials were characterized by DSC and SEM. The glass transition temperature (Tg) increased with the incorporation of the nanofillers over the neat polymer. The materials synthesized were coated on glass petri dish. Anti-biofilm property of coated material due to combined release of biocide, and photocatalytic activity under static conditions in petri dish was evaluated against Staphylococcus aureus ATCC6538 and Escherichia coli K-12 under UV irradiation using a crystal violet binding assay. Prepared composite showed significant inhibition of biofilm development in both the organisms. Our studies indicate that the effective dispersion and optimal release of biocidal agents was responsible for anti-biofilm activity of the surface. The reported thermoset coating materials can be used as bactericidal surfaces either in industrial or healthcare settings to reduce the microbial loads. OPEN ACCESSCoatings 2015, 5 96

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Section: (Jcpds No 21-1272)supporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Antibiofilm Activity of Epoxy/Ag-TiO2 Polymer Nanocomposite Coatings against Staphylococcus Aureus and Escherichia Coli

Santhosh¹,

Natarajan²

2015

Coatings

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“…However, at higher temperatures, MDF with carbon fibers performed better in thermal stability than without carbon fibers with a higher char residue of 22.15 wt% at 600 °C. It was reported in previous studies that the addition of nano-clay platelets would efficiently raise the char residue of polymers at high temperatures (Hwang et al 2010;Madaleno et al 2010;Chatterjee and Islam 2008;Ismail et al 2008).…”

Section: Morphological Characteristics Thermogravimetry (Tga)mentioning

confidence: 99%

Synthesis and Characterization of Carbon Fibers and their Application in Wood Composites

Khan¹,

Gupta²,

Madusari³

et al. 2013

BioResources

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a Carbon fibers were synthesized using a low-cost, economical method. Fresh rubber wood fibers (Hevea brasiliensis) were burned using a furnace in an inert condition at 350 to 450 o C for 2-4 hours, and after that the fibers were ground at 18000 rpm for 20 to 40 seconds. The effect of carbon fibers as a reinforcement agent on mechanical, physical, and morphological properties was investigated. In the composite preparation, carbon fiber dosages (0, 0.1, 0.25, and 0.5 wt.%) were used as variable factors, along with a urea formaldehyde content of 10%. The morphology of the specimens was characterized using X-ray diffraction (XRD), Thermogravimetric analysis (TGA), and Field Emission Scanning Electron Microscopy (FESEM). The mechanical tests indicated that when carbon fibers were added, the modulus of rupture (MOR) and internal bonding strength (IB) improved significantly. From the TGA graph it was observed that the thermal stability of the composites based on carbon fiber was higher than composites without it. The thermocouple readings showed that at a higher loading of carbon, the core temperature of the board increased faster than for the control board.

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“…The larger the surface area available, the greater the photocatalytic properties [20]. The initial experiment using Ag-TiO2 particles embedded in epoxy resin showed that the photocatalytic properties of the powder had been completely hindered.…”

Section: Free Radical Release Of the Silver Doped Titanium Dioxide Fimentioning

confidence: 99%

Silver doped titanium dioxide nanoparticles as antimicrobial additives to dental polymers

Chambers

Stewart

et al. 2017

Dental Materials

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Fabrication and characterization of TiO2–epoxy nanocomposite

Cited by 249 publications

References 31 publications

Antibiofilm Activity of Epoxy/Ag-TiO2 Polymer Nanocomposite Coatings against Staphylococcus Aureus and Escherichia Coli

Antibiofilm Activity of Epoxy/Ag-TiO2 Polymer Nanocomposite Coatings against Staphylococcus Aureus and Escherichia Coli

Synthesis and Characterization of Carbon Fibers and their Application in Wood Composites

Silver doped titanium dioxide nanoparticles as antimicrobial additives to dental polymers

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